JP2020082586A - Non-slip laminate, non-slip package bag and production method of non-slip package bag, and coating liquid for forming non-slip part - Google Patents

Abstract

To provide a packaging bag capable of freely forming a non-slip part by printing or the like, and capable of forming a non-slip part having excellent retention on an outermost surface when applying a heat treatment such as heat seal treatment of a non-slip laminate having excellent non-slip property and during bag making.SOLUTION: A laminate provided with a non-slip layer on at least one side of a base material characterized in that the non-slip layer is made of a coating layer obtained by applying a coating liquid for forming a non-slip part, and the coating liquid for forming the non-slip member contains 1 to 50 mass% of a heat-expansive micro-capsule in the coating liquid for forming the non-slip part, 1 to 25 mass% of a thermoplastic resin, and 45 to 95 mass% of a solvent.SELECTED DRAWING: None

Description

The present invention relates to a non-slip laminate.

Conventionally, it has been used as a refillable packaging bag or a packaging bag in which a spout is formed so that the contents can be easily dispensed. In these packaging bags, in order to facilitate the opening of the spout, easy-open processing parts such as notches and perforations are formed by machining with a grindstone or blade, laser processing, heat processing, electric discharge processing, etc. .. However, when forming a notch or the like, chips or shavings may be mixed in, or the hand may be cut at the notch. The formation of the easy-opening processed portion by laser processing facilitates opening by linear processing, but the tab at the tip of the spout for cutting by hand is slippery and may not cut well.

In Patent Document 1, in a packaging bag having a spout formed of a plastic film, an easy-open processing part is formed at the spout using a printable optical reflection type laser marker, and a tab is formed at the spout tip. However, there is proposed an easily openable packaging bag obtained by a method for producing an easily openable packaging bag in which the tab is subjected to anti-slip processing. Further, it is preferable to apply embossing, knurling, or the like as the anti-slip processing of the tab, and in the disclosed embodiment, embossing is applied to make the uneven anti-slip processing.

Patent Document 2 discloses a flexible packaging bag that is formed of a plastic film material and has a spout formed by cutting a cut portion along a cutting instruction line. At least the flexible packaging bag is cut off. A flexible packaging bag has been proposed in which a non-slip layer is provided on the surface of the picked-up portion.

However, in Patent Document 1, the embossing is applied to make the uneven non-slip process, and it is difficult to register it with a pattern printed on the packaging bag or the embossing induces bag making deviation. There is a risk. Further, in Patent Document 2, a non-slip layer is provided on the surface of the picked-up portion of the cut-out portion, but since the anti-slip layer has a small layer thickness, it has a weak holding property when being cut by hand, and has an anti-slip effect. It has been found that there is a possibility that it will not be exhibited and that cutting may not be possible.

Therefore, a non-slip portion can be freely formed by printing or the like, and an anti-slip laminate having excellent anti-slip properties and an anti-slip product having an excellent holding property on the outermost surface at the time of bag-making or heat-sealing treatment. A packaging bag that can form a part has been desired.

JP, 2003-94532, A JP 2005-96778 A

Therefore, the present invention provides a non-slip portion that can be freely formed by printing or the like and has an excellent anti-slip property, and an excellent retention property on the outermost surface during bag-making or when heat-sealed. An object of the present invention is to provide a packaging bag capable of forming a non-slip portion having a groove.

The present inventors provide a laminate comprising a non-slip layer on at least one of the base materials, wherein the non-slip layer comprises a coating layer coated with a coating liquid for forming a non-slip portion, The coating liquid for forming a part is 1 to 50% by mass of a heat-expandable microcapsule, 1 to 25% by mass of a thermoplastic resin, and 45 to 95% by mass of a solvent in the coating liquid for forming a non-slip part. It was found that the above object can be achieved by including and, and the present invention has been completed.

That is, the present invention is
(1) A laminate having a non-slip layer on at least one of the base materials,
The non-slip layer is composed of a coating layer coated with a coating liquid for forming a non-slip portion,
The anti-slip part forming coating liquid contains 1 to 50 mass% of a heat-expandable microcapsule, 1 to 25 mass% of a thermoplastic resin, and 45 to 45 mass% of a solvent in the anti-slip part forming coating liquid. 95 mass% and a non-slip laminate,
(2) The anti-slip laminate according to (1), wherein the anti-slip layer is a coating layer formed by at least one selected from a gravure printing method and a flexographic printing method.
(3) A packaging bag produced using the non-slip laminate according to (1) or (2),
A non-slip layer that constitutes the anti-slip laminate is a packaging bag, which is the outermost surface,
(4) a step of preparing a base material,
Applying a non-slip layer to at least one of the substrates,
A step of forming a bag-like shape having an opening on at least one of the non-slip layers on the base material so as to be the outermost surface,
Storing the contents from the opening,
A step of sealing the opening,
And forming a non-slip part by foaming the anti-slip layer by heat treatment during the step of forming into a bag shape having the opening and/or the step of sealing the opening. A method for manufacturing a non-slip packaging bag,
(5) a step of preparing a paper base material,
Applying a non-slip layer on one side of the paper substrate,
A step of forming a packaging container having an opening on at least one side so that the non-slip layer on the paper substrate is the outermost surface,
Including, by heat treatment during the step of molding into the packaging container, to form a non-slip portion by foaming the non-slip layer, a method for manufacturing a non-slip packaging container,
(6) A coating liquid for forming an anti-slip part, which is used for an anti-slip laminate having an anti-slip layer on at least one of the base materials,
In the coating liquid for forming the non-slip portion,
1 to 50 mass% of heat-expandable microcapsules,
1 to 25 mass% of thermoplastic resin,
The solvent is 45 to 95% by mass,
A coating liquid for forming a non-slip portion, characterized by containing
It is about.

According to the present invention, a non-slip portion can be formed freely by printing or the like, and an anti-slip laminate having excellent anti-slip properties and an excellent outermost surface when subjected to heat treatment such as bag making or heat sealing treatment. It is possible to provide a packaging bag capable of forming a non-slip portion having excellent holding property.

Hereinafter, modes for carrying out the present invention will be described in detail. It should be noted that the present embodiment is merely one mode for carrying out the present invention, and the present invention is not limited to the present embodiment, and various modifications and embodiments without departing from the scope of the present invention Is possible.

The anti-slip laminate of the present invention is a laminate comprising an anti-slip layer on at least one of the base materials, wherein the anti-slip layer comprises a coating layer applied with a coating liquid for forming an anti-slip portion, The anti-slip part forming coating liquid contains 1 to 50 mass% of a heat-expandable microcapsule, 1 to 25 mass% of a thermoplastic resin, and 45 to 45 mass% of a solvent in the anti-slip part forming coating liquid. 95% by mass is preferable.

The base material may be one having resistance to heat treatment, and more preferably one used for food. For example, polyester films such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), polyolefin films such as polyethylene, polypropylene and ethylene-vinyl acetate, polystyrene films, alcohol-based films such as ethylene-vinyl alcohol and polyvinyl alcohol, polyamide films or Barrier polyamide film with a barrier layer in the middle, polycarbonate film, polyacrylonitrile film, polyimide film, cellophane, moisture-proof cellophane, PET film or transparent vapor deposition polyester film or transparent vapor deposition with a vapor deposition layer such as alumina on silica film or polyamide film. Polyamide film, PET film or polyamide film, polyethylene film, aluminum film deposited with aluminum deposited on polypropylene film, various coating films coated with polyvinylidene chloride resin, polyvinyl alcohol resin, polyacrylic acid resin, and other resins Examples thereof include coextruded films. These may be stretched or unstretched, and may be used alone or as a laminate of two or more kinds. Further, a paper base material can also be preferably used. Appropriate ones can be selected in consideration of mechanical strength and dimensional stability. Further, in order to improve the adhesion on the surface on which the anti-slip layer is formed, the film surface may be subjected to corona treatment, low temperature plasma treatment, flame treatment, solvent treatment, coat treatment or the like, or a pre-treated one may be selected.

