Insertion sheet for textile interior products, manufacturing method thereof, and textile interior product including same

Abstract

In the present invention, a fiber-made sheet is provided that can mitigate, over a relatively long period of time, odors arising in a space in which a fiber-made interior product is being used, and / or that can cause a rug to release a fragrant scent. This rug interpolation sheet includes: a sheet; and a material obtained by removing at least a portion of an essential oil or of moisture from the woody component and / or the leaves of a tree. The material is carried on at least one surface of the sheet, and a portion of the material penetrates inside the sheet in the thickness direction of the sheet and / or fills at least a portion of a void within the sheet. The material is a powdery substance having an average particle diameter of 1 to 2,000 μm.

Description

[Technical field]

[0001] The present disclosure relates to an insert sheet for textile interior products, which is used by being inserted inside textile interior products such as rugs, a method for producing the same, and a textile interior product (such as a rug) including the same. [Background technology]

[0002] In textile interior products such as tatami mats and carpets, sheet materials such as nonwoven fabrics, woven fabrics, knitted fabrics, etc. may be inserted inside to provide cushioning properties, etc. The sheet materials inserted inside textile interior products such as carpets do not appear on the surface of the textile interior products such as carpets, and are therefore sometimes provided with functions other than cushioning properties, etc. For example, Patent Document 1 proposes a scented tatami mat in which a coating composition layer made by mixing inorganic porous fine particles or inorganic porous hollow fine particles carrying a fragrance with a coating resin is formed on one side of a sheet such as nonwoven fabric or paper, and the layer is embedded between the tatami surface and the tatami floor.

[0003] In addition, Patent Document 2 proposes a core sheet for tatami mats using a core-sheath type solid composite fiber with a specific olefin polymer composition containing essential oil as the core and polyester as the sheath. According to Patent Document 2, by placing this core sheet between the tatami mat surface and the tatami mat floor, it is possible to enjoy the forest bathing effect for a long period of time.

[0004] In recent years, there has been a trend toward increasing the airtightness of rooms in ordinary houses, as well as in facilities such as restaurants and hotels. There is a problem that odors generated in airtight spaces are difficult to eliminate, and there is always a demand for methods to reduce this odor.

[0005] The present inventors focused on textile interior products such as rugs, curtains, fabric blinds, tapestries, partitions, wallpaper, and fabric sofas and chairs, which occupy a large area in ordinary houses and facilities, and thought that by providing these with deodorizing functions, it would be possible to efficiently and effectively deodorize the space. Patent Documents 1 and 2 propose placing a sheet containing fragrances or essential oils between the tatami surface and the tatami floor, but do not propose a configuration that exerts a deodorizing effect over a long period of time.

[0006] Recently, artificial tatami mats, in which the surface is made of synthetic resin filaments rather than natural rush grass, have been proposed and are now widely used. Artificial tatami mats are superior to natural rush grass in terms of dust mite resistance, but do not inherently have the same fragrance as natural rush grass. Therefore, even if the texture is similar to that of natural rush grass, it may still be difficult to eliminate the artificial texture. Furthermore, some users may feel that artificial tatami mats emit a unique odor.

[0007] It is possible to apply the techniques proposed in Patent Documents 1 and 2 to generate a fragrance. However, the inorganic porous microparticles or inorganic porous hollow microparticles carrying a fragrance proposed in Patent Document 1 are prepared separately and carried by the fragrance, but inorganic porous microparticles have a variety of pore sizes from microporous to macroporous, so they must be used according to the size of the fragrance molecules, which not only makes handling complicated but also causes a problem that inorganic matter remains when discarded. In the fiber using the specific polyolefin-based polymer composition proposed in Patent Document 2, the essential oil is covered by the polyolefin-based polymer and cannot fully exhibit the function of the essential oil, and there is also a problem with the kneadability of the essential oil into the polyolefin-based polymer, so it cannot be denied that it is poor in versatility. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Japanese Patent Application Publication No. 6-330606 [Patent Document 2] Patent No. 2889005 Summary of the Invention [Problem to be solved by the invention]

[0009] To provide an insert sheet for use in a textile interior product such as a rug, which can alleviate odors generated in a space in which the textile interior product such as a rug is used or odors emitted by the rug itself for a relatively long period of time and / or can cause the textile interior product such as a rug to emit a fragrance, a manufacturing method thereof, and a textile interior product, such as a rug, including the insert sheet. [Means for solving the problem]

[0010] The present disclosure relates to an embodiment of an insert sheet for a fiber interior product, the insert sheet comprising a sheet and a material obtained by removing at least a part of essential oils and moisture from wood and / or leaves of a tree, the material is supported on at least one surface of the sheet, and a portion of the material penetrates into the sheet in a thickness direction of the sheet and / or fills at least a portion of voids in the sheet; The material is a powder having an average particle size of 1 μm to 150 μm. Provides an insert sheet for textile interior products.

[0011] The present disclosure also provides, as another embodiment, a textile interior product including the insert sheet for textile interior products.

[0012] Furthermore, as another embodiment, the present disclosure provides a floor covering comprising the above-mentioned sheet for textile interior products. The floor covering is, for example, a tatami mat or a carpet. Effect of the Invention

[0013] According to an embodiment of the present disclosure, a material obtained by removing at least a part of essential oils and moisture from wood and / or leaves of a tree is supported on at least one surface of a sheet (e.g., nonwoven fabric) to be inserted into a textile interior product such as a rug. This material is a solid material, and the wood and / or leaves that make up the material are nonvolatile, and the components such as essential oils contained in the material are not easily volatilized, so that a sheet carrying the material can exert the function (e.g., deodorizing effect) that the material exerts for a long period of time. Therefore, the insert sheet for textile interior products of the present disclosure is particularly suitable for forming textile interior products that are used for a long period of time, such as rugs. [Brief description of the drawings]

[0014] [Figure 1] SEM image of the surface of the nonwoven fabric of this embodiment produced in Example 2 taken at 50x magnification [Diagram 2] SEM image of the surface of the nonwoven fabric of this embodiment produced in Example 2 taken at 500x magnification [Diagram 3] SEM image of the cross section of the nonwoven fabric of this embodiment produced in Example 2 taken at 200x magnification [Figure 4] SEM image of the surface of the nonwoven fabric of this embodiment produced in Example 4 taken at 40x magnification DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] The present inventors have focused on a material obtained by removing essential oils and the like from wood and / or leaves of trees as a material that has a deodorizing effect and / or an aromatic effect. This material is nonvolatile, has a deodorizing effect for a relatively long period of time, and can also be made into a powder with a relatively small particle size. The present inventors have considered using a sheet such as a nonwoven fabric having a powder of the material derived from trees on at least one surface as an insert sheet for a textile interior product such as a rug. As a result, they have found that a textile interior product such as a rug in which the deodorizing effect and / or aromatic effect of the material is exerted for a long period of time can be easily obtained by inserting the sheet, and have arrived at this embodiment. In addition, the material is a naturally derived material from which at least a part of the essential oils and moisture has been removed, and can appropriately release the scent felt in the forest. Therefore, even if a textile interior product (e.g., a rug) into which the sheet of this embodiment is inserted is used over a large area, the scent from the material is unlikely to be excessively strong, and the indoor environment can be made comfortable.

[0016] (Material from which essential oils and at least a portion of the water have been removed) One embodiment of the present disclosure is a sheet such as a nonwoven fabric having, at least on its surface, a material obtained by removing at least a portion of essential oils and moisture from wood and / or leaves of a tree. First, this material will be described. The material used in this embodiment is obtained by removing at least a part of the essential oil and water from the wood and / or leaves of a tree, and can be said to be the residue (or residual material) after removing at least a part of the essential oil and water. Therefore, the material contains less liquid (generally, essential oil and water) than the amount of liquid contained in green wood, and is in a drier state compared to green wood, but residues (residual oils) of essential oils and the like are usually present, and it is believed that these residues contribute to the sustained deodorizing and / or aromatic function.

[0017] The material is obtained by removing at least a part of the essential oil and water from the wood and / or leaves of the tree. The material may be obtained by any method, for example, by removing (i.e., extracting) the essential oil (and water) by distillation under reduced pressure from the wood and / or leaves of a felled tree. The distillation under reduced pressure may be performed while irradiating microwaves. The method of distilling and extracting the essential oil (and water) under reduced pressure while irradiating microwaves (hereinafter referred to as "reduced pressure steam distillation method") is a method of extracting the essential oil using only the water originally contained in the material, utilizing the property of microwaves to directly heat water molecules. The material obtained by the reduced pressure steam distillation method is suitable for use as a powder because it is easily pulverized, especially by mechanical processing. Details of the reduced pressure steam distillation method are described, for example, in JP2015-160154A and WO2010 / 098440A.

