Paper hand towels

Abstract

To provide a paper-made hand towel that can satisfy paper tear resistance, ply slippage resistance, an appropriate total water absorption amount and tactile sensation smoothness.SOLUTION: A 2-ply paper-made hand towel is provided by making ply-up to 2-ply of a base paper having a crepe height of 15 μm or more and 38 μm or less, and a crepe number of 10 / 6 mm or more and 32 / 6 mm or less. In the paper-made hand towel, the basis weight of the hand towel is 14.9 g / m2 or more and 17.9 g / m2 or less, the tensile strength in the MD direction in the moistness on the basis of JIS P 8113 is 2.9 N / 25 mm or more and 6.9 N / 25 mm or less, the tensile strength in the CD direction in the moistness is 0.8 N / 25 mm or more and 2.1 N / 25 mm or less, and the static friction coefficient in the hood surface where the ply come in contact together is 0.55 or more and 0.98 or less.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a two-ply paper hand towel. [Background technology]

[0002] Paper hand towels are widely used in corporate offices, hotels, public restrooms, private homes, etc.

[0003] After wiping off moisture from the target object (the user's hands or face), it can be disposed of as garbage, so compared to cloth hand towels, it is more hygienic and does not require the hassle of washing that is required with cloth towels.

[0004] Paper hand towel manufacturers are considering ways to reduce the basis weight of their products in order to reduce costs and strengthen their competitiveness.

[0005] For example, Patent Document 1, an example of a prior art document on paper hand towels, discloses a kitchen towel roll formed by winding up a kitchen towel sheet having a plurality of projections and recesses on one side and perforations along the width direction, the kitchen towel roll having a roll length of 15 to 60 m, a roll diameter of 85 to 155 mm, a roll mass including the core of 130 to 530 g per 200 mm of roll width, and a longitudinal tensile strength (DMDT) of the perforations when dry based on JIS P8113 per 76 mm of roll width of 3 to 25 N / 76 mm. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2018-183514 A Summary of the Invention [Problem to be solved by the invention]

[0007] In two-ply hand towels, if the basis weight of the product is reduced from that of the current product, the total water absorption will decrease.In addition, the dry strength and wet strength will decrease, and the paper will be easily torn when used for wiping hands (poor usability), so it is important to maintain the necessary strength by beating (DDR: double disc refiner, etc.) or adding chemicals.

[0008] However, when the paper strength is increased, the paper becomes hard and the surface becomes dry (friction between the sheets of paper is reduced), which causes the plies to slip easily when used in two plies. It is possible to prevent ply slippage by adjusting the crepe height of the base paper and increasing the coefficient of friction between the sheets of paper, but such paper has an inferior feel (smoothness).

[0009] For this reason, it has been difficult for a two-ply hand towel of a specific basis weight to satisfy all of the following requirements: the paper is unlikely to tear during use, the plies are unlikely to shift, the total water absorption is adequate, and the texture is smooth.

[0010] The present invention has been made in consideration of these circumstances, and has as its object to provide a paper hand towel that is resistant to tearing of the paper, resistant to slippage of the plies, has an appropriate total water absorption capacity, and is smooth to the touch, even when plyed up into two plies. [Means for solving the problem]

[0011] The inventors conducted extensive research and found that by setting the crepe height and number of fibers of the base paper within prescribed numerical ranges, and further setting the basis weight of a hand towel made of base paper plyed up in two plies, the tensile strength in the MD and CD directions when wet based on JIS P 8113, and the static friction coefficient on the hood surface within prescribed numerical ranges, it is possible to produce a paper hand towel that is resistant to tearing of the paper, resistant to slippage of the plies, an appropriate total water absorption, and a smooth feel, even when plyed up in two plies, and thus completed the present invention. That is, the present invention provides the following.

[0012] (1) The first aspect of the present invention is a two-ply paper hand towel having a base paper with a crepe height of 15 μm to 38 μm and a crepe number of 10 / 6 mm to 32 / 6 mm plyed up into two plies, and the hand towel has a basis weight of 14.9 g / m 2 More than 17.9g / m 2 The paper hand towel is characterized in that the tensile strength in the MD direction when wet based on JIS P 8113 is 2.9 N / 25 mm or more and 6.9 N / 25 mm or less, the tensile strength in the CD direction when wet is 0.8 N / 25 mm or more and 2.1 N / 25 mm or less, and the static friction coefficient on the hood surface where the plies contact each other is 0.55 or more and 0.98 or less.