The thickness of the film substrate is not particularly limited, but is not particularly limited as long as it does not hinder the printability, the winding suitability, etc., but is preferably 1 to 1000 μm, and 3 to 100 μm. More preferable. The basis weight of the paper substrate is preferably in the range of 30~600g / ^{m 2,} more preferably in the range of 100 to 500 g / ^{m 2,} more preferably in the range of 150 and 400 / ^{m 2.} If the basis weight of the paper base material is too small, heat resistance and strength may be insufficient, and if the basis weight is too large, the processability may deteriorate. The thickness of the paper substrate is usually in the range of 50 μm to 2 mm, preferably in the range of 100 μm to 1.5 mm, more preferably in the range of 150 to 800 μm, and further preferably in the range of 200 to 600 μm.

The anti-slip layer provided on at least one of the base materials is foamed to form an anti-slip portion. The anti-slip layer may be formed on both surfaces of the base material. By having the anti-slip layer on the outermost surface, the effect of anti-slip is exhibited, and it becomes easy to hold it with fingers.

The foaming is performed by heat treatment. The heat treatment is preferably carried out during bag making, heat sealing treatment, drying box or infrared heat treatment. These may be generally performed under the conditions such as heating at 190° C. for 1 second during bag making and heat sealing. The treatment in the drying box is carried out under conditions such as 120° C. for 60 seconds and the infrared heating treatment under the conditions of 150° C. for 30 seconds.

The anti-slip layer is preferably a coating layer coated with a non-slip part forming coating liquid. The anti-slip part forming coating liquid contains 1 to 50% by mass of thermally expandable microcapsules, 1 to 25% by mass of a thermoplastic resin, and 45 to 95% by mass of a solvent in the coating liquid. , Are preferably included.

The heat-expandable microcapsule preferably contains 1 to 50 mass%, more preferably 3 to 40 mass%. If it is less than 1% by mass, the anti-slip effect will be reduced, and if it exceeds 50% by mass, the adhesion to the substrate will be poor.

The heat-expandable microcapsule is a microcapsule based on a thermoplastic resin such as vinyl chloride resin, ethylene vinyl acetate resin, acrylic resin, or the like, and an aliphatic carbonization such as isobutane, butane, isopentane, or n-pentane. It contains hydrogen, and the aliphatic hydrocarbon contained therein is vaporized by heating to expand the microcapsules. The particle size of the microcapsules is 3 to 20 μm, and the expansion ratio is 4 to 10 times.

The thermoplastic resin is preferably contained in an amount of 1 to 25% by mass, more preferably 5 to 20% by mass. If it is less than 1% by mass, the adhesion to the substrate is poor, and if it exceeds 25% by mass, the fluidity of the ink is poor, and the suitability for ink production is poor.

The thermoplastic resin, shellac, rosins, rosin-modified maleic acid resin, rosin-modified phenolic resin, nitrification cotton, cellulose acetate, cellulose acetyl propionate, cellulose acetyl butyrate, chlorinated rubber, cyclized rubber, polyethylene resin, Polypropylene resin, vinyl chloride resin, polyamide resin, vinyl chloride-vinyl acetate copolymer, ethylene-(meth)acrylic acid copolymer, polyester resin, polyvinylidene chloride resin, vinyl acetate resin, ketone resin, butyral resin, chlorination Polypropylene resin, chlorinated polyethylene resin, chlorinated ethylene vinyl acetate resin, ethylene vinyl acetate resin, (meth)acrylic resin, urethane resin, styrene maleic acid resin, polystyrene resin, polyacetal resin, polycarbonate resin, casein, alkyd resin, acrylonitrile resin , Acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, polysulfone resin, polyether resin, polyethersulfone resin, polyetherketone resin, modified polyphenylene ether resin, polyphenylene sulfone resin, polyimide resin, polyamideimide resin, Amorphous polyarylate resin, polyether ether ketone resin, acrylic emulsion, urethane emulsion, polyvinyl alcohol resin, ethylene-vinyl alcohol resin, polylactic acid and the like are preferable. Among them, nitrified cotton, cellulose acetylpropionate, polyamide resin, vinyl chloride-vinyl acetate copolymer, polyester resin, chlorinated polypropylene resin, (meth)acrylic resin, urethane resin, acrylic emulsion, urethane emulsion, etc. More preferable. These resins may be used alone or in combination of two or more.
As a commercially available product, LG-FK R medium, TPH medium, VESTA medium, LRC-NT medium, KCNT medium, SYNA-S medium, LAMREK medium (above, Tokyo Ink Co., Ltd.) can be used. However, LG-FK R medium is more preferable.

The solvent is preferably contained in an amount of 45 to 95% by mass, more preferably 50 to 90% by mass. If it is less than 45% by mass, the fluidity of the ink will be poor and the ink production suitability will be poor. If it exceeds 95% by mass, the ink film thickness will be locally non-uniform, and irregular density (swimming) Phenomenon may occur.

The solvent disperses the thermally expandable microcapsules and the thermoplastic resin in the solvent. The solvent may be an organic solvent type solvent. For example, toluene, aromatic hydrocarbon solvents such as xylene, hexane, cyclohexane, methylcyclohexane, aliphatic hydrocarbon solvents such as ethylcyclohexane, methanol, ethanol, isopropyl alcohol, normal propyl alcohol, 1-butanol, 2-butanol, Alcohol solvents such as isobutanol and tert-butanol, ethyl acetate, n-propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, sec-butyl acetate, ester solvents such as tert-butyl acetate, acetone, methyl ethyl ketone, methyl isobutyl. Ketones, ketone solvents such as cyclohexanone, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol dimethyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether Examples thereof include glycol ether solvents and esterified products thereof, and as the esterified product, those mainly acetated are selected, for example, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, diethylene glycol. Examples include monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, and propylene glycol monoethyl ether acetate. Among them, toluene, ethyl acetate, n-propyl acetate, isopropyl alcohol, propylene glycol monomethyl ether, methyl ethyl ketone and the like are more preferable from the viewpoint of printability and versatility. These may be used alone or in combination of two or more.

The coating liquid for forming the non-slip portion has design properties, intended use, physical properties required such as hue, stability of the coating liquid, and for the purpose of improving printability, a coloring material, an inorganic filler, an organic filler, A defoaming agent, a leveling agent, an antiblocking agent, a wax, a pigment dispersant, an antistatic agent, a slip agent, a plasticizer, a tackifier, a solvent and the like can also be contained. Any well-known and commonly used one can be appropriately selected within a range that does not impair the foamability and the characteristics of the coating liquid.

The coloring material may contain a pigment, a dye or a mixture thereof.
Examples of the pigment include titanium oxide, red iron oxide, barium sulfate, calcium carbonate, silica, zinc oxide, zinc sulfide, mica, talc, pearl, aluminum, carbon black and other inorganic pigments, phthalocyanine-based, insoluble azo-based, condensed azo-based pigments. Examples include organic pigments such as pigments, dioxazine pigments, anthraquinone pigments, quinacridone pigments, perylene pigments, perinone pigments, thioindigo pigments, and various other fluorescent pigments, metal powder pigments, and extender pigments. You may use these pigments individually or in combination of 2 or more types. As the dye, those which are dissolved or dispersed in a solvent are preferable, and they may be used alone or in combination of two or more kinds. Above all, it is preferable to use a pigment from the viewpoint of durability.

The anti-slip layer is preferably a coating layer formed by at least one selected from a gravure printing method and a flexographic printing method. Among them, a forming layer formed by a gravure printing method is more preferable.

The anti-slip layer does not necessarily have to be provided on the entire surface of the base material, and may be provided only on the portion where anti-slip is desired to be applied. It may be at least one of the base materials or both. Further, it is preferable that the non-slip layer is provided on the outermost surface. By having the anti-slip layer on the outermost surface, the effect of anti-slip is exhibited, and it becomes easy to hold it with fingers. Further, the anti-slip layer is foamed to form an anti-slip portion, and the foaming is performed by heat treatment. The heat treatment is preferably carried out during bag making, heat sealing treatment, drying box or infrared heat treatment. When subjected to heat treatment, it is possible to impart excellent anti-slip properties to the formed anti-slip part.

The thickness of the non-slip layer is preferably set to be 0.1 to 10 μm, more preferably 0.5 to 8 μm. If it is less than 0.1 μm, a sufficient anti-slip effect cannot be obtained. If it is larger than 10 μm, the blocking resistance of the coating material having the anti-slip layer is lowered.