[0018] Alternatively, the material used in this embodiment may be obtained by a method in which only the essential oil is at least partially removed from the woody parts and / or leaves of the tree, and the moisture is removed in a separate step, or by a method in which the essential oil and at least a portion of the moisture are removed from the woody parts and / or leaves of the tree, and then at least a portion of the moisture is further removed in a separate step. A portion of the moisture contained in the woody parts and / or leaves of the tree can also be removed by carrying out a drying process before or during processing into a powdered material.

[0019] The material used in this embodiment may be derived from any one or more of the woody parts of a tree, i.e., branches, trunks, and roots, or may be derived from the leaves of a tree, or may be derived from both the woody parts and leaves of a tree. In this sense, the term "and / or" is used. The material derived from both the woody parts and leaves of a tree may be, for example, obtained by subjecting branches and leaves (with leaves attached to the branches) removed from the trunks of a tree in a sawmilling process to extraction of essential oils by reduced pressure steam distillation.

[0020] It is more preferable that the material used in this embodiment is derived from at least the leaves of a tree. "Derived from at least the leaves of a tree" means that the material contains a component or part derived from the leaves of a tree, and the material "derived from at least the leaves of a tree" may further contain a component or part derived from the woody part of a tree. The fact that the material is derived from at least the leaves of a tree can be confirmed, for example, by observing the material with an optical microscope and finding that the material contains green or blue parts derived from chloroplasts. When the material is derived from at least the leaves of a tree, it is preferable because it contains a large amount of components such as monoterpenes and sesquiterpenes.

[0021] The tree may be at least one species selected from, for example, the genus Chamaecyparis obtusifolia (Cupressaceae), the genus Arborescens (Cupressaceae), the genus Juniperus (Cupressaceae), the genus Cedar (Cupressaceae), the genus Abies spp. (Abies) (Pinaceae), the genus Cedrus (Pinaceae), the genus Picea (Pinaceae), the genus Larch (Pinaceae), the genus Tsuga (Pinaceae), the genus Eucalyptus (Myrtaceae), the genus Sciadopitys (Bulgarian alder), the genus Kaya (Taxaceae), and the genus Thuja (Cupressaceae).

[0022] Examples of trees in the Cupressaceae genus include Japanese cypress, Taiwan cypress, Japanese cypress, Lawson cypress, Japanese cypress, Japanese sawara, peacock cypress, Chinese cypress, Suiryu cypress, Japanese cypress, Chinese cypress, Chinese cypress, Chinese cypress, and Himurosugi. Examples of trees in the Cupressaceae genus include Japanese cedar and Japanese cedar. Examples of trees in the Cupressaceae genus include Japanese cedar, Japanese mouse cedar, Japanese emperor juniper, and Okinawan juniper. Examples of trees in the Cupressaceae genus Cryptomeria japonica include Japanese cedar, Japanese cedar, Japanese cedar, and Japanese cedar.

[0023] Examples of trees in the genus Abies of the Pinaceae family include Abies sachalinensis, Abies alba, Abies veitchii, Abies mariesii, Abies veitchii, Balsam fir, Abies mitsunensis, White fir, Amabilis fir, Abies sachalinensis, California red fir, Grand fir, and Noble fir. Examples of trees in the genus Picea of ​​the Pinaceae family include Picea glehnii and Picea abies. Examples of trees in the genus Pinus of the Pinaceae family include Picea glaberrima, Picea monadelpha, Picea strobus, and P. pumila. Examples of trees in the genus Larix of the Pinaceae family include Larix larches. Examples of trees in the genus Tsuga of the Pinaceae family include Tsuga tsuga. Examples of trees in the genus Eucalyptus of the Myrtaceae family include Eucalyptus, Silver malt eucalyptus, Camaldolensis, and Lemon eucalyptus. Examples of trees in the genus Siberian pine of the Veronica family include Siberian pine. Examples of trees in the genus Kaya of the Taxaceae family include Kaya. Examples of trees in the genus Thujopsis of the Cupressaceae family include Thujopsis dolabrata, Thujopsis dolabrata, Hinoki Thujopsis dolabrata, and Narrow-leaved Thujopsis dolabrata.

[0024] Particularly preferred tree raw materials include Japanese cypress, Taiwanese cypress, and Japanese hiba, which are trees of the genus Chamaecyparis obtusifolia of the Cupressaceae family; Japanese cedar, which is a tree of the genus Cryptomeria japonica of the Cupressaceae family; Abies sachalinensis and fir, which are trees of the genus Abies dahurica of the Pinaceae family; Eucalyptus, which is a tree of the genus Eucalyptus of the Myrtaceae family; Sciadopitys umbellata, which is a tree of the genus Sciadopitys dahurica of the Cupressaceae family; and Scutellaria hiba, which is a tree of the genus Thuja dolabrata of the Cupressaceae family. These tree raw materials are preferably used because they are widely distributed in Japan and are easily available.

[0025] The material is a material in which at least a part of the essential oil and water has been removed from the wood and / or leaves of a living tree, but the essential oil may not be completely removed and some may remain in the material. In this case, the essential oil may contribute to the deodorizing function and / or aromatic function of the material. In particular, the material in which the residue of essential oil remains has multifunctionality due to the function of the residue of essential oil and the porous structure of the material, and exhibits particularly high deodorizing and / or aromatic functions, and is preferably used.

[0026] The essential oils present in the material preferably contain components such as monoterpenes and sesquiterpenes, and more specifically, preferably contain at least one component selected from α-pinene, β-pinene, camphene, santhene, tricyclene, β-caryophyllene, myrcene, alloocimene, isoprene, ocimene, pyronene, cryptotenene, β-phellandrene, 2,4(8)-p-menthadiene, menogelene, sesquitronene, zingiberene, sabinene, 3,8(9)-p-menthadiene, terpinen-4-ol, citronellal, bornyl acetate, α-terpineol, δ-3-carene, terpinolene, γ-terpinene, and 1,8-cineole.

[0027] The essential oil present in the material is preferably low volatile and / or non-volatile. The lower the volatility, the longer the essential oil's function (e.g., deodorizing function and / or fragrance function) will be exhibited. In addition, the essential oil component preferably contains a component with a relatively large molecular weight. The higher the molecular weight, the less likely it is to volatilize. When essential oil is extracted from wood of a tree or the like, essential oils with smaller molecular weights and / or more easily volatile are preferentially extracted, so that essential oils with lower volatility and / or larger molecular weights tend to remain in the material. The essential oil components remaining in the material preferably contain less monoterpenes and more sesquiterpenes, diterpenes or tetraterpenes. If the proportion of terpenes with large molecular weights such as sesquiterpenes and diterpenes is high, it is possible to exhibit deodorizing and / or fragrance functions for a long period of time and to exhibit various deodorizing functions, i.e., to deal with various odors.

[0028] The material generally exerts a deodorizing function and / or a fragrance function. When the material exerts a fragrance function, the fragrance function is believed to be exerted by essential oils present in the material. The material can reduce odors, for example, from human sweat and sebum in indoor spaces, odors from garbage and waste, odors from pets and pet excrement, and odors from urine and feces in toilet spaces. In addition, it can reduce odors that adhere to the rug itself, such as odors from the soles of the feet and odors from spilled food. The material preferably has a function of deodorizing odors from at least one selected from ammonia, hydrogen sulfide, methyl mercaptan, acetic acid, isovaleric acid, toluene, and unsaturated aldehydes (e.g., nonanal), more preferably at least one selected from ammonia, hydrogen sulfide, and methyl mercaptan.

[0029] Furthermore, if the material has an aromatic function, the odor is masked by the aroma from the material, and is sensorily weakened.

[0030] The material is supported in powder form on a sheet such as a nonwoven fabric, etc. The material can be powdered using, for example, a jet mill using a high-speed air stream, a ball mill, a hammer mill, or a wet-type fine grinding device using a high-pressure water stream.

