WO2023188498A1 - キッチンペーパーロール - Google Patents

キッチンペーパーロール Download PDF

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Publication number
WO2023188498A1
WO2023188498A1 PCT/JP2022/040237 JP2022040237W WO2023188498A1 WO 2023188498 A1 WO2023188498 A1 WO 2023188498A1 JP 2022040237 W JP2022040237 W JP 2022040237W WO 2023188498 A1 WO2023188498 A1 WO 2023188498A1
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WO
WIPO (PCT)
Prior art keywords
kitchen paper
paper
roll
thickness
kitchen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2022/040237
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English (en)
French (fr)
Japanese (ja)
Inventor
翔平 吉田
穣 岩崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daio Paper Corp
Original Assignee
Daio Paper Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daio Paper Corp filed Critical Daio Paper Corp
Priority to CN202280090122.7A priority Critical patent/CN118591330A/zh
Publication of WO2023188498A1 publication Critical patent/WO2023188498A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00—Baking; Roasting; Grilling; Frying
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L13/00—Implements for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L13/10—Scrubbing; Scouring; Cleaning; Polishing
    • A47L13/16—Cloths; Pads; Sponges
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes

Definitions

  • the present invention relates to a kitchen paper roll made of kitchen paper wound into a roll.
  • Some kitchen paper is used in the form of a roll of kitchen paper wound up into a roll.
  • This type of kitchen paper roll was generally 10 to 15 m long and about 50 cuts, but in recent years, due to changes in consumer lifestyles, daily necessities that are easy to store and stock are becoming more popular. As a result, many products with longer rolls of kitchen paper have been developed, with the roll length increased to 20 to 40 m (see Patent Documents 1 to 3 below).
  • kitchen paper is mainly used for absorbing oil from fried foods, drippings from meat and fish, and wiping off moisture, oil, and dirt from ingredients, cooking utensils, and kitchen counters. It is used to absorb liquid.
  • the main problem of the present invention is to create a kitchen paper that has a long specification, but has excellent thickness especially in a wet state, and does not easily deteriorate in feel even when used for wiping.
  • the purpose is to provide a roll.
  • the kitchen paper roll that solved the above problem is as follows.
  • the kitchen paper is a two-ply sheet in which sheets having convex portions formed by embossing are laminated together in a nested manner with the convex portion forming surfaces facing each other,
  • the basis weight per ply is 18 to 25 g/m 2 ,
  • the thickness of the 5 sets is 1.5 to 3.0 mm,
  • the paper thickness reduction rate when wet is 0.1% to 4.0%.
  • a roll of kitchen paper in which the rolled kitchen paper has excellent thickness especially in a wet state, and does not easily deteriorate in usability even when used for wiping. be done.
  • FIG. 1 is a schematic diagram of the kitchen paper roll of this embodiment
  • FIG. 2 is a schematic cross-sectional diagram of the kitchen paper.
  • the kitchen paper roll 100 of this embodiment is configured by winding the kitchen paper 1. Specifically, as shown in FIG. 1, the kitchen paper roll 100 consists of a strip of kitchen paper with dividing perforations 50, 50 arranged at predetermined intervals, which is rolled up in the circumferential direction of a paper tube 20. It is rotated and composed.
  • the paper tube 20 is not particularly limited, but a known paper tube used for the kitchen paper roll 100, for example, a cylindrical core can be used.
  • the outer diameter L4 of the paper tube is, but not necessarily limited to, 37 to 41 mm.
  • the kitchen paper roll 100 of this embodiment has a roll length of 25 to 35 m, which is longer than conventional regular products (hereinafter also referred to as “short roll products”) with a roll length of 10 to 15 m.
  • This is a long kitchen paper roll (hereinafter also referred to as a "long product”). Therefore, compared to short products, they have advantages in terms of storage and stockability, and can be used for a longer period of time.
  • the roll diameter L1 of the kitchen paper roll of this embodiment is not necessarily limited, but if the roll diameter is excessively large compared to short rolls, the advantages of long rolls such as storage and stockability cannot be enjoyed. , it is said to be about the same level as a regular kitchen paper roll. Specifically, the winding diameter L1 is 110 to 125 mm.
  • the width L2 of the kitchen paper roll 100 of this embodiment is not necessarily limited, but may be 200 mm or more like a general roll width. Preferably it is 210 to 240 mm.
  • the number of sheets to be cut at the perforations 50, 50 is not necessarily limited, but is 125 to 175 cuts, preferably 145 to 155 cuts.
  • the winding diameter of long products is the same as that of short products, so in long products, the kitchen paper is wound with more tension. If the number of sheets to be cut by perforations is excessive when the winding length is 25 to 35 m, the number of perforations is excessive and the perforations are extended during winding, making it difficult to use because unintended cuts are likely to occur. . Moreover, it becomes difficult to manufacture.
  • the number of perforations affects the roll firmness of the roll.
  • the cut tie ratio of the perforation and the length of the cut part in the kitchen paper roll of this embodiment are not limited. It can be designed as appropriate.
  • the kitchen paper 1 of this embodiment is so-called 2-ply paper, which is composed of two sheets 11A and 11B.
  • the sheets 11A and 11B are crepe paper, and fine wrinkles are formed on the surface by applying a blade called a doctor blade at the outlet of the dryer of the paper machine during the paper making process.
