WO2020059635A1 - Tube en papier - Google Patents

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Publication number
WO2020059635A1
WO2020059635A1 PCT/JP2019/035939 JP2019035939W WO2020059635A1 WO 2020059635 A1 WO2020059635 A1 WO 2020059635A1 JP 2019035939 W JP2019035939 W JP 2019035939W WO 2020059635 A1 WO2020059635 A1 WO 2020059635A1
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WO
WIPO (PCT)
Prior art keywords
paper
base paper
water absorption
band
shaped base
Prior art date
Application number
PCT/JP2019/035939
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English (en)
Japanese (ja)
Inventor
瑛司 草野
宗央 小山
Original Assignee
日本製紙株式会社
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 日本製紙株式会社 filed Critical 日本製紙株式会社
Priority to JP2020501836A priority Critical patent/JPWO2020059635A1/ja
Publication of WO2020059635A1 publication Critical patent/WO2020059635A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
    • B27J1/00—Mechanical working of cane or the like
    • B27J1/003—Joining the cane side by side
    • B27J1/006—Joining the cane side by side by strand or wire twisting
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G19/00—Table service
    • A47G19/22—Drinking vessels or saucers used for table service
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/18—Drinking straws or the like

Definitions

  • the present invention relates to a paper cylinder, particularly a paper cylinder excellent in water resistance.
  • Plastic is widely used as a material for various products because of its low cost and easy molding, and more than 300 million tons of plastic products are produced annually. Many plastic products are disposed of properly, but some of them end up in the environment as garbage due to poor management or illegal dumping, and eventually reach the sea. The amount of plastic waste flowing into the ocean is estimated to be more than 8 million tons per year. Because many of these plastic wastes are non-biodegradable, most of them accumulate in the ocean, and by 2050 the total amount of plastic in the ocean is expected to exceed the total amount of fish (by weight).
  • Patent Documents 1 and 2 propose paper straws.
  • Means for solving the problems of the present invention are as follows.
  • the first band-shaped base paper has an inner layer that is spirally wound, and the second band-shaped base paper has an outer layer that is spirally wound,
  • the first and second band-shaped base papers have a low water absorption surface and an easy water absorption surface,
  • the first strip-shaped base paper and the second strip-shaped base paper are bonded with an adhesive. Paper cylinder according to the above. 3.
  • the third belt-shaped base paper has an intermediate layer that is spirally wound,
  • the third belt-shaped base paper is characterized in that both surfaces are easily water-absorbing surfaces and each layer is adhered with an adhesive.
  • One or both of the low water absorption surface of the first band base paper and the low water absorption surface of the second band base paper are coated with an external sizing agent.
  • Either one or both of the easily absorbable surface of the first strip base paper and the easily absorbable surface of the second strip base paper are coated with a hydrophilic surfactant.
  • the paper cylinder of the present invention is mainly made of paper and has a small environmental load.
  • the band-shaped base paper having the low water absorption surface and the easy water absorption surface used in the present invention can be continuously produced by using an on-machine type size press installed in a papermaking line, so that productivity is high. , Low cost.
  • the paper cylinder of the present invention is mainly made of paper, but has excellent water resistance, and can be suitably used for a paper cylinder used in applications that come into contact with water.
  • FIG. 2 is a partially exploded view of a paper cylinder as one embodiment of the present invention.
  • the paper cylinder of the present invention has an inner layer formed by spirally winding a first strip-shaped base paper, and an outer layer formed by spirally winding a second strip-shaped base paper.
  • the first and second band base papers used for the paper cylinder of the present invention have a low water absorption surface and an easy water absorption surface, and the inner surface of the paper cylinder has a low water absorption surface of the first band base paper and the outer surface of the paper cylinder. Are formed from the low water-absorbing surface of the second strip base paper.
  • FIG. 1 is a partially exploded view of a paper cylinder according to an embodiment of the present invention.
  • the paper cylinder 1 according to one embodiment has an inner layer 11 and an outer layer 12.
  • the inner layer 11 is formed by spirally winding a first strip-shaped base paper 110
  • the outer layer 12 is formed by spirally winding a second strip-shaped base paper 120. It is wound in a shape.
  • the first belt-shaped base paper 110 has a low water absorption surface 111 and an easy water absorption surface 112
  • the second belt base paper 120 has a low water absorption surface 121 and an easy water absorption surface 122.