The anti-slip laminate of the present invention preferably has a seal layer on the opposite surface of the anti-slip layer formed on at least one side. The seal layer can be used as a layer for adhering the base material by heat sealing or the like.

The sealing layer is preferably a layer containing a resin having a sealing property, and usable resins include LDPE, LLDPE, HDPE, polyethylene resin such as metallocene polyethylene, polypropylene resin, ethylene-vinyl acetate copolymer, ionomer. Resin, ethylene-acrylic acid copolymer, ethylene-ethyl acrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer Examples thereof include polymer, methylpentene polymer, acid-modified polyolefin resin obtained by modifying polyethylene or polypropylene with maleic acid or fumaric acid, and thermoplastic resin such as polystyrene resin. These resins may be used alone or in combination of two or more.

Films containing these resins or laminates thereof are formed by a dry laminating method, a wet laminating method, a non-solvent laminating method, a thermal laminating method, or the like, or a resin coating by an extrusion laminating process or a coating with a heat sealing agent, or It may be formed by laminating with a hot melt adhesive or the like. Further, it does not necessarily have to be on the entire surface, and may be only the portion to be sealed.

Examples of the film include polyethylene, polypropylene, a mixed resin of polyethylene and polypropylene, ethylene-vinyl acetate copolymer resin, ethylene-(meth)acrylic acid copolymer resin, ethylene-(meth)methyl acrylate copolymer resin, ethylene. Examples thereof include polyolefin films such as ethyl ((meth)acrylate) copolymer resin and ethylene-vinyl alcohol copolymer resin.

Examples of the resin that can be used for the resin coating by the extrusion laminating process and the hot melt adhesive include polyethylene resins such as LDPE, LLDPE and HDPE, polypropylene resins, ethylene-vinyl acetate copolymers, ionomer resins, ethylene-acrylic acid copolymers. , Ethylene-ethyl acrylate copolymer, ethylene-methyl acrylate copolymer, ethylene-methacrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-propylene copolymer, methyl pentene polymer, polyethylene and polypropylene Examples thereof include thermoplastic resins such as acid-modified polyolefin resins and polystyrene resins in which is modified with maleic acid or fumaric acid. These resins may be used alone or in combination of two or more kinds.

The thickness of the sealing layer is not particularly limited, but from the viewpoint of sealing property, cost, and productivity, the film is 2 to 200 μm, the resin coating by extrusion lamination is 1 to 100 μm, and the heat sealing agent is 0.1 in thickness. The thickness is preferably 10 to 10 μm, and 1 to 50 μm for coating the hot melt adhesive.

The non-slip laminate of the present invention may be provided with an adhesive layer. For example, it can be provided between the base material and another base material or between the base material and the seal layer. The adhesive layer is a layer formed by attaching an adhesive agent or an adhesive agent (including wax and hot melt) having adhesiveness or adhesiveness to the two layers. Examples of the resin for the adhesive layer include the above-mentioned resin having sealing property, urethane resin, butadiene resin, polyethyleneimine resin, isocyanate resin, chelate and the like. Further, a commercially available adhesive can be used. Further, it may be a one-component type adhesive in which the main agent and the curing agent are mixed, or a two-component type adhesive agent in which the main agent and the curing agent are different. In the case of a two-pack type adhesive, the mixing ratio of the base material and the curing agent is appropriately adjusted and mixed before use.

The anti-slip laminate of the present invention may be provided with other layers. For example, OPP film, ONY film, PET film, EVOH film, PVA film, cellophane film, barrier nylon film, stretched polyethylene film, (modified) polyacrylic acid coated film, PVA coated film, aluminum oxide, silicon oxide, etc. Vapor-deposited film obtained by vapor-depositing the inorganic oxide of the above on a base material such as biaxially stretched polyethylene terephthalate film, a transparent barrier film (K coat) obtained by coating PVDC (polyvinylidene chloride) on a base film such as OPP, ONY, PET, cellophane. , A barrier film in which an ethylene-vinyl alcohol copolymer resin is laminated so as to be sandwiched between OPP films or NY films, and the like, and these films are preferably provided on the other surface of the anti-slip layer.

The non-slip laminate of the present invention may be provided with a printing ink layer between arbitrary layers. A usual gravure ink can be used for the printing ink layer and can be appropriately selected according to the film substrate. From the viewpoint of printability and versatility, gravure inks such as urethane resin, vinyl chloride-vinyl acetate copolymer resin, nitrification cotton, polyamide resin, acrylic resin, chlorinated polypropylene resin, polyester resin are preferable, and these resins are independent. Alternatively, the gravure ink may be a combination of two or more kinds. When two or more colors of gravure ink are used, it is not necessary to use the same resin-based ink, and another resin-based ink can be used as appropriate.

As commercial products, LG-NT, TPH, VESTA, LRC-NT, KCNT, SYNA-S, LAMREK, LG-FK (all of which are manufactured by Tokyo Ink Co., Ltd.) can be used.

The anti-slip laminate of the present invention may have an anchor coat layer provided between the substrate and the anti-slip layer. The anchor coat layer may be transparent or can be formed using an anchor coat agent containing a coloring material, so that various color variations and color designs can be obtained.

The non-slip packaging bag of the present invention can be produced using the non-slip laminate. In one embodiment, a non-slip laminate having a seal layer on at least one side is superposed such that the seal layer is the innermost surface and the non-slip layer is the outermost surface, and the periphery of the superposed anti-slip laminate is By subjecting the end portion to a bag-like heat treatment, a packaging bag having an anti-slip layer on the outermost surface can be produced. The anti-slip layer may be provided on a part of the heat-treated part or may be provided on the entire part. Further, as one embodiment, when forming a spout or the like in the non-slip packaging bag, the non-slip layer may be provided only around the cutout portion (pick portion).

The heat treatment causes the anti-slip layer to foam. The heat treatment is preferably a heat seal treatment, a dry box or infrared heat treatment, and more preferably a heat seal treatment. These may be the conditions generally performed, and the heat sealing treatment is performed by heating at 190° C. for 1 second. In the case of a paper base material, heating is performed at 200° C. for 2 seconds. The heat sealing treatment is not particularly limited, and known methods such as bar sealing, rotating roll sealing, belt sealing, impulse sealing, high frequency sealing and ultrasonic sealing can be used. The treatment in the drying box is carried out under conditions such as 120° C. for 60 seconds and the infrared heating treatment under the conditions of 150° C. for 30 seconds.

The method for producing a non-slip packaging bag of the present invention comprises a step of preparing a base material, a step of applying a non-slip layer on at least one of the base materials, and the non-slip layer on the base material being the outermost surface. As such, including a step of forming a bag shape having an opening in at least one side, a step of containing the contents from the opening section, and a step of sealing the opening section, in a bag shape having the opening section. It is preferable that the anti-slip layer is formed by foaming the anti-slip layer by heat treatment during the step of molding and/or the step of sealing the opening.

The step of preparing the base material is preferably a base material having resistance to heat treatment, and more preferably a base material used for food may be prepared, but in consideration of mechanical strength and dimensional stability, It is preferable to prepare the appropriate one. Further, a paper base material can also be preferably used. In order to improve the adhesion on the surface where the anti-slip layer is formed, the film surface is subjected to corona treatment, low temperature plasma treatment, flame treatment, solvent treatment, coat treatment, etc. Preferably.

The step of applying a non-slip layer on at least one side of the substrate is a known anti-slip portion forming coating liquid is applied to the substrate by a known printing process or a process such as coating, spraying, dipping, etc. And Examples of the printing process include a silk screen printing process, a gravure printing process, an offset printing process, a flexo printing process, a roller coater process, a brush coating process, a spray process, a knife jet coater process and the like. Among them, at least one selected from a gravure printing process and a flexo printing process is preferably used in terms of high quality and productivity, a printing process by a gravure printing process is more preferable, and a gravure printing process using a multicolor gravure printing machine is particularly preferable. Is more preferable.

By the printing step, the anti-slip layer can be formed on the entire surface of the base material, but the anti-slip layer can be easily formed partially and the cost can be reduced. It is easy to design only where you want to clearly represent and to distinguish it from other parts clearly.

