WO2018066452A1 - ティシュペーパー - Google Patents

ティシュペーパー Download PDF

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Publication number
WO2018066452A1
WO2018066452A1 PCT/JP2017/035282 JP2017035282W WO2018066452A1 WO 2018066452 A1 WO2018066452 A1 WO 2018066452A1 JP 2017035282 W JP2017035282 W JP 2017035282W WO 2018066452 A1 WO2018066452 A1 WO 2018066452A1
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WO
WIPO (PCT)
Prior art keywords
value
tissue paper
tissue
friction coefficient
paper
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Application number
PCT/JP2017/035282
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English (en)
French (fr)
Japanese (ja)
Inventor
秀太 保井
萬　秀憲
堀切川　一男
山口　健
圭 柴田
祥平 松村
尚也 山井
Original Assignee
大王製紙株式会社
国立大学法人東北大学
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Application filed by 大王製紙株式会社, 国立大学法人東北大学 filed Critical 大王製紙株式会社
Publication of WO2018066452A1 publication Critical patent/WO2018066452A1/ja

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor

Definitions

  • the present invention relates to tissue paper, and particularly to tissue paper to which a moisturizing agent is not applied.
  • the tissue paper can be broadly divided into those in which a moisturizing agent such as polyol is added to the base paper by external addition, and tissue paper to which no moisturizing agent is added.
  • a moisturizing agent such as polyol
  • a moisturizing agent is referred to as a moisturizing tissue, a chemical solution applying type tissue, etc., and the moisture content is increased by the moisturizing action of the moisturizing agent, and the softness and smoothness are improved.
  • tissue paper without moisturizing agent is mainly a product that emphasizes cost, also called general-purpose tissue, general-purpose type, among tissue paper without moisturizing agent.
  • high-quality products that belong to a high-quality category with relatively high basis weight and moisturizing tissue. These are sometimes collectively referred to as non-moisturizing tissue, non-moisturizing tissue, and the like.
  • Chemical solution-giving tissue paper is softened due to the increase in moisture content mainly due to the effect of moisturizing agent, and is specialized in facial use.
  • non-moisturizing tissue is also used for dusting and facial use, although it is also used for wiping off dust and dust, especially in general-purpose types.
  • high-quality products of non-moisturizing tissue are often used mainly for biting and facial use in the same manner as moisturizing tissue.
  • tissue paper quality evaluations such as the texture of tissue paper are “soft”, “smooth”, “thickness” depending on simple human skin, regardless of whether it is moisturizing tissue or non-moisturizing tissue.
  • quality evaluations such as the texture of tissue paper are “soft”, “smooth”, “thickness” depending on simple human skin, regardless of whether it is moisturizing tissue or non-moisturizing tissue.
  • Each sensory evaluation test has been conducted.
  • quantitative evaluation is difficult with such an evaluation method.
  • the physical properties of tissue papers that affect functionality are not necessarily the same between moisturizing tissues that have a significant increase in moisture content and affect sensory evaluation and non-humidifying tissue that does not contain a moisturizing agent that increases moisture content. Conceivable. For this reason, it was difficult to design a higher quality non-moisturizing tissue paper by the design based on the above sensory evaluation.
  • the main problem of the present invention is to provide a non-moisturizing tissue paper that has an unprecedented and extremely high consumer sensory evaluation value regarding the touch.
  • the first aspect of the present invention is: A pair of two-ply tissue paper containing no humectant,
  • the basis weight per ply is 12.5 to 16.0 g / m 2
  • the ratio of the longitudinal dry tensile strength to the transverse dry tensile strength (length / width) is 3.8 to 5.1
  • the stiffness value is 2.0 to 2.8
  • the tissue paper is characterized in that a ratio of rigidity value to average value of dynamic friction coefficient (rigidity value / average value of dynamic friction coefficient) is 1.73 to 2.11.
  • the second embodiment of the present invention is the tissue paper according to the first embodiment, wherein the product obtained by multiplying the moisture content and the stiffness value (moisture content x stiffness value) is 12.93 or less.
  • the tissue paper according to the present invention is a tissue paper which is also referred to as a non-moisturizing type, non-moisturizing tissue, etc. and does not contain a moisturizing agent by external addition such as application.
  • the moisturizing agent in the present invention is included in tissue paper mainly for the purpose of improving the moisture content by the moisture absorption effect, and is used regardless of whether it is a moisturizing tissue or a general purpose tissue. Softeners and paper quality improvers as internal additives have a slight moisturizing effect and do not mean that.
