CN108291037A - Food packaging film and food packaging wound membrane with packing box - Google Patents

Food packaging film and food packaging wound membrane with packing box Download PDF

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Publication number
CN108291037A
CN108291037A CN201680069756.9A CN201680069756A CN108291037A CN 108291037 A CN108291037 A CN 108291037A CN 201680069756 A CN201680069756 A CN 201680069756A CN 108291037 A CN108291037 A CN 108291037A
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China
Prior art keywords
film
food packaging
resin
food
packaging film
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CN201680069756.9A
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Chinese (zh)
Inventor
宫田裕幸
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Kitchen expert of Co.,Ltd.
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Hitachi Chemical Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/38—Devices for discharging contents
    • B65D25/52—Devices for discharging successive articles or portions of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/02—Wrappers or flexible covers
    • B65D65/16—Wrappers or flexible covers with provision for excluding or admitting light
    • B65D65/18—Wrappers or flexible covers with provision for excluding or admitting light with some areas transparent and others opaque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/08—Containers or packages with special means for dispensing contents for dispensing thin flat articles in succession
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/50—Containers, packaging elements or packages, specially adapted for particular articles or materials for living organisms, articles or materials sensitive to changes of environment or atmospheric conditions, e.g. land animals, birds, fish, water plants, non-aquatic plants, flower bulbs, cut flowers or foliage
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
    • C08K5/3472—Five-membered rings
    • C08K5/3475—Five-membered rings condensed with carbocyclic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2300/00—Characterised by the use of unspecified polymers
    • C08J2300/22—Thermoplastic resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/08—Homopolymers or copolymers of vinylidene chloride

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Toxicology (AREA)
  • Evolutionary Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wrappers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)

Abstract

The present invention provides a kind of food packaging film, the polyester plasticizer for being 1000~1800 containing thermoplastic resin, blue colorant and number-average molecular weight.