  • the inner surface of the paper cylinder 1 is formed by the low water absorption surface 111 of the first band base paper 110, and the outer surface thereof is formed by the low water absorption surface 121 of the second band base paper 120.
  • the easily water-absorbing surface 112 of the first band-shaped base paper 110 and the easily water-absorbing surface 122 of the second band-shaped base paper 120 are bonded to each other with an adhesive (not shown).
  • the paper cylinder of the present invention may have at least an inner layer and an outer layer, and may have a configuration of three or more layers having one or more intermediate layers in addition to the inner layer and the outer layer.
  • the two layers of the inner layer and the outer layer, or both surfaces are easily water-absorbing surfaces. It is preferable to have three layers including one intermediate layer formed by spirally winding three strip-shaped base papers.
  • the first and second strip base papers used in the present invention have a low water absorption surface and an easy water absorption surface.
  • at least one strip-shaped base paper for forming the intermediate layer has an easily water-absorbing surface on both sides. Therefore, in the paper cylinder of the present invention, the easily water-absorbing surfaces that are easily compatible with water are adhered to each other with an adhesive, so that the respective layers are firmly adhered to each other.
  • the paper tube of the present invention is excellent in water resistance because the inner surface and the outer surface of the paper tube that are in direct contact with the liquid are formed from the low water absorbing surfaces of the first and second strip-shaped base papers.
  • the paper cylinder of the present invention hardly causes peeling between the layers and has excellent water resistance, so that it can be used for applications that come into contact with water, and can be suitably used as, for example, straws and muddlers. .
  • the overlap width (d1, d2 in FIG. 1) in the length direction of the paper cylinder is narrow because a paper cylinder with a small step can be formed.
  • the overlap width is preferably 2 mm or less, more preferably 1 mm or less, and even more preferably 0.5 mm or less.
  • forming one layer of the paper cylinder with two or more belt-shaped base papers means that, in a paper cylinder formed by spirally winding one belt-shaped base paper, two belt-shaped base papers are formed along the length direction. This is synonymous with the above cutting and is within the technical idea of the present invention.
  • the winding direction of each layer may be the same direction (S winding or Z winding) or may be different directions.
  • S winding and Z winding when the adjacent layers are wound in different directions (S winding and Z winding), the joining portion in the width direction of the strip-shaped base paper forming a certain layer and the joining portion in the width direction of the strip-shaped base paper forming the adjacent layer are formed.
  • S winding and Z winding are periodically overlapped, and a gap is likely to be formed in the overlapped portion. Therefore, it is preferable to wind in the same direction.
  • the strip-shaped base paper forming each layer is formed at the same angle with respect to the axial direction of the paper cylinder so that the joining portions in the width direction of the strip-shaped base paper forming the adjacent layers do not overlap. It is preferable to be wound in a state shifted in the band width direction. It is preferable that the shift width (D in FIG. 1) of the strip-shaped base paper forming the adjacent layer be 10% or more of the width of the strip-shaped base paper in the roll-tube length.
  • the shift width is more preferably 25% or more, more preferably 40% or more, and most preferably 50% of the width of the belt-shaped base paper in the lengthwise direction of the paper cylinder. Note that the maximum value of the deviation width is 50% of the width of the belt-shaped base paper in the length direction of the paper cylinder.
  • the diameter of the paper cylinder of the present invention is not particularly limited, and can be various diameters according to the use.
  • a paper cylinder having an inner diameter of 3 mm or more and 15 mm or less can be suitably used as a paper straw.
  • the band-shaped base paper is manufactured by cutting a paper tube base paper into a predetermined width to form a band.
  • the width of the band-shaped base paper is not particularly limited and can be appropriately adjusted depending on the diameter of the paper cylinder to be manufactured, but is usually about 8 mm or more and about 40 mm or less.
  • a paper cylinder base paper for forming the first and second belt-shaped base papers has a low water absorption surface and an easy water absorption surface.
  • the base paper for paper cylinders having a low water absorption surface and an easy water absorption surface used in the present invention can be used without particular limitation for base papers having different water absorption amounts on both surfaces.
  • a coating liquid containing a drug hereinafter, also referred to as a water-absorbing agent
  • a water-absorbing agent a drug
  • the other side of the base paper is coated with a water-absorbing agent-free coating solution, a coating solution having a different concentration of the water-absorbing agent, or a water-absorbing agent coated on one side.
