CN103524864B - Woven bag internally covering film - Google Patents

Woven bag internally covering film 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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China
Prior art keywords
film
woven bag
covering film
woven
bag
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.)
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Application number
CN201310459799.6A
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Chinese (zh)
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CN103524864A (en
Inventor
刘凤芝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KAIYUAN SHENGDA PLASTIC COLOR PRINTING PLANT
Original Assignee
KAIYUAN SHENGDA PLASTIC COLOR PRINTING PLANT
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.)
Filing date
Publication date
Application filed by KAIYUAN SHENGDA PLASTIC COLOR PRINTING PLANT filed Critical KAIYUAN SHENGDA PLASTIC COLOR PRINTING PLANT
Priority to CN201310459799.6A priority Critical patent/CN103524864B/en
Publication of CN103524864A publication Critical patent/CN103524864A/en
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Publication of CN103524864B publication Critical patent/CN103524864B/en
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Classifications

    • 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 other atoms than carbon or hydrogen atoms
    • C08L23/0853—Vinylacetate
    • 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

Abstract

The invention discloses a woven bag internally covering film. The internally covering film comprises the components by the weight percentage: 75%-85% of EVA 14-2; 15%-10% of LLDPE 18; 6%-3% of HDPE 9455; and 4%-2% of linear 7042 or 7047. The woven bag internally covering film can be directly internally adhered to woven cloth, replaces an internally covering film having a layer structure; and the woven bag internally covering film has smooth surface, has strong adhesion ability on the woven cloth, and reduces the manufacturing cost of a woven bag with the internally covering film.

Description

Cover in a kind of woven bag and use film
Technical field
The present invention relates to a kind of plastic film material, especially a kind of for the thin-film material at woven bag internal surface overlay film.
Background technology
Interior coated knitted bag is widely used in the industries such as chemical industry, agricultural, food, cement, and it had both accepted the high advantage of woven bag tensile strength, had again the good resistance to air loss of bag film and moistureproofness, is a kind of typical compound package material.Especially coated knitted bag in making using cylinder weaving cloth as base cloth, have that anti-pull-off force is strong, resistance to air loss good especially, moistureproof, overlay film difficult drop-off, bear that internal gas pressure ability is strong, outward appearance no longer includes the outer advantages such as the multiple former flounce of film woven bag exists, intensity is not impaired, and fundamentally solves in the past by manually turning over the original process of bag.
For the production of the many employings of the internal layer membrane material of interior coated knitted bag 2 layers or 3-tier architecture in prior art, its objective is in order to while making thin-film material have smooth internal surface, can be attached to securely and compile on ply ground fabric, CN 202742779 U discloses a kind of multiple woven bag film, this multiple woven bag membrane body comprises A surface layer, sandwich layer, B surface layer, A surface layer, sandwich layer, B surface layer superposes successively and is made by co-extrusion to, although the bag mould material of this structure solves interior film strength, antistatic effect and inner membrance adhesion problem, but, need in process of production to adopt multimode coextrusion head to form film body, and multimode coextrusion head equipment price is higher, add the manufacturing cost of interior coated knitted bag.In addition, this film with Rotating fields is in order to ensure the even of the complete of three-decker and trilaminate material, and the thickness of its film forming is also restricted, and can not be used for covering in thinner interior coated knitted bag using film.
Summary of the invention
The technical problem that invention will solve: provide in a kind of woven bag and cover with film, cover in this woven bag with film can directly in stick in woven cloth, substituting to have in Rotating fields covers with film, cover in this woven bag and use film smooth surface, strong to the adhesive ability of woven cloth, reduce the manufacturing cost of interior coated knitted bag.
The technical scheme that technical solution problem is taked:
Cover with film in a kind of woven bag, the weight percent of described interior overlay film component is:
EVA 14-2 75%—85%；
LLDPE 18 15%—10%；
HDPE 9455 6%-3%；
Linear 7042 or 7,047 4%-2%.
As improvement of the present invention: the weight percent of described interior overlay film component is:
EVA 14-2 80%；
LLDPE 18 12%；
HDPE 9455 5%；
Linear 7042 or 7,047 3%.
Beneficial effect: cover in woven bag of the present invention with film owing to reasonably defining in woven bag the material component and mixing ratio that cover with film, make to cover in woven bag of the present invention with film can directly in stick in woven cloth, both ensure that the surface property that overlay film is smooth, cover in making again and to woven cloth, there is good adhesive ability with film, therefore, covering in woven bag of the present invention can to substitute in prior art with film covers with film by having in Rotating fields of forming of base layer and adhesive linkage, single mode head is only needed to extrude in process of production, comparatively adopt in multimode coextrusion head productive zone structure the less investment covered with film film-forming apparatus, floor space and space little, save electric energy, reduce the manufacturing cost of interior coated knitted bag.
Embodiment
Be described in further detail with film covering in woven bag of the present invention below.
Embodiment 1
Cover with film in a kind of woven bag, the weight percent of described interior overlay film component is:
EVA 14-2 85%；
LLDPE 18 10%；
HDPE 9455 3%；
Linear 7042 or 7,047 2%.
Embodiment 2
Cover with film in a kind of woven bag, the weight percent of described interior overlay film component is:
EVA 14-2 75%；
LLDPE 18 15%；
HDPE 9455 6%；
Linear 7042 or 7,047 4%.
Embodiment 3
Cover with film in a kind of woven bag, the weight percent of described interior overlay film component is:
EVA 14-2 80%；
LLDPE 18 12%；
HDPE 9455 5%；
Linear 7042 or 7,047 3%.
Raw material is put into individual layer inflation film manufacturing machine by the mixing ratio in above-described embodiment, and at 115 DEG C ~ 260 DEG C temperature, blowing is formed in woven bag to cover uses film.