Description

Food packaging film and food packaging wound membrane with packing box
Technical field
A kind of food packaging wound membrane the present invention relates to food packaging film and with packing box.
Background technology
In the past, in the food packaging restaurants Mo, dining room etc. be used for business, or in the family in food preservation, cook It is widely used when preparing food etc..In recent years, in order to be easy visually to distinguish the fragment of film being mixed into food, it is proposed that it is a kind of will be hot Plastic resin is as principal component, and the further food packaging film (patent document containing colorants such as copper phthalocyanine system colorants 1)。
On the other hand, in food packaging film, for the mesh for assigning the functions such as flexibility or easy to manufacture film to film , usually using additives such as plasticizer, antifoggant, stabilizers.
In addition, in recent years, standard, benchmark about food hygiene law are studying the coordination with various countries, food packaging The benchmark of stripping quantity of the additive contained in film into food becomes problem.As one of opinion most strong at present, has and add Add stripping quantity of the agent into food that should meet opinion as the 25 μ g/ml of imagination a reference value in the standard of EU, benchmark.
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2015-7198 bulletins
Invention content
Problems to be solved by the invention
It is dissolved out into food the purpose of the present invention is to provide a kind of energy suppressant additive and Film making properties and productivity is excellent Food packaging film and food packaging wound membrane with packing box.
The means to solve the problem
The present invention provides a kind of food packaging film, contains：Thermoplastic resin, blue colorant and number-average molecular weight For 1000~1800 polyester plasticizer.
It is counted on the basis of film total amount, the content of polyester plasticizer is preferably 6.5~12.5 mass %.
Thermoplastic resin can be selected from by polyvinyl chloride resin, polyvinylidene chloride resin, polyolefin-based resins, At least one of the group of polystyrene resin, polyester based resin and polyamide series resin composition.
Counted on the basis of film total amount, film can contain more than or equal to 70 mass % selected from by polyvinyl chloride resin and At least one of the group of polyvinylidene chloride resin composition is used as thermoplastic resin.
In addition, the present invention provides a kind of food packaging wound membrane with packing box, have：Above-mentioned food packaging film, It is wound with the core material of food packaging film and is accommodated with the packing box of food packaging film and core material, and in packing box Equipped with the blade for cutting off food packaging film.
Invention effect
According to the present invention, it is possible to provide it is a kind of can suppressant additive dissolved out into food and Film making properties and productivity are excellent Food packaging film and food packaging wound membrane with packing box.
Description of the drawings
Fig. 1 is the schematic diagram for indicating the food packaging wound membrane with packing box.
Specific implementation mode
Film involved by present embodiment contain thermoplastic resin, blue colorant and number-average molecular weight be 1000~ 1800 polyester plasticizer (hereinafter also referred to " scheduled polyester plasticizer "), can suitably be used as food packaging film.
Thermoplastic resin can be：The polyvinyl chloride resins such as polyvinyl chloride；The polyvinylidene chloride such as polyvinylidene chloride It is resin；The polyolefin-based resins such as polyethylene, polypropylene, ethylene-acetidin copolymer saponification material；Butadiene-styrene Copolymer, acrylonitritrile-styrene resin, polystyrene, styrene-butadiene-styrene, styrene-isoamyl two The polystyrene resins such as alkene-styrol copolymer, Styrene-acrylic copolymer；Polyethylene terephthalate, poly- naphthalene The polyester based resins such as naphthalate, polybutylene terephthalate (PBT)；The polyamides such as 6- nylon, 6,6- nylon, 12- nylon Amine system resin etc..From the viewpoint of treatability is excellent, thermoplastic resin is preferably polyvinyl chloride resin or poly- inclined two chloroethene Alkene system resin.
As polyvinyl chloride resin, from the viewpoint of the mouldability of film, heat resistance and mobility it is excellent, it is preferably average The polyvinyl chloride resin that the degree of polymerization is 700~1300.Average degree of polymerization in this specification refers to according to JIS K6720-2 institutes The average degree of polymerization of measurement.