  • the humectant not used as an external additive in the present invention is a hygroscopic material such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, sorbitol, glucose, xylitol, maltose, maltitol, mannitol, trehalose. Is the main effect.
  • the number of plies and sets of this tissue paper is one set of two plies, and the basis weight per ply is 12.5 to 16.0 g / m 2 . If the basis weight is 12.5 to 16.0 g / m 2 , the effect of the present invention is obtained.
  • the paper thickness is not necessarily limited in the present invention, but is preferably in the range of 130 to 210 ⁇ m with 2 plies in the following measuring method. The effect of the present invention is easily achieved.
  • the basis weight in the present invention means a value measured based on JIS P 8124 (1998). Also, the paper thickness value is determined by fully adjusting the humidity of the test piece under the conditions of JIS P8111 (1998), and then dial thickness gauge (thickness measuring instrument) "PEACOCK G type" (manufactured by Ozaki Seisakusho) under the same conditions. It is the value measured using. The specific procedure is to confirm that there is no dust, dust, etc. between the plunger and the measuring table, lower the plunger on the measuring table, move the memory of the dial thickness gauge to adjust the zero point, and then Raise the plunger, place the sample on the test bench, slowly lower the plunger and read the gauge at that time. At this time, only the plunger is placed.
  • dial thickness gauge thickness measuring instrument
  • the terminal of the plunger is made of metal so that a circular plane having a diameter of 10 mm is perpendicular to the plane of the paper, and the load at the time of measuring the paper thickness is about 70 gf. The average value obtained by performing the measurement 10 times is used.
  • the tissue paper according to the present invention has a ratio of longitudinal dry tensile strength to longitudinal dry tensile strength (longitudinal / lateral) of 3.8 to 5.1, and a stiffness value of 2.0 to 2.
  • the ratio of the stiffness value to the mean value of the dynamic friction coefficient (stiffness value / average value of the dynamic friction coefficient) is 1.73 to 2.11.
  • the tissue paper according to the present invention exhibits a very excellent touch although it is a non-moisturizing tissue paper when the aspect ratio, rigidity value, and rigidity value / dynamic friction coefficient average value satisfy the above ranges.
  • the dry tensile strength according to the present invention refers to a value measured based on a tensile test of JIS P 8113 (1998).
  • the rigidity value is a compression rigidity value measured as follows. First, as shown in FIG. 1, five sets of tissue paper folded in half on a horizontal table 3 are stacked to form a sample 4, and a flat and smooth 187 g stainless steel metal plate 5 is placed thereon. The position where it becomes steady is set as the reference position. Next, with this steady position as an initial state, the displacement amount D from the reference position is measured for the weight 6 placed on the metal plate 5 and loaded at a rate of 0.196 N up to 0.98 N. The displacement obtained at each load is plotted, the plot points are approximated by straight lines, and the slope converted per set is calculated as the compression stiffness of each tissue paper sample. The amount of displacement from the reference position is measured by a laser measuring instrument 8 as shown in FIG.
  • the light source is a red semiconductor laser
  • the wavelength is 670 nm
  • the output is a maximum of 170 ⁇ W
  • the spot diameter is about ⁇ 2 ⁇ m
  • the resolution is 0.01 ⁇ m
  • sufficient accuracy is obtained.
  • An example of such a laser measuring instrument is the Keyence double-scan high-precision laser measuring instrument LT9000 series, and in particular, the measurement can be performed by a Keyence double-scan high-precision laser measuring instrument LT-9010M.
  • the moisture content according to the present invention is the moisture content of the product, and is a value measured according to JIS P 8127 (1998) after conditioning the sample under the conditions of JIS P 8111 (1998).
  • the tissue paper according to the present invention has a product obtained by multiplying the moisture content and the stiffness value (moisture content x stiffness value) of 12.93 or less.
  • the friction element is formed by adjoining 20 piano wires P having a diameter of 0.5 mm, and has a contact surface formed to have a length and a width of 10 mm. It is assumed that a unit bulging portion whose tip is formed by 20 piano wires P (curvature radius 0.25 mm) is formed on the contact surface.
  • the average value of the dynamic friction coefficient according to the present invention can be measured using a pin-on-plate type friction test apparatus which is a dynamic friction coefficient average value measuring apparatus.
  • Any pin-on-plate type friction test apparatus may be used as long as the sliding speed can be appropriately selected from 0.1 to 100.0 mm / s, the vertical load from 0 to 1 kgf, and the sliding distance from 1 to 200 mm.