[0013] (2) A second aspect of the present invention is the paper hand towel according to (1), characterized in that the paper thickness of the hand towel is 0.08 mm / 2 ply or more and 0.21 mm / 2 ply or less.

[0014] (3) A third aspect of the present invention is a paper hand towel as described in (1) or (2), characterized in that the tensile strength of the hand towel in the MD direction when dry, based on JIS P 8113, is 12.2 N / 25 mm or more and 18.1 N / 25 mm or less, and the tensile strength in the CD direction when dry, based on JIS P 8113, is 2.8 N / 25 mm or more and 6.7 N / 25 mm or less.

[0015] (4) A fourth aspect of the present invention is a paper hand towel according to any one of (1) to (3), wherein the TS750 value of the hood surface of the hand towel measured by a tissue softness measuring device TSA is 21.5 dBV. 2 rms over 32.5dBV 2 It is characterized by being less than or equal to rms.

[0016] (5) A fifth aspect of the present invention is a paper hand towel according to any one of (1) to (4), characterized in that the hand towel is knurled, and the knurling is provided in two or more places on the hand towel.

[0017] (6) A sixth aspect of the present invention is the paper hand towel described in (5), characterized in that the ratio of the knurling width to the short-side dimension of the hand towel in the knurling is 1.0% or more and 5.0% or less.

[0018] (7) A seventh aspect of the present invention is a paper hand towel as described in (5) or (6), characterized in that the knurling has a pressing portion and a non-pressing portion, and the area ratio of the pressing portion, which is the ratio of the total area of ​​the pressing portion to the total area of ​​the knurling, is 3.0% or more and 20.0% or less.

[0019] (8) An eighth aspect of the present invention is the paper hand towel according to (7), characterized in that the depth of the pressing part is 50 μm or more and 120 μm or less. Effect of the Invention

[0020] According to the present invention, it is possible to provide a paper hand towel that satisfies the requirements of resistance to tearing of the paper, resistance to slippage of the plies, appropriate total water absorption, and smoothness to the touch. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a plan view of a paper hand towel according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an enlarged view of the knurling portion of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] Hereinafter, an embodiment for carrying out the present invention (hereinafter, simply referred to as "the present embodiment") will be described in detail. The present embodiment is an example for explaining the present invention, and is not intended to limit the present invention to the following content. The present invention can be carried out by appropriately modifying it within the scope of its gist.

[0023] In the drawings, the same elements are given the same symbols, and duplicated explanations are omitted. Furthermore, unless otherwise specified, the positional relationships such as up, down, left, and right are based on the positional relationships shown in the drawings. Furthermore, the dimensional ratios of the drawings are not limited to those shown. Furthermore, the short side direction is the direction perpendicular to the flow when the paper hand towel 1 is made, i.e., the CD (Cross Direction), and the long side direction is the MD (Machine Direction) direction perpendicular to the short side direction.

[0024] <Paper hand towels> The paper hand towel 1 according to this embodiment is a two-ply paper hand towel 1 in which the base paper 10 is plyed up into two plies. The dimension of paper hand towel 1 in the MD direction (the direction indicated by symbol X in FIG. 1) is preferably 190 mm or more and 240 mm or less, and the dimension in the CD direction (the direction indicated by symbol Y in FIG. 1) is preferably 180 mm or more and 230 mm or less. The processing form of paper hand towel 1 is not particularly limited, and either a multi-folder type or an interfolder type may be used. Furthermore, the product form of paper hand towel 1 may be any form, such as a carton, film packaging (gusset packaging, pillow packaging, etc.), pocket tissue form, etc.

[0025] The basis weight of paper hand towel 1 is 14.9 g / m 2 More than 17.9g / m 2 Less than or equal to 16.0 g / m 2 More than 17.5g / m 2 By setting the basis weight within the above range, it is possible to obtain a paper hand towel 1 that is resistant to tearing of the paper and to prevent the plies from shifting, and that has an appropriate total water absorption. The basis weight is measured in accordance with JIS P 8124.

[0026] The thickness of the paper hand towel 1 is preferably 0.08 mm / 2 ply or more and 0.21 mm / 2 ply or less, and more preferably 0.10 mm / 2 ply or more and 0.18 mm / 2 ply or less. By setting the paper thickness within the above numerical range, it is possible to obtain a paper hand towel 1 that is both resistant to tearing of the paper and resistant to slippage of the plies, and has an appropriate total water absorption. The paper thickness can be measured using a thickness gauge (for example, Ozaki Manufacturing's "PEACOCK" dial thickness gauge) under the conditions of JIS P 8111 (23±1°C, 50±2% relative humidity) with a measurement load of 3.7 kPa and a probe diameter of 3 mm, by placing a sample (a two-ply paper hand towel1) between the probe and the measurement table, and reading the gauge when the probe is lowered at a speed of 1 mm per second or less.