From the viewpoint of mechanical excellent, polyvinyl chloride resin can be ryuron (polyvinyl chloride tree Fat), from the purpose for assigning other characteristics, or the copolymerization of vinyl chloride and the other monomers that can be copolymerized with it Object.Copolymer can be graft copolymer, block copolymer or random copolymer.As the example of other monomers, can enumerate：Second The alkene such as alkene, propylene, polybutene；The vinyl esters of the saturated acids such as vinyl acetate, vinyl laurate；Methyl acrylate, first The Arrcostab of the unsaturated acids such as base methyl acrylate；The alkyl vinyl ethers such as lauryl vinyl ether；Maleic acid, acrylonitrile, benzene Ethylene, methyl styrene, vinylidene fluoride etc..When polyvinyl chloride resin is copolymer, the vinylchloride units in copolymer Content counted on the basis of monomeric unit total amount can be more than or equal to 10 mass %, go out from the viewpoint of mechanical excellent Hair, preferably greater than or equal to 30 mass %, more preferably greater than or equal to 50 mass %.Vinylchloride units in copolymer The upper limit of content is not particularly limited, such as is counted on the basis of monomeric unit total amount, can be less than or equal to 99 mass %.
Polymer of the polyvinyl chloride resin such as can be the three-dimensional polymer with acrylonitrile-butadiene-styrene (ABS) Admixture, the post-treated using alcohol etc., the post-treated using chlorine-containing compound.In these cases, it is with resin total amount The content of benchmark meter, the vinylchloride units in polyvinyl chloride resin can be more than or equal to 10 mass %.
Polyvinylidene chloride resin can be vinylidene chloride homopolymer (polyvinylidene chloride resin), such as can be Contain the copolymer of vinylidene chloride and the other monomers that can be copolymerized with vinylidene chloride as monomeric unit.Other lists Body can be the methyl of the alcohol of the acrylate of the alcohol of vinyl chloride, acrylic acid and carbon number 1~8, methacrylic acid and carbon number 1~8 Acrylate, the vinyl esters of aliphatic carboxylic acid, unsaturated aliphatic carboxylic acid, alkene, vinyl ethers etc..It should be noted that The copolymer of vinylidene chloride and vinyl chloride belongs to polyvinylidene chloride resin.
It from the viewpoint of the mouldability of film and heat resistance, is counted on the basis of monomeric unit total amount, polyvinylidene chloride system The content of vinylidene chloride units in resin for example can be more than or equal to 60 mass %, be greater than or equal to 70 mass %, Or it is greater than or equal to 80 mass %.The upper limit of the content of vinylidene chloride units in polyvinylidene chloride resin is not special It limits, such as is counted on the basis of monomeric unit total amount, can be less than or equal to 99 mass %.The content of vinylidene chloride units It can be measured by nuclear magnetic resonance (NMR) device.
The weight average molecular weight of polyvinylidene chloride resin for example can be 40000~180000,60000~160000, Or 80000~140000.The weight average molecular weight of polyvinylidene chloride resin can be by GPC method, by polyphenyl known to molecular weight Ethylene is measured as standard substance.
The condition for the GPC method that weight average molecular weight for polyvinylidene chloride resin measures is as described below.As measurement Device, the gel permeation chrommatograph Alliance GPC2000 types manufactured using Waters companies.Make in a manner of as 0.5 weight % Polyvinylidene chloride resin is dissolved in tetrahydrofuran, and the substance of gained is used as sample.
Chromatographic column：30cm × 2 TSKgel GMHHR-H (S) HT of TOSOH Co., Ltd's manufacture, TSKgel GMH6-HTL 30cm×2
Mobile phase：Tetrahydrofuran
Detector：Differential refractometer
Flow velocity：1.0mL/ minute
Chromatogram column temperature：20℃
Sample size：500μL
From the viewpoint of productivity is excellent, counted on the basis of film total amount, the content of thermoplastic resin can be more than or Equal to 70 mass % or it is greater than or equal to 75 mass %, furthermore it is possible to for less than or equal to 85 mass % or less than or equal to 80 Quality %.It is preferred that polyvinyl chloride resin or the content of polyvinylidene chloride resin are above range.
Blue colorant be, for example, maximum absorption wavelength in visible light region (380~750nm) be present in 600~ The colorant of 750nm.Absorbance under maximum absorption wavelength of the blue colorant in visible light region is the extinction under 470nm Degree preferred 2 times or more, more preferable 3 times or more.Specifically, blue colorant can be copper phthalocyanine (copper phthalocyanine blue), six cyanogen Close the sour iron (III) of iron (ii), cobalt protoxide alumina mixture, indigo, ultramarine etc..
Counted on the basis of film total amount, the content of blue colorant can be more than or equal to 0.5 mass %, furthermore it is possible to To be less than or equal to 2.0 mass %.
The number-average molecular weight of polyester plasticizer is 1000~1800, from further suppressing what additive was dissolved out into food Viewpoint is set out, preferably 1200~1800, more preferably 1300~1800, further preferably 1400~1800, particularly preferably It is 1500~1800.Number-average molecular weight in the present invention is by GPC (for example, Agilent Technologies Co., Ltd. The model of manufacture：Agilent 1260Infinity GPC) measured, polystyrene conversion number-average molecular weight.