  • the average value of the dynamic friction coefficient according to the present invention is measured as follows. First, a tissue paper 10 that is a sufficiently large sample is placed on a horizontal plate 21 of the pin-on-plate friction test apparatus 1. It mounts in the state of folding, and the one side edge part 11 of the longitudinal direction is fixed with the jig
  • the average value of the dynamic friction coefficient is an average value of the dynamic friction coefficient of each tissue paper sample when the sliding distance is 4 to 5 mm.
  • the sliding speed, the vertical load F, and the sliding distance are rubbed by the contact force sensor (HapLog) when five subjects use tissue paper, for example, grasp the tissue paper by hand or rub to check the touch. These values are determined based on the measured values of the sliding speed, the vertical load F, and the sliding distance when the above operations are performed. In this test, it is not necessary to distinguish between the MD direction and the CD direction.
  • the measurement conditions are an experimental room temperature of 20 ° C., a laboratory humidity of 20 RH%, and the lubrication state is no lubrication in the atmosphere.
  • the measurement sample is left in a chamber at 25 ° C. and 20% RH for 24 hours and used for the test.
  • the contact 23 is moved by sliding instead of reciprocating.
  • the contact 23 is a soft urethane material having a contact area larger than that of a human fingertip and hardness as high as that of a human finger, and a plurality of grooves about the size of a human fingerprint are formed in the urethane material along a direction perpendicular to the moving direction. It shall be formed.
  • an apparatus for performing this measurement for example, Trinity Lab Co., Ltd., Tribomaster TYPE ⁇ v1000 can be cited.
  • the contact may be measured as an optional “sensory contact” manufactured by the same company.
  • the tissue paper according to the present invention when the aspect ratio, the stiffness value, and the stiffness / dynamic friction coefficient average value satisfy the above ranges, respectively, it shows a very excellent touch while being a non-moisturizing tissue paper, It will be described that the product obtained by multiplying the moisture content and the rigidity value (moisture content ⁇ stiffness value) is within the numerical range of the present invention, the touch is more excellent.
  • the inventors first conducted a sensory evaluation test on a number of currently available tissue papers, and included friction coefficient that would affect smoothness and softness, including the average value of the dynamic friction coefficient according to the present invention. Various measurements were made.
  • the sensory evaluation test is a free method determined by the subject himself, such as handing out various tissue papers as samples in a random order to each subject, and biting, touching, and wiping the subject. Tissue paper is used, and the subject's free usage is used to rank the “feel” of each tissue paper sample as a “preferred” or “preferred” criterion. The value was the sum of points for each ranked sample.
  • the conventional sensory evaluation method for quality evaluation of tissue paper is to perform individual evaluations such as softness, smoothness, thickness, strength, etc. in comparison with the reference sample, and score each evaluation. In general, the sum is used as an evaluation value.
  • the sensory evaluation test according to the present invention has an advantage not found in the conventional method that evaluates the first impression when tissue paper is used in a free usage mode and expresses the functionality at the time of use.
  • the conventional sensory evaluation is mainly performed by comparison with a reference sample, and thus it is difficult to accurately grasp the relationship between the sensory evaluation and the paper quality parameter.
  • the test shows the sensory characteristics during use with no difference between users, so if you analyze the correlation between this sensory evaluation value and the paper quality parameter, the paper quality parameter that accurately affects the texture will be shown. Can be searched with high accuracy.
  • the moisture content has a large effect on the moisture retaining tissue with a high moisture content.
  • the difference in water content was not so great, and a correlation with paper quality parameters other than water content was also predicted.
  • a multiple regression analysis was performed in order to analyze the paper quality parameter that affects the average value of the dynamic friction coefficient in the non-humidifying tissue.
  • paper quality parameters for non-moisture-free tissue paper including commercial products, paper thickness, longitudinal and transverse dry tensile strength, transverse wet tensile strength, arithmetic average roughness, and arithmetic average waviness are measured.
  • a regression analysis with these was performed, but no strong correlation was found.