  • the fiber material of the sheets 11A and 11B is mainly pulp fiber, and the blending ratio of pulp is 90% by mass or more, preferably 95% by mass or more, and more preferably 100% by mass. It is particularly desirable that the pulp be 100% by mass virgin pulp that does not contain waste paper pulp.
  • Specific pulp types include softwood pulps such as NBKP (softwood kraft pulp) and NUKP (softwood unbleached pulp), and hardwood pulps such as LBKP (hardwood kraft pulp) and LUKP (hardwood unbleached pulp).
  • the softwood pulp, which is a virgin pulp is made up of hardwood pulp, and that the pulp composition has a higher composition than the hardwood pulp.
  • the ratio of softwood pulp to hardwood pulp is preferably from 50:50 to 90:10.
  • the basis weight of the sheets (1 ply) 11A and 11B is 16 to 25 g/m 2 , preferably 19 to 24 g/m 2 . Within these ranges, it is easy to wind the paper into a long product, ensure softness and feel during use, and easily reduce the paper thickness reduction rate when wet. Note that the basis weight is a value measured based on JIS P 8124.
  • Each of the sheets 11A and 11B of the kitchen paper 1 of this embodiment has a convex portion 12b formed on one side by embossing, and a concave portion 12a corresponding to the convex portion 12b on the other side.
  • the sheets are laminated and integrated in a nested manner with the surfaces on which the convex portions 12b of each sheet are formed facing each other.
  • the nested format is a mode in which the convex portion 12b of one sheet is located in a portion of the other sheet where the convex portion 12b is not formed.
  • the nested format allows the paper to be thinner, and it also makes it easier to develop strength in the thickness direction, making it easier to make kitchen paper that is especially long and thick.
  • the sheets 11A and 11B may be laminated and integrated by bonding each other with the adhesive 13 via the tops of the convex portions 12b. In this case, all the convex portions 12b may not be bonded.
  • the adhesive 13 a known adhesive used for kitchen paper having a laminated structure can be used. Examples of such adhesives include adhesives such as polyvinyl alcohol, starch, modified starch, and carboxymethyl cellulose. Preferably it is polyvinyl alcohol.
  • the paper thickness of the kitchen paper of this embodiment is not necessarily limited, but is 300 ⁇ m to 390 ⁇ m, preferably 310 ⁇ m to 380 ⁇ m. When the paper thickness is less than 300 ⁇ m, it becomes difficult to feel the thickness, and when it exceeds 390 ⁇ m, the paper thickness tends to decrease when wet.
  • the paper thickness was measured by thoroughly conditioning the humidity of the test piece for each example under the conditions of JIS P 8111 (1998), and then using a dial thickness gauge (thickness measuring instrument) "PEACOCK G type" (Ozaki) under the same conditions. (manufactured by Seisakusho). The specific procedure is to make sure that there is no dirt, dust, etc.
  • the terminal of the plunger is made of metal, and the circular plane with a diameter of 10 mm is perpendicular to the plane of the paper, and the load when measuring the thickness is about 70 gf when the thickness is 120 ⁇ m. Note that the thickness is an average value obtained by measuring 10 times.
  • the kitchen paper roll of this embodiment is characterized in that the thickness of 5 sets of kitchen paper is 1.5 to 3.0 mm, more preferably 1.8 to 2.3 mm.
  • the thickness of 5 sets of kitchen paper is the thickness (mm) in the stacking direction when 5 sets of kitchen paper taken out from the kitchen paper roll are stacked, and can indicate the bulk of the kitchen paper.
  • a set of kitchen paper refers to a set of 2 plies.
  • the thickness of 5 sets of kitchen paper can be used as an index for evaluating the bulkiness of kitchen paper. That is, in the kitchen paper roll, the kitchen paper is stretched and wound as described above. Therefore, the kitchen paper pulled out from the kitchen paper roll is released from the tension during rolling, and its thickness changes.
  • the kitchen paper roll of this embodiment has a thickness of 1.5 to 3.0 mm, which has high resilience and has a sufficient thickness.
  • the thickness of the five sets is adjusted by controlling the tension when winding the kitchen paper of this embodiment onto a paper tube.
  • the kitchen paper roll of this embodiment is characterized in that the paper thickness decrease rate when the kitchen paper is wet is 0.1% to 4.0%. Preferably it is 1.5 to 2.5%.
  • This kitchen paper is a kitchen paper pulled out from a kitchen paper roll.
  • Kitchen paper usually loses its thickness when wet.
  • the paper thickness reduction rate when wetted is the rate at which the paper thickness decreases when kitchen paper is moistened with water. The smaller the value, the better the ability to maintain the thickness when wet. In other words, the smaller the value, the easier it is to maintain the convex portions formed by embossing.
  • the rate of decrease in paper thickness when wet is measured as follows. (1) Prepare two 10 cm x 10 cm x 2 mm thick acrylic plates (24.5 g each). (2) Pull out kitchen paper from the kitchen paper roll and cut it into 5 cm x 5 cm pieces to use as test pieces. (3) Place one test piece between the two acrylic plates prepared in (1) and measure the thickness (thickness A). When sandwiching the test piece between the acrylic plates, align the center of the kitchen paper with the center of the acrylic plate to align the center of gravity. (Thickness A) is measured using KEYENCE's "One Shot 3D Measurement Macroscope VR-3200" or its equivalent. The product name "VR-H2A" and its compatible software are used as software for observing, measuring, and analyzing images of laser microscope images.
  • the measurement conditions are a magnification of 12 times and a visual field area of 18 mm x 24 mm. At this time, draw a straight line in the center of the 18 mm long x 24 mm wide screen in the MD and CD directions using the line roughness parameter, and subtract the thickness of the acrylic board (2.0 mm) from the height at the highest point. . (4) Next, remove the acrylic plate and test piece from the measurement pedestal, remove the acrylic plate placed on top, and apply 200 ⁇ L of water evenly to the test piece using a pipette (Nichipet Ex2, Nichiryo Co., Ltd., etc.) .