[0031] In this embodiment, the average particle size of the powdered material may be appropriately set according to the fiber interior product to be used. The average particle size may be, for example, 1 μm to 2000 μm, particularly 1 μm to 1000 μm, and more particularly 1 μm to 300 μm. Alternatively, the average particle size may be, for example, 1 μm to 150 μm, preferably 1 μm to 100 μm, particularly 1 μm to 30 μm, further 3 μm to 15 μm, and even more preferably 5 μm to 10 μm. In addition, since the powdered material made of the material generally has a particle size distribution, even if the average particle size is within the above range, if the particle size distribution range is wide (i.e., powdered material with a large particle size is included), it may not disperse well in the binder resin and may cause processing troubles during coating. In addition, when the particle size distribution range is wide, the product after processing with the binder resin may have insufficient adhesion and the powder may fall off. Therefore, in this embodiment, the maximum particle size of the powder of the material may be 400 mesh sieve (approximately 32 μm or less), and in particular, particles of 20 μm or less may account for 90% (volume) or more. The average particle size and particle size distribution of powdery materials can be measured using a laser diffraction / scattering particle size distribution analyzer (specifically, a laser diffraction particle size distribution analyzer (Shimadzu Corporation, SALD 2300)), and the average particle size is expressed as the median diameter (D50).

[0032] (Sheet) Next, we will describe the sheet used in this embodiment, which can carry the material described above on at least one surface and allows the material to penetrate in the thickness direction and / or fill some voids.

[0033] The sheet before carrying the material (hereinafter also referred to as "precursor sheet") is not particularly limited as long as it can carry the powder of the above-mentioned material on at least one surface and the material can penetrate in the thickness direction of the sheet and / or fill some of the voids in the sheet. That is, it is important that the sheet maintains the voids on the surface of the sheet while filling some of the voids in the sheet on at least one surface. Alternatively, the sheet may be one that allows the powder of the above-mentioned material to be partially carried inside the sheet. Such a sheet is, for example, a porous sheet having voids throughout the sheet, and specifically, for example, a fiber sheet such as a nonwoven fabric, paper, woven fabric, knitted fabric, etc., as well as a foam and a porous film.

[0034] The paper used as the precursor sheet is produced by a wet papermaking method, and is classified as a nonwoven fabric described later, and is sometimes called a wet nonwoven fabric. The paper constituting the insert sheet for textile interior products may be the paper constituting wallpaper, etc.

[0035] The fabric used as the precursor sheet is, for example, Hessian cloth, which is used as a base fabric for carpets and is made by weaving hemp yarn or polypropylene flat yarn in a lattice pattern.

[0036] In order to support the powdery material even inside the precursor sheet, the precursor sheet may have a certain degree of bulkiness. For example, when the precursor sheet is a fiber sheet, the fiber density may not be excessively high. If the fiber density is too high, the dense fibers may prevent the powdery material (or a mixture of the powdery material and the binder resin, the binder resin will be described later) from penetrating into the precursor sheet. In addition, a precursor sheet with too high a fiber density may have low breathability, which may cause stuffiness when inserted into a fiber interior product such as a rug. On the other hand, if the fiber density is too low, the powdery material may fall off. The fiber density of the fiber sheet before processing (precursor sheet) is, for example, 0.025 g / cm. 3 ~0.400g / cm 3and in particular 0.040 g / cm 3 ~0.300g / cm 3 After processing (insertion sheet), the density is 0.050 g / cm 3 ~0.800g / cm 3 and in particular 0.080 g / cm 3 ~0.600g / cm 3 It may be.

[0037] Alternatively, the specific volume may be used as an index relating to the support of the powder inside the precursor sheet. The specific volume of the sheet before processing (precursor sheet) is, for example, 2.50 cm 3 / g~50cm 3 / g, and in particular 3.00 cm 3 / g~40cm 3 / g. After processing (insertion sheet) is 1.25 cm 3 / g~20cm 3 / g, in particular 1.60 cm 3 / g~15cm 3 / g.

[0038] Alternatively, air permeability may be used as an index relating to the support of powdery materials inside the precursor sheet. The air permeability of the sheet is, for example, 5 cm before processing (precursor sheet). 3 / cm 2 / sec~800cm 3 / cm 2 / sec, particularly 10 cm 3 / cm 2 / sec~700cm 3 / cm 2 / sec. After processing (insertion sheet) is 1cm 3 / cm 2 / sec~600cm 3 / cm 2 / sec, particularly 5 cm 3 / cm 2 / sec~500cm 3 / cm 2 / second.

[0039] If the mechanical properties of the insert sheet, such as the strength, are reduced as a result of the fiber sheet satisfying the above fiber density, a compression part may be provided in the fiber sheet to improve the mechanical properties. Although the fiber density is high in the compression part, making it difficult to support the powdery material therein, by forming the compression part, it is possible to achieve a balance between more effective support of the powdery material and the mechanical properties of the entire sheet. The compression part may be formed particularly when a nonwoven fabric is used as the fiber sheet.

[0040] In this embodiment, the material constituting the precursor sheet is not particularly limited, and may be selected according to the application of the product into which the finally obtained sheet is inserted. For example, when the precursor sheet is a fiber sheet such as a nonwoven fabric, the fiber sheet is, for example, Synthetic fibers made of one or more thermoplastic resins selected from polyester-based resins such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, and copolymers thereof, polyamide-based resins such as nylon 6, nylon 66, and copolymers thereof, polyolefin-based resins such as polymethylpentene, polypropylene, and polyethylene (including high-density polyethylene, low-density polyethylene, and linear low-density polyethylene), and acrylic-based resins; Natural fibers such as cotton, silk, wool, hemp, and pulp; Rayon and polynosic obtained by the viscose process, cupra obtained by the cuprammonium process, cellulosic fibers obtained by the solvent spinning process (such as Lenzing Lyocell (registered trademark) and Tencel (registered trademark)), and regenerated fibers such as cellulose fibers obtained by the solvent spinning process (including those whose surfaces have been treated with a hydrophobizing agent), and Acetate and other semi-synthetic fibers The fiber may be formed of one or more fibers selected from:

[0041] When the precursor sheet is not a fiber sheet, the material constituting the precursor sheet may be one or more selected from the thermoplastic resins listed above as the materials for the synthetic fibers. When the precursor sheet is a foam or a porous film, it may be made of polyethylene or the like.

[0042] (Nonwoven fabric) An example of a fiber sheet that can be used as a precursor sheet is a nonwoven fabric. Is soft Since the nonwoven fabric is soft, bulky, and lightweight, it is preferably used as the precursor sheet. Hereinafter, the nonwoven fabric that can constitute the inner sheet of the present embodiment will be described.

[0043] The nonwoven fabric is not particularly limited as long as it can support the powder of the above material on at least one surface. For example, the nonwoven fabric may be one in which at least some of the fibers are bonded together to form an integrated structure, or the fibers are entangled together to form an integrated structure, or the fibers are bonded together and entangled together to form an integrated structure.

[0044] The nonwoven fabric in which the fibers are at least partially bonded together may be, for example, a nonwoven fabric in which the fibers are bonded together by melting or softening a portion of the fibers, or a nonwoven fabric in which the fibers are bonded together with an adhesive. Examples of nonwoven fabrics in which the fibers are bonded together with a portion of the fibers include the following. A thermally bonded nonwoven fabric produced by subjecting a fiber web (e.g., wet method, carding method, airlaid method, or other dry method) made of short fibers (e.g., fibers having a fiber length of 1 mm to 20 mm) or staple fibers (e.g., fibers having a fiber length of 10 mm to 100 mm) to heat treatment to melt or soften a part of the fibers. Spunbond nonwoven fabrics made by continuously stacking molten or softened long fibers (spunbond method) Meltblown nonwoven fabrics are manufactured by blowing ultra-fine fibers onto the fabric (meltblown method).

[0045] Examples of nonwoven fabrics in which fibers are entangled and integrated are needle-punched nonwoven fabrics and hydroentangled nonwoven fabrics. Needle-punched nonwoven fabrics are produced by entangling fibers with barbed needles, while hydroentangled nonwoven fabrics are produced by entangling fibers with the action of high-pressure water (or high-pressure fluid) flows.

[0046] As described above, when the mechanical properties such as the strength of the nonwoven fabric are reduced, the mechanical properties may be improved by providing a compressed portion in the nonwoven fabric. Although the fiber density in the compressed portion is high, making it difficult to support the powdery material therein, by forming the compressed portion, it is possible to achieve a balance between more effective support of the powdery material and the mechanical properties of the entire nonwoven fabric.

[0047] For example, the nonwoven fabric having a pressure-bonded portion may be a nonwoven fabric exemplified above that is subjected to a pressure-bonding process, and has a pressure-bonded portion that is a portion where fibers are bonded together by a part of the fibers and is thinner than other portions. The pressure-bonded portion is formed, for example, by applying heat and pressure by embossing, so that the fiber form is not maintained in the pressure-bonded portion and a film-like substance may be formed. The nonwoven fabric having a pressure-bonded portion is, for example, a form of nonwoven fabric in which fibers are integrated by adhesion because the fibers are bonded together at the pressure-bonded portion even if the fibers are not bonded together in portions other than the pressure-bonded portion.