  • the base paper for a cylinder serving as the first band base paper and the base paper for a cylinder serving as the second band base paper processes such as coating for forming a low water absorption surface or an easy water absorption surface are the same. And may be different.
  • the water-absorbing control agent whose action on water-absorbing property is opposite means a water-absorbing control agent applied on one side (rear surface) and a drug that has the opposite function with respect to water absorption. Is applied when an agent for increasing the water absorption is applied.
  • the value of the water absorption of the low water absorption surface obtained by the Cobb method (contact time 30 seconds) specified in JIS P8140 is preferably 20 g / m 2 or less, and more preferably 15 g / m 2 or less. More preferably, it is more preferably 12 g / m 2 or less.
  • the easily water-absorbing surface should have a higher water-absorbing degree than the low-water-absorbing surface obtained by the Cobb method (contact time 30 seconds) specified in JIS P8140, and preferably 1 g / m 2 or more. More preferably 3 g / m 2 or more, even more preferably 5 g / m 2 or more.
  • the water absorption value of each side of the band-shaped base paper obtained by the Cobb method (contact time 30 seconds) specified in JIS P8140 is: It is preferable that the value is equal to or greater than the value of the water absorption of the easily water-absorbing surface of the band-shaped base paper to be bonded. If the value of the water absorption of the band-shaped base paper forming the intermediate layer is smaller than the value of the water absorption of the easily-absorbing surface of the opposing band-shaped base paper, adhesion may be insufficient.
  • Base paper consists of pulp, filler, and various auxiliaries.
  • tableware use When the paper cylinder of the present invention is used for food and drink such as straws and muddlers and for use in contact with the mouth (hereinafter referred to as tableware use), it has been approved as a raw material as a food additive or has been FDA certified For example, it is preferable to use one that is compatible with food safety.
  • NNKP bleached kraft pulp of softwood
  • NUKP unbleached kraft pulp of softwood
  • LLKP bleached kraft pulp of hardwood
  • LKP unbleached kraft pulp of hardwood
  • SP sulfite pulp
  • Known pulp can be appropriately blended and used.
  • a chemical pulp such as LBKP or NBKP which is unlikely to cause contamination is preferably used, and a small amount of waste paper pulp is preferably used.
  • the compounding amount of the chemical pulp is preferably 80% or more, and the compounding amount of the chemical pulp is particularly preferably 100%.
  • fillers talc, kaolin, calcined kaolin, clay, heavy calcium carbonate, light calcium carbonate, white carbon, zeolite, magnesium carbonate, barium carbonate, titanium dioxide, zinc oxide, silicon oxide, amorphous silica, aluminum hydroxide
  • inorganic fillers such as calcium hydroxide, magnesium hydroxide, zinc hydroxide, barium sulfate, calcium sulfate, and organic fillers such as urea-formalin resin, polystyrene resin, phenolic resin, and fine hollow particles.
  • the filler is not an essential material and need not be used.
  • auxiliaries include rosin, an alkyl ketene dimer (AKD), an internal sizing agent such as alkenyl succinic anhydride (ASA), a polyacrylamide polymer, a polyvinyl alcohol polymer, a cationized starch, various modified starches, Dry paper strength agents such as urea / formalin resin and melamine / formalin resin, wet paper strength agents such as polyamide polyamine epichlorohydrin resin, polyamine epichlorohydrin resin, polyamide epichlorohydrin resin, polyvinylamine resin, polyethyleneimine resin, retention agent, and filtration
  • Aqueous improvers, coagulants, sulfuric acid bands, bulking agents, dyes, fluorescent brighteners, pH adjusters, defoamers, UV inhibitors, anti-fading agents, pitch control agents, slime control agents, etc. can be exemplified. Can be selected and used as needed
  • the method of producing the base paper (papermaking) and the type of the papermaking machine are not particularly limited, and the fourdrinier paper machine, the twin wire paper machine, the circular net paper machine, the gap former, the hybrid former (on-top former). And other known production (papermaking) methods and papermaking machines can be selected.
  • the pH during papermaking may be any of an acidic region (acidic papermaking), a pseudo-neutral region (pseudo-neutral papermaking), a neutral region (neutral papermaking), and an alkaline region (alkaline papermaking). Thereafter, an alkaline agent may be applied to the surface of the paper layer.
