Kitchen towel roll product

Abstract

To provide a kitchen roll towel product including a 2-ply kitchen towel roll that is packaged at low cost with an excellent appearance given thereto, the kitchen towel having both water-absorbing and wiping properties at high levels and offering a good use feel.SOLUTION: A kitchen roll towel product 1 is assembled with a kitchen roll towel 2 obtained by winding a sheet-like kitchen towel 11x which is a 2 ply laminate having been given with an embossment pattern in a roll shape and a packaging film 20 for packaging the same; the kitchen towel 11x has a paper machine-derived uneven pattern applied between a head box of a paper machine and a Yankee drier entrance, a basis weight of 30 g / m2 or over and 54 g / m2 or under, a water absorption of 200 g / m2 or over and 600 g / m2 or under, a specific volume of 8 cm3 / g or over and 20 cm3 / g or under; and the kitchen roll towel 2 has a roll density of 0.04 g / cm3 or over and 0.15 g / cm3 or under.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to kitchen towel roll products.

Background Art

[0002] Kitchen towels are widely used, for example, for cleaning cooking appliances such as kitchens, microwave ovens, and stoves, draining and wiping dishes, removing moisture from food ingredients such as raw vegetables, meat, and fish, and draining oil from fried foods. Therefore, sufficient water absorption and oil absorption are required for their uses. For this reason, various bulky papermaking techniques for increasing the water absorption and oil absorption of kitchen towels have been proposed.

[0003] Patent Document 1 discloses a kitchen towel in which a sheet mainly composed of pulp is used as one sheet or two or more sheets are stacked as a set, and the basis weight of one set is 15 g / m 2 or more and 50 g / m 2 or less, the oil absorption / basis weight is 4.5 OIL-g / g or more and 7.5 OIL-g / g or less (Claim 1), and when the length of the measurement field of the portion avoiding embossing in a mechanical process other than the papermaking machine is 1.0 mm or more and 1.4 mm or less, the height difference of the surface unevenness is 100 μm or more and 600 μm or less (Claims 3, paragraphs 0021 to 0022), and the area ratio of the concave portions on the surface under the condition of a scan area of 10 cm × 10 cm is 2% or more and 12% or less (Claim 4, paragraph 0023). Patent Document 1 also discloses a method for manufacturing a kitchen towel in which an uneven fabric is pressed against a wet paper web to perform uneven embossing simultaneously with dehydration and then the wet paper web is dried (Claim 6). According to Patent Document 1, a kitchen towel mainly composed of pulp and having a high oil absorption even with a low basis weight is provided.

[0004] Patent Document 2 discloses a tissue paper manufacturing apparatus for manufacturing high-bulk tissue paper. The apparatus has a pressing portion for pressing and embossing a wet fibrous web, and the pressing portion includes an embossing belt having an embossing layer. The embossing layer is non-woven and has a web conveying side with a surface that cooperates with the fibrous web, and the surface has recesses or raised portions forming a three-dimensional structure (Claim 1). According to Patent Document 2, it is described that high-bulk tissue paper with a bulk of at least 8 cm 3 / g or more and 20 cm 3 / g or less can be provided, which can be manufactured at low energy cost using pressing technology (Paragraph 0013).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] Kitchen towels are generally used in the form of kitchen roll towels wound in a roll. However, when winding a bulky kitchen towel in a roll, there is a problem that the winding is likely to loosen. When packaging a kitchen roll towel with a loose winding, seal defects and scorch (holes due to burning) occur, reducing the cosmetic appearance of the packaging and increasing the defective rate. When tightening the winding of the kitchen towel, the packaging becomes good, but the kitchen towel is crushed and the water absorption decreases, and the advantages of the bulky papermaking technology cannot be obtained.

[0007] On the one hand, it is possible to achieve both the aesthetic appeal of the packaging and the water absorbency of the kitchen towel by excessively increasing the basis weight of the kitchen towel and making it a solid roll. However, there are other problems such as a rise in manufacturing costs and a decrease in the wiping performance due to the hardening of the paper quality of the kitchen towel.

[0008] In addition, kitchen roll towels are packaged in a resin film for packaging and are commercially available as kitchen roll towel products. At this time, various packaging forms are known. Among them, the caramel packaging form is widely used because it improves the aesthetic appeal of the kitchen roll towel product and enables more kitchen roll towel products to be accommodated in one shipping cardboard box without collapsing. However, when using caramel packaging, there is another problem that if the roll of the kitchen towel is soft, the packaging aesthetic appeal will decrease, and if the roll is made hard, the water absorbency of the kitchen towel will decrease.

[0009] An object of the present invention is to provide a kitchen roll towel product in which a roll of 2-ply kitchen towel with high water absorbency and wiping performance and a good touch during use is packaged at low cost with excellent aesthetic appeal.

Means for Solving the Problems

[0010] As a result of intensive research to solve the above problems, the inventors of the present invention have found that a kitchen towel that is softer than conventional ones, with the basis weight, water absorption, and specific volume set within predetermined ranges respectively, is wound into a roll at a predetermined roll density and then caramel-packaged with a resin film for packaging, thus obtaining a kitchen roll towel product that meets the objectives, and the present invention has been completed. That is, the present invention relates to the following kitchen roll towel product.

[0011] (1) A kitchen roll towel product, A kitchen roll towel obtained by winding a sheet-like kitchen towel, which is a 2-ply laminate with an embossed pattern, into a roll, And a packaging film for packaging the kitchen roll towel. The kitchen towel has, an uneven pattern derived from a paper machine applied between the headbox of the paper machine and the Yankee dryer inlet, a basis weight of 30 g / m 2 or more and 54 g / m 2 or less, a water absorption of 200 g / m 2 or more and 600 g / m 2 or less, and a specific volume of 8 cm 3 / g or more and 20 cm 3 / g or less, and the roll density of the kitchen roll towel is 0.04 g / cm 3 or more and 0.15 g / cm 3 or less, a kitchen roll towel product. (2) The kitchen roll towel product according to (1) above, which is a caramel package of one or more of the kitchen roll towels with the packaging film. (3) The kitchen roll towel product according to (1) or (2) above, wherein the ratio of DMDT / DCDT of the kitchen towel is 0.8 or more and 2.0 or less, and DMDT is 4 N / 25 mm or more and 16 N / 25 mm or less, and DCDT is 3 N / 25 mm or more and 13 N / 25 mm or less. (4) The kitchen towel further has a plurality of perforations extending in the width direction thereof for cutting the kitchen towel in the width direction, the plurality of perforations are provided at a predetermined interval in the longitudinal direction, and the area of the kitchen towel piece surrounded by two adjacent perforations in the longitudinal direction is 0.02 m 2 or more and 0.10 m 2 or less, the kitchen roll towel product according to any one of (1) to (3) above. (5) The kitchen towel roll product according to any one of (1) to (4) above, wherein the peel strength is 0.01 N / 75 mm or more and 1.5 N / 75 mm. (6) The kitchen towel roll product according to any one of (1) to (5) above, wherein the roll diameter of one roll of the kitchen roll towel is 113 mm or more and 200 mm or less. (7) The kitchen towel further has an embossing pattern different from the uneven pattern, together with the uneven pattern derived from the paper machine, and the area ratio of the convex portions in the embossing roll for applying the embossing pattern is 4% or more and 40% or less. The kitchen towel roll product according to any one of (1) to (6) above. (8) The kitchen towel roll product according to (7) above, wherein the embossing pattern is a linear embossing pattern. (9) In the linear embossing pattern, the thickness is 0.1 mm or more and 4 mm or less, and the length is 5 mm or more, and the total length when the lengths of the embossings are added is 50 cm / 100 cm 2 or more and 550 cm / 100 cm 2 or less. The kitchen towel roll product according to (8) above. (10) The kitchen towel roll product according to any one of (7) to (9) above, wherein the root mean square height of the surface roughness in the portion of the kitchen towel where the embossing pattern is not applied is 35 μm or more. (11) The kitchen towel roll product according to any one of (1) to (10) above, wherein the packaging film has heat sealability. (12) The kitchen towel roll product according to any one of (1) to (11) above, wherein the thickness of the packaging film is 15 μm or more and 40 μm or less.