Further, in addition to the step of applying the anti-slip layer on at least one side of the substrate, the step of forming a seal layer, a printing ink layer, an anchor coat layer, an adhesive layer and other layers may be included.

Examples of the step of forming the seal layer include a known step of sticking a sealant film and a step of forming by resin coating by extrusion laminating. Known processes such as printing or coating using a heat sealing agent, spraying, dipping and the like are preferable, and a coating process is particularly preferable. Further, a coating process by a gravure printing process using a multicolor gravure printing machine is preferable. This allows the seal layer to be formed in-line with the anti-slip layer in one pass. Further, the seal layers to be applied may be two or more layers, and the seal layers may be the same, or may be seal layers having different compositions. As a result, since the sealing layer can be a multilayer or a sealing layer having a different composition, the heat sealing strength can be easily controlled and the heat sealing can be performed at low cost.

The step of forming the printing ink layer is also preferably a known printing or coating, spraying, dipping or the like step, and particularly preferably a coating step. Further, a coating process by a gravure printing process using a multicolor gravure printing machine is preferable. As a result, the printing ink layer can be freely provided on the opposite surface of the anti-slip layer, between the substrate and the anti-slip layer, or between the substrate and the seal layer.

The step of forming the anchor coat layer is also preferably a known step such as printing or coating, spraying, dipping, etc., and particularly preferably a coating step. Further, a coating process by a gravure printing process using a multicolor gravure printing machine is preferable. Accordingly, the anchor coat layer can be freely provided on the opposite surface of the anti-slip layer, between the base material and the anti-slip layer, or between the base material and the seal layer.

The step of forming a bag shape having an opening on at least one of the non-slip layers on the base material as the outermost surface, as a packaging bag, a two-way seal, a three-way seal, a four-way seal, a pillow seal, a standing pouch, It may be any process capable of forming a well-known packaging bag such as envelope sticking, gusset, fusing seal, tube, caramel packaging, overhold, fin seal, steamed bun packaging, twist, rocket and the like.

The step of accommodating the contents from the opening may be such that the contents can be accommodated from at least one of the openings, and may be accommodated through a human hand, but the contents are accommodated using a machine such as an automatic device. May be. These steps may be appropriately selected depending on the type, form, size, quantity, packaging bag to be stored, equipment, environment, etc. of the contents.

The step of sealing the opening is preferably a sealing step performed by heat treatment by heat sealing. Further, a sealing step performed by fitting a lid or the like to the opening may be used.

The heat treatment by the heat sealing may be carried out under the conditions generally used, for example, by heating at 190° C. for 1 second. In the case of a paper base material, heating is performed at 200° C. for 2 seconds. The heat sealing is not particularly limited, and known methods such as bar sealing, rotating roll sealing, belt sealing, impulse sealing, high frequency sealing and ultrasonic sealing can be used.

In the manufacturing method of the present invention, heat treatment is performed during the step of molding into a bag shape having the opening and/or the step of sealing the opening, thereby foaming the anti-slip layer to prevent the anti-slip part. Is preferably formed. As a result, a packaging bag that has anti-slip parts on only one of the body, bottom, or head, or a packaging bag that has anti-slip parts on all parts of the body, bottom, and head, is formed. it can.

According to the manufacturing method of the present invention, after the step of storing the contents, the non-slip portion can be formed at the same time as the sealing to form the non-slip packaging bag, but the opening before containing the contents The non-slip portion can be formed when the bag is formed into a bag having parts, and then the content can be housed and sealed to produce a non-slip packaging bag.

In the method of manufacturing the packaging bag, heat treatment by heat sealing is preferable as a method of forming the non-slip portion, and the anti-slip layer is foamed by the heat treatment by the heat sealing. The heat sealing may be performed under the conditions generally used, for example, by heating at 190° C. for 1 second. In the case of a paper base material, heating is performed at 200° C. for 2 seconds. The heat sealing is not particularly limited, and known methods such as bar sealing, rotating roll sealing, belt sealing, impulse sealing, high frequency sealing and ultrasonic sealing can be used. By doing so, the portion of the anti-slip layer is foamed to form the anti-slip portion. The formed anti-slip portion is generally thick, and has high holding properties with fingers and holding properties such as a picked portion with fingers, a sufficient anti-slip effect is exhibited, and cutting is facilitated.

The method for producing a non-slip packaging container of the present invention comprises a step of preparing a paper base material, a step of applying an anti-slip layer on one side of the paper base material, and a non-slip layer on the paper base material being the outermost surface. And a step of forming a packaging container having an opening in at least one side thereof to form a non-slip portion by foaming the non-slip layer by heat treatment during the step of forming the packaging container. Preferably.

The step of preparing the paper base material is preferably a paper base material having resistance to heat treatment, and more preferably a paper base material used for food may be prepared, but mechanical strength and dimensional stability are considered. And prepare the appropriate one. The basis weight of the paper substrate is preferably in the range of 30~600g / ^{m 2,} more preferably in the range of 100 to 500 g / ^{m 2,} more preferably in the range of 150 and 400 / ^{m 2.} If the basis weight of the paper base material is too small, heat resistance and strength may be insufficient, and if the basis weight is too large, the processability may deteriorate. The thickness of the paper substrate is usually in the range of 50 μm to 2 mm, preferably in the range of 100 μm to 1.5 mm, more preferably in the range of 150 to 800 μm, and further preferably in the range of 200 to 600 μm.

The step of applying an anti-slip layer on one side of the paper substrate is performed by applying a coating solution for forming an anti-slip portion to a film substrate by a known printing process or a process such as coating, spraying, dipping, etc. Layer. Examples of the printing process include a silk screen printing process, a gravure printing process, an offset printing process, a flexo printing process, a roller coater process, a brush coating process, a spray process, a knife jet coater process and the like. Among them, at least one selected from a gravure printing process and a flexo printing process is preferably used in terms of high quality and productivity, a printing process by a gravure printing process is more preferable, and a gravure printing process using a multicolor gravure printing machine is particularly preferable. Is more preferable.

By the printing process, the anti-slip layer can be formed on the entire surface of the paper base material, but the anti-slip layer can be easily formed partially and the cost can be reduced. As a result, it is easy to design only where you want to express clearly and to distinguish it clearly from other parts.

Further, in addition to the step of applying the non-slip layer on one side of the paper base material, the step of forming a seal layer, a printing ink layer, an anchor coat layer, an adhesive layer and other layers may be included.

Examples of the step of forming the seal layer include a known step of sticking a sealant film and a step of forming by resin coating by extrusion laminating. Known processes such as printing or coating using a heat sealing agent, spraying, dipping and the like are preferable, and a coating process is particularly preferable. Further, a coating process by a gravure printing process using a multicolor gravure printing machine is preferable. This allows the seal layer to be formed in-line with the anti-slip layer in one pass. Further, the seal layers to be applied may be two or more layers, and the seal layers may be the same, or may be seal layers having different compositions. As a result, since the sealing layer can be a multilayer or a sealing layer having a different composition, the heat sealing strength can be easily controlled and the heat sealing can be performed at low cost.

The step of forming the printing ink layer is also preferably a known printing or coating, spraying, dipping or the like step, and particularly preferably a coating step. Further, a coating process by a gravure printing process using a multicolor gravure printing machine is preferable. Accordingly, the printing ink layer can be freely provided on the opposite surface of the anti-slip layer, between the paper base material and the anti-slip layer, or between the paper base material and the seal layer.

The step of forming the anchor coat layer is also preferably a known step such as printing or coating, spraying, dipping, etc., and particularly preferably a coating step. Further, a coating process by a gravure printing process using a multicolor gravure printing machine is preferable. As a result, the anchor coat layer can be freely provided on the opposite surface of the anti-slip layer, between the paper base material and the anti-slip layer, or between the paper base material and the seal layer.

The step of forming a packaging container having an opening on at least one side so that the non-slip layer on the paper base material is the outermost surface is a cup, tray, bottle, brick, container, box, case, pan as a packaging container. Any process can be used as long as it can form a well-known packaging container such as a cover, a lid, and a cap.