  • the basis weight of the base paper is preferably 30 g / m 2 or more and 200 g / m 2 or less from the viewpoint of forming a rigid paper cylinder.
  • the basis weight of the base paper forming each of the inner layer, the outer layer, and the intermediate layer may be the same or may be different, but in order to achieve both strength and winding workability of the paper cylinder, the basis weight of the outer layer is:
  • the weight is preferably not more than the basis weight of the inner layer and the intermediate layer.
  • the basis weight of the base paper forming the outer layer is preferably 30 g / m 2 or more and 150 g / m 2 or less.
  • the basis weight of the base paper for forming the outer layer exceeds 150 g / m 2 , the rigidity is increased and the winding processability may be reduced.
  • the basis weight of the base paper forming the inner layer or the intermediate layer is preferably from 60 g / m 2 to 200 g / m 2 .
  • ⁇ Coating liquid> One side of the base paper is coated with a coating solution containing a water-absorbing agent, and the other surface is coated with a coating solution containing no water-absorbing agent, or is not coated with a coating solution, or both sides
  • Low water absorption surface and easy water absorption by applying a coating liquid containing a water absorption adjustment agent with a different composition of the water absorption adjustment agent, or by applying a coating solution containing a water absorption adjustment agent whose effects on water absorption are opposite to each other.
  • a base paper for a paper cylinder having a surface can be obtained.
  • the water absorption adjusting agent those which increase or decrease the water absorption can be used without particular limitation, and examples thereof include an external sizing agent and a hydrophilic surfactant.
  • the coating solution containing the external sizing agent may be rosin, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), styrene-maleic acid copolymer, styrene-acrylic acid copolymer And various sizing agents such as olefins can be used without particular limitation.
  • the externally added sizing agent concentration of the coating liquid can be appropriately adjusted depending on the coating method.
  • the coating amount of the external sizing agent is preferably 0.01 g / m 2 or more and 1.0 g / m 2 or less.
  • starch and oxidized starch obtained from potato, sweet potato, corn, tapioca, wheat, etc., phosphated starch, urea phosphated starch, hydroxyethyl Water-soluble polymers commonly used as surface treatment agents such as modified starch, etherified starch, enzyme-modified starch, cationized starch, and other modified starches, carboxymethylcellulose, polyacrylamide, polyvinyl alcohol, and modified polyvinyl alcohol; An intended dry paper strength agent, wet paper strength agent and the like can be included. On the surface (size surface) to which the coating liquid containing the external sizing agent has been applied, the value of the water absorption decreases as compared to before the application. In addition, a coating liquid containing no external sizing agent or a surface on which coating is not performed (non-size surface) has a greater water absorption value than a size surface.
  • the coating liquid containing a hydrophilic surfactant can use, as the hydrophilic surfactant, a surfactant having an HLB value of more than 8 by the Griffin method without particular limitation.
  • the hydrophilic surfactant having an HLB value of more than 8 can be uniformly applied as an aqueous dispersion or an aqueous solution.
  • the hydrophilic surfactant concentration of coating solution can be suitably adjusted by coating method, the coating amount of the hydrophilic surfactant, 0.005 g / m 2 or more 1.0 g / m 2 or less Preferably, there is.
  • the coating liquid includes starch and oxidized starch obtained from potato, sweet potato, corn, tapioca, wheat, etc., phosphated starch, urea phosphated starch, hydroxy Water-soluble polymers commonly used as surface treatment agents such as modified starches such as ethylated starch, etherified starch, enzyme-modified starch, and cationized starch, carboxymethylcellulose, polyacrylamide, polyvinyl alcohol, and modified polyvinyl alcohol, and improved strength And a wet paper strength enhancer for the purpose of the present invention.
  • the surface to which the coating liquid containing a hydrophilic surfactant is applied has an increased water absorption value as compared to before the application.
  • the belt-shaped base paper of the present invention has a low water absorption surface on one side, an easy water absorption surface on the other side, and a coating liquid containing a water absorption adjusting agent such as an external sizing agent or a hydrophilic surfactant on one surface.
  • a coating liquid containing a water absorption adjusting agent such as an external sizing agent or a hydrophilic surfactant on one surface.
  • the coating method is not particularly limited as long as it can apply a coating liquid containing a water-absorbing agent, and the other surface does not contain the water-absorbing agent, the composition of the water-absorbing agent is different, A coating solution containing a water-absorbing agent, whose action is opposite to that described above, may be applied or may not be applied.