Advantages of the Invention

[0012] According to the present invention, there is provided a kitchen roll towel product in which a 2-ply kitchen towel roll that achieves both high water absorption and wiping performance at a high level and has a good touch during use is packaged at low cost with excellent cosmetic properties.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiments for Carrying Out the Invention

[0014] The kitchen roll towel product 1 of the present embodiment will be described below with reference to the drawings. FIGS. 1 and 2 show the kitchen roll towel product (hereinafter also simply referred to as "product") 1 and the kitchen roll towel (hereinafter also simply referred to as "roll") 2, respectively. FIGS. 3 and 7 show, respectively, how to obtain the embossed area of the kitchen towel 11x and the method of measuring the water absorption. FIGS. 4 and 5 show the height profile on the X-Y plane by a microscope. FIG. 6 shows the method of obtaining the depth of an emboss unit with an area of 1 mm 2 or more and 40 mm 2 or less. FIG. 8 shows a part of the papermaking process of the kitchen towel 11x. FIG. 9 shows a linear emboss pattern. FIG. 10 shows the non-embossed part.

[0015] <Kitchen roll towel product> The kitchen roll towel product 1 of this embodiment is a two-ply laminate having an embossed pattern, and has uneven patterns derived from a paper machine applied between the headbox of the paper machine and the Yankee dryer inlet. The basis weight is 30 g / m 2 or more and 54 g / m 2 or less, the water absorption is 200 g / m 2 or more and 600 g / m 2 or less, and the specific volume is 8 cm 3 / g or more and 20 cm 3 / g or less. A sheet-like (or belt-like) kitchen towel 11x is wound around a core 10 such as a paper tube or a plastic tube so that the roll density is 0.04 g / cm 3 or more and 0.15 g / cm 3 or less. The obtained kitchen roll towel 2 is aligned in the longitudinal direction and two are arranged in parallel to form a caramel package with a packaging film 20. The packaging form of the kitchen roll towel product 1 is preferably caramel packaging, but is not limited thereto, and various packaging forms of current commercially available products can also be used. Also, the number of kitchen roll towels 2 to be packaged is not limited to this embodiment, and may be 1 or 3 or more. Further, the embossed pattern of the kitchen towel 11x includes, for example, an embossed pattern of another form described later, together with the uneven pattern (embossed pattern) derived from the paper machine automatically applied between the headbox of the paper machine and the Yankee dryer inlet.

[0016] One caramel package is not limited to this embodiment, and may contain 1 roll 2 or 3 or more rolls 2. When packaging a plurality of rolls 2, from the viewpoint of the beauty of the package, etc., it is preferably 2 or 3. By caramel-packaging the roll 2, seal defects and scorch (holes due to burning) are less likely to occur, and the beauty of the package is significantly improved. Also, since it is caramel packaging, it is excellent in strength and openability.

[0017] According to this embodiment, by adjusting three specific properties, namely, basis weight, water absorption, and specific volume, of a two-ply laminate having an embossed pattern derived from a paper machine to predetermined ranges respectively, a kitchen towel 11x with a soft paper texture not found in the prior art can be obtained while possessing high levels of water absorption, oil absorption, wiping ability, etc. The roll 2 obtained by winding such a kitchen towel 11x at a predetermined roll density is difficult to unwind, and no seal defects or scorch (holes caused by burning) occur even when packaged, and it has high packaging aesthetics. Also, even without tightly winding, it is possible to achieve both high packaging aesthetics and high water absorption of the kitchen towel at low manufacturing costs, and furthermore, high-level packaging aesthetics can be maintained even when caramel-wrapped. Hereinafter, each component of the kitchen roll towel product 1 will be specifically described.

[0018] <Kitchen towel> As described above, the kitchen towel 11x of this embodiment has an uneven pattern derived from a paper machine provided between the headbox of the paper machine and the Yankee dryer inlet and is a two-ply laminate. In the kitchen towel 11x, an adhesive layer may be provided between the plies to prevent ply separation. The adhesive layer may be provided over the entire surface between the plies or may be provided partially. As the adhesive, any known adhesive that does not affect the water absorption or texture of the kitchen towel 11x can be used without particular limitation, and examples include glue. Note that the kitchen towel 11x may or may not have a print. Also, hereinafter, in the roll 2 shown in FIG. 2, the surface facing outward of the roll 2 of the kitchen towel sheet 11x is also referred to as the front surface 11a, and the surface facing the core 10 of the roll 2 is also referred to as the back surface 11b.

[0019] (Basis weight) The kitchen towel 11x of this embodiment has a basis weight of 30 g / m 2 or more and 54 g / m 2 Hereinafter, preferably 34 g / m 2 or more and 50 g / m 2 or less, and more preferably 38 g / m 2 or more and 46 g / m 2 or less. When the basis weight is 30 g / m2 If it is less than this value, the tactile sensation of the kitchen towel 11x during use tends to deteriorate. When the basis weight is 54 g / m 2 exceeds this value, the kitchen towel 11x becomes hard and does not follow the shape of the object, so the wiping property tends to deteriorate. The basis weight is measured according to JIS P 8124.