[0048] In this embodiment, a powder of the above material (hereinafter also simply referred to as "powder") is supported on at least one surface of a precursor sheet such as a nonwoven fabric, and preferably also inside the precursor sheet and / or in the voids of the precursor sheet. The powdery material carried inside and / or in the voids remains in the precursor sheet and exerts a predetermined function even if the powdery material carried on the surface of the precursor sheet falls off due to friction or the like, making it possible to maintain a predetermined effect for a long period of time. In addition, when the powdery material carried inside and / or in the voids of the sheet has an aromatic function, the action of applying force to the fiber interior product, for example, in the case of a rug, stepping on it, turning over in bed, pulling it, folding it, etc., causes the fragrance to be pushed out of the powdery material inside by a pump action, making it possible to feel the aromatic effect more. Furthermore, the material tends to contain components that are difficult to volatilize, and these components are gradually released as aromatic components. The aromatic components are temporarily stored inside the sheet, so that the accumulated fragrance is pushed out from the space inside the sheet due to the action, making it possible to feel the aromatic effect.

[0049] The fibers constituting the nonwoven fabric as the precursor sheet are not particularly limited and are selected depending on the application of the insert sheet, etc. Examples of the fibers constituting the nonwoven fabric are as described above as examples of the fibers constituting the fiber sheet.

[0050] When the nonwoven fabric is composed of synthetic fibers, the synthetic fibers may be either monofilaments or bicomponent fibers, such as concentric or eccentric sheath-core bicomponent fibers, islands-in-the-sea bicomponent fibers, side-by-side bicomponent fibers, or splittable bicomponent fibers.

[0051] The synthetic fibers may also be those that melt or soften by heating or the like to exhibit adhesiveness. By using such synthetic fibers, the above-mentioned thermally bonded nonwoven fabric can be manufactured, and the pressure-bonded portion can also be formed. For example, the synthetic fibers may be single fibers or composite fibers that contain a resin with a relatively low melting point, such as polyethylene, as one component, and the low-melting-point resin component occupies at least a part of the fiber surface. Such fibers are, for example, core-sheath composite fibers made of a combination of polyethylene / polypropylene or polyethylene / polyethylene terephthalate, with polyethylene as the sheath component. When using synthetic fibers that can bond fibers together, the synthetic fibers may be contained in the nonwoven fabric in an amount of, for example, 5% by mass or more, particularly 10% by mass or more, and more particularly 20% by mass or more.

[0052] The fiber fineness is not particularly limited. It is selected according to the type and use of the fiber interior product in which the insert sheet is used. The fiber fineness may be, for example, in the range of 0.1 dtex to 17 dtex, particularly in the range of 0.2 dtex to 6.6 dtex, or in the range of 0.25 dtex to 3.3 dtex.

[0053] The fiber length of the fibers is not particularly limited. For example, when the nonwoven fabric is manufactured using a fiber web produced using a wet paper machine, the fiber length may be 1 mm or more and 20 mm or less. For example, when the nonwoven fabric is manufactured using a fiber web produced using a carding machine and subjected to a bonding treatment or entanglement treatment, the fiber length may be 10 mm or more and 100 mm or less, particularly 25 mm or more and 100 mm or less, more particularly 32 mm or more and 70 mm or less. When the nonwoven fabric is a spunbond nonwoven fabric, the fibers are present in the form of long fibers, whereas when the nonwoven fabric is a meltblown nonwoven fabric, the fibers are present in an irregular form of various lengths.

[0054] The nonwoven fabric may be produced by subjecting a web selected from a card web such as a parallel web, a cross web, a semi-random web, and a random web, an air-laid web, and a wet-laid paper web to a bonding or entangling treatment. The thermally bonded nonwoven fabric may be produced by a method of heat-treating a web using, for example, a hot air penetration type heat treatment machine, a hot air blowing type heat treatment machine, or an infrared type heat treatment machine. In particular, the hot air penetration type heat treatment machine and the hot air blowing type heat treatment machine make it easy to obtain a bulky nonwoven fabric and to carry a powdery material inside the nonwoven fabric. Alternatively, the fibers may be bonded to each other by irradiation with an electron beam or ultrasonic welding. Alternatively, as described above, the nonwoven fabric may be a spunbond nonwoven fabric produced by a spunbond process, or a meltblown nonwoven fabric produced by a meltblown process.

[0055] The basis weight of the nonwoven fabric may be appropriately selected depending on the type, thickness, and durability of the function of the powdered material of the fiber interior product into which the nonwoven fabric is inserted. For example, when the nonwoven fabric of the present embodiment is inserted between the tatami mat surface and the tatami mat floor, the basis weight of the nonwoven fabric is, for example, 10 g / m 2 ~300g / m 2 and 20 g / m 2 ~250g / m 2 and in particular 30 g / m 2 ~220g / m 2 When the nonwoven fabric of this embodiment is inserted into a carpet, the basis weight of the nonwoven fabric may be, for example, 10 g / m 2 ~300g / m 2 and in particular 20 g / m 2 ~100g / m 2 It may be.

[0056] Since the nonwoven fabric of this embodiment may be subjected to external forces such as tension when inserted into a rug, the nonwoven fabric preferably has mechanical properties sufficient to prevent it from breaking due to the external forces. The strength of the nonwoven fabric in the machine direction (MD) may be, for example, 20 N / 5 cm or more, particularly 30 N / 5 cm or more, and the strength of the cross direction (CD) may be, for example, 5 N / 5 cm or more, particularly 8 N / 5 cm or more.

[0057] (Structure of precursor sheet) The precursor sheet may have a single layer structure or a laminated structure. When the precursor sheet has a laminated structure, even if the sheet carries a powdery substance near its surface, the sheets are stacked together, so that the powdery substance is easily carried inside the layer in the thickness direction of the layer, and the deodorizing and aromatic functions are exerted even inside the layer, and the sustained release property is good.

[0058] (binder resin) In this embodiment, a binder resin may be used to support and fix the powdery material on at least one surface of the nonwoven fabric. The binder resin is not particularly limited and may be, for example, any of acrylic resin, urethane resin, ethylene vinyl acetate resin (EVA resin), and polyvinyl alcohol resin (PVA resin). The binder resin may be a mixture of two or more different resins. The binder resin may also improve the strength of the final nonwoven fabric. In particular, it is preferable to use, as the binder resin, an ethylene vinyl acetate (EVA) resin and a polyvinyl alcohol (PVA) resin mixed in a ratio of 1:1 to 1:4. By mixing EVA and PVA in a specific range, the material can be easily coated without gelling.

[0059] The binder resin and the powdery material may be mixed in a ratio of 1 part by mass to 200 parts by mass, particularly 10 parts by mass to 100 parts by mass of the powdery material per 100 parts by mass of the binder resin. When the two are mixed in this ratio, the powdery material can be fixed to the nonwoven fabric via the binder resin.

[0060] The binder resin and the powdery material may be diluted with a suitable solvent and applied to the surface of the nonwoven fabric, and the solvent may be evaporated by drying to fix the powdery material with the binder resin. The solvent is selected according to the type of resin, and may be, for example, water, an organic solvent, or the like. As another method, a binder resin may be applied to the surface of the nonwoven fabric, and then a powdery material may be sprinkled on the surface of the nonwoven fabric, followed by drying or other treatment to fix the binder resin. As another method, the fibers constituting the nonwoven fabric may be in a molten state and then powdered, for example, sprinkled on the surface of the nonwoven fabric, and then cooled to adhere.

[0061] (Application of coating liquid) The coating liquid is applied to one surface of a precursor sheet such as a nonwoven fabric, or the precursor sheet is impregnated with the coating liquid. The amount of coating may be selected according to the basis weight of the desired intercalation sheet and the type of fiber interior product such as a carpet to be intercalated. The amount of coating liquid is selected according to the basis weight of the intercalation sheet to be obtained and the type of fiber interior product such as a carpet to be intercalated. 2 ~50g / m 2 For example, for a precursor sheet having a thickness of 3 g / m 2 ~70g / m 2 and in particular 5 g / m 2 ~65g / m 2 The basis weight may be 150 g / m 2 ~300g / m 2 For example, for a precursor sheet having a thickness of 1 g / m 2 ~150g / m 2 and in particular 3 g / m 2 ~120g / m 2 It may be.

[0062] If the amount of application is too small, the amount of powdery material carried will also be small, and the desired effect of the powdery material may not be fully exerted. If the amount of application is too large, the binder resin and / or powdery material may fall off the insert sheet after the solvent is evaporated. The fallen binder resin and / or powdery material may float as dust during processing or use, or may adhere to the rug or processing machine as dirt. In addition, if the amount of application is too large, most of the voids on the surface or inside of the precursor sheet in the obtained insert sheet may be filled with the binder resin and powdery material, and the breathability of the insert sheet may be reduced.

[0063] The coating method of the coating liquid may be any of spraying, dipping, and coater. From the viewpoint of uniformity of the coating amount and efficiency of the coating work, the method using a coater is preferable. Examples of the coater include an impregnation coater, a blade coater, a knife coater, and a gravure coater.

[0064] When the coating is carried out by a spray method or a method using a coater, the coating liquid may be applied to only one surface of a precursor sheet such as a nonwoven fabric, or may be applied to both surfaces. When the nonwoven fabric has a pressure-bonded portion and the coating liquid is applied to only one surface, the coating liquid may be applied to the surface on which the pressure-bonded portion is formed, i.e., the surface on which the pressure-bonded portion is more clearly recognized as a recess (hereinafter also referred to as the "pressed surface"). The pressed surface is the surface that comes into contact with a roll having a convex portion when the pressure-bonded portion is formed by embossing or the like. The pressed surface has a recess, which makes it easier to hold the powdery material in the recess, and therefore, when the obtained nonwoven fabric is processed into a product, the falling off of the powdery material due to surface friction with the processing machine can be suppressed.

[0065] After the coating liquid is applied, the solvent is evaporated using a dryer or by natural drying, and the powdery material is fixed to the precursor sheet by the binder resin to form an insert sheet for fiber interior products. By selecting the viscosity of the coating liquid and the coating method, the binder resin and the powdery material can enter the voids and / or inside of the precursor sheet, and the powdery material can be supported in the voids and / or inside of the precursor sheet. The binder resin and the powdery material may, for example, enter from the surface of the precursor sheet (e.g., nonwoven fabric) to 5% to 100%, particularly 10% to 100% of the thickness of the precursor sheet (e.g., nonwoven fabric). The lower the viscosity of the coating liquid, the easier it is for the powdery material to be supported inside the nonwoven fabric, and when the coating liquid is applied by an impregnation coater or gravure coater method, the powdery material is easier to be supported inside the precursor sheet (e.g., nonwoven fabric).

[0066] The powdery material may or may not be bound with a binder resin, and the amount of the powdery material carried is determined based on the amount of the precursor sheet (nonwoven fabric, etc.) per 1 m 2 The amount may be, for example, 0.1 g to 20 g, and particularly 0.3 g to 10 g per unit. If the amount of powdery material supported is too small, the desired effect of the powdery material may not be obtained, and if the amount supported is too large, the fragrance tends to be too strong.

[0067] After the coating liquid is applied and the solvent is evaporated, the binder resin and the powdery material may be present on the surface of the precursor sheet, such as a nonwoven fabric, with some voids remaining, rather than filling all of the voids (in the case of a nonwoven fabric, the voids are between the fibers). If all of the voids are filled with the binder resin, the breathability of the final inserted sheet is reduced, and the breathability of the fiber interior product itself, for example, the rug itself, into which the sheet is inserted, may also be reduced. In order to leave voids, the amount of coating liquid applied, the contact pressure of the roll, and the clearance of the knife or blade are adjusted.

[0068] The porosity and / or processed area ratio of the sheet may be used as indicators that the material (powdered material) is supported on at least one surface of the sheet and that a portion of the material (powdered material) fills at least a portion of the voids in the sheet. The porosity of the sheet is preferably 5% to 70%. Also, the processed area ratio is preferably 30% to 95%. When these indicators are within the above ranges, a sufficient amount of the powdered material can be attached without impairing the breathability or fragrance of the sheet.

[0069] The void ratio and processed area ratio of the sheet are measured as follows. The sheet surface was captured with a scanning electron microscope (SEM) at a magnification of 40x or 50x. SEM images were then imported into the 2D image measurement software Micro Measure (manufacturer: Scalar Corporation), and the perimeter of the area to be measured (void-filled area, void-formed area, and embossed area if necessary) was specified, and the polygonal area was measured and calculated. From the obtained area, the porosity and the processed area rate were calculated using the following formulas. (porosity) Porosity (%) = {porosity forming area (mm 2 ) / total area (mm 2 )}×100 (In the above, the "void-forming portion" corresponds to the portion where voids are confirmed.) (Processing area ratio) If the sheet has an embossed part Machining area ratio (%)=[{Total area (mm 2 )-Embossed area (mm 2 )-Gap forming area (mm 2 )} / total area (mm 2 )] x 100 If the sheet does not have an embossed portion Machining area ratio (%) = {void filling partial area (mm 2 ) / total area (mm 2 )}×100 (In the above, the "void-filled portion" refers to a portion other than the "void-forming portion" (i.e., the void), in which the void is filled with a binder resin or the like.)

[0070] (Textile interior product using the insert sheet of this embodiment) The interior product insert sheet of this embodiment is used by being inserted into a textile interior product. Examples of textile interior products include rugs, curtains, fabric blinds, tapestries, partitions, wallpaper, and fabric sofas and chairs. Here, the textile interior product refers to an interior product that uses at least a portion of woven fabric, knitted fabric, paper, nonwoven fabric, etc. Products that are not made of fibers but are at least partially made of a material (for example, a porous sheet such as a foam sheet) that has breathability and provides voids communicating with the insert sheet and can perform the function of the insert sheet of this embodiment are also included in the "textile interior product".

[0071] Since the textile interior product provides a gap communicating with the insert sheet, it is easy to more effectively utilize the functions (e.g., deodorizing function, fragrance function) of the insert sheet of this embodiment. When the insert sheet of this embodiment is used for a curtain, a fabric blind, or a tapestry, the insert sheet of this embodiment may be placed between two pieces of fabric. When the insert sheet of this embodiment is used for a partition or wallpaper, the insert sheet of this embodiment may be placed between the surface layer (cover) and the back layer (backing paper).

[0072] (A rug using the insert sheet of this embodiment) The insert sheet of this embodiment may be used by being inserted into a floor covering. The floor covering may be, for example, a tatami mat, a carpet, a rug, or a center rug. When the insert sheet of this embodiment is used for a tatami mat, the insert sheet of this embodiment may be placed between the tatami surface and the tatami floor. The insert sheet used for a floor covering may be a precursor sheet of a fiber sheet, and in particular, the precursor sheet may be a woven fabric such as a nonwoven fabric or a hessian cloth. When the insert sheet of this embodiment is used for a carpet, the insert sheet of this embodiment may be used as an inner layer of a base fabric that is attached to the back surface of the base fabric on which the pile is formed by latex or the like. Alternatively, the insert sheet of this embodiment may be laminated on a base fabric for forming the pile, and the pile may be inserted into the carpet by forming the laminate of the base fabric and the insert sheet of this embodiment. In this case, the insert sheet of this embodiment may be placed on the back surface (the surface opposite to the surface on which the pile is formed). Alternatively, the insert sheet of this embodiment may be inserted into a padded center rug together with the padding.

[0073] In either configuration of the carpet, it is preferable that the insert sheet of the present embodiment is not exposed on the front or back surface of the carpet, because if the insert sheet of the present embodiment is exposed, the powdery material is likely to fall off due to friction, etc. In the case where the thickness of the insertion sheet of this embodiment is so large that even if the powder material carried on or near one surface falls off, it is difficult for it to reach the other surface, the other surface may be exposed and used, and such a form of use also corresponds to the "insertion" of the insertion sheet.

[0074] Alternatively, the insert sheet of this embodiment may be placed only in a part of the rug, for example, only in the center of the rug. If the rug is stepped on at a specific position, the insert sheet of this embodiment may function more effectively by placing the insert sheet in the part corresponding to that position. Similarly, even if the insert sheet is inserted into another textile interior product, it may be placed in a part of the textile interior product. EXAMPLES

[0075] The present embodiment will now be described with reference to examples. [Production of materials from wood and / or leaves of trees from which essential oils and at least a portion of water have been removed] A material (powder-like substance) from which at least a portion of the essential oil and water had been removed was produced from the wood and / or leaves of the tree by the following procedure. (1) 90 kg of Abies sachalinensis branches with leaves attached were crushed using a crushing mill (manufactured by KYB Manufacturing Co., Ltd.) to obtain a collection of small pieces each measuring about 10 to 20 mm, and the collection was then placed in the distillation tank of a microwave distillation apparatus. Next, the pressure inside the distillation tank was kept at a reduced pressure of about 15 kPa, and microwaves were irradiated for about 1 hour. The generated steam (oil, water) was removed from the distillation tank by sucking with a vacuum pump, and a treated Abies sachalinen product was obtained as a residue. The amount of treated Abies sachalinen product obtained was 68 kg. (2) The resulting Todomatsu processed material (residue) was subjected to a pulverization process using a jet mill with high-speed airflow to obtain a powdered material (hereinafter simply referred to as powdered material) from which at least a portion of the essential oil and water in the residue had been removed. The powdered material had an average particle size of 8 μm and a maximum particle size of 32 μm. When the powdered material was observed under an optical microscope, it was confirmed that it contained green or blue parts, indicating that it contained materials derived from the leaves.

[0076] [Production of Interpolation Sheet 1 (thermally bonded nonwoven fabric carrying powder)] [Example 1] (1) Manufacturing of heat-bonded nonwoven fabrics As the thermally adhesive composite fiber, we prepared a core-sheath type composite short fiber (fineness: 2.2 dtex, fiber length: 51 mm) with a concentric structure in which the core component was polyethylene terephthalate (PET: melting point 256°C) and the sheath component was high-density polyethylene (HPDE: melting point 130°C), with the core component and sheath component arranged concentrically. Next, the above heat-adhesive composite fiber was used and carded in a roller-type carding machine to a basis weight of about 20 g / m 2 The resulting fiber web was subjected to a heat treatment for 10 seconds using a hot air blower set at 135° C. to melt the sheath component, thereby obtaining a thermally bonded nonwoven fabric.

[0077] (2) Manufacturing of powder-supported heat-bonded nonwoven fabric First, a coating liquid to be applied to the nonwoven fabric is prepared. The powdery material was uniformly mixed with a water-soluble polymer binder (urethane resin binder (solid content 50%)) in an amount of 12 to 13 parts by mass per 100 parts by mass of the binder to prepare a coating liquid. Next, the coating solution was applied to the thermally bonded nonwoven fabric at a rate of about 40 g / m using a gravure coater. 2 In the resulting nonwoven fabric, the binder / powder mixture was applied in an amount of about 10-15 g / m 2 The amount of powder is about 2-5g / m 2 It was.

[0078] [Example 2] The thermally bonded nonwoven fabric of Example 1 was subjected to an embossing roll (embossing area: 0.79 mm 2 The hot embossing process was carried out using a metal roll with a smooth surface (embossed area ratio: 19.7%) with the surface temperature of both rolls at 125°C and the linear pressure between the rolls at 500 N / cm, to obtain a hot embossed nonwoven fabric in which the areas where the embossed surface contacted were the bonded areas. The powdery material was applied to the compression surface of the heat-embossed nonwoven fabric in the same manner as in Example 1. In the resulting nonwoven fabric, the binder / powdered material mixture was about 10-15 g / m 2 The amount of powder is about 2-5g / m 2 The amount was.

[0079] The mechanical properties and the like of Examples 1 and 2 are shown in Tables 1 and 2.

[0080] [Table 1]

[0081] [Table 2]

[0082] The mechanical properties of the nonwoven fabrics obtained in Examples 1 and 2 were measured by the following procedures. Thickness The thickness of the nonwoven fabric was measured using a thickness gauge (manufactured by Daiei Scientific Instruments Co., Ltd. under the trade name THICKNESS GAUGE, model CR-60A) according to JIS-L-1913. 2 The measurements were taken with a load of 2.94 cN applied around the center. [Density / specific volume] The density of the nonwoven fabric was calculated by dividing the basis weight (based on JIS L 1913 mass per unit area) of the nonwoven fabric by the thickness. The specific volume was calculated as the reciprocal of the density.

[0083] [Nonwoven fabric tensile strength, elongation, and strength at 10% and 20% elongation (modulus)] According to JIS L 1913, a constant-speed tension tester was used to perform a tensile test under the conditions of a sample width of 5 cm, grip interval of 10 cm, and a tensile speed of 30±2 cm / min, and the load value at break was measured and recorded as the tensile strength. The tensile test was performed with the nonwoven fabric's machine direction as the MD direction and its cross direction (direction perpendicular to the machine direction) as the CD direction, with the tensile directions being the machine direction. The evaluation results are shown as the average of the values ​​measured for three samples.

[0084] [Sheet porosity, processed area ratio] The void ratio and processed area ratio of the sheet were determined by taking a scanning electron microscope (SEM) image of the sheet surface at 40x or 50x magnification, importing the SEM image into 2D image measurement software Micro Measure (manufacturer: Scalar Corporation), specifying the perimeter of the area to be measured (void-filled area, void-formed area in the void-filled area, and embossed area if necessary), and measuring and calculating the polygonal area. From the obtained area, the porosity and the processed area rate were calculated using the following formulas. (porosity) Porosity (%) = {porosity forming area (mm 2 ) / total area (mm 2 )}×100 (Processing area ratio) If the sheet has an embossed part Machining area ratio (%)=[{Total area (mm 2 )-Embossed area (mm 2 )-Gap forming area (mm 2 )} / total area (mm 2 )] x 100 If the sheet does not have an embossed portion Machining area ratio (%) = {void filling partial area (mm 2 ) / total area (mm 2 )}×100

[0085] The deodorizing performance of the obtained nonwoven fabric was evaluated by the following procedure. The evaluation results are shown in Tables 3-1, 3-2, and 4.

[0086] (Deodorizing performance) The deodorizing performance of the obtained nonwoven fabric was evaluated using a detector tube in a 10-liter Tedlar bag. The nonwoven fabric was cut into rectangular samples of 20 cm x 40 cm (n=2), and evaluated using ammonia and formaldehyde. The deodorizing performance was confirmed by the change in the concentration of ammonia and aldehyde over time.

[0087] (Sensory deodorizing performance) In order to evaluate the fragrance performance of the obtained nonwoven fabric, ammonia was used to evaluate it according to a 6-level odor intensity rating method. Only ammonia was enclosed in a 10-liter Tedlar bag, and the odor intensity was judged, and the odor intensity when the obtained nonwoven fabric (Example 2) was mixed was compared. The odor intensity was calculated as the average value of 10 evaluators.

[0088] (Aromatic performance) In order to evaluate the fragrance performance of the obtained nonwoven fabric, preference and fragrance intensity were evaluated using a 6-stage odor intensity rating method. Only nonwoven fabric not carrying a powdery material (heat embossed nonwoven fabric) (control) was enclosed in a 10-liter Tedlar bag, and preference and intensity were judged. The obtained nonwoven fabric (Example 2) was also evaluated in the same manner, and the results were compared. Preference and intensity were calculated as the average of 10 evaluators. The results are shown in Table 5.

[0089] [Table 3-1]

[0090] [Table 3-2]

[0091] [Table 4]

[0092] [Table 5]

[0093] Furthermore, the surface and cross section of the obtained nonwoven fabric (Example 2) were observed with a scanning electron microscope (SEM). SEM images are shown in Figures 1 to 3. As shown in these figures, the powdery material fixed with the binder resin was supported on the surface of the nonwoven fabric, and the powdery material was also supported inside the nonwoven fabric. On the surface of the nonwoven fabric, interfiber voids filled with the binder resin and the powdery material, and interfiber voids not filled were observed. Observation of the SEM image (magnification: 50 times) of the surface of Example 2 revealed that the porosity was 10.6%, and the processed area ratio by the binder resin was 84.1% (embossed area ratio was 5.3%).

[0094] When the obtained nonwoven fabrics (Example 1 and Example 2) were inserted under the surface of the tatami mat to make tatami mats, the scent emanating from the powdery material was confirmed from the surface of the tatami mats. Similarly, when the obtained nonwoven fabrics were inserted under the surface layer of the carpet fibers to make carpets, the scent emanating from the powdery material was confirmed from the surface of the carpet.

[0095] The obtained nonwoven fabrics (Example 1 and Example 2) were inserted between the front and backing paper to make wallpaper, and the scent emanating from the powdery material was confirmed from the surface of the wallpaper.

[0096] [Production of Interpolation Sheet 2 (Fabric Carrying Powder-like Material)] [Example 3] (1) Preparation of fabric (Hessian cloth) Hessian cloth (weight 100g / m2) made by weaving slit yarn made from polypropylene resin into a plain weave. 2 ) was prepared.

[0097] (2) Manufacturing of powder-supported fabrics First, prepare the coating solution to be applied to the Hessian cloth. The powdery material was uniformly mixed with a water-soluble polymer binder (urethane resin binder (solid content 50%)) in an amount of 10 parts by mass per 100 parts by mass of the binder to prepare a coating liquid. Next, the coating solution was applied to the Hessian cloth at a rate of about 45 g / m using a gravure coater. 2 In the resulting nonwoven fabric, the binder / powder mixture was applied in an amount of about 20-30 g / m 2 The amount of powder is about 3 to 5 g / m 2 It was.

[0098] When a carpet was produced by inserting the obtained sheet (Example 3) under the surface layer of the carpet fibers, the scent emanating from the powdery material was confirmed from the surface of the carpet.

[0099] [Production of Interpolation Sheet 3 (Needle-punched Nonwoven Fabric Carrying Powdery Material)] [Example 4] (1) Preparation of needle punched nonwoven fabric Needle-punched nonwoven fabric (200 g / m2) made of 100% polyethylene terephthalate (PET) fiber. 2 ) was prepared.

[0100] (2) Manufacturing of powder-loaded needle-punched nonwoven fabric First, a coating liquid to be applied to the needle-punched nonwoven fabric is prepared. A water-soluble polymer binder (ethylene vinyl acetate (EVA) resin (solid content 50%) and polyvinyl alcohol (PVA) resin (solid content 30%) mixed in a ratio of 1:2) was added to 100 parts by weight of the binder. 10 The components were mixed uniformly so as to obtain a coating liquid having a content of parts by mass. Next, the coating solution was applied to the needle-punched nonwoven fabric at a rate of about 70 g / m using a gravure coater. 2 In the resulting nonwoven fabric, the binder / powder mixture was applied in an amount of about 35-45 g / m 2 The amount of powder is about 6g~8g / m 2 It was. When the SEM image (magnification: 40 times) of the surface of Example 4 was observed, the porosity was 53.2%, and the processed area rate by the binder resin was 46.8%.

[0101] The mechanical properties and the like of Example 4 are shown in Table 6.

[0102] [Table 6]

[0103] When a carpet was produced by inserting the obtained sheet (Example 4) under the surface layer of the carpet fibers, the scent emanating from the powdery material was confirmed from the surface of the carpet.

[0104] The present embodiment includes the following aspects. (Aspect 1) An insert sheet for a fiber interior product, comprising a sheet and a material obtained by removing at least a part of essential oils and moisture from wood and / or leaves of a tree, the material is supported on at least one surface of the sheet, and a portion of the material penetrates into the sheet in a thickness direction of the sheet and / or fills at least a portion of voids in the sheet; The material is a powder having an average particle size of 1 μm to 2000 μm. Insertion sheet for textile interior products. (Aspect 2) The insert sheet for fiber interior products has a strength of 2.94 cN / cm 2 0.050g / cm under load 3 ~0.800g / cm 3 The fiber interior product insert sheet of embodiment 1, having a density of (Aspect 3) The insert sheet for a fiber interior product according to embodiment 1 or 2, wherein the sheet comprises at least one selected from the group consisting of nonwoven fabric, paper, woven fabric, knitted fabric, foam, and porous film. (Aspect 4) The sheet is 1 cm 3 / cm 2 / sec~600cm 3 / cm 2 4. An insert sheet for a fiber interior product according to any one of embodiments 1 to 3, having an air permeability of 100 / s. (Aspect 5) 5. The insert sheet for a fiber interior product according to any one of Aspects 1 to 4, wherein the material is in the form of a powder having an average particle size of 1 μm to 150 μm. (Aspect 6) The sheet is a nonwoven fabric in which fibers are at least partially bonded to each other and integrated. An insert sheet for a fiber interior product according to any one of embodiments 1 to 5. (Aspect 7) The insert sheet for a fiber interior product according to embodiment 6, wherein the nonwoven fabric has a compression-bonded portion. (Aspect 8) The nonwoven fabric has a density of 10 to 300 g / m 2 The interior insert sheet according to embodiment 6 or 7, having a basis weight of (Aspect 9) 9. The insert sheet for a textile interior product according to any one of embodiments 1 to 8, wherein the material is fixed to at least one surface of the sheet by a binder resin. (Aspect 10) 10. The insert sheet for fiber interior products according to aspect 9, wherein the binder resin is at least one selected from the group consisting of acrylic resins, urethane resins, ethylene vinyl acetate (EVA) resins, and polyvinyl alcohol (PVA) resins. (Aspect 11) 11. The insert sheet for a fiber interior product according to aspect 9 or 10, wherein the material is contained in an amount of 1 to 200 parts by mass per 100 parts by mass of the binder resin. (Aspect 12) 12. The insert sheet for a textile interior product according to any one of embodiments 1 to 11, wherein voids not filled with the material and / or the binder resin are present on the surface of the sheet on which the material is supported. (Aspect 13) 13. The insert sheet for a fiber interior product according to any one of Aspects 1 to 12, wherein the material is derived from at least tree leaves. (Aspect 14) 14. The insert sheet for a textile interior product according to any one of Aspects 1 to 13, wherein the material has a deodorizing and / or aromatic function. (Aspect 15) The insert sheet for a textile interior product according to any one of embodiments 1 to 14, wherein the tree is at least one species selected from the group consisting of genus Chamaecyparis obtusifolia (Cupressaceae), genus Arborescens (Cupressaceae), genus Juniperus (Cupressaceae), genus Cedar (Cupressaceae), genus Abies (Pinaceae), genus Cedrus (Pinaceae), genus Picea (Pinaceae), genus Larix (Pinaceae), genus Tsuga (Pinaceae), genus Eucalyptus (Myrtaceae), genus Sciadopitys umbellata (Bulgarian alder), genus Kaya (Taxaceae), and genus Thujopsis (Cupressaceae), (Aspect 16) 16. An insert sheet for a fiber interior product according to any one of embodiments 1 to 15, which is an insert sheet for a carpet. (Aspect 17) A method for producing an insert sheet for a textile interior product, comprising the steps of: Preparing a powdery material having an average particle size of 1 μm to 150 μm, the powdery material being made from wood and / or leaves of a tree from which essential oils and at least a portion of water have been removed; The powdery material is supported on at least the surface of a sheet, and a part of the powdery material penetrates in the thickness direction of the sheet and / or fills at least a part of voids in the sheet. A method for producing an insert sheet for a textile interior product, comprising the steps of: (Aspect 18) The sheet is 5 cm 3 / cm 2 / sec~800cm 3 / cm 2 18. A method for producing an insert sheet for a fiber interior product according to claim 17, having an air permeability of 1 / sec. (Aspect 19) A textile interior product comprising the insert sheet for textile interior products according to any one of aspects 1 to 16. (Aspect 20) A carpet comprising the insert sheet for a textile interior product according to any one of aspects 1 to 16. (Aspect 21) 21. The rug of embodiment 20, wherein the rug is a tatami mat or a carpet.

[0105] The present embodiment further includes the following aspects. (Aspect a) A nonwoven fabric having a material, obtained by removing at least a part of essential oil and water from wood and / or leaves of a tree, carried on at least one surface thereof, The material is in a powder form with an average particle size of 1 μm to 150 μm, The nonwoven fabric has fibers at least partially bonded to each other to form an integrated structure. Nonwoven fabric insert for rugs. (Aspect b) The nonwoven fabric for carpet inserts of embodiment a, wherein the nonwoven fabric has a crimped portion. (Aspect c) The nonwoven fabric has a density of 10 to 300 g / m 2 The nonwoven rug insert of embodiment a or b, having a basis weight of (Aspect d) The carpet insert nonwoven fabric of any one of aspects a to c, wherein the material is fixed to at least one surface of the nonwoven fabric by a binder resin. (Embodiment e) The nonwoven fabric for carpet inserts of embodiment d, wherein the binder resin is at least one selected from the group consisting of acrylic resins, urethane resins, ethylene vinyl acetate (EVA) resins, and polyvinyl alcohol (PVA) resins. (Function f) The nonwoven fabric for carpet inserts according to any one of aspects a to e, wherein the material is contained in an amount of 1 to 200 parts by weight per 100 parts by weight of the binder resin. (Aspect g) The nonwoven fabric for carpet inserts according to any one of aspects d to f, wherein on the surface of the nonwoven fabric on which the material is supported, there are inter-fiber voids that are not filled with the material and the binder resin. (Aspect h) The nonwoven carpet insert of any one of Aspects a to g, wherein the material is derived from at least a leaf of a tree. (Aspect i) The nonwoven fabric for rug inserts according to any one of aspects a to h, wherein the material has a deodorizing and / or aromatic function. (Aspect j) The nonwoven fabric for rug inserts according to any one of embodiments a to i, wherein the tree is at least one species selected from the group consisting of genus Chamaecyparis obtusifolia (Cupressaceae), genus Arborescens (Cupressaceae), genus Juniperus (Cupressaceae), genus Cedar (Cupressaceae), genus Abies (Pinaceae), genus Cedrus (Pinaceae), genus Picea (Pinaceae), genus Larix (Pinaceae), genus Tsuga (Pinaceae), genus Eucalyptus (Myrtaceae), genus Sciadopitys (Bulgaria spp.), genus Kaya (Tsuga spp.) (Yewaceae), and genus Thuja (Thymus vulgaris) (Cupressaceae). (Aspect k) A rug comprising the rug insert nonwoven fabric of any one of aspects a to j. (Aspect l) The rug of embodiment k, wherein the rug is a tatami mat or a carpet. [Industrial Applicability]

[0106] The insert sheet for textile interior products such as the nonwoven fabric insert for rugs of the present disclosure has a material, which has been removed from the wood and / or leaves of trees and has at least a portion of the essential oils and moisture removed, carried on at least one surface, and which exhibits deodorizing functions, etc. for a long period of time, making it possible to provide textile interior products such as rugs that exhibit deodorizing effects, etc. for a long period of time.

Claims

1. An insert sheet for a fiber interior product, comprising a fiber sheet and a material having a deodorizing function and a fragrance function, the material being obtained by removing at least a part of essential oils and moisture from woody parts and / or leaves of a tree, the material is supported on at least one surface of the fiber sheet together with a binder resin and exposed on the fiber sheet surface, further, a portion of the material and the binder resin penetrates into inter-fiber voids in the fiber sheet in the thickness direction of the fiber sheet, or a portion of the material and the binder resin fills at least a portion of the inter-fiber voids in the fiber sheet, or a portion of the material and the binder resin penetrates into inter-fiber voids in the fiber sheet in the thickness direction of the fiber sheet and a portion of the material and the binder resin fills at least a portion of the inter-fiber voids in the fiber sheet, The material is in the form of a powder having an average particle size of 1 μm to 2000 μm; The processed area rate is 30% to 95%. Insertion sheet for textile interior products.

2. An insert sheet for a fiber interior product, comprising a fiber sheet and a material obtained by removing a part of essential oil and a part of water from wood and / or leaves of a tree, the material is supported on at least one surface of the fiber sheet together with a binder resin and exposed on the fiber sheet surface, further, a portion of the material and the binder resin penetrates into inter-fiber voids in the fiber sheet in the thickness direction of the fiber sheet, or a portion of the material and the binder resin fills at least a portion of the inter-fiber voids in the fiber sheet, or a portion of the material and the binder resin penetrates into inter-fiber voids in the fiber sheet in the thickness direction of the fiber sheet and a portion of the material and the binder resin fills at least a portion of the inter-fiber voids in the fiber sheet, The material is in the form of a powder having an average particle size of 1 μm to 2000 μm; The processed area rate is 30% to 95%. Insertion sheet for textile interior products.

3. The fiber interior product insert sheet has a strength of 2.94 cN / cm ２ 0.050g / cm under load ３ ~0.800g / cm ３ 3. The insert sheet for textile interior products according to claim 1 or 2, having a density of:

4. The insert sheet for a fiber interior product according to any one of claims 1 to 3, wherein the fiber sheet comprises at least one selected from the group consisting of nonwoven fabric, paper, woven fabric, and knitted fabric.

5. An insert sheet for a textile interior product as described in claim 4, wherein the nonwoven fabric is an adhesive nonwoven fabric in which fibers are bonded to each other by melting or softening some of the fibers of a carded web and / or an air-laid web, a spunbond nonwoven fabric, a meltblown nonwoven fabric, a needle-punched nonwoven fabric, or a hydroentangled nonwoven fabric.

6. The nonwoven fabric is a nonwoven fabric in which at least some of the fibers are bonded to each other and integrated. The insert sheet for textile interior products according to claim 4.

7. The nonwoven fabric has a density of 10 to 300 g / m ２ The insert sheet for fiber interior products according to any one of claims 4 to 6, having a basis weight of

8. The fiber sheet is 1 cm ３ / cm ２ / sec ~ 600cm ３ / cm ２ 8. The insert sheet for fiber interior products according to claim 1, having an air permeability of 100 / s.

9. An insert sheet for a fiber interior product as described in any one of claims 1 to 8, wherein the fiber sheet is made of synthetic fiber.

10. The insert sheet for textile interior products according to any one of claims 1 to 9, wherein the material is in the form of a powder having an average particle size of 1 µm to 150 µm.

11. The insert sheet for a fiber interior product according to any one of claims 1 to 10, wherein the fiber sheet has a pressure-bonded portion.

12. The binder resin is at least one selected from acrylic resins, urethane resins, ethylene vinyl acetate (EVA) resins, and polyvinyl alcohol (PVA) resins. The fiber interior product insert sheet according to any one of claims 1 to 11.

13. The insert sheet for textile interior products according to any one of claims 1 to 12, wherein the material is contained in an amount of 1 to 200 parts by mass per 100 parts by mass of the binder resin.

14. An insert sheet for fiber interior products according to any one of claims 1 to 13, wherein voids not filled with the material and / or the binder resin are present on the surface of the fiber sheet on which the material is supported.

15. The insert sheet for textile interior products according to any one of claims 1 to 14, wherein the material is at least derived from tree leaves.

16. The insert sheet for textile interior products according to claim 2 or any one of claims 3 to 15 which cites claim 2, wherein the material has a deodorizing and aromatic function.

17. The tree is at least one selected from the group consisting of genus Chamaecyparis obtusifolia, genus Arborescens of the Cupressaceae family, genus Juniperus of the Cupressaceae family, genus Cedar of the Cupressaceae family, genus Abies of the Pinaceae family, genus Cedar of the Pinaceae family, genus Picea of ​​the Pinaceae family, genus Picea of ​​the Pinaceae family, genus Larix of the Pinaceae family, genus Tsuga of the Pinaceae family, genus Eucalyptus of the Myrtaceae family, genus Sciadopitys of the Veronica genus, genus Kaya of the Taxaceae family, and genus Thujopsis of the Cupressaceae family. The insert sheet for textile interior products according to any one of claims 1 to 16.

18. The insert sheet for a textile interior product according to any one of claims 1 to 17, which is an insert sheet for a carpet.

19. A method for producing an insert sheet for a textile interior product, comprising the steps of: Preparing a powdery material having an average particle size of 1 μm to 150 μm, the powdery material being made of a material having a deodorizing function and an aromatic function, from the woody part and / or leaves of a tree, from which at least a part of essential oil and water has been removed; The powdery material is supported on at least the surface of a fiber sheet together with a binder resin, so that the powdery material is exposed on the surface of the fiber sheet, and at the same time, A processed area ratio is set to 30% to 95% by allowing a portion of the powdery material and the binder resin to penetrate into interfiber voids in the thickness direction of the fiber sheet, or by filling at least a portion of the interfiber voids of the fiber sheet with a portion of the powdery material and the binder resin, or by allowing a portion of the powdery material and the binder resin to penetrate into interfiber voids in the thickness direction of the fiber sheet and filling at least a portion of the interfiber voids of the fiber sheet with a portion of the powdery material and the binder resin. Including, A manufacturing method for insert sheets for textile interior products.

20. A method for producing an insert sheet for a textile interior product, comprising the steps of: Preparing a powdery material having an average particle size of 1 μm to 150 μm, the powdery material being made from wood and / or leaves of a tree from which a part of essential oil and water have been removed; The powdery material is supported on at least the surface of a fiber sheet together with a binder resin, so that the powdery material is exposed on the surface of the fiber sheet, and at the same time, A processed area ratio is set to 30% to 95% by allowing a portion of the powdery material and the binder resin to penetrate into interfiber voids in the thickness direction of the fiber sheet, or by filling at least a portion of the interfiber voids of the fiber sheet with a portion of the powdery material and the binder resin, or by allowing a portion of the powdery material and the binder resin to penetrate into interfiber voids in the thickness direction of the fiber sheet and filling at least a portion of the interfiber voids of the fiber sheet with a portion of the powdery material and the binder resin. Including, A manufacturing method for insert sheets for textile interior products.

21. The fiber sheet is 5 cm ３ / cm ２ / sec ~ 800cm ３ / cm ２ 21. The method for producing an insert sheet for a fiber interior product according to claim 19 or 20, wherein the sheet has an air permeability of 100 / sec.

22. The method for manufacturing an insert sheet for a fiber interior product according to any one of claims 19 to 21, wherein the fiber sheet has a pressed portion, and the powdery material is supported on a surface of the fiber sheet having the pressed portion.

23. A textile interior product comprising the insert sheet for textile interior products according to any one of claims 1 to 18.

24. A carpet comprising the insert sheet for a textile interior product according to any one of claims 1 to 18.

25. 25. The rug of claim 24, wherein the rug is a tatami mat or a carpet.

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