  • tissue paper is formed by the entanglement of a large number of fibers, and that the user of tissue paper picks up the tissue paper with a finger when using it,
  • the thickness of the tissue paper is expected to affect the fiber entanglement, change the fiber density on the surface, and affect the friction.
  • the displacement in the direction was measured as described above and defined as the stiffness value.
  • the inventors have designed the tissue paper in the range of the stiffness value that has not been achieved in the tissue paper so far.
  • the ratio is 2.0 to 2.8, and the ratio of the stiffness value showing a positive correlation to the average dynamic friction coefficient value showing a negative correlation (stiffness value / dynamic friction coefficient average value) is 1.73 to 2.11.
  • the paper was completed.
  • the aspect ratio is within the range according to the present invention. If the product of the moisture content and the rigidity value (moisture content x stiffness value) is 12.93 or less, the factor of the moisture content is added and the quality of the evaluation is surely higher. Furthermore, the rigidity value according to the present invention is adjusted by adjusting the blending ratio of raw pulp, especially the blending ratio of NBKP and LBKP, adjusting the angle of the blade when dry crepe is applied, It has been found that this can be achieved by producing tissue paper using a dry paper strength agent.
  • the rigidity value of the present invention can be easily achieved by adjusting the mesh of the bulky wire used for papermaking.
  • the mesh of the bulky wire is made finer than that used in ordinary tissue paper, it becomes easy to manufacture the tissue paper having the rigidity value of the present invention. It is considered that the amount of fibers located on the surface layer of the paper and the density of the paper layer can be adjusted by adjusting the mesh of the bulky wire.
  • Table 1 below shows the physical property values and sensory evaluation values of the tissue papers according to the present invention (Examples 1 to 5) and conventional commercially available tissue papers (Comparative Examples 1 to 8). Each physical property value and sensory evaluation value are in accordance with the measurement method described above. Examples 1 to 5 and Comparative Examples 1 to 5 are non-humidifying tissue papers that do not contain a moisturizing agent, and Comparative Examples 6 to 8 are moisturizing tissue papers that contain a moisturizing agent.
  • the tissue paper according to the example of the present invention was manufactured as follows. First, the sensory evaluation test according to the present invention was performed on the non-humidified tissue papers of Comparative Examples 1 to 5 and the moisturized tissue papers of Comparative Examples 6 to 8 which are commercially available products. As described above, this sensory evaluation test ranks only the touch in a random order, and 30 subjects evaluated the score from 1 to 5 points. In other words, each example is scored between a minimum of 30 points and a maximum of 150 points.
  • the sensory evaluation value in the table is the score of the sensory evaluation test. Then, the correlation between the sensory evaluation value and the paper quality parameter of each example was subjected to regression analysis, and it was confirmed that the dynamic friction coefficient average value was the paper quality parameter that could most explain the sensory evaluation value.
  • the average value of the dynamic friction coefficients in the table is the measured value. Furthermore, this dynamic friction coefficient average value and a paper quality parameter having a high correlation were subjected to regression analysis, and a high correlation with the rigidity value was confirmed.
  • Comparative Examples 6 to 8 related to the moisturizing tissue paper in the same manner as in Comparative Examples 1 to 5, the paper quality parameter correlated with the average value of the dynamic friction coefficient is subjected to regression analysis to be a paper quality parameter that can explain the moisture content. confirmed.
  • Examples 1 to 5 based on the regression equation obtained by the regression analysis of the dynamic friction coefficient average value and the rigidity value according to Comparative Examples 1 to 5 described above, a high rigidity value that is not found in a conventional commercial product. First, a tissue paper having the range was prepared. Next, it was confirmed that the moisture content of the tissue paper produced was not so different from that of Comparative Examples 1-5.
  • Examples 1 to 5 were made of tissue papers having a moisture content of a level called non-moisturizing tissue paper and having a stiffness value not found in conventional products.
  • the tissue paper according to the present invention has a unique rigidity value, and is a non-humidity tissue paper that has a very high consumer sensory evaluation value.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Sanitary Thin Papers (AREA)
  • Paper (AREA)
PCT/JP2017/035282 2016-10-07 2017-09-28 ティシュペーパー WO2018066452A1 (ja)