[0020] (Water absorption capacity) For the kitchen towel 11x, the water absorption capacity is 200 g / m 2 or more and 600 g / m 2 or less, preferably 300 g / m 2 or more and 500 g / m 2 or less, more preferably 350 g / m 2 or more and 450 g / m 2 or less. Here, in the above unit of water absorption capacity, "g" indicates the weight of water absorbed by the kitchen towel 11x, and "m 2 " indicates the area of the kitchen towel 11x that has absorbed water. When the kitchen towel 11x is cut and used as a sheet with a good handling size, if the water absorption capacity is less than 200 g / m 2 , the water wiping property tends to deteriorate. If the water absorption capacity exceeds 600 g / m 2 , the sheet of the above size cannot be effectively used up, and there is still room for water absorption, but it has to be discarded.

[0021] (Method for measuring water absorption capacity) The measurement of the water absorption capacity is carried out, for example, in the order of the following (a) to (c). (a) Take the kitchen towel 11x stacked in 2-ply, cut it using a template with a square of 7.6 cm (3 inches) on one side to produce a test piece in the shape of a rectangle with a side of 7.6 cm. Measure the mass of the test piece before water absorption with an electronic balance. Set the test piece in the holder shown in Fig. 7 (a jig for fixing three points of the test piece, and the jig is made of a metal that does not absorb moisture). (b) Pour 2 cm of distilled water into a commercially available bat, and immerse the test piece set in the holder in the distilled water for 2 minutes. After 2 minutes of immersion, take out the test piece together with the holder from the distilled water, and attach a strip 210 to one corner 200d of the test piece 200 as shown in Fig. 7. The strip 210 is made by cutting the same kitchen towel 11x as the sample to be measured into a size of 2 mm in width and 15 mm in length, and attaching it to a portion 6 mm from the corner 200d of the test piece toward the center. (c) Hang the holder 220 and the test piece 200 on a rod installed in an empty water tank with the corner 200a facing the corner 200d upward, close the lid of the water tank, and leave it for 10 minutes. Then, take out the holder 220 and the test piece 200 from the water tank, remove the strip 210 and the holder 220, and measure the mass of the test piece 200 with an electronic balance. From the mass change of the test piece 200 before and after immersion in distilled water, the water absorption amount of distilled water per 1 m of the test piece 2 (water g / paper m 2 ) is calculated. The measurement is performed 5 times for each sample, and the average value is adopted. Note that this measurement is performed in accordance with JIS P 8111 method under the conditions of temperature 23 ± 1 °C and humidity 50 ± 2%. Also, the distilled water is maintained at 23 ± 1 °C.

[0022] (Specific volume) The kitchen towel 11x of this embodiment has a specific volume of 8 cm 3 / g or more and 20 cm 3 / g or less, preferably 10 cm 3 / g or more and 18 cm 3 / g or less, more preferably 12 cm 3 / g or more and 16 cm 3 / g or less. When the specific volume is less than 8 cm 3 / g, the water absorption tends to decrease, and when the specific volume exceeds 20 cm 3 / g, the strength tends to be low and it is likely to tear. The specific volume is the value obtained by dividing the paper thickness of the kitchen towel (2-ply laminate) 11x by the basis weight, and is shown as the volume cm per unit g 3 . Note that the basis weight, water absorption amount, specific volume, etc. can be adjusted to a predetermined range by appropriately adjusting, for example, the beating conditions of the raw materials, the calendar conditions of the base paper web, the creping conditions, the embossing conditions, etc.

[0023] In a preferred embodiment, in addition to the physical properties described above, the kitchen towel 11x has the following physical properties and / or configurations.

[0024] (DMDT and DCDT) DMDT (Dry Machine Direction Tensile Strength, hereinafter also referred to as "dry longitudinal strength") is the tensile strength in the longitudinal direction during drying of the kitchen towel 11x based on JIS P 8113. From the perspective of wiping performance, etc., for example, it is in the range of 4 N / 25 mm or more and 16 N / 25 mm or less, in the range of 5 N / 25 mm or more and 13 N / 25 mm or less, or in the range of 6 N / 25 mm or more and 10 N / 25 mm or less. If the DMDT is within the above-mentioned range, the soft touch of the kitchen towel 11x is fully exerted, and the wiping performance is improved. Also, DCDT (Dry Cross Direction Tensile Strength, hereinafter also referred to as "dry transverse strength") is the tensile strength in the transverse direction during drying of the kitchen towel 11x based on JIS P 8113. From the perspective of wiping performance, etc., for example, it is in the range of 3 N / 25 mm or more and 13 N / 25 mm or less, in the range of 4 N / 25 mm or more and 13 N / 25 mm or less, or in the range of 5 N / 25 mm or more and 10 N / 25 mm or less. If the DCDT is within the above-mentioned range, the soft touch of the kitchen towel 11x is fully exerted, and the wiping performance is improved. If the DMDT is less than 4 N / 25 mm and / or the DCDT is less than 3 N / 25 mm, the kitchen towel 11x is likely to tear when absorbing water, and the wiping performance tends to decrease. If the DMDT exceeds 16 N / 25 mm and / or the DCDT exceeds 13 N / 25 mm, the kitchen towel 11x tends to become denser, the water absorption decreases, the paper becomes solidified, etc., and the wiping performance tends to decrease. Also, the ratio of DMDT / DCDT is, for example, in the range of 0.8 or more and 2.0 or less, in the range of 0.9 or more and 1.8 or less, or in the range of 1.0 or more and 1.6 or less. By setting the ratio of DMDT / DCDT within the above-mentioned range, the kitchen towel 11x has a soft and comfortable touch. If the ratio of DMDT / DCDT is less than 0.8, the sheet tends to break easily when tearing along the perforations. If the ratio of DMDT / DCDT exceeds 2.0, the usability tends to vary depending on the wiping direction. DMDT and DCDT can be adjusted, for example, by the jet / wire ratio, the forming speed, the raw material discharge angle, etc.

[0025] (Perforations) In a preferred embodiment, the kitchen towel 11x extends in its width direction and further has a plurality of perforations (not shown) that cut the kitchen towel 11x in the width direction. The plurality of perforations are provided at predetermined intervals in the longitudinal direction, and the area of one piece of kitchen towel (hereinafter also referred to as "sheet area") surrounded by two adjacent perforations in the longitudinal direction is 0.02 m 2 or more and 0.10 m 2 or less, in the range of 0.03 m 2 or more and 0.08 m 2 or less, or in the range of 0.04 m 2 or more and 0.06 m 2 or less. This piece of kitchen towel can also be referred to as a sheet cut by two adjacent perforations in the longitudinal direction. It is necessary to set the sheet area not independently but in combination with the characteristics of the kitchen towel 11x, particularly the basis weight, water absorption amount, and specific volume. In this embodiment, by setting the optimal water absorption amount, oil absorption amount, etc. when the sheet area has good wiping property, a highly convenient piece of kitchen towel can be obtained. If the area of the piece of kitchen towel is less than 0.02 m 2 , it tends to be difficult to wipe the object to be wiped, or it may not be possible to sufficiently wipe with one piece of kitchen towel. If the area exceeds 0.10 m 2 , the piece of kitchen towel is often discarded with room for water absorption and oil absorption remaining, and there is a tendency that one piece of kitchen towel cannot be effectively used up.