  • the kitchen paper roll of this embodiment is a long product, the thickness of 5 sets of kitchen paper is 1.5 to 3.0 mm, which is comparable to short products, and furthermore, the rate of decrease in paper thickness when wet is 0. .1% to 4.0%, it has an excellent thickness feeling in a wet state, and the feeling of use does not deteriorate easily even when used for wiping. With such a characteristic kitchen paper roll, the compression and tension of the kitchen paper can be adjusted during winding.
  • roll density dry tensile strength (vertical)”, “dry tensile strength (horizontal)”, and “wet tensile strength (horizontal)” suitable for the kitchen paper roll of this embodiment will be described. These factors affect paper stiffness and tensile strength and are related to winder suitability, so these are the preferred “roll density,” “dry tensile strength (longitudinal),” “dry tensile strength (horizontal),” and “wet tensile strength (horizontal).” ), it becomes easier to adjust the paper thickness reduction rate especially when wet.
  • the kitchen paper roll of this embodiment preferably has a roll density of 0.12 to 0.15 g/cm 3 at the roll width of 200 mm or more.
  • Roll density is expressed as (roll weight)/(roll capacity).
  • the roll capacity is expressed as [ ⁇ cross-sectional area of the outer diameter (winding diameter) portion of the roll ⁇ (cross-sectional area of the core outer diameter (paper tube diameter) portion)] ⁇ roll width.
  • the roll density represents the compressed state of the kitchen paper when it is wound up with a winder. If the roll density is high, it means that a large amount of paper is wound up in a certain narrow space and is compressed.
  • the kitchen paper roll of this embodiment has a dry tensile strength (vertical) of the kitchen paper of 1800 cN/25 mm or more, a dry tensile strength (horizontal) of 800 cN/25 mm or more, and a wet tensile strength (horizontal) of 240 cN/25 mm or more.
  • the dry tensile strength (longitudinal) is preferably 1850 to 2400 cN/25 mm
  • the dry tensile strength (horizontal) is preferably 800 to 1000 cN/25 mm
  • the wet tensile strength (horizontal) is preferably 240 to 400 cN/25 mm.
  • the dry tensile strength (vertical) and (horizontal) are values measured based on JIS P 8113 using a test piece having a width of 25 mm.
  • Wet tensile strength (lateral) is a value measured based on JIS P 8135 with a test piece having a width of 25 mm.
  • the wrapping density of the kitchen paper is 0.20 to 0.40 m/cm 2 , preferably 0.26 to 0.35 m/cm 2 .
  • the winding density is a value obtained by dividing the winding length (m) of the kitchen paper by the radial area (cm 2 ) of the kitchen paper roll.
  • the winding length of the kitchen paper can be increased without increasing the winding diameter.
  • the structure of the convex and recessed parts formed by embossing is as follows. If the structure of the unevenness due to embossing is as shown below, the paper will be more resilient to collapse in the thickness direction.
  • the kitchen paper roll of the present invention is easy to use. That is, the density of the convex portions is 0.075 to 0.2 pieces/mm 2 , preferably 0.076 to 0.15 pieces/mm 2 , more preferably 0.077 to 0.1 pieces/mm 2 It is.
  • the density of convex portions indicates the number of convex portions per unit area of the sheet. With this number of convex portions, appropriate dispersibility is achieved, and the kitchen paper becomes difficult to collapse in the thickness direction. Therefore, it is easy to reduce the rate of decrease in wet paper thickness.
  • the emboss area ratio is preferably 8 to 14%, more preferably 9 to 13%, and still more preferably 9.5 to 12%.
  • the embossed area ratio is the ratio of the area of the convex portions (concave portions) to the surface of the sheet. With this emboss area ratio, the liquid absorbing property due to embossing is likely to be exhibited.
  • the shape of the convex portion is not particularly limited, but may be, for example, circular, triangular, quadrangular, oval, etc. in plan view. Note that the shape of the top of the convex portion is preferably circular from the viewpoint of increasing the strength of the convex portion.
  • the dimensions of the convex portions are not particularly limited, but are preferably 1.0 to 1.6 mm/piece, more preferably 1.2 to 1.4 mm/piece, and still more preferably 1.3 to 1.38 mm/piece. .
  • the dimensions of the convex portion are the diameter of the circle when the shape of the convex portion is circular, the length of one side when the shape is a quadrangle or a triangle, and the major axis or minor axis when the convex portion is elliptical.
  • the unit area of the convex portions is not particularly limited, but is preferably 0.5 to 2.0 mm 2 /piece, more preferably 1.0 to 1.7 mm 2 /piece, and still more preferably 1.3 to 1.6 mm 2 / pieces.
  • the unit area of the convex portion indicates the area of one convex portion.
  • the water absorption was measured as described in (1) to (5) below.
  • the oil absorption was measured as described in (1) to (5) below.
  • a rigid flat screen e.g., 120 mm x 120 mm, 30 mm mesh
  • SYMBOLS 1 ... Kitchen paper, 100... Kitchen paper roll, 11A, 11B... Sheet (crepe paper), 12a... Recessed part by embossing, 12b... Convex part by embossing, 13... Adhesive, L1... Winding diameter, L2... Kitchen paper Roll width, L4...outer diameter of paper tube.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Paper (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Sanitary Thin Papers (AREA)
PCT/JP2022/040237 2022-03-29 2022-10-27 キッチンペーパーロール Ceased WO2023188498A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280090122.7A CN118591330A (zh) 2022-03-29 2022-10-27 厨房用纸卷

