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CN103524864B - 一种编织袋内覆用膜 - Google Patents

一种编织袋内覆用膜 Download PDF

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Publication number
CN103524864B
CN103524864B CN201310459799.6A CN201310459799A CN103524864B CN 103524864 B CN103524864 B CN 103524864B CN 201310459799 A CN201310459799 A CN 201310459799A CN 103524864 B CN103524864 B CN 103524864B
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Prior art keywords
film
woven bag
covering film
woven
bag
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CN103524864A (zh
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刘凤芝
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KAIYUAN SHENGDA PLASTIC COLOR PRINTING PLANT
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KAIYUAN SHENGDA PLASTIC COLOR PRINTING PLANT
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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
    • C08L23/08—Copolymers of ethene
    • C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing atoms other than carbon or hydrogen
    • C08L23/0853—Ethene vinyl acetate copolymers
    • 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
    • C08L2207/062—HDPE

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Bag Frames (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明公开了一种编织袋内覆用膜，所述内覆膜组分的重量百分比为：EVA14-2 75%—85%；LLDPE18 15%—10%；HDPE9455 6%-3%；线性7042或7047 4%—2%，该编织袋内覆用膜可以直接内粘于编织布上，替代具有层结构的内覆用膜，该编织袋内覆用膜表面光滑，对编织布的附着能力强，降低了内覆膜编织袋的制造成本。

Description

一种编织袋内覆用膜
技术领域
本发明涉及一种塑料薄膜材料，尤其是一种用于在编织袋内表面覆膜用的薄膜材料。
背景技术
内覆膜编织袋广泛应用于化工、农业、食品、水泥等行业，它既承接了编织袋抗拉强度高的优点，又具有薄膜袋良好的气密性和防潮性，是一种典型的复合包装材料。尤其是以圆筒编织布作为基布制成的内覆膜编织袋，更是具有抗拉断力强、气密性好、防潮、覆膜不易脱落、承受内气压能力强、外观不再有外复膜编织袋原荷叶边存在、强度不受损等优点，并且从根本上解决了以往靠人工翻袋的原始工艺。
现有技术中用于生产内覆膜编织袋的内层薄膜材料多采用2层或3层结构，其目的是为了使薄膜材料具有光滑的内表面的同时，能够牢固地附着在编织基布上，CN 202742779 U就公开了一种复编织袋膜，该复编织袋膜本体包括A 面层、芯层、B 面层，A 面层、芯层、B 面层依次叠加共挤制成，这种结构的袋膜材料虽然解决了内膜的强度、抗静电能力及内膜附着力问题，但是，在生产过程中需要采用多模头共挤才能形成膜体，而多模头共挤设备价格较高，增加了内覆膜编织袋的制造成本。此外，这种具有层结构的薄膜为了保证三层结构的完整及三层材料的均匀，其成膜的厚度也受到了限制，不能用于较薄内覆膜编织袋的内覆用膜。
发明内容
发明要解决的技术问题：提供一种编织袋内覆用膜，该编织袋内覆用膜可以直接内粘于编织布上，替代具有层结构的内覆用膜，该编织袋内覆用膜表面光滑，对编织布的附着能力强，降低了内覆膜编织袋的制造成本。
解决技术问题所采取的技术方案：
一种编织袋内覆用膜，所述内覆膜组分的重量百分比为：
EVA  14-2           75%—85%；
LLDPE  18          15%—10%；
HDPE  9455            6%-3%；
线性 7042或7047      4%—2%。
作为本发明的改进：所述内覆膜组分的重量百分比为：
EVA  14-2               80%；
LLDPE  18              12%；
HDPE  9455              5%；
线性 7042或7047         3%。
有益效果：本发明的编织袋内覆用膜由于合理的限定了编织袋内覆用膜的材料组分及配合比例，使得本发明的编织袋内覆用膜可以直接内粘于编织布上，既保证了覆膜光滑的表面特性，又使内覆用膜对编织布具有良好的附着能力，因此，本发明的编织袋内覆用膜可以替代现有技术中由基体层和粘接层构成的具有层结构的内覆用膜，在生产过程中仅需单模头挤出即可，较采用多模头共挤生产层结构的内覆用膜成膜设备的投资少，占地面积和空间小，节省电能，降低了内覆膜编织袋的制造成本。
具体实施方式
下面对本发明的编织袋内覆用膜作进一步的详细说明。
实施例1
一种编织袋内覆用膜，所述内覆膜组分的重量百分比为：
EVA  14-2               85%；
LLDPE  18              10%；
HDPE  9455              3%；
线性 7042或7047         2%。
实施例2
一种编织袋内覆用膜，所述内覆膜组分的重量百分比为：
EVA  14-2               75%；
LLDPE  18              15%；
HDPE  9455              6%；
线性 7042或7047         4%。
实施例3
一种编织袋内覆用膜，所述内覆膜组分的重量百分比为：
EVA  14-2               80%；
LLDPE  18              12%；
HDPE  9455              5%；
线性 7042或7047         3%。
将原料按上述实施例中的配合比例放入单层吹膜机，在115℃～260℃温度下，吹塑形成编织袋内覆用膜。

Claims (2)

1.一种编织袋内覆用膜，其特征在于所述内覆膜组分的重量百分比为：
EVA  14-2           75%—85%；
LLDPE  18          15%—10%；
HDPE  9455             6%-3%；
线性 7042或7047      4%—2%。
2.根据权利要求1所述的编织袋内覆用膜，其特征在于所述内覆膜组分的重量百分比为：
EVA  14-2               80%；
LLDPE  18              12%；
HDPE  9455              5%；
线性 7042或7047         3%。
CN201310459799.6A 2013-10-08 2013-10-08 一种编织袋内覆用膜 Active CN103524864B (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105131414A (zh) * 2015-09-08 2015-12-09 沈阳化工大学 一种塑编袋内覆用膜
CN105460395A (zh) * 2015-12-01 2016-04-06 潜山县恒源塑业有限责任公司 一种水泥包装用编织袋生产工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092897A2 (en) * 1982-04-26 1983-11-02 American National Can Company Polymeric composition of matter, oriented polymeric films and shrink bags made therefrom
CN1095350A (zh) * 1993-05-20 1994-11-23 何春武 塑料编织包装袋直接喷塑工艺
CN1104422A (zh) * 1993-12-30 1995-07-05 凌海波 粮食防虫防霉袋及其制作方法
US5732745A (en) * 1994-01-31 1998-03-31 Marko I.R.D.C., Inc. Thermoplastic tube
CN101722274A (zh) * 2009-12-15 2010-06-09 武汉恒德科技有限公司 三层乙烯醋酸乙烯共聚物负压铸造膜及其制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5344884A (en) * 1992-10-08 1994-09-06 Phillips Petroleum Company Polyethylene blends
CN1978184A (zh) * 2005-12-01 2007-06-13 丹阳市万乐复合材料厂 袋用吹塑薄膜的生产方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0092897A2 (en) * 1982-04-26 1983-11-02 American National Can Company Polymeric composition of matter, oriented polymeric films and shrink bags made therefrom
CN1095350A (zh) * 1993-05-20 1994-11-23 何春武 塑料编织包装袋直接喷塑工艺
CN1104422A (zh) * 1993-12-30 1995-07-05 凌海波 粮食防虫防霉袋及其制作方法
US5732745A (en) * 1994-01-31 1998-03-31 Marko I.R.D.C., Inc. Thermoplastic tube
CN101722274A (zh) * 2009-12-15 2010-06-09 武汉恒德科技有限公司 三层乙烯醋酸乙烯共聚物负压铸造膜及其制备方法

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