[0026] (Peel strength) The peel strength of the kitchen towel 11x is, for example, in the range of 0.01 N / 75 mm or more and 1.5 N / 75 mm or less, in the range of 0.03 N / 75 mm or more and 1.3 N / 75 mm or less, or in the range of 0.05 N / 75 mm or more and 1.0 N / 75 mm or less. When the peel strength is within the above-mentioned range, it becomes easier to adjust the roll density to the range specified in this embodiment. If the peel strength is less than 0.01 N / 75 mm, the plies tend to peel off and it becomes difficult to wipe. If the peel strength exceeds 1.5 N / 75 mm, the water absorption amount of the kitchen towel 11x tends to decrease.

[0027] The measurement of the ply peel strength is carried out under the standard conditions specified in JIS P 8111 using a tensile testing machine (STB-1225S, manufactured by A&D Company, Limited) in accordance with the tensile test method of JIS P 8113. First, a test piece with a width of 75 mm in the width direction and 200 mm in the flow direction is taken from a sample of kitchen towel 11x. Next, the ply is peeled 35 mm in the flow direction. One side of the peeled ply is fixed by sandwiching it with the upper gripper (width 75 mm) 15 mm in the flow direction. Also, the other ply is fixed by sandwiching it with the lower gripper (width 75 mm) 15 mm in the flow direction. Note that the pitch (interval) of the grippers is 20 mm. Next, the ply is pulled (peeled) under the condition of a tensile speed of 100 mm / min, and the strength data is collected. The strength data is acquired every 20 μm, and the data from 40 mm to 150 mm (measurement length 110 mm) after the start of measurement is averaged, and this is taken as the peel strength (N / 75 mm). However, if the perforation is included from 40 mm to 150 mm after the start of measurement, the distance after the start of measurement can be shortened to a range without perforation, for example, from 40 mm to 90 mm (measurement length 50 mm).

[0028] (Emboss pattern) The kitchen towel 11x may further have an embossing pattern different from the concavo-convex pattern together with the concavo-convex pattern derived from the paper machine. Such an embossing pattern can be easily formed, for example, by processing using an embossing roll having convex portions on the roll circumferential surface (hereinafter also referred to as "embossing"). The area ratio of the convex portions on the embossing roll [(total area of the convex portion surfaces / total surface area of the embossing roll) × 100] is, for example, in the range of 4% or more and 40% or less, in the range of 6% or more and 30% or less, or in the range of 9% or more and 18% or less. By setting the area ratio of the convex portions on the embossing roll within the above-mentioned range, it becomes easy to adjust the ply peeling strength within a preferable range. When the area ratio of the convex portions is less than 4%, the plies tend to peel off and it becomes difficult to wipe, and when it exceeds 40%, the water absorption tends to decrease easily. Further, the kitchen towel 11x of the present embodiment may be formed by laminating 2 plies after embossing a single-ply sheet. When laminating 2 plies, it is preferable to use a ply bond glue (adhesive) and apply the glue for adhesion treatment. By adhering in this way to make 2 plies, the adhesion of the plies becomes strong, and even when the kitchen towel 11x gets wet with water, the plies do not peel off and it becomes difficult to tear. Further, the embossed shape is easily maintained, and good appearance, water absorption, and wiping property can be maintained.

[0029] For example, a dot-shaped embossing pattern, a linear embossing pattern, etc. are applied to the ply of the surface 11a of the kitchen towel 11x. When a dot-shaped or linear embossing pattern is applied to the surface 11a, glue can be applied to the embossed portion of the embossing pattern for adhesion treatment, the ply peeling of the kitchen towel 11x is less likely to occur, and large fluctuations in the water absorption amount can be suppressed. Further, regarding whether the ply of the back surface 11b of the kitchen towel 11x has an embossing pattern different from the embossing pattern, there is no particular limitation as long as it has a concavo-convex pattern derived from the papermaking process. Whether nested embossing or pin-to-pin embossing is applied, or no embossing is applied, but preferably nested embossing or no embossing, more preferably no embossing.

[0030] In a preferred embodiment, the emboss pattern is a linear emboss pattern from the viewpoints of ease of numerical setting of ply peel strength and the like. As the linear emboss pattern, specifically, as shown in FIG. 9, one pattern includes two types of figures, a figure having a substantially round oval shape and a figure having another pattern inside thereof, and the figure is substantially line-symmetric vertically and horizontally as a whole and includes a combination of a plurality of curves and figures. There is no particular limitation as long as it is a pattern including two of each of these two types of figures. In a more preferred embodiment, the substantially round oval shape has a double substantially round shape.

[0031] In the linear emboss pattern, when the total length (the total length of all embosses having the above dimensions) obtained by adding the lengths of all embosses with a thickness of 0.1 mm or more and 4 mm or less and a length of 5 mm or more is, for example, 50 cm / 100 cm 2 or more and 550 cm / 100 cm 2 or less, 80 cm / 100 cm 2 or more and 410 cm / 100 cm 2 or less, or 110 cm / 100 cm 2 or more and 300 cm / 100 cm 2 or less. By setting the total length within the above range, for example, it becomes easier to adjust the ply peel strength to an appropriate range.

[0032] The above total length is measured as the total when adding the lengths of all embosses with a thickness of 0.1 mm or more and 4 mm or less and a length of 5 mm or more inside the quadrilateral E that includes all of one emboss pattern as shown in FIG. 9, and 100 cm 2Take the total length of the hits. The size of one side of this square E can be appropriately changed according to the size of the embossed pattern. Note that when an embossed pattern adjacent to the embossed pattern contained in the square is included within the square that includes all the embossed patterns, the length of the adjacent embossed pattern is also measured and included in the total length. Also, when the size of one side of the square E cannot be clearly determined by the embossed pattern, the size of the square E is set to 10 cm × 10 cm, and the total length of the embossed lengths included in this square E is measured. By setting the total length within the above range, in the kitchen towel 11x with high water absorption like in this embodiment, the ply is less likely to peel off and the wiping property becomes good. The total length is obtained by actually measuring by the method described above. Note that it may also be measured using a general microscope.

[0033] In the embossed pattern, the depth of the emboss is, for example, in the range of 0.06 mm or more and 1.1 mm or less, the range of 0.10 mm or more and 0.80 mm or less, or the range of 0.20 mm or more and 0.55 mm or less. When the depth of the emboss is less than 0.06 mm, in the kitchen towel 11x with high water absorption like in this embodiment, the ply is likely to peel off. When the depth of the emboss exceeds 1.1 mm, the specific volume of the kitchen towel 11x becomes high, and there is a tendency that it is difficult to improve the water absorption despite being bulky.