[0027] Furthermore, the tensile strength of the paper hand towel 1 in the MD direction when wet based on JIS P 8113 is preferably 2.9 N / 25 mm or more and 6.9 N / 25 mm or less, and 3.7 N / 25 mm or more and 5.7 N / 25 mm or less. The tensile strength of the paper hand towel 1 in the CD direction when wet based on JIS P 8113 is preferably 0.8 N / 25 mm or more and 2.1 N / 25 mm or less, and 1.0 N / 25 mm or more and 1.8 N / 25 mm or less. Since the tensile strength in each direction when wet is within the above numerical range, the paper hand towel 1 can be made to be less likely to tear when used for hand wiping. The tensile strength in each direction when wet is measured in accordance with JIS P 8113.

[0028] The tensile strength of the paper hand towel 1 in the MD direction when dry based on JIS P 8113 is preferably 12.2 N / 25 mm or more and 18.1 N / 25 mm or less, more preferably 13.5 N / 25 mm or more and 16.0 N / 25 mm or less. The tensile strength of the paper hand towel 1 in the CD direction when dry based on JIS P 8113 is preferably 2.8 N / 25 mm or more and 6.7 N / 25 mm or less, more preferably 3.7 N / 25 mm or more and 5.8 N / 25 mm or less. When the tensile strength in each direction when dry is within the above numerical range, the paper hand towel 1 can be made more resistant to tearing. The tensile strength in each direction when dry is also measured in accordance with JIS P 8113.

[0029] The paper hand towel 1 in this embodiment is two-ply, and in this case, the static friction coefficient of the hood surface where the plies contact each other is 0.55 to 0.98, and preferably 0.66 to 0.88. By setting the static friction coefficient within the above numerical range, the plies are less likely to slip from each other in the paper hand towel 1. When the base paper 10 is made by a papermaking machine, the surface that contacts the dryer is the dryer surface, and the opposite side is the hood surface. The static friction coefficient can be measured using an automatic friction tester (product name: NSF-100, manufactured by Nomura Shoji Co., Ltd.) in accordance with ISO 15359. In the measurement, two plies of paper hand towel 1 are peeled off into one ply, and the overlapping surfaces (hood surfaces) are measured. In addition, in the measurement, the automatic friction tester automatically measures one sample three times in succession and displays the values ​​for the three measurements, but the first value is used for all measurements. Then, the MD direction is measured four times and the CD direction is measured four times with different samples, and the average value of the eight measurements is taken as the final static friction coefficient.

[0030] In addition, the TS750 value measured by the tissue softness measuring device TSA on the hood surface of the paper hand towel 1 is 21.5 dBV. 2 rms over 32.5dBV 2 rms or less, preferably 24.2 dBV 2rms over 28.9dBV 2 By setting the TS750 value within the above range, the plies are less likely to slip apart and the paper hand towel 1 has a smooth feel.

[0031] The TS750 value in this case is the intensity (TS750) of the maximum peak in the first spectrum from the low frequency side, which is automatically obtained by the software on the tissue softness analyzer TSA (manufactured by Emtec; Tissue Softness Analyzer) when two plies of paper hand towel 1 are peeled off into one ply and the overlapping surface (hood surface) is measured with the tissue softness analyzer TSA, and is a value that indicates the surface smoothness of the hood surface. The method for measuring the TS750 value using the tissue softness measuring device TSA and the measuring device used therein are described in detail, for example, in JP 2013-236904 A. For various measuring methods using the tissue softness measuring device TSA, please refer to the above patent documents.