In the manufacturing method of the present invention, it is preferable that the non-slip portion is formed by foaming the anti-slip layer by heat treatment during the step of forming the packaging container.
During the heat treatment during the step of molding into a packaging container having the opening, only the portion to be heat treated for molding into a packaging container may be coated with a non-slip layer, or after molding into a packaging container, At the time of heat treatment, a non-slip layer may be applied on the entire surface.

In the method for manufacturing the packaging container, the heat treatment is preferably heat treatment by heat sealing, and the antislip layer foams by the heat treatment by heat sealing. The heat sealing may be performed under the conditions generally used, for example, heating at 200° C. for 2 seconds. The heat sealing is not particularly limited, and known methods such as bar sealing, rotating roll sealing, belt sealing, impulse sealing, high frequency sealing and ultrasonic sealing can be used. By doing so, the portion of the anti-slip layer is foamed to form the anti-slip portion. The formed anti-slip portion is generally thick, and has high holding properties with fingers and holding properties such as a picked portion with fingers, and a sufficient anti-slip effect is exhibited. Further, the heat treatment may be a dry box, infrared heat treatment, or the like. The treatment in the drying box is carried out under conditions such as 120° C. for 60 seconds and the infrared heating treatment under the conditions of 150° C. for 30 seconds. By doing so, after the heat treatment by heat sealing is performed, the non-slip portion can be further formed in the portion other than the seal layer.

The coating liquid for forming a non-slip portion of the present invention is a coating liquid for forming a non-slip portion used for a non-slip laminate having a non-slip layer on at least one of base materials. The coating liquid preferably contains 1 to 50% by mass of the heat-expandable microcapsules, 1 to 25% by mass of the thermoplastic resin, and 45 to 95% by mass of the solvent.

The heat-expandable microcapsules are preferably contained in the non-slip portion forming coating liquid in an amount of 1 to 50% by mass, more preferably 3 to 40% by mass, and further preferably 5 to 30% by mass. .. If it is less than 1% by mass, the anti-slip effect will be reduced, and if it exceeds 50% by mass, the adhesion to the substrate will be poor.

The heat-expandable microcapsule is a microcapsule based on a thermoplastic resin such as vinyl chloride resin, ethylene vinyl acetate resin, acrylic resin, or the like, and an aliphatic carbonization such as isobutane, butane, isopentane, or n-pentane. It contains hydrogen, and the aliphatic hydrocarbon contained therein is vaporized by heating to expand the microcapsules. The particle size of the microcapsules is 3 to 20 μm, and the expansion ratio is 4 to 10 times.

The thermoplastic resin is preferably contained in the non-slip part forming coating liquid in an amount of 1 to 25% by mass, more preferably 5 to 20% by mass. If it is less than 1% by mass, the adhesion to the substrate is poor, and if it exceeds 25% by mass, the fluidity of the ink is poor, and the suitability for ink production is poor.

The thermoplastic resin, shellac, rosins, rosin-modified maleic acid resin, rosin-modified phenolic resin, nitrification cotton, cellulose acetate, cellulose acetyl propionate, cellulose acetyl butyrate, chlorinated rubber, cyclized rubber, polyethylene resin, Polypropylene resin, vinyl chloride resin, polyamide resin, vinyl chloride-vinyl acetate copolymer, ethylene-(meth)acrylic acid copolymer, polyester resin, polyvinylidene chloride resin, vinyl acetate resin, ketone resin, butyral resin, chlorination Polypropylene resin, chlorinated polyethylene resin, chlorinated ethylene vinyl acetate resin, ethylene vinyl acetate resin, (meth)acrylic resin, urethane resin, styrene maleic acid resin, polystyrene resin, polyacetal resin, polycarbonate resin, casein, alkyd resin, acrylonitrile resin , Acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, polysulfone resin, polyether resin, polyethersulfone resin, polyetherketone resin, modified polyphenylene ether resin, polyphenylene sulfone resin, polyimide resin, polyamideimide resin, Amorphous polyarylate resin, polyether ether ketone resin, acrylic emulsion, urethane emulsion, polyvinyl alcohol resin, ethylene-vinyl alcohol resin, polylactic acid and the like are preferable. Among them, nitrified cotton, cellulose acetylpropionate, polyamide resin, vinyl chloride-vinyl acetate copolymer, polyester resin, chlorinated polypropylene resin, (meth)acrylic resin, urethane resin, acrylic emulsion, urethane emulsion, etc. More preferable. These resins may be used alone or in combination of two or more.
As a commercially available product, LG-FK R medium, TPH medium, VESTA medium, LRC-NT medium, KCNT medium, SYNA-S medium, LAMREK medium (above, Tokyo Ink Co., Ltd.) can be used. However, LG-FK R medium is more preferable.

The solvent is preferably contained in the non-slip part forming coating liquid in an amount of 45 to 95% by mass, more preferably 50 to 90% by mass. If it is less than 45% by mass, the fluidity of the ink will be poor and the ink production suitability will be poor. If it exceeds 95% by mass, the ink film thickness will be locally non-uniform, and irregular density (swimming) Phenomenon may occur.

The solvent disperses the thermally expandable microcapsules and the thermoplastic resin in the solvent. The solvent may be an organic solvent type solvent. For example, toluene, aromatic hydrocarbon solvents such as xylene, hexane, cyclohexane, methylcyclohexane, aliphatic hydrocarbon solvents such as ethylcyclohexane, methanol, ethanol, isopropyl alcohol, normal propyl alcohol, 1-butanol, 2-butanol, Alcohol solvents such as isobutanol and tert-butanol, ethyl acetate, n-propyl acetate, isopropyl acetate, butyl acetate, isobutyl acetate, sec-butyl acetate, ester solvents such as tert-butyl acetate, acetone, methyl ethyl ketone, methyl isobutyl. Ketones, ketone solvents such as cyclohexanone, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol dimethyl ether, ethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether Examples thereof include glycol ether solvents and esterified products thereof, and as the esterified product, those mainly acetated are selected, for example, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, diethylene glycol. Examples include monoethyl ether acetate, diethylene glycol monobutyl ether acetate, propylene glycol monomethyl ether acetate, and propylene glycol monoethyl ether acetate. Among them, toluene, ethyl acetate, n-propyl acetate, isopropyl alcohol, propylene glycol monomethyl ether, methyl ethyl ketone and the like are more preferable from the viewpoint of printability and versatility. These may be used alone or in combination of two or more.

The coating liquid for forming the non-slip portion has design properties, intended use, physical properties required such as hue, stability of the coating liquid, and for the purpose of improving printability, a coloring material, an inorganic filler, an organic filler, A defoaming agent, a leveling agent, an antiblocking agent, a wax, a pigment dispersant, an antistatic agent, a slip agent, a plasticizer, a tackifier, a solvent and the like can also be contained. Any well-known and commonly used one can be appropriately selected within a range that does not impair the foamability and the characteristics of the coating liquid.

The coloring material may contain a pigment, a dye or a mixture thereof.
Examples of the pigment include titanium oxide, red iron oxide, barium sulfate, calcium carbonate, silica, zinc oxide, zinc sulfide, mica, talc, pearl, aluminum, carbon black and other inorganic pigments, phthalocyanine-based, insoluble azo-based, condensed azo-based pigments. Examples include organic pigments such as pigments, dioxazine pigments, anthraquinone pigments, quinacridone pigments, perylene pigments, perinone pigments, thioindigo pigments, and various other fluorescent pigments, metal powder pigments, and extender pigments. You may use these pigments individually or in combination of 2 or more types. As the dye, those which are dissolved or dispersed in a solvent are preferable, and they may be used alone or in combination of two or more kinds. Above all, it is preferable to use a pigment from the viewpoint of durability.