Applications Claiming Priority (2)

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JP2016198826A JP6566923B2 (ja) 2016-10-07 2016-10-07 ティシュペーパー
JP2016-198826 2016-10-07

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WO2018066452A1 true WO2018066452A1 (ja) 2018-04-12

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7121947B2 (ja) 2018-06-04 2022-08-19 大王製紙株式会社 ティシュペーパー
JP2022185814A (ja) * 2021-06-03 2022-12-15 大王製紙株式会社 ティシューペーパー及びティシューペーパーの製造方法
JP2022185816A (ja) * 2021-06-03 2022-12-15 大王製紙株式会社 ティシューペーパー及びティシューペーパーの製造方法
JP2022185815A (ja) * 2021-06-03 2022-12-15 大王製紙株式会社 ティシューペーパー及びティシューペーパーの製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003199687A (ja) * 2002-01-08 2003-07-15 Daio Paper Corp トイレット用巻取衛生ロール紙
JP2004089492A (ja) * 2002-08-30 2004-03-25 Daio Paper Corp ティシュペーパーおよびティシュペーパーを収納した製品
JP2013236904A (ja) * 2012-04-20 2013-11-28 Nippon Paper Crecia Co Ltd ティシュペーパー製品及びその製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5399241A (en) * 1993-10-01 1995-03-21 James River Corporation Of Virginia Soft strong towel and tissue paper
US6033523A (en) * 1997-03-31 2000-03-07 Fort James Corporation Method of making soft bulky single ply tissue
JP4533543B2 (ja) * 2001-02-20 2010-09-01 大王製紙株式会社 ティシュペーパーの収納体
JP4044103B2 (ja) * 2005-03-31 2008-02-06 大王製紙株式会社 衛生薄葉紙の製造方法
JP2007037595A (ja) * 2005-07-29 2007-02-15 Daio Paper Corp 紙シート
JP4570669B2 (ja) * 2008-03-31 2010-10-27 大王製紙株式会社 衛生薄葉紙
JP4868621B1 (ja) * 2010-07-20 2012-02-01 大王製紙株式会社 ティシュペーパー製品
JP5455265B2 (ja) * 2012-03-14 2014-03-26 日本製紙クレシア株式会社 トイレットペーパー製品及びその製造方法
JP6035805B2 (ja) * 2012-03-22 2016-11-30 王子ホールディングス株式会社 ティシュペーパーの製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003199687A (ja) * 2002-01-08 2003-07-15 Daio Paper Corp トイレット用巻取衛生ロール紙
JP2004089492A (ja) * 2002-08-30 2004-03-25 Daio Paper Corp ティシュペーパーおよびティシュペーパーを収納した製品
JP2013236904A (ja) * 2012-04-20 2013-11-28 Nippon Paper Crecia Co Ltd ティシュペーパー製品及びその製造方法

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TWI752096B (zh) 2022-01-11
JP2018057691A (ja) 2018-04-12
TW201816230A (zh) 2018-05-01
JP6566923B2 (ja) 2019-08-28

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