[0032] (Knurling) Moreover, the paper hand towel 1 in this embodiment is preferably provided with knurling 20. The paper hand towel 1 is preferably provided with knurling 20 in two or more locations, and more preferably in two locations. As shown in FIG. 1(a), for example, the knurling 20 is formed at two locations, an upstream end and a downstream end in the short side direction (CD direction) of the paper hand towel 1, extends in the longitudinal direction (MD direction) of the paper hand towel 1 from one end to the other end, and has a substantially rectangular shape in plan view. The plan view shape of the entire knurling 20 is not limited to the substantially rectangular shape of this embodiment, and can be any shape in plan view, such as a crescent shape, a curved shape, a fold line shape in which multiple regular acute-angle fold lines are connected, and a staircase shape. Knurling (also called edge embossing or contact embossing) is performed after overlapping the base paper 10 in the process of overlapping two plies of the base paper 10 to form a continuous sheet of the paper hand towel 1 before cutting. As the knurling method, a conventionally known method can be used, and an example thereof is a method in which a first metal roll having a peripheral surface on which a convex assembly having a three-dimensional shape (flat top surface) corresponding to the pressing portion 21 described later and extending in the longitudinal direction is formed at a predetermined interval in the circumferential direction and a second metal roll having a peripheral surface on which a concave assembly having a spatial shape corresponding to the three-dimensional shape of the above-mentioned convexities and extending in the longitudinal direction is formed at a predetermined interval in the circumferential direction are pressed against each other, and a pair of knurling rolls are used in which the rotation speed and roll diameter of each roll are adjusted so that the convex assembly and the concave assembly rotate in synchronization at the nip portion. In this knurling method, a sheet is supplied to the nip portion of the pair of knurling rolls, and a sheet is produced in which knurling 20 is applied to two places in the area that will later become the paper hand towel 1. The depth of the pressing portion 21, which will be described later, can be adjusted, for example, by selecting the pressing pressure of the first and second metal rolls in the nip portion. The pair of rolls described above has the same structure as a general embossing roll.

[0033] In the paper hand towel 1 shown in Fig. 1(a), the ratio of the knurling width to the short-side dimension of the hand towel is preferably in the range of 1.0% to 5.0%, and more preferably in the range of 1.5% to 4.0%. When the ratio of the knurling width to the short-side dimension of the hand towel is within the above numerical range, the plies are less likely to slip apart and peel off from each other, making it possible to obtain a paper hand towel 1. The ratio of the knurling width to the short-side dimension of the hand towel is the percentage of the knurling width NW (mm) to the short-side dimension of the hand towel (the dimension of the paper hand towel 1 in the CD direction) W (mm), and is expressed by the following formula. Ratio of knurling width to short-side dimension of hand towel (%) = [Knurling width NW (mm) / short-side dimension of hand towel W (mm)] x 100

[0034] In the paper hand towel 1 shown in Fig. 1(a), the knurling 20 preferably has a pressing portion 21 and a non-pressing portion 22. As shown in Fig. 2, the knurling 20 preferably has a form in which the pressing portions 21 and the non-pressing portions 22 are arranged alternately and regularly in the vertical and horizontal directions. The pressing portion 21 is a portion where two plies of base paper 10 constituting the paper hand towel 1 are joined, and the non-pressing portion 22 is a portion that is flush with the surface of the paper hand towel 1 in the planar direction. The planar shape of the pressing portion 21 is not limited to the circle of this embodiment, and examples include a square, an isosceles right triangle, a hexagon, an octagon, a star, a hemisphere, and a playing card suit shape (heart, diamond, clover, spade), etc. Furthermore, the area ratio of the pressing portion 21 of the knurling 20, which is the ratio of the total area of ​​the pressing portion 21 to the total area of ​​the knurling 20, is preferably 3.0% to 20.0%, and more preferably 5.0% to 15.0%. By having the area ratio within the above numerical range, the plies are less likely to slip apart from each other and less likely to peel off, making it possible to provide a paper hand towel 1.

[0035] The area ratio of the pressing portion 21 indicates the percentage (%) of the total area of ​​the top faces of the pressing portion 21 to the total area of ​​the knurling 20, and is expressed by the following formula. Here, the total area of ​​the knurling 20 is expressed as the product of the knurling length NL and the knurling width NW if the knurling 20 has a rectangular shape as shown in Fig. 1(b). A method for measuring the total area of ​​the top faces of the pressing portion 21 will be described later. Area ratio (%) of pressing portion 21=(total area of ​​top surface of pressing portion 21 / total area of ​​knurling 20)×100

[0036] The total area of ​​the top faces of the pressing portion 21 can be obtained, for example, as follows. First, as shown in FIG. 2, the surface (upper surface) of the knurling 20 to be measured is imaged using a microscope (product name: Digital Microscope VHX-6000, manufactured by Keyence Corporation) at a magnification of 20 times to obtain an image. Next, in the obtained image, the contour of each of the top faces of the pressing portion 21 is identified, and the area of ​​each top face is obtained based on the identified contour, and converted to 1 / 20 of the value to obtain a measured value. Finally, the obtained measured values ​​are summed up to obtain the total area of ​​the top faces of the pressing portion 21.