The method for producing the anti-slip part forming coating liquid of the present invention comprises a heat-expandable microcapsule, a thermoplastic resin, a solvent, other inorganic compounds, and a dispersion step of uniformly dispersing a mixed liquid containing various additives. It can be manufactured by a known method. The dispersing step includes various agitators or dispersers such as a dissolver, roll mill, ball mill, bead mill, sand mill, attritor, paint shaker, agitator, Henschel mixer, colloid mill, pearl mill, ultrasonic homogenizer, wet jet mill, kneader, and homomixer. Is a process of using. The dispersion step may be a step in which these devices are used alone or in combination of two or more kinds. The dispersion process when using the bead mill is not particularly limited, but may be a pass system or a circulation system, and the pass system may be a multi-pass system in which the dispersion is passed a plurality of times. The average particle size in the dispersion is adjusted as appropriate by the bead mill's bead separation mechanism, bead type, bead particle size, bead filling rate, shape and number of stirring blades, rotation speed, dispersion viscosity, discharge rate, premix time, etc. it can. When the coating liquid contains air bubbles or coarse particles, the removal step may be performed using a known filter, centrifuge or the like in order to reduce printability and print quality.

The viscosity of the anti-slip portion forming coating liquid is not particularly limited as long as it does not hinder printing. Considering the production suitability and handling of the coating liquid, it is preferably 10 to 1,000 mPa·s at 25°C. The viscosity is a value measured using a commercially available viscometer such as Brookfield viscometer.

The anti-slip part forming coating solution can be applied as it is, but it can be used by adjusting it to a desired viscosity by diluting it with a diluting solvent according to the application conditions and the application effect. In this case, the viscosity is preferably 10 to 40 seconds at 25° C. with Zahn Cup #3 (manufactured by Sogo Co., Ltd.).

The diluting solvent may be any solvent as long as it can be used by adjusting the viscosity and the concentration of the coating liquid, examples thereof include the solvent, and commercially available solvents can be used without any particular limitation. Examples of commercially available products include PU533 solvent, PU515 solvent, SL9164 solvent, SL9170 solvent (all of which are manufactured by Tokyo Ink Co., Ltd.).

At the time of printing, a curing agent can be added to the coating liquid, if necessary. In this case, the heat resistance, water resistance, adhesion, etc. of the printed matter are improved, so that a laminate having resistance even under conditions such as boiling and retort heating can be obtained. Examples of the curing agent include tolylene diisocyanate, 4,4′-diphenylmethane diisocyanate, hexamethylene diisocyanate, xylylene diisocyanate, isophorone diisocyanate, 1,3-bis(isocyanatomethyl)cyclohexane, 4,4′-dicyclohexyl diisocyanate, pentane. Examples thereof include polyisocyanate curing agents such as aliphatic diisocyanates such as -1,5-diisocyanate and modified products thereof such as trimethylolpropane trimer, isocyanurate body, buret body, and allophanate body. It is possible to mix and use more than one kind.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples, but the present invention is not limited thereto. In addition, the part in an Example and a comparative example represents a mass part, and% represents the mass %.

[Preparation of anti-slip coating liquid]
(Example 1)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 50 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 40 parts, n-propyl acetate 5 Parts, and 5 parts of methyl ethyl ketone were charged, stirred with a disper, and uniformly dispersed to prepare a non-slip part forming coating liquid 1 (abbreviation: coating liquid 1).

(Example 2)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 58 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 2 parts, n-propyl acetate 15 Parts, 15 parts of methyl ethyl ketone, and 10 parts of isopropyl alcohol were charged, stirred with a disper and uniformly dispersed to prepare a non-slip part forming coating liquid 2 (abbreviation: coating liquid 2).

(Example 3)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 5 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 25 parts, n-propyl acetate 25 Parts, 25 parts of methyl ethyl ketone, and 20 parts of isopropyl alcohol were charged, stirred with a disper, and uniformly dispersed to prepare a non-slip part forming coating liquid 3 (abbreviation: coating liquid 3).

(Example 4)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 20 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 30 parts, n-propyl acetate 20 Parts, 15 parts of methyl ethyl ketone, and 15 parts of isopropyl alcohol were charged, stirred with a disper, and uniformly dispersed to prepare a non-slip part forming coating liquid 4 (abbreviation: coating liquid 4).

(Example 5)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 60 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 25 parts, n-propyl acetate 5 Parts, 5 parts of methyl ethyl ketone, and 5 parts of isopropyl alcohol were charged, stirred with a disper, and uniformly dispersed to prepare a non-slip part forming coating liquid 5 (abbreviation: coating liquid 5).

(Example 6)
15 parts urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.), 5 parts heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.), n-propyl acetate 30 Parts, 25 parts of methyl ethyl ketone, and 25 parts of isopropyl alcohol were charged, stirred with a disper and uniformly dispersed to prepare a non-slip part forming coating liquid 6 (abbreviation: coating liquid 6).

(Comparative Example 1)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 10 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 60 parts, n-propyl acetate 10 Parts, 10 parts of methyl ethyl ketone, and 10 parts of isopropyl alcohol were charged, stirred with a disper and uniformly dispersed to prepare a non-slip part forming coating liquid 7 (abbreviation: coating liquid 7).

(Comparative example 2)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 70 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 0.5 part, acetic acid n- 15 parts of propyl, 10 parts of methyl ethyl ketone, and 4.5 parts of isopropyl alcohol were charged, stirred with a disper and uniformly dispersed to prepare a non-slip part forming coating liquid 8 (abbreviation: coating liquid 8).

(Comparative example 3)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 1.5 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 50 parts, acetic acid n- 20 parts of propyl, 18.5 parts of methyl ethyl ketone, and 10 parts of isopropyl alcohol were charged, stirred with a disper and uniformly dispersed to prepare a non-slip part forming coating liquid 9 (abbreviation: coating liquid 9).

(Comparative example 4)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 99 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 1 part were charged, and at a disper. Although the mixture was stirred, the production was stopped because the viscosity was extremely high and it was difficult to disperse it uniformly.

(Comparative example 5)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 50 parts, heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.) 50 parts were charged, and at a disper. Although the mixture was stirred, the production was stopped because the viscosity was extremely high and it was difficult to disperse it uniformly.

(Comparative example 6)
8.5 parts of urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.), 2 parts of heat-expandable microcapsules (Microsphere, manufactured by Matsumoto Yushi-Seiyaku Co., Ltd.), acetic acid n- 35 parts of propyl, 30 parts of methyl ethyl ketone, and 24.5 parts of isopropyl alcohol were charged, stirred with a disper, and uniformly dispersed to prepare a non-slip part forming coating liquid 10 (abbreviation: coating liquid 10).

(Comparative Example 7)
Urethane-based medium (LG-FK R medium, solid content 30%, manufactured by Tokyo Ink Co., Ltd.) 45 parts, silica (ACEMATT HK440, secondary particle size 14.5 μm, manufactured by Evonik) 30 parts, n-propyl acetate 10 Parts, 10 parts of methyl ethyl ketone, and 5 parts of isopropyl alcohol were charged, stirred with a disper and uniformly dispersed to prepare a non-slip part forming coating liquid 11 (abbreviation: coating liquid 11).

[Preparation of non-slip laminate]
(Example 7)
LG-FK630R white C (abbreviation: white ink, Tokyo ink) is used as a first unit on a 12 μm double-sided corona-treated PET film (FE2002, manufactured by Futamura Chemical Co., Ltd., abbreviated as PET) using a 5-color gravure printing machine. Co., Ltd.), inverted, and the coating liquid 1 in which the viscosity was adjusted to 16 seconds (25° C., Zahn cup #3) with the PU515 solvent (Tokyo Ink Co., Ltd.) in the second and third units. Printed twice. Then, the coating liquid 1 is printed on the mat-treated surface of a 7 μm aluminum foil (1N30, manufactured by Toyo Aluminum Co., Ltd., abbreviation: AL) by a two-component curing type urethane adhesive by a dry lamination method (abbreviation: DL). Then, a nylon film (Emblem ONMB-RT, manufactured by Unitika Ltd., abbreviated as NY) was laminated on the mirror surface of the aluminum foil by a dry lamination method. A 100 μm biaxially oriented polypropylene film (ZK99S, manufactured by Toray Film Co., Ltd., abbreviated as CPP) was laminated on the surface of the nylon film by a dry lamination method, and aged at 45° C. for 5 days to obtain a laminate 1 Got Coating Liquid 1 and the coating amount of the white ink, respectively 3.1 g ^/ m 2, it was 1.3 g / ^{m 2.} The structure of the laminate 1 was “coating liquid 1/coating liquid 1/PET/white ink/DL/AL/DL/NY/DL/CPP”. In addition, the coating liquid 1 was applied to a sealing portion including a notch portion (cutout portion) by heat sealing to form a non-slip layer. Further, the coating liquid 1 was applied in the same coating amount to a portion to be heat-sealed at the time of bag making and sealing separately to obtain a laminated body 1′ having a non-slip layer formed.

