CN106065103A - A kind of production technology of high tenacity high impact heat shrink films packaging bag - Google Patents

A kind of production technology of high tenacity high impact heat shrink films packaging bag Download PDF

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Publication number
CN106065103A
CN106065103A CN201610544535.4A CN201610544535A CN106065103A CN 106065103 A CN106065103 A CN 106065103A CN 201610544535 A CN201610544535 A CN 201610544535A CN 106065103 A CN106065103 A CN 106065103A
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heat shrink
shrink films
packaging bag
production technology
density polyethylene
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CN201610544535.4A
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Chinese (zh)
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许磊
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Shaanxi University of Technology
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Shaanxi University of Technology
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
    • 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
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • 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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C08L2203/162—Applications used for films sealable films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

The invention discloses the production technology of a kind of high tenacity high impact heat shrink films packaging bag, relate to field of plastic products, prepare including raw material, mixing treatment, high-temperature mixing, extrusion blown film processes, cooling cutting process, inspection and packaging punching six technical processs of finished product, the present invention is by preferred raw material and suitable technological process, improve thin film strength, widen its application, improve the heat sealability of thin film, adapt to mechanization production, and the resilience of packaging can be improved, product has constant vertically and horizontally shrinkage factor, may insure that the stability of packaging is adopted, there is good tear strength, fracture tensile strength, elongation at break, the physical and mechanical propertiess such as impact strength, it is worthy to be popularized.