[0037] Moreover, the depth of pressing portion 21 is preferably 50 μm or more and 120 μm or less, and more preferably 65 μm or more and 105 μm or less. By having the depth within the above numerical range, the plies are less likely to slip apart from each other and less likely to peel off, making it possible to provide paper hand towel 1. The depth of the pressed portion 21 is measured as follows. First, the cross section of the knurling 20 to be measured is imaged at a magnification of 12x using a one-shot 3D shape measuring device (product name: Digital Microscope VR-3000, manufactured by Keyence Corporation). Next, in the image of the cross section of the knurling 20 obtained, the depth from one surface of the base paper 10 to the bottom of the pressed portion 21 is measured, thus measuring the depth of the pressed portion 21 at 30 points. Finally, the arithmetic average of the 30 measured values ​​is calculated to determine the depth of the pressed portion 21.

[0038] (base paper) The base paper 10 (before plying) used in the manufacture of the paper hand towel 1 has a crepe height of 15 μm to 38 μm, and preferably 20 μm to 35 μm. Also, the number of crepes in the base paper 10 is preferably 10 / 6 mm to 32 / 6 mm, and preferably 15 / 6 mm to 25 / 6 mm. Crepes are wavy wrinkles formed by mechanically compressing the base paper 10 in the longitudinal direction by a papermaking machine during the manufacturing process of the base paper 10, and can further improve the bulkiness (bulk feeling), softness, water absorbency, surface smoothness, aesthetic appearance (crepe shape), elongation, etc. of the base paper 10. The crepe height and the number of crepes can be measured, for example, using the measurement method described in JP 2019-051028 A. By keeping the crepe height and number of crepes of the base paper 10 within the above numerical ranges, the smoothness of the surface (hood surface) of the ply-up paper hand towel 1 and the static friction coefficient between the plies (hood surface) of the base paper 10 become appropriate values, making it possible to produce a paper hand towel 1 that is less likely to slip between the plies and has a smooth feel.

[0039] As described above, according to this embodiment, it is possible to manufacture a paper hand towel 1 that satisfies the requirements of resistance to tearing of the paper, resistance to slippage of the plies, appropriate total water absorption, and smoothness to the touch. EXAMPLES

[0040] The present invention will be described in more detail with reference to the following examples and comparative examples, but the present invention is not limited to the following examples in any way.

[0041] Paper hand towels of Examples 1 to 12 and Comparative Examples 1 to 13 were produced under the conditions shown in Tables 1 and 2, and the following evaluations were performed. Note that the "number of sets" in the evaluation method refers to the number of sets counted when one ply-up paper hand towel, not the base paper, is counted as "one set." In addition, each parameter other than the following evaluations was measured according to the above-mentioned standards or measurement methods.

[0042] (Frequency of paper tears) The frequency of paper tears was evaluated when 200 or more sets of hand towels were used for drying hands. The frequency of occurrence was calculated as a percentage by (number of sets with paper tears / total number of hand towels used) x 100%, and an overall evaluation was made according to the following criteria. Less than 0.5%: Excellent - Almost no tearing of the paper, very good usability 0.5% to less than 1.5%: Good → Paper tears are rare, and the feeling of use is good 1.5% to 3%: Acceptable → Paper tears are within the acceptable range, no problem with use 3% or more: Unacceptable → Many tears in the paper occur, making it difficult to use

[0043] (Frequency of ply deviation) The hand towels were taken out of storage and 200 or more pairs were used, and the frequency of occurrence of ply misalignment was evaluated. The frequency of occurrence was calculated as a percentage by (number of pairs with ply misalignment / total number of hand towels used) x 100%, and an overall evaluation was made according to the following criteria. Less than 0.5: Excellent - Almost no price deviation, very good usability 0.5% to 1.5%: Good → Little ply deviation, good usability 1.5% to 3%: Acceptable → Ply misalignment is within the acceptable range, no problem with use 3% or more: Unacceptable → Excessive ply peeling occurs, resulting in poor usability

[0044] (TWA: an index of water absorption performance) The water absorption performance of the hand towels was evaluated based on the TWA values ​​measured using the following method and the following criteria. 100g / m 2 Above: Excellent → When used for wiping hands, it can wipe away a lot of water. 90g / m 2 More than 100g / m 2 Less than: Good → When used for wiping hands, it can wipe away a lot of moisture. 80g / m 2 More than 90g / m 2 Less than: Possible → When used for wiping hands, it can wipe away moisture without any problems. 80g / m 2 Less than: Not acceptable → The amount of moisture absorbed is slightly low, and performance is poor when used for wiping hands.