GPC conditions when the number-average molecular weight of polyester plasticizer measures are as described below.As measurement device, use The gel permeation chrommatograph Alliance GPC2000 types of Waters companies manufacture.Sample 30mg is set to be completely dissolved in neighbour at 145 DEG C After in dichloro-benzenes 20mL, the sintered filter for being 0.45 μm using aperture is filtered the solution, and using its filtrate as examination Sample solution.Other conditions are as described below.
Chromatographic column：30cm × 2 TSKgel GMHHR-H (S) HT of TOSOH Co., Ltd's manufacture, TSKgel GMH6-HTL 30cm×2
Mobile phase：O-dichlorohenzene
Detector：Differential refractometer
Flow velocity：1.0mL/ minute
Chromatogram column temperature：140℃
Sample size：500μL
As polyester plasticizer, such as aliphatic polybasic acids system polyester plasticizer can be enumerated.Aliphatic polybasic acids system is poly- Ester plasticiser polyalcohols such as aliphatic polybasic acids and ethylene glycol, propylene glycol, butanediol such as can be adipic acid, decanedioic acid Polyester resin.As aliphatic polybasic acids system polyester plasticizer, specifically, can enumerate：Poly- (ethylene glycol/adipic acid) ester gathers (1,3 butylene glycol/adipic acid) ester, poly- (1,4- adipate butanediols) ester, poly- (propylene glycol/decanedioic acid) ester etc..These polyester It is that plasticizer can be used alone a kind of or be used in combination of two or more.
It from the viewpoint of further suppressing additive and being dissolved out into food, is counted on the basis of film total amount, scheduled polyester The content for being plasticizer is preferably greater than or equal to 6.5 mass %, more preferably greater than or equal to 7.0 mass %, further excellent It is selected as being greater than or equal to 8.0 mass %, particularly preferably greater than or equal to 10.0 mass %.It is better from Film making properties and productivity From the perspective of, it is counted on the basis of film total amount, the content of scheduled polyester plasticizer is preferably less than or equal to 12.5 matter Measure %, more preferably less than or equal to 12.0 mass %.From further suppressing additive and dissolved out into food and Film making properties and life It from the perspective of yield is better, is counted on the basis of film total amount, the content of scheduled polyester plasticizer is preferably 6.5~12.5 Quality %, 6.5~12.0 mass %, 7.0~12.5 mass %, 7.0~12.0 mass %, 8.0~12.5 mass %, 8.0~ 12.0 mass %, 10.0~12.5 mass % or 10.0~12.0 mass %.
In addition to thermoplastic resin, blue colorant and scheduled polyester plasticizer, film can further contain other at Point.As other compositions, heat stabilizer, light stabilizer, the plasticizer in addition to scheduled polyester plasticizer, lubrication can be enumerated Agent, filler, anti-precipitation agent, antioxidant, releasing agent, viscosity reducers, surfactant, in addition to blue colorant Toner, fluorescer, surface conditioning agent, crosslinking agent, processing aid, sticker, antistatic agent, ultra-violet absorber, antiblocking agent Deng.
Film may include one layer of layer containing thermoplastic resin, blue colorant and scheduled polyester plasticizer, can also wrap Containing multilayer.When film includes multilayer, film can have such as first surface layer, middle layer and second surface layer successively.In the situation Under, such as first surface layer and second surface layer can contain thermoplastic resin and scheduled polyester plasticizer, middle layer can To contain thermoplastic resin and blue colorant.For example, in order to improve the cementability of each interlayer, film can be further equipped with containing acid The adhesive linkage of modified polyolefin resin etc., in order to improve the heat resistance of film, film can be further equipped with containing polyamide series resin Refractory layer.When thermoplastic resin is polyvinyl chloride resin, film preferably comprises one layer and contains thermoplastic resin (polyvinyl chloride Resin), the layer of blue colorant and scheduled polyester plasticizer.
From the viewpoint of efficiently completely cutting off food and extraneous air, the thickness of film is preferably greater than or equal to 5 μm, more Preferably greater than or equal to 6 μm, in addition, from the viewpoint of treatability is excellent, preferably less than or equal to 25 μm, more preferably Less than or equal to 12 μm.
The stripping quantity of additive contained in film is molten as the heptane stripping quantity and isooctane measured according to the following steps Output is respectively preferably less than or equal to 25 μ g/ml, more preferably less than or equal to 20 μ g/ml.
(heptane stripping quantity)