[0034] In the aforementioned embossed pattern, an emboss with an area of 1 mm 2 or more and 40 mm 2 or less is defined as an emboss single unit. The number of emboss single units per 100 cm 2 of the unit area in the embossed pattern is not particularly limited, but is, for example, in the range of 20 or more and 1800 or less, the range of 50 or more and 1000 or less, or the range of 80 or more and 500 or less. When the number of emboss single units is less than 20, in the case of the kitchen towel 11x with good water absorption like in this embodiment, the plies are likely to peel off. When the number of emboss single units exceeds 1800, the kitchen towel 11x tends to be crushed and the water absorption decreases. Also, the shape of the emboss single unit can be used without particular limitation, such as circular, elliptical, rectangular, square, floral pattern, etc.

[0035] In addition, in the aforementioned embossed pattern, the area of the individual embossments is 1 mm 2 or more and 40 mm 2 or less. The depth of the individual embossments is, for example, in the range of 0.10 mm or more and 0.80 mm or less, 0.25 mm or more and 0.67 mm or less, or 0.35 mm or more and 0.55 mm or less. If the depth of the individual embossments is less than 0.10 mm, the water absorption of the kitchen towel 11x tends to decrease, and the tactile sensation during use tends to be inferior. If it exceeds 0.80 mm, the kitchen towel 11x tends to become bulky, the roll density decreases, and the cosmetic appearance of the packaging tends to deteriorate.

[0036] The area and depth of the embossments are measured using a microscope. As the microscope, the product name "One-shot 3D Measurement Macroscope VR-3100" manufactured by KEYENCE Corporation is used. As the image observation / measurement / image analysis software for the microscope, the product name "VR-H1A" is used. The measurement conditions are a magnification of 12 times and a field area of 24 mm × 18 mm. The measurement magnification and field area may be appropriately changed depending on the size of the embossments to be determined.

[0037] As shown in FIG. 3, the area of the embossment is determined by measuring the length a of the longest part of the periphery fr of the embossment and the length b of the longest part in the direction perpendicular to the length a, and taking their product (a × b). FIG. 4 shows the height profile on the X-Y plane by the microscope, and the height of the sheet surface is represented by shading. The substantially elliptical part where the shading in FIG. 4 is different from the periphery indicates individual embossments, and the length a of the longest part of one of the embossments can be visually distinguished. Among these, for the individual embossments with an area of 1 mm 2 or more and 40 mm 2 or less, the number per 100 cm 2 is counted.

[0038] The measurement of the number of embossments is performed over the entire width of the sheet, from the entire area between two adjacent perforations in the longitudinal direction, for an arbitrary 100 cm 2Select the part and measure it visually. If the part is 100 cm where, for example, knurling (edge embossing) process has been performed 2 and cannot be selected, measure the number of embossings for the measurable parts excluding the parts that cannot be measured due to knurling (edge embossing) process etc., and convert it to the number of embossings per 100 cm 2 or so.

[0039] Next, measure the depth of the embossing for the embossing units with an area of 1 mm 2 or more and 40 mm 2 or less. The depth of the embossing is obtained by measuring the height difference of the embossing using the microscope described above. First, draw a line segment AB as shown in FIG. 4 to obtain the height profile of FIG. 5. Note that the line segment AB may be drawn so as to cross the embossing. The height profile is a (measured) cross-sectional curve S representing the unevenness of the actual sample surface of the sheet, but it also includes noise (sharp peaks caused by fiber lumps on the surface of the sheet, fibers growing in beard-like shapes, or parts without fibers). When calculating the height difference of the unevenness, it is necessary to remove such noise peaks.

[0040] Then, as shown in FIG. 6, calculate the "contour curve" W from the cross-sectional curve S of the height profile, and find the difference between the average value of the bottoms P1 and P2 and the top sandwiched between the bottoms P1 and P2 in this contour curve W, and set this as the depth D1 of the embossing. Similarly, find the difference between the average value of the bottoms P2 and P3 and the top sandwiched between the bottoms P2 and P3, and set this as the depth D2 of the embossing. Similarly, measure D3. Note that D1, D2, and D3 are measured at continuous locations as shown in FIG. 6. Perform this measurement at 10 locations on the kitchen towel 11x, and take the average value of the data at a total of 30 locations as the depth of the embossing. If the distance between the embossings (the distance between P1 and P2) is more than 1 cm apart, instead of measuring at continuous locations, find the difference between the average value of the bottoms P1 and P2 and the top sandwiched between the bottoms P1 and P2, set this as the depth D1 of the embossing, measure D1 at 30 locations, and take the average value as the depth of the embossing.

[0041] Note that the "contour curve" is a curve obtained by removing the component of the surface roughness with a wavelength shorter than λc: 800 μm (where λc is the "filter that defines the boundary between the roughness component and the waviness component" described in JIS B 0601 "3.1.1.2") from the cross-sectional curve using a low-pass filter. Note that if λc is set to be equal to or greater than the distance between adjacent embosses P1 and P2, P2 and P3 (this is called the emboss pitch), there is a possibility that the peak will be recognized as noise, so λc is set to be less than the emboss pitch. For example, when the emboss pitch is 800 μm or less, for example, λc is set to 250 μm.

[0042] When measuring the emboss, the measurement surface is the surface side. Also, when selecting the emboss, measure at the portion corresponding to 10% of the roll length of roll 2 from the outer end of the outer wrap of roll 2 (the position where the use of the kitchen towel 11x starts). For example, when the roll length is 30 m, measure at the portion 30 m × 10% = 3 m from the end. If the portion corresponding to 10% of the roll length hits the perforation, measure the outer wrap side of the perforation.

[0043] (Non-embossed part) In another preferred embodiment, the root mean square height Sq of the surface roughness of the portion of the kitchen towel 11x where the aforementioned emboss pattern is not applied (hereinafter also referred to as the "non-embossed part") is, for example, in the range of 35 μm or more, in the range of 50 μm or more and 150 μm or less, in the range of 60 μm or more and 120 μm or less, or in the range of 70 μm or more and 90 μm or less. By setting the root mean square height Sq of the surface roughness of the non-embossed part to 35 μm or more, for example, it becomes easy to adjust the water absorption of the kitchen towel 11x to an appropriate range defined in this embodiment. When the root mean square height Sq of the surface roughness is less than 35 μm, the water absorption tends to decrease. Also, the upper limit of the root mean square height Sq of the surface roughness is not particularly limited, but if the value becomes too high, it may be bulky.