(Examples 8-12 and Comparative Examples 8-12)
The coating liquid 1 used in Example 7 was changed to the coating liquids 2 to 11 as shown in Tables 1 and 2, and laminates 2 to 11 were obtained in the same manner as in Example 7. The coating amounts of the coating liquids 2 to 11 and the coating amount of the white ink are shown in Table 1 and Table 2. Also, in the same manner as in Example 7, laminated bodies 2'to 11' were obtained.

(Example 13)
Using a 5-color gravure printing machine, a 15 μm double-sided corona-treated nylon film (Emblem ONBC-15, manufactured by Unitika Ltd., abbreviation: NY15) was used as a first unit to measure LG-FK630R white C (abbreviation: white ink). , Manufactured by Tokyo Ink Co., Ltd., inverted, and the second and third units were adjusted in viscosity with PU515 solvent (made by Tokyo Ink Co., Ltd.) to 16 seconds (25° C., Zahn cup #3). Liquid 1 was printed twice. Next, a 100 μm biaxially stretched polypropylene film (ZK99S, manufactured by Toray Film Co., Ltd., abbreviated as CPP) was laminated with a two-component curing type urethane adhesive by a dry lamination method (abbreviated as DL), and the temperature was 45° C. Then, the laminate 12 was obtained by aging for 5 days. Coating Liquid 1 and the coating amount of the white ink, respectively 3.1 g ^/ m 2, it was 1.3 g / ^{m 2.} The structure of the laminate 12 was “coating liquid 1/coating liquid 1/NY15/white ink/DL/CPP”. Further, a laminated body 12′ was obtained in the same manner as in Example 7.

(Example 14)
Using a 5-color gravure printing machine, a 20 μm double-sided corona-treated biaxially stretched polypropylene film (OP U-2, manufactured by Mitsui Chemicals Tohcello Co., Ltd., abbreviation: OPP) was used as the first unit, LG-FK630R White C. (Abbreviated name: white ink, manufactured by Tokyo Ink Co., Ltd.), inverted, and second and third units with PU515 solvent (manufactured by Tokyo Ink Co., Ltd.) for 16 seconds (25° C., Zahn cup #3). The coating liquid 1 adjusted to No. 2 was printed twice. Then, a 25 μm biaxially oriented polypropylene film (CP GLC, manufactured by Mitsui Chemicals Tohcello Co., Ltd., abbreviated as CPP25) was laminated with a two-component curing type urethane adhesive by a dry lamination method (abbreviated as DL), and 45 Aged at 35° C. for 35 days to obtain a laminated body 13. Coating Liquid 1 and the coating amount of the white ink, respectively ^{3 g} / m 2, it was 1.3 g / ^{m 2.} The structure of the laminated body 13 was “coating liquid 1/coating liquid 1/OPP/white ink/DL/CPP 25”. Further, a laminated body 13′ was obtained in the same manner as in Example 7.

(Example 15)
The double-press printing performed in Example 7 was changed to the single-press printing to obtain a laminate 14. Coating Liquid 1 and the coating amount of the white ink, respectively 0.5 g ^/ m 2, it was 1.1 g / ^{m 2.} The structure of the laminate 14 was “coating liquid 1/PET/white ink/DL/AL/DL/NY/DL/CPP”. Further, a laminated body 14′ was obtained in the same manner as in Example 7.

(Example 16)
An anchor coating agent (UL-3, Tokyo Ink) is used as the first unit on a polyethylene coated cup base paper (manufactured by Nippon Paper Industries Co., Ltd., abbreviated as cup base paper) having a basis weight of 230 g/m ² using a 5-color gravure printing machine. Co., Ltd., abbreviation: Anchor agent, coating liquid 1 whose viscosity was adjusted to 16 seconds (25°C, Zahn cup #3) with PU515 solvent (Tokyo Ink Co., Ltd.) in the second and third units. Was printed twice and wound up to obtain a laminate 15. The coating amount of the coating liquid 1 was 3.4 g/m ² . The structure of the laminated body 15 was “coating liquid 1/coating liquid 1/anchor agent/cup base paper”. The coating liquid 1 was applied to the entire surface including the heat-sealed portion to form a non-slip layer.

(Example 17)
Using a 5-color gravure printing machine, polyethylene coated paper with a basis weight of 230 g/m ² (manufactured by Hokuetsu Paper Mills, abbreviated as PE coated paper) was used as an anchor coating agent (UL-3, Tokyo Ink) in the first unit. An abbreviation "anchor agent" manufactured by Co., Ltd., and a coating solution 1 whose viscosity was adjusted to 16 seconds (25°C, Zahn cup #3) with a PU515 solvent (manufactured by Tokyo Ink Co., Ltd.) in the second and third units. The laminate 16 was obtained by printing twice and winding up. The coating amount of the coating liquid 1 was 3.3 g/m ² . The constitution of the laminate 16 was “coating liquid 1/coating liquid 1/anchor agent/PE coated paper”. In addition, the coating liquid 1 was applied to a heat-sealed portion including a cutout portion to form a non-slip layer.

(Comparative Example 13)
Only the white ink was printed with the first unit of Example 7 to obtain a laminate 17. The amount of white ink applied was 1.3 g/m ² . The structure of the laminate 17 was “PET/white ink/DL/AL/DL/NY/DL/CPP”.

For each laminate, printability (evaluation of swimming) and substrate adhesion were evaluated and are shown in Table 1 and Table 2, respectively.

<Printability (evaluation of swimming)>
The state of the printed surface of the anti-slip part forming coating liquid of the produced anti-slip laminate was visually observed and evaluated. The printability was judged to be good (the swimming phenomenon did not occur) when the print surface had no irregular shading. The lightness and darkness of the printed surface was evaluated in four grades: ⊚: no at all, ∘: slightly visible, Δ: slightly visible (no problem in practical use), ×: clearly visible.

<Substrate adhesion>
Adhesive tape (cellophane tape, 28 mm, manufactured by Nichiban Co., Ltd.) was attached to the printed surface of the manufactured anti-slip laminate, and after being strongly rubbed 5 times with the thumb, the adhesive tape was slowly peeled off, and rapidly from the middle. When peeled off, the degree to which the printed surface was taken off by the adhesive tape was visually observed and evaluated. It was judged that the adhesiveness to the base material was good when the adhesive tape was less likely to be taken. The adhesive tape is taken in a good condition: ⊚: none, ◯: slightly taken (0 to less than 10% as the peeled area per area), Δ: slightly taken (10% to less than 20% as the peeled area per area) , Practically no problem), x: Most of them were taken (20% or more of the peeled area per area), and the evaluation was made in four levels.

A packaging bag was prepared as follows, and the non-slip property was evaluated, and the results are shown in Table 1 and Table 2, respectively.

[Production of packaging bag 1]
<Non-slip property (applied during sealing)>
The laminated body 1 is laminated so that the sealing layer is the innermost surface, and heat-sealed at 190° C. for 1 second to obtain a bag-like pouch having an opening, and the pouch is used as a content. , Water was filled, and the opening was sealed by heat sealing under the condition of 190° C. for 1 second. At this time, the non-slip layer formed in the heat-sealed portion including the notch portion (cutout portion) was foamed, and the packaging bag 1 having the non-slip portion formed on the head was produced.
With respect to the packaging bag 1 containing water, hold the non-slip part (picking part) formed on the head with fingers, and perform the cutting work from the pre-provided cut part without slipping the fingers from the non-slip part. Those that could be held were judged to have good non-slip properties. For the five testers, the anti-slip part was evaluated in three grades: ◯: all 5 people can hold, Δ: 3 people can hold (no problem in practice), ×: all 5 people cannot hold.

With respect to the laminates 2 to 15 and 17, packaging bags 2 to 16 were produced in the same manner. Similarly, the non-slip property was evaluated. In addition, about the laminated body 15, it performed on the conditions of 200 degreeC and 2 second.

