CN106142791A - A kind of preparation method bakeing the bright gas flush packaging film of the special height of based food - Google Patents

A kind of preparation method bakeing the bright gas flush packaging film of the special height of based food Download PDF

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Publication number
CN106142791A
CN106142791A CN201610521136.6A CN201610521136A CN106142791A CN 106142791 A CN106142791 A CN 106142791A CN 201610521136 A CN201610521136 A CN 201610521136A CN 106142791 A CN106142791 A CN 106142791A
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CN
China
Prior art keywords
polypropylene
film
preparation
biaxially oriented
micron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610521136.6A
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Chinese (zh)
Inventor
邓锐
俞学锋
李知洪
邹家武
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Hubei Hongyu New Packaging Material Co Ltd
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Hubei Hongyu New Packaging Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201610521136.6A priority Critical patent/CN106142791A/en
Publication of CN106142791A publication Critical patent/CN106142791A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
    • B29C41/32—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/0036—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/14—Multicolour printing
    • 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
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
    • B32B2307/412—Transparent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles

Abstract

A kind of preparation method bakeing the bright gas flush packaging film of the special height of based food, is used water-soluble polypropylene acids adhesive to form two-layer structure composite membrane through dry-lamination process by polypropylene print film and polypropylene thermal sealer.It is characterized in that polypropylene print film is biaxially oriented polypropylene film (BOPP film) or the biaxially oriented polypropylene film containing function coating；Polypropylene thermal sealer is Propylene-based elastomers modifies cast polypropylene film (CPP film)；Use water-soluble polyacrylate class adhesive, by dry-lamination process, polypropylene print film is fitted with polypropylene thermal sealer.Solve the high transparent problem of composite film material, meet the pressure technology of the package demand of inflation, meanwhile, no solvent residue, be especially suitable for bakeing based food automation gas flush packaging.