Applications Claiming Priority (2)

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JP2022053846A JP2023146593A (ja) 2022-03-29 2022-03-29 キッチンペーパーロール
JP2022-053846 2022-03-29

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026083779A1 (ja) * 2024-10-18 2026-04-23 大王製紙株式会社 キッチンペーパー及びキッチンペーパーロール
CN119308182B (zh) * 2024-12-13 2025-07-04 维达纸业(浙江)有限公司 一种错位复合印花用纸及其生产工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5095161U (https=) * 1973-12-26 1975-08-09
JP2005287725A (ja) * 2004-03-31 2005-10-20 Daio Paper Corp ロール状衛生薄葉紙
JP2013072156A (ja) * 2011-09-28 2013-04-22 Daio Paper Corp 衛生薄葉紙及び衛生薄葉紙の製造方法
JP2018183514A (ja) * 2017-04-27 2018-11-22 日本製紙クレシア株式会社 キッチンタオルロール
JP2019166232A (ja) * 2018-03-26 2019-10-03 大王製紙株式会社 衛生薄葉紙
JP2019208854A (ja) * 2018-06-04 2019-12-12 大王製紙株式会社 キッチンペーパーロール及びキッチンペーパー
JP2020058860A (ja) * 2020-01-06 2020-04-16 日本製紙クレシア株式会社 衛生紙ロール

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5095161U (https=) * 1973-12-26 1975-08-09
JP2005287725A (ja) * 2004-03-31 2005-10-20 Daio Paper Corp ロール状衛生薄葉紙
JP2013072156A (ja) * 2011-09-28 2013-04-22 Daio Paper Corp 衛生薄葉紙及び衛生薄葉紙の製造方法
JP2018183514A (ja) * 2017-04-27 2018-11-22 日本製紙クレシア株式会社 キッチンタオルロール
JP2019166232A (ja) * 2018-03-26 2019-10-03 大王製紙株式会社 衛生薄葉紙
JP2019208854A (ja) * 2018-06-04 2019-12-12 大王製紙株式会社 キッチンペーパーロール及びキッチンペーパー
JP2020058860A (ja) * 2020-01-06 2020-04-16 日本製紙クレシア株式会社 衛生紙ロール

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CN118591330A (zh) 2024-09-03
TW202337372A (zh) 2023-10-01
JP2023146593A (ja) 2023-10-12

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