[0044] The root mean square height Sq of the surface roughness of the non-embossed part is measured, for example, using a microscope. As the microscope, the product name "One-shot 3D Measurement Macroscope VR-3100" manufactured by KEYENCE is used, similar to the depth of the embossment described above. As the image observation, measurement, and image analysis software of the microscope, the product name "VR-H1A" is used. Also, the measurement conditions are to measure under the conditions of a magnification of 38 times and a field area of 8 mm × 6 mm. The measurement magnification and field area may be appropriately changed depending on the size of the non-embossed part to be obtained.

[0045] For the image shown in Fig. 10, a filter is set in the same way as the depth of the embossment described above. Specifically, by setting an S-filter (low-pass filter), components with a scale smaller than the cut-off wavelength are removed from the image, and by setting an L-filter (high-pass filter), components with a scale larger than the cut-off wavelength are removed from the image. Here, the S-filter is 500 μm and the L-filter is 8 mm. If the S-filter and L-filter are selected, the root mean square height Sq is automatically calculated.

[0046] For the non-embossed part, three turns of the kitchen towel 11x are removed from the roll 2, and the measurement is performed in the state of a two-ply sheet using the fourth turn of the kitchen towel 11x. Also, if there are perforations, the measurement is avoided for all of them. Two measurements are taken at two positions in the width direction of the roll 2, and then the same measurement as above is performed at each position where the roll 2 is rotated three times by 90 degrees each in the flow direction of the kitchen towel 11x (the number of measurement positions in the flow direction is a total of four positions), and the average value of a total of eight positions (2 × 4) is taken as the root mean square height Sq.

[0047] (Roll length and paper thickness) The roll length of the kitchen towel 11x is not particularly limited, but from the viewpoints of the replacement frequency of roll 2, the ease of handling of the product 1, the ease of storage, etc., for example, it is in the range of 20 m or more and 50 m or less, in the range of 25 m or more and 45 m or less, or in the range of 30 m or more and 40 m or less. Also, the thickness (paper thickness) of the kitchen towel 11x is not particularly limited, but from the viewpoints of the ease of adjusting the basis weight and water absorption, strength, etc., for example, it is in the range of 1.6 mm / 10 plies or more and 4.7 mm / 10 plies or less. The paper thickness is measured using a thickness gauge (dial thickness gauge "PEACOCK (registered trademark)" manufactured by Ozaki Seisakusho Co., Ltd.). The measurement is carried out with a measurement load of 3.7 kPa and a measurer diameter of 30 mm. A sample is placed between the measurer and the measurement table, and the gauge is read when the measurer is lowered at a speed of 1 mm or less per second for 1 second. Five sets of kitchen towels 11x laminated in 2 plies are stacked and measured as 10 plies. Also, the measurement is repeated 10 times and the measurement results are averaged.

[0048] (WMDT and WCDT) For the 11x kitchen towel, the wet machine direction tensile strength (WMDT, hereinafter also referred to as "wet longitudinal strength") based on the former JIS S 3104 is, from the viewpoint of wiping performance etc., for example, in the range of 1.0 N / 25 mm or more and 7.0 N / 25 mm or less, in the range of 2.0 N / 25 mm or more and 6.0 N / 25 mm or less, or in the range of 2.5 N / 25 mm or more and 5.0 N / 25 mm or less. If the WMDT is within the above-mentioned range, it will not tear and is soft and easy to wipe. For the 11x kitchen towel, the wet cross direction tensile strength (WCDT, hereinafter also referred to as "wet transverse strength") based on the former JIS S 3104 is, from the viewpoint of wiping performance etc., for example, in the range of 0.7 N / 25 mm or more and 7.0 N / 25 mm or less, in the range of 4.0 N / 25 mm or more and 13.0 N / 25 mm or less, or in the range of 5.0 N / 25 mm or more and 10.0 N / 25 mm or less. If the WCDT is within the above-mentioned range, it will not tear and is soft and easy to wipe. If the WMDT is less than 1.0 N / 25 mm and / or the WCDT is less than 0.7 N / 25 mm, the 11x kitchen towel is likely to tear when absorbing water, and the wiping performance tends to decrease. If the WMDT exceeds 7.0 N / 25 mm and / or the WCDT exceeds 7.0 N / 25 mm, the density of the 11x kitchen towel becomes high, and the wiping performance tends to decrease due to the decrease in water absorption, or it becomes hard and the wiping performance decreases.

[0049] (Sheet length) The sheet length in the width direction (CD direction) of the roll 2 of the 11x paper towel is, for example, in the range of 180 mm or more and 350 mm or less, 200 mm or more and 340 mm or less, or 250 mm or more and 300 mm or less. By setting the length of the 11x paper towel in the CD direction within the above range, it is possible to easily remove the roll 2. Also, the length in the MD direction (pitch) orthogonal to the CD direction of the 11x paper towel is, for example, in the range of 160 mm or more and 330 mm or less, 180 mm or more and 305 mm or less, or 200 mm or more and 280 mm or less. By setting the length of the 11x paper towel in the MD direction within the above range, the roll diameter is within an appropriate range.

[0050] (Material) The 11x kitchen towel is mainly composed of wood pulp and may contain one or more of waste paper pulp, non-wood pulp, deinked pulp, etc. within a range that does not impair the quality of the 11x kitchen towel as required. The 11x kitchen towel may contain one or more of various additives.

[0051] Examples of the wood pulp include NBKP (softwood kraft pulp), LBKP (hardwood kraft pulp), etc. As the NBKP, any kraft pulp produced from softwood such as radiata pine, slash pine, southern pine, lodgepole pine, spruce, Douglas fir, etc. can be used. As the LBKP, any kraft pulp produced from hardwood can be used, and among them, kraft pulp produced from Eucalyptus grandis, Eucalyptus globulus, etc. of the genus Eucalyptus in the myrtle family is preferred. Note that NUKP (unbleached softwood pulp) can be used instead of NBKP, and LUKP can be used instead of LBKP. The kitchen towel 11x of the preferred embodiment is composed of NBKP (softwood kraft pulp) and LBKP (hardwood kraft pulp). At this time, the usage ratio of NBKP and LBKP is, for example, in the range of NBKP:LBKP = 25% by mass or more and 70% by mass or less: 30% by mass or more and 75% by mass or less, in the range of NBKP:LBKP = 35% by mass or more and 60% by mass or less: 40% by mass or more and 65% by mass or less, or in the range of NBKP:LBKP = 40% by mass or more and 55% by mass or less: 45% by mass or more and 60% by mass or less. Also, by setting the range of NBKP:LBKP = 10% by mass or more and 100% by mass or less: 0% by mass or more and 90% by mass or less, it is possible to easily obtain the kitchen towel 11x that satisfies the basis weight, water absorption, and specific volume defined in this embodiment.