The sample that certain area is cut from film makes sample in the surface area 1cm relative to sample in 25 DEG C of temperature2For It is impregnated 1 hour in the heptane of 2ml.Then, the n-heptane solution after taking-up sample is evaporated, and measures the quality of solid content, to Find out stripping quantity of the additive from film into heptane.
(isooctane stripping quantity)
The sample that certain area is cut from film makes sample in the surface area 1cm relative to sample in 25 DEG C of temperature2For It is impregnated 30 minutes in the isooctane solution of 2ml.Then, the isooctane solution after taking-up sample is evaporated, and measures solid content Quality, the stripping quantity so as to find out additive from film into isooctane.
Film manufactures in the following way：Utilize V-type blender, helix(ribbon type) agitator, Henschel mixer, mixed at high speed The mixing machines such as machine will be mixed containing the composition of thermoplastic resin, blue colorant and scheduled polyester plasticizer, further It is kneaded as needed using kneading machines such as mixing mill, Ban Buli mixing machines, kneaders, after obtaining composition, such as Carry out extrusion molding.Specifically, supplying the composition into the hopper of extruder, obtained using inflation method, T modulus methods etc. Target film.In general, film is wound while making, rolled film is rewound into each institute's phase such as 20m, 50m again The length (becoming web-like) of prestige, and be fitted into packing box, to become product.That is, the film in present embodiment can be food Product are packed for the form of wound membrane, or the form of the food packaging wound membrane with packing box.
Specifically, as shown in Figure 1, the food packaging wound membrane 1 with packing box can be following form：Has food packet Dress film 2, the core material 3 for being wound with food packaging film 2 and the packing box 4 for being accommodated with food packaging film 2 and core material 3, and And the blade 5 for cutting off food packaging film 2 is equipped in packing box 4.The material of core material 3 and packing box 4 does not limit especially It is fixed.From the viewpoint of easy from the viewpoint of the color of external identification film 2, at least part of packing box 4 is preferably transparent or not damage Evil has opened up hole as the degree of the function of box.
When film includes multilayer, film obtains in the following way：The composition raw material of each layer is put into respectively to different and is squeezed Go out and carry out melting extrusion in machine, each layer is coextruded and is laminated by inflation, T modulus methods etc..At this point, it is preferred that will be squeezed from T moulds The fusant gone out is directly fetched while rapid cooling using casting roll etc. and forms film.
The production of shrinkage in width is inhibited according to percent thermal shrinkage, natural shrinking rate etc. is mitigated for the film obtained in the above described manner The purpose of raw, can carry out the heat treatments such as being longitudinally extended between heating roller, various heat fixations, aging, antifog in order to assign, promote Property, antistatic property, adherence etc., sided corona treatment, the processing such as curing, surface treatments and the surface such as printing, coating can also be carried out Processing etc..
Film discussed above is can be from the external film for recognizing packaged food.In addition, film is (to be also referred to as with extensibility For retractility) film (stretched film).
Film involved by present embodiment can be the food classification film classified for food.If using this embodiment party Two or more food then can be divided at least two groups by the film involved by formula according to the type of food.That is, for example using this Film involved by embodiment packs the first food and is classified as first group, on the other hand, using with present embodiment institute The film or colorless film for the film different colours being related to pack the second food and are classified as second group.
Specifically, for example when first food of the presence containing the first anaphylaxis substance and containing the second anaphylaxis substance When the second food, the first food is classified as being supplied to the people for not having allergic conditions for the first anaphylaxis substance On the other hand second food is classified as not having the second anaphylaxis substance as being supplied to by first group of food group Second group of the food group of the people of quick property symptom.In the above example, can inhibit the anaphylaxis substance being supplied to for One anaphylaxis substance or the second anaphylaxis substance have the generation of the accident of the people of allergic conditions.
Embodiment
Hereinafter, the present invention is further illustrated based on embodiment, but the present invention is not limited to embodiments.