[0045] The total water absorbency per unit area (TWA) was measured by first cutting the obtained hand towel into a square test piece of 76 x 76 mm and measuring the dry mass (W1). After that, the test piece was immersed in distilled water for 2 minutes, and then one corner of the test piece was placed at the top, and the top and the two adjacent corners were supported and hung in an extended state (RH 100%), and the mass (W2) was measured after leaving it for 30 minutes. The value of (W2-W1) was then calculated and this value was applied to 1 m of the sample. 2 Water retention per unit (g / m 2 The converted value was used as the water absorption per unit area (TWA).

[0046] (Smoothness of touch) A subjective sensory evaluation was conducted on 50 people regarding the smoothness of the hand towels when they were picked up and used to dry their hands, with each person rating them on a scale of 1 to 5. "Excellent ◎": The texture is particularly smooth and particularly comfortable to use. The average score of 50 reviewers is 4.0 points or more. "Good": The texture is smooth and the feel is comfortable. The average score of 50 people was 3.0 points or more and less than 4.0 points. "Failed x": The paper does not feel smooth and is stiff. It feels uncomfortable to use. The average score of 50 people is less than 3.0 points.

[0047] The conditions and evaluation results of each example are shown in Table 1, and the conditions and evaluation results of each comparative example are shown in Table 2. Note that a sample was deemed to have passed the test if all of the above evaluations were "fair" or better.

[0048] [Table 1]

[0049] [Table 2]

[0050] From the above, it was at least confirmed that this embodiment can provide a paper hand towel that satisfies the requirements of resistance to tearing of the paper, resistance to slippage of the plies, appropriate total water absorption, and smoothness to the touch. [Explanation of symbols]

[0051] 1 Paper hand towel 10 Base paper 20 Knurling 21 Pressing part 22 Non-pressing part W Hand towel short side dimension NL Knurling length NW Knurling width

Claims

1. A two-ply paper hand towel is made by plying up a base paper having a crepe height of 15 μm or more and 38 μm or less and a crepe number of 10 / 6 mm or more and 32 / 6 mm or less into two plies, The hand towel has a basis weight of 14.9 g / m ２ 17.9g / m or more ２ The paper hand towel is characterized in that the tensile strength in the MD direction when wet, based on JIS P 8113, is 2.9 N / 25 mm or more and 6.9 N / 25 mm or less, the tensile strength in the CD direction when wet is 0.8 N / 25 mm or more and 2.1 N / 25 mm or less, and the static friction coefficient on the hood surface where the plies contact each other is 0.55 or more and 0.98 or less.

2. 2. The paper hand towel according to claim 1, wherein the paper thickness of the hand towel is 0.08 mm / 2 plies or more and 0.21 mm / 2 plies or less.

3. The paper hand towel according to claim 1 or 2, characterized in that the tensile strength of the hand towel in the MD direction when dry, based on JIS P 8113, is 12.2 N / 25 mm or more and 18.1 N / 25 mm or less, and the tensile strength of the hand towel in the CD direction when dry is 2.8 N / 25 mm or more and 6.7 N / 25 mm or less.

4. The TS750 value measured by the tissue softness measuring device TSA on the hood surface of the hand towel is 21.5 dBV. ２ rms or more 32.5dBV ２ The paper hand towel according to any one of claims 1 to 3, characterized in that it has an rms of less than or equal to 1.

5. The hand towels are knurled, 5. The paper hand towel according to claim 1, wherein the knurling is provided in two or more places on the hand towel.

6. 6. The paper hand towel according to claim 5, wherein the ratio of the knurling width to the short-side dimension of the hand towel in the knurling is 1.0% or more and 5.0% or less.

7. 7. The paper hand towel according to claim 5, wherein the knurling has a pressing portion and a non-pressing portion, and the area ratio of the pressing portion, which is the ratio of the total area of ​​the pressing portion to the total area of ​​the knurling, is 3.0% or more and 20.0% or less.

8. The paper hand towel according to claim 7, wherein the depth of the pressing portion is 50 μm or more and 120 μm or less.

Images