Description

A kind of production technology of high tenacity high impact heat shrink films packaging bag
Technical field
The present invention relates to field of plastic products, be specifically related to the life of a kind of high tenacity high impact heat shrink films packaging bag Production. art.
Background technology
POF shrink film is the abbreviation of bidirection stretching polyolefine shrink film, and it is a kind of use in the world now the most extensively, sends out Open up rapid novel environment friendly shrink film.This product uses the special process of advanced three layers of melted co-extrusion of biaxial tension, Ke Yisheng It is excellent that output has the high grade of transparency, high shrinkage, high tenacity, high heat sealability, antistatic, tolerance to cold, and safe and reliable is soft Shrink film, but the common POF heat shrink films of prior art still suffers from following defect: insufficient strength, it is impossible to meet requirements at the higher level Application；Film clarity is the highest, grows dim or grey in surface, printing poor effect；Heat sealability is general, and heat seal strength is inadequate Height, affects the outward appearance of commodity and the quality of item.
Summary of the invention
Problem to be solved by this invention is to provide one, and performance is more excellent, quality is higher and the simple high tenacity of production technology The production technology of high impact heat shrink films packaging bag.
To achieve these goals, the technical scheme that the present invention takes is a kind of high tenacity high impact of being provided The production technology of heat shrink films packaging bag, it is characterised in that include following processing step:
(1) raw material prepares: the production raw material of this heat shrink films includes following component (weight portion): LDPE Low Density Polyethylene 80-85 part, LLDPE linear low density polyethylene 60-65 part, magnesium stearate 2-3 part, tetramethylolmethane 2-3 part, ethylene-octene are common Polymers 50-55 part, calcium stearate 1-2 part, sorbitol 2-3 part, barium stearate 1-2 part, polyglycereol monostearate 1-2 part, third Triol 1-2 part；
(2) mixing treatment: added by raw material in horizontal high-speed mixer, a length of 20min during batch mixing, rotating speed is 150rpm- 200rpm；
(3) high-temperature mixing: the batch mixing that step (2) obtains is put into and carries out high-temperature mixing in main frame, a length of 1h-1.5h time mixing, Melting temperature is 250 DEG C；
(4) extrusion blown film processes: extruded by double screw extruder by the material that step (3) obtains, and extrusion temperature is 150 DEG C- 180 DEG C, then extrusion die through inflation film manufacturing machine is extruded into pipe again by extruded material；
(5) cooling cutting process: the material obtaining step (4) carries out air cooling, will draw to stretching baking on the material after cooling Case, drying temperature is 90 DEG C-100 DEG C, and cuts material by subsidiary engine, obtains thin film semi-finished product, wherein by material air cooling to 40 ℃-50℃。
(6) check and pack punching finished product: by rewinding machine, the thin film semi-finished product obtained are tested, after upchecking It is carried out rolling film forming, and punches, then pack outbound.
Further, LDPE Low Density Polyethylene described in described step (1) be melt index be 0.3g/10min- 0.4g/10min, density is 0.93 g/cm3Low Density Polyethylene.
Further, LLDPE linear low density polyethylene described in described step (1) be melt index be 0.45g/ 10min-0.55g/10min, density is 0.91 g/cm3- 0.93g/cm3Linear low density polyethylene.
Further, in described step (4), the extrusion temperature of inflation film manufacturing machine is 200-220 DEG C.
Further, by material air cooling to 40 DEG C-50 DEG C in described step (5).
Further, in described step (5), cross directional stretch multiple is 6-7, longitudinal stretching multiple 6-6.5.
Further, in described step (6), punching aperture is 4mm-6mm.
Using technical scheme, the present invention, by preferred raw material and suitable technological process, improves thin Film strength, has widened its application, improves the heat sealability of thin film, adapts to mechanization production, and can improve packaging Resilience, product has constant vertically and horizontally shrinkage factor, it can be ensured that the stability of packaging is adopted, and has good tear strength, breaks Split the physical and mechanical propertiess such as hot strength, elongation at break, impact strength, be worthy to be popularized.
Accompanying drawing explanation
Fig. 1 is the flow process of the production technology of a kind of high tenacity high impact heat shrink films packaging bag of the present invention Figure.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below in conjunction with Detailed description of the invention, is expanded on further the present invention.
Embodiment 1:
As it is shown in figure 1, the production technology of a kind of high tenacity high impact heat shrink films packaging bag of the present embodiment, its feature exists In, including following processing step:
1) raw material prepares: the production raw material of this heat shrink films includes following component (weight portion): LDPE Low Density Polyethylene 85 parts, LLDPE linear low density polyethylene 65 parts, magnesium stearate 3 parts, tetramethylolmethane 3 parts, ethylene-octene copolymer 55 parts, Calcium stearate 2 parts, sorbitol 3 parts, barium stearate 2 parts, polyglycereol monostearate 2 parts, glycerol 2 parts, wherein said LDPE Low Density Polyethylene be melt index be 0.3g/10min, density is 0.93 g/cm3Low Density Polyethylene, wherein said LLDPE linear low density polyethylene be melt index be 0.45g/10min, density is 0.91 g/cm3Linear low density polyethylene Alkene；
(2) mixing treatment: added by raw material in horizontal high-speed mixer, a length of 20min during batch mixing, rotating speed is 150rpm；
(3) high-temperature mixing: the batch mixing that step (2) obtains is put into and carries out high-temperature mixing in main frame, a length of 1h time mixing, mixing temperature Degree is 250 DEG C；
(4) extrusion blown film processes: being extruded by double screw extruder by the material that step (3) obtains, extrusion temperature is 150 DEG C, By extruded material, extrusion die through inflation film manufacturing machine is extruded into pipe more again, and wherein the extrusion temperature of inflation film manufacturing machine is 200；
(5) cooling cutting process: the material obtaining step (4) carries out air cooling, will draw to stretching baking on the material after cooling Case, drying temperature is 90 DEG C, and cuts material by subsidiary engine, obtains thin film semi-finished product, and it is by material air cooling to 40 DEG C, in horizontal Draw ratio is 6, longitudinal stretching multiple 6.
(6) check and pack punching finished product: by rewinding machine, the thin film semi-finished product obtained are tested, after upchecking It being carried out rolling film forming, and punches, then pack outbound, wherein punching aperture is 4mm.
Embodiment 2: remaining is same as in Example 1, difference is: in described step (1), the production of this heat shrink films Raw material includes following component (weight portion): LDPE Low Density Polyethylene 80 parts, LLDPE linear low density polyethylene 60 parts, hard Fatty acid magnesium 2 parts, tetramethylolmethane 2 parts, ethylene-octene copolymer 50 parts, calcium stearate 1 part, sorbitol 2 parts, barium stearate 1 part, Polyglycereol monostearate 1 part, glycerol 1 part；LDPE Low Density Polyethylene described in described step (1) is that melt index is 0.35g/10min；LLDPE linear low density polyethylene described in described step (1) be melt index be 0.5g/10min, density For 0.92g/cm3Linear low density polyethylene；In described step (4), the extrusion temperature of inflation film manufacturing machine is 210 DEG C；Described step (5) by material air cooling to 45 DEG C in, in described step (5), cross directional stretch multiple is 6, longitudinal stretching multiple 6.5；Described step (6) in, punching aperture is 5mm.
Embodiment 3: remaining is same as in Example 1, difference is: in described step (1), the production of this heat shrink films Raw material includes following component (weight portion): LDPE Low Density Polyethylene 82 parts, LLDPE linear low density polyethylene 63 parts, hard Fatty acid magnesium 2 parts, tetramethylolmethane 3 parts, ethylene-octene copolymer 50-55 part, calcium stearate 2 parts, sorbitol 2 parts, barium stearate 1 Part, polyglycereol monostearate 2 parts, glycerol 1 part；Described in described step (1), LDPE Low Density Polyethylene is melt index For 0.4g/10min；LLDPE linear low density polyethylene described in described step (1) be melt index be 0.55g/10min, close Degree is 0.93g/cm3Linear low density polyethylene；In described step (4), the extrusion temperature of inflation film manufacturing machine is 220 DEG C；Described step (5) by material air cooling to 50 DEG C in, in described step (5), cross directional stretch multiple is 7, longitudinal stretching multiple 6.5；Described step (6) in, punching aperture is 6mm.
After process above step, take out this heat shrink films sample, obtain data below:
From data above, the product acquired by the present invention improves thin film strength, has constant vertically and horizontally shrinkage factor, May insure that the stability of packaging is adopted, coefficient of friction and thickness are the most moderate, have good tear strength, fracture tensile strength, break Splitting the physical and mechanical properties such as percentage elongation, impact strength, preparation technology is simple, easily realizes large-scale production.
Obviously the present invention implements and is not subject to the restrictions described above, as long as have employed method design and the skill of the present invention The improvement of the various unsubstantialities that art scheme is carried out, or the most improved design by the present invention and technical scheme directly apply to it Its occasion, all within protection scope of the present invention.

Claims (7)

1. the production technology of a high tenacity high impact heat shrink films packaging bag, it is characterised in that include that following technique walks Rapid:
(1) raw material prepares: the production raw material of this heat shrink films includes following component (weight portion): LDPE Low Density Polyethylene 80-85 part, LLDPE linear low density polyethylene 60-65 part, magnesium stearate 2-3 part, tetramethylolmethane 2-3 part, ethylene-octene are common Polymers 50-55 part, calcium stearate 1-2 part, sorbitol 2-3 part, barium stearate 1-2 part, polyglycereol monostearate 1-2 part, third Triol 1-2 part；
(2) mixing treatment: added by raw material in horizontal high-speed mixer, a length of 20min during batch mixing, rotating speed is 150rpm- 200rpm；
(3) high-temperature mixing: the batch mixing that step (2) obtains is put into and carries out high-temperature mixing in main frame, a length of 1h-1.5h time mixing, Melting temperature is 250 DEG C；
(4) extrusion blown film processes: extruded by double screw extruder by the material that step (3) obtains, and extrusion temperature is 150 DEG C- 180 DEG C, then extrusion die through inflation film manufacturing machine is extruded into pipe again by extruded material；
(5) cooling cutting process: the material obtaining step (4) carries out air cooling, will draw to stretching baking on the material after cooling Case, drying temperature is 90 DEG C-100 DEG C, and cuts material by subsidiary engine, obtains thin film semi-finished product；
(6) check and pack punching finished product: tested, the thin film semi-finished product obtained to it after upchecking by rewinding machine Carry out rolling film forming, and punch, then pack outbound.
The production technology of a kind of high tenacity high impact heat shrink films packaging bag the most according to claim 1, its feature Be: LDPE Low Density Polyethylene described in described step (1) be melt index be 0.3g/10min-0.4g/10min, density It is 0.93 g/cm3Low Density Polyethylene.
The production technology of a kind of high tenacity high impact heat shrink films packaging bag the most according to claim 2, its feature Be: LLDPE linear low density polyethylene described in described step (1) be melt index be 0.45g/10min-0.55g/ 10min, density is 0.91 g/cm3- 0.93g/cm3Linear low density polyethylene.
The production technology of a kind of high tenacity high impact heat shrink films packaging bag the most according to claim 3, its feature It is: in described step (4), the extrusion temperature of inflation film manufacturing machine is 200-220 DEG C.
The production technology of a kind of high tenacity high impact heat shrink films packaging bag the most according to claim 1, its feature It is: by material air cooling to 40 DEG C-50 DEG C in described step (5).
The production technology of a kind of high tenacity high impact heat shrink films packaging bag the most according to claim 1, its feature It is: in described step (5), cross directional stretch multiple is 6-7, longitudinal stretching multiple 6-6.5.
7. according to the production technology of the high tenacity high impact heat shrink films packaging bag according to any one of claim 1-6, It is characterized in that: in described step (6), punching aperture is 4mm-6mm.
CN201610544535.4A 2016-07-12 2016-07-12 A kind of production technology of high tenacity high impact heat shrink films packaging bag Pending CN106065103A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107501680A (en) * 2017-08-30 2017-12-22 桐城市华猫软膜有限公司 One kind punching PE heat shrink films
CN109135025A (en) * 2016-11-03 2019-01-04 漳州龙文区汇洋远软件开发有限公司 A kind of fire-retardant heat shrinkable package film and preparation method thereof
CN110920091A (en) * 2019-12-03 2020-03-27 南京顶顺包装有限公司 Production process of polyethylene plastic film
CN111875860A (en) * 2020-06-28 2020-11-03 江阴市德惠热收缩包装材料有限公司 Low-temperature heat shrinkable film and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1640922A (en) * 2004-01-08 2005-07-20 上海紫泉标签有限公司 High-transparency polytene thermocontracted film and producing method thereof
CN103360664A (en) * 2013-07-16 2013-10-23 湖北工程学院 High-transparency polyolefin heat shrinkage film and production method thereof
CN103804749A (en) * 2013-12-11 2014-05-21 常熟市希诺包装制品有限公司 Production method of high transparency polyolefin thermal contraction film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1640922A (en) * 2004-01-08 2005-07-20 上海紫泉标签有限公司 High-transparency polytene thermocontracted film and producing method thereof
CN103360664A (en) * 2013-07-16 2013-10-23 湖北工程学院 High-transparency polyolefin heat shrinkage film and production method thereof
CN103804749A (en) * 2013-12-11 2014-05-21 常熟市希诺包装制品有限公司 Production method of high transparency polyolefin thermal contraction film

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109135025A (en) * 2016-11-03 2019-01-04 漳州龙文区汇洋远软件开发有限公司 A kind of fire-retardant heat shrinkable package film and preparation method thereof
CN107501680A (en) * 2017-08-30 2017-12-22 桐城市华猫软膜有限公司 One kind punching PE heat shrink films
CN110920091A (en) * 2019-12-03 2020-03-27 南京顶顺包装有限公司 Production process of polyethylene plastic film
CN111875860A (en) * 2020-06-28 2020-11-03 江阴市德惠热收缩包装材料有限公司 Low-temperature heat shrinkable film and preparation method thereof

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Application publication date: 20161102