Thermoplastic resin, blue colorant and various additives shown in table 1,2 are put into high-speed mixer Afterwards, material temperature is warming up to 130 DEG C, after mixing from room temperature while being stirred, is taken at the time point for being cooled to 70 DEG C Go out and resin composition modulation, utilizes the Φ 40mm single screw extrusion machines for being equipped with T moulds (width 350mm, gap 0.4mm) (L/D=20), in resin temperature 200 DEG C each resin combination is squeezed out, it is 8 μm of film to make thickness.It should be noted that table In numerical value be solid constituent conversion value, indicate quality %.
Thermoplastic resin a1：(ocean polyvinyl chloride Co., Ltd. manufactures polyvinyl chloride resin, " TH-1000 ", average poly- It is right：1000)
Blue colorant b1：Copper phthalocyanine (copper phthalocyanine blue, Dainichiseika Color Chem's manufacture, " NX-053BLUE ")
Additive c1：(Asahi Denka Co., Ltd. manufactures polyester plasticizer, " PN-150 ", number-average molecular weight：1000, oneself two Acid system polyester)
Additive c2：(J Co., Ltd.-Plus is manufactured polyester plasticizer, " D623 ", number-average molecular weight：1800, oneself two Acid system polyester)
Additive c3：(J Co., Ltd.-Plus is manufactured polyester plasticizer, " D620N ", number-average molecular weight：800, oneself two Acid system polyester)
Additive c4：(Asahi Denka Co., Ltd. manufactures polyester plasticizer, " P-200 ", number-average molecular weight：2000, oneself two Acid system polyester)
Additive c5：Dioctyl adipate (New Japan Chem Co., Ltd manufactures, " Sanso Cizer DOA ")
Additive c6：Epoxidised soybean oil (three and synthesis Chemical Co., Ltd. manufacture, " Chemicizer SE-100 ")
Additive c7：Fatty acid glyceride (Riken Vitamin Co., Ltd. manufactures, " XO-100 ")
Additive c8：Ca/Zn systems stabilizer (Asahi Denka Co., Ltd. manufactures, " SC-308E ")
For each film obtained, the stripping quantity of additive is measured by following step.
(heptane stripping quantity)
Become 100cm so that the surface area at surface and the back side is total2Mode the sample of 5cm × 10cm is cut from film, 25 DEG C temperature, make sample in the surface area 1cm relative to sample2To be impregnated 1 hour in the heptane of 2ml.It then, will at 105 DEG C It takes out the testing liquid after sample to be evaporated, and places cooling.Measure the quality of solid constituent after cooling, and according to following formula into Row calculates, the stripping quantity so as to find out ingredient from film into heptane.In the case of polyvinyl chloride resin, if it is less than or wait In 150 μ g/ml, it can be said that well, if it is less than or be equal to 30 μ g/ml, it can be said that very good.
The amount of taking (ml) of weight (μ the g)/testing liquid of evaporated residue (μ g/ml)=solid constituent
(isooctane stripping quantity)
Become 100cm so that the surface area at surface and the back side is total2Mode the sample of 5cm × 10cm is cut from film, 25 DEG C temperature, make sample in the surface area 1cm relative to sample2To be impregnated 30 minutes in the isooctane solution of 2ml.Then, exist Testing liquid after taking-up sample is evaporated, and places cooling by 105 DEG C.The quality of solid content after cooling is measured, and under The formula of stating is calculated, the stripping quantity so as to find out ingredient from film into isooctane.In the case of polyvinyl chloride resin, if Less than or equal to 90 μ g/ml, it can be said that well, if it is less than or be equal to 30 μ g/ml, it can be said that very good.
The amount of taking (ml) of weight (μ the g)/testing liquid of evaporated residue (μ g/ml)=solid constituent
(evaluations of Film making properties)
Using T mould extruder, each resin combination is squeezed out and carried out in 200 DEG C of resin temperature the molding of film, observe institute The appearance of the film of acquisition, to evaluate Film making properties.Evaluation criteria is as described below.It should be noted that if being evaluated as A or B, It may be said that Film making properties are excellent.
A：The substantially uniform film of thickness is can get, xanthochromia is not generated in 24 hours extrusions.
B：The slightly visible unevenness of the thickness of film, xanthochromia is produced in 24 hours extrusions.
C：The uneven thickness of film is serious, and xanthochromia is produced in 8 hours extrusions.
(evaluation of productivity)
It is produced when carrying out the molding of film to squeezing out each resin combination in 200 DEG C of resin temperature using T mould extruder Every 24 hours generation numbers of raw fault in production (trepanning, film disconnects and slit undesirable condition) are counted, to evaluate Productivity.Evaluation criteria is as described below.It should be noted that if being evaluated as A or B, it can be said that productivity is excellent.
A：Fault in production number is 0~2 time
B：Fault in production number is 3~4 times
C：Fault in production number is greater than or equal to 5 times
[table 1]
[table 2]
Symbol description
1：Food packaging wound membrane with packing box, 2：Food packaging film, 3：Core material, 4：Packing box, 5：Blade.