  • the coating device it is preferable to use a known size press device such as a gate roll coater, a rod metering size press, a blade metering size press, a bill blade coater, and a vervapa coater, and it is possible to continuously produce a base paper for a paper cylinder. It is particularly preferable to use an on-machine type size press installed in a papermaking line because of its excellent production efficiency. Furthermore, by cutting the base paper for a paper cylinder into a predetermined width, the belt-shaped base paper used in the present invention can be manufactured.
  • the paper cylinder of the present invention is formed by bonding each layer with an adhesive.
  • a known adhesive can be used without particular limitation.
  • a vinyl acetate-based, polyvinyl alcohol-based, starch-based, acrylic-based, epoxy-based adhesive, or the like can be used.
  • a water-soluble or water-dispersible adhesive containing a water-based emulsion is preferable since it has a small environmental load during production and can be used safely for tableware.
  • an adhesive that is biodegradable is preferable because it has a small impact on the environment.
  • the paper cylinder of the present invention can be manufactured by a known method. That is, the paper cylinder of the present invention can be manufactured by cutting the paperboard for a paper cylinder into a band-shaped base paper, and attaching the band-shaped base paper with an adhesive while spirally winding the band-shaped base paper around a mandrel (iron core). The adhesive can be applied to one side or both sides of the band base paper before the roll base paper is fed out and wound around a mandrel.
  • Example 1 The basis weight of 80 g / m 2 base paper of one side oxidized starch (Nihon Cornstarch Corporation SK100) was prepared coating was easily water surface at 2.1 g / m 2. In addition, the water absorption of the easily water-absorbing surface by the Cobb method (contact time 30 seconds) specified in JIS P8140 was 24.3 g / m 2 .
  • oxidized starch SK100, Nippon Cornstarch Co., Ltd.
  • a styrene acryl sizing agent PROGLUTIN A288, Kurita Water Industries, Ltd.
  • the first band-shaped base paper was spirally wound around a mandrel having a diameter of 6 mm so that the low water-absorbing surface was inside to form an inner layer.
  • a second strip-shaped sheet of the easily water surface polyvinyl acetate-based adhesive (NICHIEI Kako Co., Ltd. AV-650Y-6L) a coating weight 7 g / m 2, the easily water surface as an inner over the inner layer
  • the outer layer was formed by spirally winding to obtain a paper cylinder.
  • Example 2 A paper tube base paper was obtained in the same manner as in Example 1, except that the styrene acrylic sizing agent having a low water absorption surface was an AKD sizing agent (SEIKO PMC SE2366) and the coating amount was 2.5 g / m 2 . .
  • the water absorbency of the low water absorption surface of the base paper for a paper cylinder by the Cobb method (contact time: 30 seconds) specified in JIS P8140 was 16.7 g / m 2 .
  • a paper cylinder was obtained in the same manner as in Example 1.
  • Example 3 A base paper for a paper cylinder was obtained in the same manner as in Example 1, except that the oxidized starch having a low water absorption surface was ethylene-modified polyvinyl alcohol (Exeval RS4104, Kuraray Co., Ltd.) and the coating amount was 2.6 g / m 2 .
  • the water absorption of the low water absorption surface of this paperboard base paper by the Cobb method (contact time 30 seconds) specified in JIS P8140 was 14.8 g / m 2 .
  • a paper cylinder was obtained in the same manner as in Example 1.
  • Example 4 Except that the oxidized starch on the low water absorption surface was ethylene-modified polyvinyl alcohol (Exeval RS4104, Kuraray Co., Ltd.), the styrene acrylic sizing agent was AKD sizing agent (SEIKO PMC SE2366), and the coating amount was 2.7 g / m 2.
  • a paper cylinder base paper was obtained.
  • the water absorption of the low water absorption surface of the base paper for paper cylinder by the Cobb method (contact time 30 seconds) specified in JIS P8140 was 13.6 g / m 2 .
  • a paper cylinder was obtained in the same manner as in Example 1.
  • Example 5" A surface-active agent (Nissin Chemical Industries, Ltd.) has a basis weight of 110 g / m 2 and a water absorption of 16.3 g / m 2 on both sides according to the Cobb method (contact time 30 seconds) specified in JIS P8140. Co., Ltd., Surfynol 465) was applied at a coating amount of 0.02 g / m 2 to give an easily water-absorbing surface to obtain a base paper for a paper cylinder. The water absorption of the easily water-absorbing surface measured by the Cobb method (contact time: 30 seconds) specified in JIS P8140 was 28.1 g / m 2 .