Description

A kind of preparation method bakeing the bright gas flush packaging film of the special height of based food
Technical field
This patent relates to a kind of composite film for foods package, particularly a kind of baking bright gas flush packaging of the special height of based food The preparation method of film.
Background technology
Owing to biscuit, bread, cake etc. bakee the special fresh-keeping damp-proof characteristic requirements of based food, its packaging material material is tied Based on two layers of composite membrane generally with polypropylene as base material for the structure, such as Biaxially oriented polypropylene/cast polypropylene (BOPP/CPP) or Biaxially oriented polypropylene/the cast polypropylene (KOPP/CPP) of polyvinylidene chloride coating, composite membrane preparation technology is many, and employing is double Component polyurethane gluing agent, but still there are two big technical bottlenecks: (1) composite membrane transparency and luminance range, general mist degree >= 3%, reflecting rate≤80%, poor as the overall shelf effect of inflation transparent packaging film, it is unfavorable for that consumer passes through packaging film and observes Product；(2) adhesive causes intermembranous peel strength relatively low, general≤0.6N/15mm, and low peel strength causes inflation broken bag wind Danger, often shows not pressure, explosive bag, it is impossible to reach the requirement of gas-filled protective product.(3) solvent borne polyurethane adhesive is not Evitable exist problem of solvent residual, easily to food secondary pollution, produces peculiar smell, is unfavorable for food security.
Chinese invention patent " PVDC-polyolefin coextruded thermoforming high-barrier composite package material " (patent No.: 200610040449.6) disclose a kind of upper and lower film combination forming to pack, upper film: BOPP/PE-TIE-PVDC-TIE-PP-PE, Use multilayer curtain coating or blown film coextrusion and solvent-free dry type composite molding；Lower film: PP-TIE-PVDC-TIE-PE, uses multilayer Curtain coating or blown film co-extrusion modling；Solve PVDC and polyolefine material because thermal sensitivity difference is excessive and crystalline resins and non-knot Between brilliant resin, the reasons such as stress equilibrium are difficult to the technical barrier of efficient combination under the conditions of coextrusion.Product have high resistant oxygen, Block water vapour performance, can meet inflation, vacuumizes, the various function packaging such as thermoforming.
Chinese invention patent " toughening type three-layer coextru-laminated film and preparation method thereof " (patent No.: 201010225755.3) disclosing a kind of toughening type three-layer coextru-laminated film and preparation method thereof, it is by casting machine three layers altogether Squeeze and form, be particularly suitable for the packaging of the nitrogen aerated product of the oil-containing such as eggs, bread.Compared with traditional CPP film, this film Polypropylene modification technology is used to improve impact strength and the toughness of laminated film.
Chinese invention patent " a kind of method using water-soluble glue to make composite membrane " (201410608663.1) discloses A kind of method using water-soluble glue to make composite membrane, employing polythene PE film is compound with non-woven fabrics, then dries through dehumidifier Form becomes composite membrane, and product has that combined strength bination is high, and transparency is good, and steady quality is easy to use, does not have foaming, delamination, general The phenomenon such as yellow, wrinkling, and glue dry after colourless, tasteless, nontoxic, pollution-free, be a kind of environmental type Laminating adhesive.
Above-mentioned patent is with the maximum difference of this patent: (1) this patent is applied to bread etc. and bakees based food inflation bag Dress field, key breakthrough polypropylene film material glossiness and mist degree performance.(2) this patent uses water-soluble polypropylene acids glue Glutinous agent, forms two-layer structure composite membrane through dry-lamination process, and composite membrane peel strength is high, it is ensured that inflate resistance to pressure request. (3) this patent uses environment-friendly water-based adhesive, no solvent residue, reaches packaging material food security.
Content of the invention
For existing baking based food gas flush packaging, domestic most such as two-component polyurethane adhesive is used to stick agent, on the one hand Owing to material viscosity properties and coating process limit, the composite membrane transparency is poor；On the other hand, adhesive for polyurethane is in the process of use In there is organic solvent, easily cause dissolvent residual, the purpose of patent of the present invention be exactly for solve the problems referred to above.
The technical scheme is that and be achieved in that:
A kind of preparation method bakeing the bright gas flush packaging film of the special height of based food, by print film and heat-sealing film two-layer structure group Become, use water-soluble polypropylene acids adhesive between layers, form composite membrane through dry type coating process.
Above-mentioned print film is biaxially oriented polypropylene film (BOPP film) or the biaxially oriented polypropylene film containing function coating.
Above-mentioned heat-sealing film is Propylene-based elastomers modifies cast polypropylene film.It is three-layer co-extruded that polypropylene thermal sealer produces employing Casting technique specifically use following proportioning resin granular material is carried out dispensing, drying, stirring after, on three-layer co-extruded casting apparatus, In corresponding, in, outer three layers of screw machine hopper are separately added into.Internal layer: mass fraction is 50% ternary polymerized polypropylene, mass fraction Being 37% propylene-based elastomeric, mass fraction is 10% ethylene-vinyl acetate copolymer and mass fraction is 3% opening agent (oleic acid acyl Amine or silica or talcum powder).Middle level: mass fraction is 100% HOPP resin.Outer layer: mass fraction is 100% nothing Rule acrylic resin copolymer.Through melted three-layer co-extruded, cool down shaping, form CPP film.
Above-mentioned adhesive is water-soluble polyacrylate class adhesive.
Wherein, biaxially oriented polypropylene film (BOPP film) or the biaxially oriented polypropylene film such as KOPP containing function coating Film, meets colored printing performance；Polypropylene thermal sealer produces and uses three-layer co-extruded casting technique, and its internal layer hot sealing layer passes through propylene Based elastomeric and ternary polymerized polypropylene blending and modifying process, form high-air-tightness heat sealing film, meet high speed breathing characteristic；Water Soluble polyacrylate class adhesive is for the accurate coating of composite membrane, and satisfied high bright and composite membrane peel strength requires.
Polypropylene thermal sealer produces and uses three-layer co-extruded casting technique, and its internal layer hot sealing layer passes through propylene-based elastomeric and three Unit's COPP blending and modifying process, the concrete technology of three-layer co-extruded curtain coating is
Use following proportioning resin granular material is carried out dispensing, drying, after stirring, on three-layer co-extruded casting apparatus, corresponding in, In, outer three layers of screw machine hopper are separately added into.For example:
Internal layer: weight ratio is 50% ternary polymerized polypropylene, 37% propylene-based elastomeric, 10% ethylene-vinyl acetate copolymer and 3% Opening agent.
Middle level: weight ratio is 100% HOPP resin.
Outer layer: weight ratio is 100% atactic copolymerized polypropene resin.
Through melted three-layer co-extruded, cool down shaping, form CPP film.
The present invention, by implementing pattern printing to polypropylene print film, forms and has the film of color printing effect, by water-soluble Property polyacrylic adhesive, with Propylene-based elastomers modifies cast polypropylene film formed two-layer structure composite membrane.Again through curing, The operation such as cut, become packaging wound membrane, be applied to horizontal automatic moulding-heat-sealing-packing (HFFS).This composite membrane have as Lower performance advantage: (1) is high bright, and the especially transparency of film is good, and reflecting rate is high, has splendid shelf effect.(2) inflate resistance to Compressive Strength is high, and air-tightness is good, and the high speed that can be applicable to speed >=150 bag/min rests the head on formula automatic packaging, meet heat seal strength >= 10N/15mm, the technology that air-tightness reaches more than 90% requires.It is especially suitable for bread, cake etc. and bakee the inflation of based food certainly Dynamic packaging.
Brief description
The concrete structure of the present invention is given by below example and accompanying drawing thereof.
Fig. 1 is the structural representation of the present invention.In figure: the 1st, print, the 2nd, adhesive, the 3rd, heat-sealing film.
Detailed description of the invention
As it is shown in figure 1, complete print film color printing by electronical line shaft intaglio press, form the BOPP coloured silk with certain pattern Die；Complete Material cladding by dry compound machine gravure coating process, form the composite membrane with two-layer structure, wherein
Print film: 18 micron thickness bidirectional stretching polypropylene films.
Adhesive: 40% solid content aqueous polyacrylate latex.
Hot sealing layer: use 30 micron thickness 30% propylene-based elastomerics and 70% ternary polymerized polypropylene blending and modifying cast polypropylene Film.
Composite membrane is positioned over after 45 DEG C of environment cure 12 hours and is cooled to natural temperature, by cutting into wound membrane, is applied to The High-Speed Automatic packaging of gem inflation produces.
This packaging film heat seal strength >=10N/15mm, interlaminar strength >=0.6N/15mm, mist degree≤2%, light transmittance >= 92%, glossiness >=90%, moisture-vapor transmission≤5 g/(m2 24h), the coefficient of sliding friction is 0.4-0.7, rests the head on formula through level Packing machine inflation package finished product is pressure >=40KPa.Having is the distinguishing features such as high transparent, high-air-tightness, no solvent residue, can It is applied to the high speed pillow type packaging (HFFS) of (speed >=150 bag/min) at a high speed, damp-proofing and fresh-keeping, buffer protection, be very suitable for Bake and bank up with earth class product packaging.

Claims (6)

1. bakee a preparation method for the bright gas flush packaging film of the special height of based food, sealed with polypropylene by polypropylene print film Film uses water-soluble polypropylene acids adhesive to form two-layer structure composite membrane through dry-lamination process, and this composite membrane is positioned over 45 DEG C environment is cooled to natural temperature after curing 12 hours, by cutting into wound membrane, i.e. can obtain bakeing the special height of based food bright Gas flush packaging film.
2. preparation method as claimed in claim 1, it is characterised in that polypropylene print film is 10 micron of-20 micron thickness Biaxially oriented polypropylene film (BOPP film) or the biaxially oriented polypropylene film containing function coating of 10 micron of-20 micron thickness.
3. preparation method as claimed in claim 1, it is characterised in that polypropylene print film is the biaxial tension of 18 micron thickness Polypropylene screen (BOPP film) or the biaxially oriented polypropylene film containing function coating of 18 micron thickness.
4. preparation method as claimed in claim 1, it is characterised in that polypropylene thermal sealer is 15 micron of-40 micron thickness Mass fraction is 15%-45% propylene-based elastomeric and mass fraction is that 50%-80% ternary polymerized polypropylene blending and modifying curtain coating is poly- Propylene film.
5. preparation method as claimed in claim 1, it is characterised in that polypropylene thermal sealer is the mass fraction of 30 micron thickness It is 30% propylene-based elastomeric and mass fraction is 70% ternary polymerized polypropylene blending and modifying cast polypropylene film.
6. preparation method as claimed in claim 1, it is characterised in that water-soluble polyacrylate class adhesive is solid content The water polyacrylic acid latex of 40%.
CN201610521136.6A 2016-07-05 2016-07-05 A kind of preparation method bakeing the bright gas flush packaging film of the special height of based food Pending CN106142791A (en)

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CN201610521136.6A CN106142791A (en) 2016-07-05 2016-07-05 A kind of preparation method bakeing the bright gas flush packaging film of the special height of based food

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109334294A (en) * 2018-08-06 2019-02-15 安徽国风塑业股份有限公司 A kind of heat-sealing type BOPP printing enhancing basement membrane and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1730592A (en) * 2005-09-14 2006-02-08 北京高盟化工有限公司 Composite adhesive for soft wrapper and its preparation method
WO2007012169A1 (en) * 2005-07-29 2007-02-01 Empresa Brasileira De Filmes Flexiveis Ltda. A MULTI-LAYER, Bl-ORIENTED POLYPROPYLENE FILM, A PROCESS FOR PREPARING A MULTI-LAYER BI-ORIENTED POLYPROPYLENE FILM, AND AN ARTICLE COMPRISING SAID FILM
CN103600528A (en) * 2013-10-29 2014-02-26 昆山好利达包装有限公司 Baking packing material
CN105172287A (en) * 2015-08-26 2015-12-23 宜昌宏裕塑业有限责任公司 Cast polypropylene membrane

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007012169A1 (en) * 2005-07-29 2007-02-01 Empresa Brasileira De Filmes Flexiveis Ltda. A MULTI-LAYER, Bl-ORIENTED POLYPROPYLENE FILM, A PROCESS FOR PREPARING A MULTI-LAYER BI-ORIENTED POLYPROPYLENE FILM, AND AN ARTICLE COMPRISING SAID FILM
CN1730592A (en) * 2005-09-14 2006-02-08 北京高盟化工有限公司 Composite adhesive for soft wrapper and its preparation method
CN103600528A (en) * 2013-10-29 2014-02-26 昆山好利达包装有限公司 Baking packing material
CN105172287A (en) * 2015-08-26 2015-12-23 宜昌宏裕塑业有限责任公司 Cast polypropylene membrane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109334294A (en) * 2018-08-06 2019-02-15 安徽国风塑业股份有限公司 A kind of heat-sealing type BOPP printing enhancing basement membrane and preparation method thereof

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