Claims (4)

1. a kind of food packaging film, contains：Thermoplastic resin, blue colorant and number-average molecular weight are 1000~1800 Polyester plasticizer.
2. food packaging film according to claim 1, is counted on the basis of film total amount, the content of the polyester plasticizer For 6.5~12.5 mass %.
3. food packaging film according to claim 1 or 2, the thermoplastic resin is selected from by polyvinyl chloride tree Fat, polyvinylidene chloride resin, polyolefin-based resins, polystyrene resin, polyester based resin and polyamide series resin group At at least one of group.
4. a kind of food packaging wound membrane with packing box, has：Food packaging according to any one of claims 1 to 3 With film, it is wound with the core material of the food packaging film and is accommodated with packing for the food packaging film and the core material Box,
The blade for cutting off the food packaging film is equipped in the packing box.
CN201680069756.9A 2015-11-30 2016-11-29 Food packaging film and food packaging wound membrane with packing box Pending CN108291037A (en)

Applications Claiming Priority (3)

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JPPCT/JP2015/083626 2015-11-30
PCT/JP2015/083626 WO2017094075A1 (en) 2015-11-30 2015-11-30 Food packaging film
PCT/JP2016/085430 WO2017094726A1 (en) 2015-11-30 2016-11-29 Food packaging film, and gift-boxed small roll of food packaging film

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Publication Number Publication Date
CN108291037A true CN108291037A (en) 2018-07-17

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JPH09176424A (en) * 1995-12-27 1997-07-08 Shin Etsu Polymer Co Ltd Stretched film
CN1202189A (en) * 1995-11-09 1998-12-16 陶氏化学公司 Vinylidene chloride polymer compositions and irradiated articles prepared therefrom
JP2007197605A (en) * 2006-01-27 2007-08-09 Mitsubishi Plastics Ind Ltd Polyvinyl chloride resin composition and stretch film

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JP2009154527A (en) 2007-12-06 2009-07-16 Daicel Value Coating Ltd Heat-sealable film and its forming method
JP5379704B2 (en) * 2010-01-27 2013-12-25 日立化成フィルテック株式会社 Polyvinyl chloride resin composition and wrap film using the same
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CN1202189A (en) * 1995-11-09 1998-12-16 陶氏化学公司 Vinylidene chloride polymer compositions and irradiated articles prepared therefrom
JPH09176424A (en) * 1995-12-27 1997-07-08 Shin Etsu Polymer Co Ltd Stretched film
JP2007197605A (en) * 2006-01-27 2007-08-09 Mitsubishi Plastics Ind Ltd Polyvinyl chloride resin composition and stretch film

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JPWO2017094726A1 (en) 2018-09-27
JPWO2017094075A1 (en) 2017-11-30
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WO2017094075A1 (en) 2017-06-08
KR20180088693A (en) 2018-08-06

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