  • Example 6 A base paper for a cylinder was obtained in the same manner as in Example 5, except that a base paper having a basis weight of 60 g / m 2 was used. Easy water surface is coated surface, water absorption by the non-coated is cumene Cobb method specified in JIS P8140 of the low water surface (contact time 30 seconds), respectively 29.9g / m 2, 16.2g / m 2 Met. Using this base paper for a paper cylinder, a paper cylinder was obtained in the same manner as in Example 1.
  • FIG. 2 shows a schematic diagram of the water resistance test 2.
  • the base paper for each paper cylinder made in the above example was cut into two strips of 5 cm ⁇ 20 cm, and the same polyvinyl acetate adhesive as used in the preparation of the paper cylinder was applied to one base paper on the easily water-absorbing side of the base paper. Using a bar, coating was carried out so as to obtain a solid content of 30 g / m 2 except for an area 3 cm from the short side end. Next, the other water-absorbing surface side of the base paper was adhered to the coated surface of the adhesive and dried overnight to obtain a test piece.
  • one base paper is fixed to a wire with a clip, and a 100 g weight is fixed to the short side end of the other base paper with a clip.
  • the entire test piece was immersed so that the weight did not contact the bottom of the container.
  • the time until the adhesive surface of the test piece was peeled off 5 cm from the end side where the weight was fixed was measured. Table 1 shows the results.
  • the paper cylinder base papers manufactured in Examples 1 to 6 required 5 minutes or more to peel off 5 cm under a load of 100 g / 5 cm width, and had good water resistance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Paper (AREA)
  • Table Equipment (AREA)

Abstract

La présente invention résout le problème de fourniture d'un tube en papier imposant une faible charge à l'environnement et présentant une excellente résistance à l'eau. A titre de solution, l'invention concerne un tube en papier comprenant une couche interne formée d'un premier papier de base en forme de bande enroulé en spirale, et d'une couche externe formée d'un second papier de base en forme de bande enroulé en spirale. Les premier et second papiers de base en forme de bande sont pourvus d'une surface à faible absorption d'eau et d'une surface facilement absorbante l'eau. Le tube en papier a une surface interne formée de la surface à faible absorption d'eau du premier papier de base en forme de bande, et une surface externe formée de la surface à faible absorption d'eau du second papier de base en forme de bande.
PCT/JP2019/035939 2018-09-21 2019-09-12 Tube en papier WO2020059635A1 (fr)

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JP2018-177008 2018-09-21
JP2018177008 2018-09-21

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WO2020059635A1 true WO2020059635A1 (fr) 2020-03-26

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020138014A (ja) * 2019-02-25 2020-09-03 三ツ星ベルト株式会社 紙製ストロー及びその製造方法
WO2021200739A1 (fr) * 2020-03-30 2021-10-07 株式会社クラレ Adhésif à base d'eau pour pailles de papier et paille de papier
JP2022056293A (ja) * 2020-09-29 2022-04-08 ソイル コーポレーション 多段結束構造を含むハイブリッド紙ストロー製造方法およびハイブリッド紙ストロー
JP2022056292A (ja) * 2020-09-29 2022-04-08 ソイル コーポレーション 多段結束構造を含む紙ストロー製造方法およびその紙ストロー
US20220396001A1 (en) * 2020-12-17 2022-12-15 Long Bamboo Technology Group Co., Ltd. Bamboo straw machining method

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JP2018135612A (ja) * 2017-02-22 2018-08-30 三菱製紙株式会社 印刷用塗工紙
JP2020006131A (ja) * 2018-06-27 2020-01-16 日本製紙株式会社 紙筒
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JPH06133840A (ja) * 1992-10-26 1994-05-17 Shigeru Nakagawa 紙 管
JP2009233348A (ja) * 2009-07-10 2009-10-15 Michitaka Kaida 紙製ストロー
JP2011105340A (ja) * 2009-11-17 2011-06-02 Marusumi Paper Co Ltd スパイラル紙管
JP3216663U (ja) * 2018-04-03 2018-06-14 ▲ユ▼▲ティン▼ 許 飲料用紙製ストロー

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