[0052] Examples of the waste paper pulp include pulp produced from liquid beverage cartons (such as milk cartons, sake cartons, etc.). Examples of the non-wood pulp include synthetic fibers made of synthetic resins such as nylon, vinylon, polyester, acrylic, polyethylene, polypropylene, and polystyrene. Examples of the deinked pulp include pulp produced from waste newspapers, magazines, etc. When the deinked pulp contains a fluorescent dye, the content ratio of the deinked pulp containing the fluorescent dye is preferably 20% by mass or less of the entire pulp used. Examples of the additives include softeners including debonder softeners, bulking agents, dyes, dispersants, dry paper strength enhancers, wet paper strength enhancers, drainage improvers, pitch control agents, absorption improvers, etc.

[0053] <Kitchen roll towel> As shown in Fig. 2, the roll (kitchen roll towel) 2 is formed by winding the kitchen towel 11x around the core 10. The outer diameter D1 of the core 10 of the roll 2 is not particularly limited. However, from the viewpoints of facilitating the adjustment of the winding density of the roll 2 and the handleability of the roll 2 during manufacturing, etc., for example, it is in the range of 35 mm or more and 45 mm or less, or in the range of 37 mm or more and 42 mm or less. Hereinafter, the main characteristics of the roll 2 will be described.

[0054] (Core outer diameter) The core 10 is located at the center of the roll 2 and has a substantially circular cross-section for winding the paper towel 11x. As the roll 2, there are those with a paper tube inserted, those with a hollow part, etc. The core outer diameter is the outer diameter of the aforementioned core part (paper tube, hollow part, etc.). The core outer diameter is, for example, in the range of 30 mm or more and 60 mm or less, in the range of 34 mm or more and 55 mm or less, or in the range of 37 mm or more and 50 mm or less. According to this embodiment, an amount of paper towel 11x that does not deteriorate during its use period can be wound around one product 1. Also, the winding diameter of the roll 2 does not become larger than necessary. The roll width of the roll 2 is, for example, in the range of 180 mm or more and 350 mm or less, in the range of 210 mm or more and 325 mm or less, or in the range of 240 mm or more and 300 mm or less. The roll mass of the roll 2 is, for example, in the range of 160 g or more and 550 g or less, in the range of 230 g or more and 450 g or less, or in the range of 270 g or more and 380 g or less. The roll mass is the mass per 280 mm of the roll width excluding the core (paper tube) 10. When the roll width is not 280 mm, it is converted to the mass per 280 mm by proportional calculation.

[0055] (Roll density) The roll density of the roll 2 is 0.04 g / cm 3 or more and 0.15 g / cm 3 or less, preferably 0.06 g / cm 3 or more and 0.12 g / cm 3 or less, more preferably 0.07 g / cm 3 or more and 0.09 g / cm 3It is within the following range. Instead of setting the roll density range alone, it is necessary to set the roll density according to the basis weight, water absorption, and specific volume of the kitchen towel 11x. When the roll density is less than 0.04 g / cm 3 ³, when caramel wrapping, it is difficult to neatly fold the top and / or bottom surfaces of Product 1, and unbonded parts or scorches tend to occur, compromising the cosmetic appearance. When the roll density exceeds 0.15 g / cm 3 ³, when the roll diameter is constant, the unevenness of the kitchen towel 11x tends to be flattened and the water absorption decreases.

[0056] The roll density is expressed as {{the cross-sectional area of the outer diameter (roll diameter DR) part of the roll}-(the cross-sectional area of the core outer diameter DI part)}×roll width (converted to per 280 mm). For example, when the roll mass per 280 mm of roll width is 327 g, the roll diameter DR is 122 mm, and the outer diameter of the core is 39 mm, the roll density = 327 g÷[{3.14×(122 mm÷2÷10)² - 3.14×(39 mm÷2÷10)²}×(280 mm÷10)] = 0.11 g / cm 3 ³. When there is no core in Roll 2, the diameter of the central hole is replaced with the core outer diameter DI.

[0057] (Roll diameter) The roll diameter per roll of Roll 2 is, for example, in the range of 113 mm or more and 200 mm or less, in the range of 135 mm or more and 180 mm or less, or in the range of 140 mm or more and 160 mm or less. When the roll diameter is less than 113 mm, it tends to be difficult to adjust the roll density and the water absorption of the kitchen towel 11x to a well-balanced and good range. When the roll diameter exceeds 200 mm, the roll density and thus the cosmetic appearance of the packaging tend to decrease.

[0058] <Packaging film> The product 1 is obtained by wrapping one or two or more rolls 2 with a packaging film 20 for caramel. As the packaging film 20, for example, a resin film having heat sealability is used. Since the packaging film 20 has heat sealability, it can be packaged without using, for example, a hot melt adhesive or the like, so that the packaging aesthetics of the obtained product 1 is improved. The packaging film 20 may be single-layer or multi-layer. The material of the packaging film 20 is preferably a thermoplastic resin. The thermoplastic resin has heat sealability and is also suitable for recycling. Specific examples of the thermoplastic resin include, for example, polyolefin resins such as polyethylene and polypropylene, polyester resins such as PET, polyamide (trade name nylon, etc.), polycarbonate, polystyrene, polyvinyl chloride, and the like. Among these, a polyethylene film is preferred.

[0059] The thickness of the packaging film 20 is, for example, in the range of 15 μm or more and 40 μm or less, in the range of 20 μm or more and 35 μm, or in the range of 25 μm or more and 30 μm or less. If the thickness is less than 15 μm, scorching tends to occur during heat sealing, resulting in a decrease in aesthetics or the packaging film 20 being torn. Also, if the thickness exceeds 40 μm, the openability of the product 1 tends to decrease. Further, the packaging film 20 may or may not be provided with a perforation for opening the product 1.

[0060] <Method for manufacturing kitchen towel sheet and kitchen towel roll> The kitchen towel sheet 11x and the roll 2 can be manufactured, for example, in the order of (1) the papermaking and creping processes, (2) the embossing process, and (3) the roll winding process. In the manufacturing process, it is preferable to use the through-air dryer technology. At this time, in the papermaking and creping processes, a pattern of irregularities derived from a papermaking process (fabric) different from the above-described embossing pattern is applied to the kitchen towel 11x. By having this pattern of irregularities, the water absorption capacity of the kitchen towel 11x becomes even higher. Note that being derived from the papermaking process means being applied between the headbox of the paper machine and the inlet of the Yankee dryer in the papermaking process of the kitchen towel 11x. In particular, when the sheet is dried together with the fabric in the through-air dryer section, irregularities are formed. More specifically, in a part of the papermaking process shown in FIG. 8, irregularities can be imparted by the belt press section 30 disposed between the dewatering roll 31 and the Yankee dryer 32. In the belt press section 30, the wet paper 34 and the embossed belt 33 (the embossed belt 33 loops around the belt press section 30 and the Yankee dryer 32) are pressed together, so that a pattern of irregularities can be imparted to the wet paper.