[Production of packaging bag 2]
<Non-slip property (applied during bag making/sealing)>
The laminated body 1'was superposed so that the seal layer was the innermost surface, and adhered by heat sealing under the condition of 190°C for 1 second to obtain a bag-like pouch having an opening. At this time, an anti-slip layer was formed on the heat seal portion, the anti-slip layer foamed, and the anti-slip portion was formed on the body and the bottom. The bag-shaped pouch was filled with water as a content, and the opening was sealed by heat sealing under the condition of 190° C. for 1 second. At this time, a non-slip layer was also formed on the heat-sealed portion, the anti-slip layer was foamed, and a packaging bag 17 having anti-slip portions on the body, bottom and head was produced.
With respect to the packaging bag 17 containing water, a non-slip portion (pick portion) formed on the head near the cut-out portion and a non-slip portion (handle portion) formed on the body portion are provided with both fingers. It was judged that the non-slip property was good if it could be held without slipping both fingers from both the picking part and the holding part by performing the cutting work from the cutting part. For the five testers, the anti-slip part was evaluated in three grades: ◯: all 5 people can hold, Δ: 3 people can hold (no problem in practice), ×: all 5 people cannot hold.

The packaging bags 18 to 30 were produced in the same manner for the laminated bodies 2'to 14'. Similarly, the non-slip property was evaluated.

[Production of packaging bag 3]
<Non-slip property (added during bag making)>
The laminated body 16 was laminated so that the polyethylene-coated surface would be the innermost surface, and adhered by heat sealing under the conditions of 200° C. and 2 seconds to obtain a bag-shaped packaging bag having an opening. At this time, an anti-slip layer was formed on the heat seal portion, the anti-slip layer foamed, and the anti-slip portion was formed on the body and the bottom. 100 g of croquette was put into the bag-shaped packaging bag as a content to prepare a packaging bag 31.
With respect to the packaging bag 31 containing the croquette, the anti-slip portion formed near the cut-out portion that is provided in advance is picked with both fingers, the cutting work is performed from the cut-out portions, and the both fingers slip from the both cut-out portions. It was judged that the non-slip property was good if it could be held without any damage. For the five testers, the anti-slip part was evaluated in three grades: ◯: all 5 people can hold, Δ: 3 people can hold (no problem in practice), ×: all 5 people cannot hold.

The polyethylene-coated paper used in the laminate 16 was laminated so that the polyethylene-coated surface would be the innermost surface, and heat-sealed at 200° C. for 2 seconds to obtain a bag-shaped packaging bag having an opening. It was 100 g of croquette was put into the bag-shaped packaging bag as a content to prepare a packaging bag 32. The non-slip property was evaluated in the same manner as the laminate 16.

A packaging container was prepared as follows, and the non-slip property was evaluated, and shown in Table 1 and Table 2, respectively.

[Preparation of packaging container 1]
<Non-slip property (applied during molding)>
The laminated body 15 was laminated so that the polyethylene coated surface would be the innermost surface, and adhered by heat sealing at 200° C. for 2 seconds to obtain a cup-shaped packaging container. At this time, an anti-slip layer was formed on the heat seal portion, the anti-slip layer foamed, and the anti-slip portion was formed on the heat seal portion. Water was poured as a content into this cup-shaped packaging container to prepare a packaging container 1.
Regarding the packaging container 1 containing the water, the formed non-slip portion was lifted with fingers, and the non-slip property was judged to be good if the non-slip portion could hold the non-slip portion. For the five testers, the anti-slip part was evaluated in three grades: ◯: all 5 people can hold, Δ: 3 people can hold (no problem in practice), ×: all 5 people cannot hold.

The polyethylene-coated cup base paper used in the laminate 15 was laminated so that the polyethylene-coated surface was the innermost surface, and heat-sealed at 200° C. for 2 seconds to obtain a cup-shaped packaging container. Water was poured into the cup-shaped packaging container as a content to prepare the packaging container 2, and the non-slip property was evaluated in the same manner as the laminate 15.

[Production of packaging container 2]
<Non-slip property (applied after molding)>
The laminated body 15 was laminated so that the polyethylene coated surface would be the innermost surface, and adhered by heat sealing at 200° C. for 2 seconds to obtain a cup-shaped packaging container. At this time, an anti-slip layer was formed on the heat seal portion, the anti-slip layer foamed, and the anti-slip portion was formed on the heat seal portion. Furthermore, this cup-shaped packaging container was put in a dry box and heat-treated at 120° C. for 60 seconds. At this time, the non-slip layer other than the heat-sealed portion foamed, and the anti-slip portion was formed on the entire body. Water was poured into this cup-shaped packaging container to prepare a packaging container 3.
With respect to the packaging container 3 containing water, the formed non-slip portion was lifted with fingers, and the non-slip property was judged to be good if the non-slip portion could be held without slipping. For the five testers, the anti-slip part was evaluated in three grades: ◯: all 5 people can hold, Δ: 3 people can hold (no problem in practice), ×: all 5 people cannot hold.

From the results of Table 1 and Table 2, the non-slip laminates of the present invention produced using the coating liquids of Examples 1 to 6 were good in printability and substrate adhesion. Further, it is clear that the non-slip packaging bag and the packaging container of the present invention can form a non-slip portion exhibiting excellent anti-slip performance. The coating liquid 7 of Comparative Example 1 contains a large amount of heat-expandable microcapsules, is slightly inferior in printability, is poor in adhesion to a substrate, and is slightly inferior in anti-slip effect. The coating liquid 8 of Comparative Example 2 has good printability and good substrate adhesion, but has no anti-slip effect. The coating liquid 9 of Comparative Example 3 is slightly inferior in printability, poor in substrate adhesion, and slightly inferior in anti-slip effect. The coating liquids of Comparative Examples 4 and 5 had extremely high viscosity, and it was difficult to uniformly disperse them. The coating liquid 10 of Comparative Example 6 is inferior in printability, has uneven density, and does not have an anti-slip effect. The non-slip packaging bag produced by using the coating liquid 11 of Comparative Example 7 similar to the cited document 2 has a weak anti-slip effect, and the fingers slip when cut, and therefore the packaging bag cannot be held. Further, the one without the coating liquid has no anti-slip effect.

Claims (6)

A laminate comprising a non-slip layer on at least one of the base materials,
The non-slip layer is composed of a coating layer coated with a coating liquid for forming a non-slip portion,
The anti-slip part forming coating liquid contains 1 to 50 mass% of a heat-expandable microcapsule, 1 to 25 mass% of a thermoplastic resin, and 45 to 45 mass% of a solvent in the anti-slip part forming coating liquid. 95% by mass, and a non-slip laminate. The anti-slip laminate according to claim 1, wherein the anti-slip layer is a coating layer of at least one selected from a gravure printing method and a flexographic printing method. A packaging bag produced using the non-slip laminate according to claim 1 or 2,
A packaging bag, wherein the non-slip layer constituting the anti-slip laminate is the outermost surface. A step of preparing a base material,
Applying a non-slip layer to at least one of the substrates,
A step of forming a bag-like shape having an opening on at least one of the non-slip layers on the base material so as to be the outermost surface,
Storing the contents from the opening,
A step of sealing the opening,
And forming a non-slip part by foaming the anti-slip layer by heat treatment during the step of forming into a bag shape having the opening and/or the step of sealing the opening. A method for manufacturing a characteristic non-slip packaging bag. A step of preparing a paper base material,
Applying a non-slip layer on one side of the paper substrate,
A step of forming a packaging container having an opening on at least one side so that the non-slip layer on the paper substrate is the outermost surface,
A method for manufacturing a non-slip packaging container, comprising forming the non-slip portion by foaming the non-slip layer by heat treatment during the step of forming the packaging container. A non-slip coating liquid for use in a non-slip laminate comprising a non-slip layer on at least one of the base materials,
In the coating liquid for forming the non-slip portion,
1 to 50 mass% of heat-expandable microcapsules,
1 to 25 mass% of thermoplastic resin,
The solvent is 45 to 95% by mass,
A coating liquid for forming a non-slip portion, which comprises: