Lacquered cloth and paper

Abstract

To provide a novel lacquered cloth and lacquered paper maintaining flexibility or plasticity, or a product containing the same.SOLUTION: As the present invention, for example, a lacquered cloth or lacquered paper obtained by applying lacquer to a surface of cloth or paper, wherein a layer of the cloth or paper and a layer of lacquer are laminated via a layer of wax, paraffin, or silicone. Lacquered cloth or lacquered paper according to the present invention can be mentioned. Lacquered cloth or lacquered paper according to the present invention and products containing the same are useful for protecting the product itself or its contents, such as official documents, photographs, works of art, electrical appliances, and the like.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the technical field of lacquer materials, and to cloth and paper coated with lacquer. [Background technology]

[0002] Lacquer is the sap collected from the lacquer tree (scientific name: Toxicodendron vernicifluum), a deciduous tree of the Anacardiaceae family, and is used as a natural resin paint or adhesive. Once hardened, lacquer becomes resistant to acids, alkalis, alcohol, and oils, and also has anti-rot and insect-repellent properties, making it suitable for use on tableware and furniture. It has also been used on paper such as washi paper for a long time, adding strength and improving its texture. Known methods for applying lacquer to washi paper include brushing, wiping with a cloth soaked in lacquer, and spraying the lacquer directly onto the surface of the paper.

[0003] Furthermore, Patent Document 1 discloses lacquered Japanese paper that clearly displays desired pictures and patterns without compromising the excellent texture of Japanese paper and can be used in a wide range of fields such as decorative materials and wallpaper. Such lacquered Japanese paper is characterized by having a printed surface on the surface of the Japanese paper with the desired picture or pattern printed thereon, and a lacquer layer formed by lacquering the printed surface. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-260259 Summary of the Invention [Problem to be solved by the invention]

[0005] Lacquer has excellent properties such as antiseptic, waterproofing, insect repellency, and antistatic properties. When lacquer, which has such excellent properties, is applied to cloth or paper, the lacquer hardens and the cloth or paper becomes less flexible or plastic. In this case, even if the effects of lacquer are obtained, it may not necessarily be desirable for the cloth or paper. The main object of the present invention is to provide new lacquered cloth and lacquered paper that retain flexibility or plasticity, or products containing the same. [Means for solving the problem]

[0006] After extensive research, the inventors discovered that the above-mentioned problems could be solved by first applying wax, paraffin, etc. to a substrate such as cloth or paper before applying lacquer to the substrate, and then applying lacquer, thereby completing the present invention.

[0007] The present invention includes, for example, the following. [1] Lacquered cloth or lacquered paper made by applying lacquer to the surface of cloth or paper, characterized in that the cloth or paper layer and the lacquer layer are laminated via a layer of wax, paraffin, or silicone. [2] Products containing the lacquered cloth or lacquered paper described in [1] above. [3] The product described in [2] above is a bag, pouch, hat, clothing, gloves, shoes, slippers, wallet, furoshiki (wrapping cloth), holder, card holder, tablecloth, mat, curtain, lace, apron, pencil case, or pen case; or an envelope, postcard, letter paper, short note, card, colored paper, file, binder, notebook, memo pad, diary, book, magazine, newspaper, advertising paper, book cover, wrapping paper, box, calendar, album, photo frame, folding fan, fan, Japanese umbrella, or simple rain gear. [4] Lacquered cloth or paper as described in [1] above, or products as described in [2] or [3] above, for protecting official documents, photographs, artworks, or electrical appliances. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide lacquered cloth or lacquered paper coated with lacquer that has antiseptic, waterproof, insect-repellent, and antistatic effects, as well as products that include the lacquered cloth or lacquered paper. Furthermore, it is possible to protect an object enclosed in the lacquered cloth or lacquered paper according to the present invention from bacteria, mold, insects, water, static electricity, etc. Furthermore, as will be apparent from the test results described below, the lacquered cloth and lacquered paper according to the present invention are resistant to abrasion and bending, and are therefore strong and can withstand long-term use. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a partial cross-sectional view showing the layered structure of lacquer cloth or lacquer paper according to the present invention. The left figure shows a case where a lacquer layer is on one side of the cloth or paper, and the right figure shows a case where a lacquer layer is on both sides of the cloth or paper. [Figure 2] These are photographs showing the results of a bending test. The left photograph (a) shows the surface condition of the test piece after it had been repeatedly bent 60,000 times in the vertical direction, and the right photograph (b) shows the surface condition of the test piece after it had been repeatedly bent in the horizontal direction in the same way. DETAILED DESCRIPTION OF THE INVENTION

[0010] The present invention will be described in detail below. 1. Regarding the lacquered cloth or lacquered paper of the present invention The lacquered cloth or lacquered paper of the present invention (hereinafter referred to as "lacquered cloth paper of the present invention"; the lacquered cloth of the present invention will also be called "lacquered cloth of the present invention", and the lacquered paper of the present invention will also be called "lacquered paper of the present invention") is lacquered cloth or lacquered paper in which lacquer is applied to the surface of cloth or paper, and is characterized in that the layer of cloth or paper and the layer of lacquer are laminated via a layer of wax, paraffin, or silicone (hereinafter these will also be called "intermediate material").

[0011] The "lacquer" used in the lacquer cloth and paper of the present invention is not particularly limited as long as it is sap or natural resin extracted from lacquer trees, containing urushiol, laccol, thitsiol, and other components as its main components, and is used as a paint or adhesive for tableware, furniture, tools, musical instruments, etc. Among these, lacquer containing urushiol as its main component is preferred. Furthermore, the lacquer may be raw lacquer, refined lacquer (transparent lacquer), black lacquer, colored lacquer, or lacquer containing added oil (e.g., natural drying oil, rosin, or pine resin). The lacquer may contain additives such as pigments or colorants, such as iron oxide, red ocher, oryza, indigo, or titanium oxide. Furthermore, the lacquer may be lac, which is made from lac scale insects.

[0012] The "fabric" of the present invention is not limited to woven fabrics, but is also not particularly limited as long as it is fibrous. Examples include: vegetable fibers such as linen, ramie, hemp, and jute; cotton; animal fibers such as silk, wool, alpaca, angora, cashmere, and mohair; regenerated fibers such as rayon, cupra, polynosic, and recycled polyester; semi-synthetic fibers such as acetate, triacetate, and promix; synthetic fibers such as nylon, polyester, acrylic, polyvinyl chloride, and polyurethane; and inorganic fibers such as glass and metal fibers. Examples of such fibers include nonwoven fabrics, felt, knitted fabrics, and lace. Among these, fabrics woven from vegetable fibers such as cotton, linen, and kudzu are preferred, with cotton and linen fabrics being even more preferred. The term "fabric" also includes "yarn" (the raw yarn itself) such as cotton and linen.

[0013] The "paper" in the lacquered paper of the present invention may be either Western paper or Japanese paper. Examples include functional paper and general paper. Examples of Western paper include fine paper, medium-quality paper, coated paper, art paper, coated paper, lightweight coated paper, India paper, colored fine paper, fancy paper, and newsprint. Examples also include printing paper (high-grade, medium-grade, and low-grade), packaging paper (unbleached and bleached), processed base paper, and paperboard such as cardboard. Examples of Japanese paper include paper made from natural plant fibers such as hemp, kozo (paper mulberry), mitsumata (Japanese mulberry), gampi (gampi), mayumi (Japanese mulberry), kujin (bitter melon), butterbur, Manila hemp, and mulberry. Paper may be hand-made or machine-made and wound onto a roll.

[0014] The intermediate material for the lacquered paper of the present invention may be naturally derived, synthetic, or processed or modified. Specifically, natural waxes include animal-derived waxes such as beeswax, spermaceti, shellac wax, privet wax, and wool wax; plant-derived waxes such as carnauba wax, Japan wax, rice bran wax, sugarcane wax, palm wax, candelilla wax, hazel wax, and urushi wax; petroleum-derived waxes such as paraffin wax and microcrystalline wax; and mineral-derived waxes such as montan wax and ozokerite. Synthetic waxes include Fischer-Tropsch wax, polyethylene wax, polypropylene wax, oil-based synthetic waxes, and hydrogenated waxes. Processed or modified waxes include oxidized waxes, blended waxes, and modified montan wax. Of these, animal- and plant-derived waxes and paraffins are preferred, with beeswax, carnauba wax, and paraffin being particularly preferred.

[0015] Products containing the lacquered cloth and paper of the present invention are not particularly limited as long as they are made using cloth or paper, and include daily necessities, household goods, daily necessities, stationery, and office supplies made of or containing cloth or paper. Specific examples of cloth products include bags, pouches, hats, clothing, gloves, shoes, slippers, wallets, wrapping cloths, holders, card holders, tablecloths, mats, curtains, lace, aprons, pencil cases, and pen cases. Examples of paper products include envelopes, postcards, letter paper, short notes, cards, colored paper, files, binders, notebooks, memo pads, diaries, books, magazines, newspapers, advertising paper, book covers, wrapping paper, boxes, calendars, albums, photo frames, folding fans, paper fans, Japanese umbrellas, and simple rain gear.

[0016] The lacquered paper of the present invention and products containing the lacquered paper of the present invention can further have an appropriate resin layer on top of the lacquer layer for the purpose of protecting the lacquer layer, etc. The resin of such a resin layer can be a natural resin or a synthetic resin such as nylon, polyethylene, or polypropylene.

[0017] 2. Method for producing the lacquered paper of the present invention and products containing the lacquered paper of the present invention The lacquered paper of the present invention can be produced, for example, through the following steps. First, prepare the desired cloth material (piece of cloth) or paper material (piece of paper) to which lacquer will be applied. An appropriate amount of intermediate material is applied to one or both sides of the prepared cloth or paper material, on the part to which lacquer will be applied later. This application can be carried out by a conventional method, such as brush application, spray application, electrostatic application, roll application, or silk screen application.

[0018] Next, an appropriate amount of lacquer is applied to the area coated with the intermediate material, and the pieces are layered. This lacquer application can be carried out in the same manner as for the intermediate material described above. Then, by drying the lacquer, a layer of the intermediate material is layered on one or both sides of the cloth or paper, and a layer of lacquer is layered on top of that, to produce the lacquered cloth and paper (piece) of the present invention (see Figure 1).

[0019] Products containing the lacquered paper of the present invention can be produced by first producing pieces of cloth or paper of the lacquered paper of the present invention as described above, and then processing them into the desired product. Alternatively, a product containing the lacquered paper of the present invention can be produced by first preparing the desired product (finished product) to which lacquer is to be applied, applying an appropriate amount of intermediate material to the part of the product to which lacquer will be applied later, and then applying an appropriate amount of lacquer on top of the part that has been applied with the intermediate material, layering it, and drying it.

[0020] If necessary, the lacquer layer may be coated or laminated with an appropriate resin or the like in a conventional manner.

[0021] 3. Characteristics of the lacquered paper of the present invention The lacquered cloth and paper of the present invention retains the flexibility of cloth and paper while also possessing the antiseptic, waterproof, insect-repellent, and anti-static properties of lacquer. Therefore, an object can be wrapped in the lacquered cloth and paper of the present invention, and the object can be protected from bacteria, mold, insects, water, static electricity, etc. Products containing the lacquered fabric and paper of the present invention (for example, bags, envelopes, postcards, etc.) retain their flexibility and functionality while protecting the product and the objects contained therein from bacteria, mold, insects, water, static electricity, etc.

[0022] Therefore, the lacquered paper of the present invention and products containing the lacquered paper of the present invention are suitable for protecting the product itself or its contents, such as official documents, photographs, works of art, and electrical appliances (personal computers, cameras, smartphones, etc.). [Example]

[0023] The present invention will be described below with reference to examples, but the present invention is not limited to these examples in any way.

[0024] [Example 1] Beeswax was applied to both sides of a piece of plain paper approximately 10 cm square with a brush, red lacquer was applied to one side with a brush, and light blue lacquer was applied to the other side with a brush, and the paper was dried to prepare the lacquer paper of the present invention.

[0025] [Example 2] Paraffin was applied to the entire surface of a Western-style No. 6 envelope with a brush, and then red lacquer was applied thereon with a brush and dried to prepare an envelope made of lacquered paper of the present invention.

[0026] [Example 3] Paraffin was applied to both sides of a piece of cotton cloth approximately 30 cm square with a brush, and then red lacquer was applied on top of that with a brush and dried to prepare the lacquered cloth of the present invention.

[0027] [Test Example 1] Various performance tests were conducted on the lacquer cloth of the present invention prepared in Example 3. The test items and test conditions are shown in Table 1.

[0028] [Table 1]

[0029] The test results are shown in Table 2 and Figure 2. Figure 2 shows photographs taken with a digital microscope of the surface condition of the test piece after it had been repeatedly bent 60,000 times in the bending resistance test. The photograph on the left (a) shows the results when bent in the vertical direction, and the photograph on the right (b) shows the results when bent in the horizontal direction.

[0030] [Table 2]

[0031] The lacquered paper of the present invention used in the test was able to withstand over 30,000 abrasions in the abrasion test, and also withstood 60,000 bendings in both the vertical and horizontal directions, remaining almost unchanged from before bending. These test results clearly demonstrate that the lacquered paper of the present invention has excellent water repellency, moisture resistance, and durability. [Industrial Applicability]

[0032] The lacquered paper of the present invention and products containing the lacquered paper of the present invention are useful for protecting the product itself or its contents, such as official documents, photographs, artworks, and electrical appliances. [Explanation of symbols]

[0033] 1. Substrate (cloth or paper) 2 Intermediate materials 3 Lacquer layer

Claims

1. Lacquered cloth or lacquered paper, which is made by applying lacquer to the surface of cloth or paper, characterized in that the cloth or paper layer and the lacquer layer are laminated together via a layer of wax or paraffin (however, lacquered paper in which the lacquer layer and the paper layer are separated is excluded).

2. A product comprising the lacquered cloth or lacquered paper of claim 1.

3. 3. The product according to claim 2, wherein the product is a purse, pouch, hat, clothing, gloves, shoes, slippers, wallet, furoshiki (wrapping cloth), holder, card holder, tablecloth, mat, curtain, lace, apron, pencil case, or pen case; or an envelope, postcard, letter paper, short note, card, colored paper, file, binder, notebook, memo pad, diary, book, magazine, newspaper, advertising paper, book cover, wrapping paper, box, calendar, album, photo frame, folding fan, fan, Japanese umbrella, or simple rain gear.

4. The lacquered cloth or paper according to claim 1 or the product according to claim 2 or 3 for protecting official documents, photographs, artworks, or electrical appliances.

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