[0061] Also, the pattern of irregularities can be appropriately changed by changing the pattern of the fabric (fine pattern, rough pattern). When the pattern of irregularities is changed, the specific volume (paper thickness) changes, but it is preferable to select a pattern such that the specific volume (paper thickness) of the base paper falls within the numerical range described later. Also, it is preferable to select a pattern such that the specific volume of the kitchen towel 11x and the root mean square height Sq of the surface roughness of the non-embossed part fall within the respective numerical ranges described above.

[0062] One or more of the thus obtained kitchen roll towels 2 are caramel-wrapped as shown in FIG. 1 by a packaging film 20 according to a known method in a state where their longitudinal directions are aligned and they are arranged in parallel in the width direction.

[0063] The present invention has been described above using embodiments. Needless to say, the technical scope of the present invention is not limited to the scope described in the above embodiments and examples. It is obvious to those skilled in the art that various changes or improvements can be made to the above embodiments. Also, it is clear from the description of the claims that forms with such changes or improvements can also be included in the technical scope of the present invention.

Example

[0064] Examples and comparative examples are given below to more specifically explain this embodiment.

[0065] (Examples 1 to 17 and Comparative Examples 1 to 8) As raw pulp, NBKP and LBKP were used at the ratios (mass %) shown in Tables 1 to 3, and through the steps of (1) papermaking and creping, (2) embossing, (3) roll winding, and (4) caramel packaging, kitchen roll towel products of Examples 1 to 25 and Comparative Examples 1 to 12 were manufactured. For all the above examples and the kitchen roll towel products of the comparative examples, each parameter was measured and a sensory evaluation was conducted. The results are shown in Tables 1 to 3. Note that the kitchen towels of Examples 1 to 25 and Comparative Examples 1 to 8 had an uneven pattern derived from the paper machine.

[0066] The sensory evaluation was conducted in such a way that 20 monitors selected "good" or "bad" for each evaluation item. The evaluation criteria are as follows. ◎, ○, and △ were considered passing. ◎: When 18 or more and 20 or fewer people selected "good" ○: When 14 or more and 17 or fewer people selected "good" △: When 10 or more and 13 or fewer people selected "good" ×: When 6 or more and 9 or fewer people selected "good" ××: When none or 1 to 5 people selected "good"

[0067] Each evaluation item will be explained. <Water absorption per sheet>[ The remaining water after wiping was evaluated when a monitor used one sheet. <Can the sheet be used without waste? The monitor evaluated whether it felt wasteful when using and discarding one sheet. <Cosmetic property Visual evaluation was performed on the occurrence of scorching and unbonded parts. <Resistance to tearing of the packaging film The resistance to tearing of the packaging film when the product was displayed and carried by hand was evaluated. <Ease of opening The ease of opening the packaging film by tearing it with fingers or making holes was evaluated. <Wipeability The ease of wiping work when used by the monitor was evaluated. <Touch feeling during use The goodness of the touch feeling when used by the monitor was evaluated. The results are shown in Tables 1 to 3.

[0068]

Table 1

[0069]

Table 2

[0070]

Table 3

[0071] From Tables 1 to 3, it can be seen that by combining each configuration of this embodiment to meet the requirements, a kitchen roll towel product can be obtained, which has a passing evaluation of △ in some of the total evaluation items of "water absorption per sheet", "can the sheet be used without waste", "cosmetic property", "resistance to tearing of the film", "ease of opening", "wipeability", and "touch feeling during use", and a passing evaluation of ◎ in most of them.

Description of symbols

[0072] 1 Kitchen roll towel product (product) 2 Kitchen roll towels (rolls) 10 Core 11x Kitchen towel 11a Surface of the kitchen towel 11b Back side of the kitchen towel 20 Packaging film

Claims

1. A kitchen roll towel product, A kitchen roll towel formed by winding a sheet-shaped kitchen towel, which is a two-ply laminate with an embossed pattern, into a roll, And a packaging film for packaging the kitchen roll towel, The kitchen towel, Has uneven patterns derived from a paper machine applied between the headbox of the paper machine and the Yankee dryer inlet, The basis weight is 30 g / m ２ or more and 54 g / m ２ or less, the water absorption is 200 g / m ２ or more and 600 g / m ２ or less, and the specific volume is 8 cm ３ / g or more and 20 cm ３ / g or less, and The roll density of the kitchen roll towel is 0.04 g / cm ３ or more and 0.15 g / cm ３ or less, a kitchen roll towel product.

2. The kitchen roll towel product according to claim 1, which is a caramel package of one or more of the kitchen roll towels with the packaging film.

3. The ratio of DMDT / DCDT of the kitchen towel is 0.8 or more and 2.0 or less, and DMDT is 4 N / 25 mm or more and 16 N / 25 mm or less, and DCDT is 3 N / 25 mm or more and 13 N / 25 mm or less. The kitchen roll towel product according to claim 1 or claim 2.

4. The kitchen towel further has a plurality of perforations that extend in the width direction of the kitchen towel and cut the kitchen towel in the width direction. The plurality of perforations are provided at predetermined intervals in the longitudinal direction, and the area of the kitchen towel piece surrounded by two adjacent perforations in the longitudinal direction is 0.02 m ２ or more and 0.10 m ２ or less. The kitchen roll towel product according to any one of claims 1 to 3.

5. The kitchen towel has a ply peel strength of 0.01 N / 75 mm or more and 1.5 N / 75 mm. The kitchen towel roll product according to any one of claims 1 to 4.

6. The diameter of one roll of the kitchen roll towel is 113 mm or more and 200 mm or less. The kitchen towel roll product according to any one of claims 1 to 5.

7. The kitchen towel further has an embossed pattern different from the uneven pattern, and the area ratio of the convex part in the embossing roll for applying the embossed pattern is 4% or more and 40% or less, together with the uneven pattern derived from the paper machine. The kitchen towel roll product according to any one of claims 1 to 6.

8. The kitchen towel roll product according to claim 7, wherein the embossed pattern is a linear embossed pattern.

9. In the linear embossed pattern, the thickness is 0.1 mm or more and 4 mm or less, the length is 5 mm or more, and the total length when the lengths of the embosses are added together is 50 cm / 100 cm ２ or more and 550 cm / 100 cm ２ or less. The kitchen towel roll product according to claim 8.

10. The root mean square height of the surface roughness of the portion of the kitchen towel where the embossed pattern is not applied is 35 μm or more. The kitchen towel roll product according to any one of claims 7 to 9.

11. The kitchen towel roll product according to any one of claims 1 to 10, wherein the packaging film has heat sealability.

12. The thickness of the packaging film is 15 μm or more and 40 μm or less. The kitchen towel roll product according to any one of claims 1 to 11.

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