Claims (2)

1. cover in woven bag with a film, it is characterized in that the weight percent of described interior overlay film component is:
EVA 14-2 75%—85%；
LLDPE 18 15%—10%；
HDPE 9455 6%-3%；
Linear 7042 or 7,047 4%-2%.
2. cover in woven bag according to claim 1 with film, it is characterized in that the weight percent of described interior overlay film component is:
EVA 14-2 80%；
LLDPE 18 12%；
HDPE 9455 5%；
Linear 7042 or 7,047 3%.
CN201310459799.6A 2013-10-08 2013-10-08 Woven bag internally covering film Active CN103524864B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310459799.6A CN103524864B (en) 2013-10-08 2013-10-08 Woven bag internally covering film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310459799.6A CN103524864B (en) 2013-10-08 2013-10-08 Woven bag internally covering film

Publications (2)

Publication Number Publication Date
CN103524864A CN103524864A (en) 2014-01-22
CN103524864B true CN103524864B (en) 2015-07-22

Family

ID=49927238

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310459799.6A Active CN103524864B (en) 2013-10-08 2013-10-08 Woven bag internally covering film

Country Status (1)

Country Link
CN (1) CN103524864B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105131414A (en) * 2015-09-08 2015-12-09 沈阳化工大学 Internally covering film for plastic woven bag
CN105460395A (en) * 2015-12-01 2016-04-06 潜山县恒源塑业有限责任公司 Production technology of woven bag for cement packaging

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 (en) * 1993-05-20 1994-11-23 何春武 Directly spraying plastics technology for woven plastic packing bag
CN1104422A (en) * 1993-12-30 1995-07-05 凌海波 Anti-insect and mould-proof bag for grain and its manufacture
US5732745A (en) * 1994-01-31 1998-03-31 Marko I.R.D.C., Inc. Thermoplastic tube
CN101722274A (en) * 2009-12-15 2010-06-09 武汉恒德科技有限公司 Three-layer ethylene-vinyl acetate copolymer negative pressure casting film and preparation method thereof

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 (en) * 2005-12-01 2007-06-13 丹阳市万乐复合材料厂 Method for producing blowing-film for bags

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 (en) * 1993-05-20 1994-11-23 何春武 Directly spraying plastics technology for woven plastic packing bag
CN1104422A (en) * 1993-12-30 1995-07-05 凌海波 Anti-insect and mould-proof bag for grain and its manufacture
US5732745A (en) * 1994-01-31 1998-03-31 Marko I.R.D.C., Inc. Thermoplastic tube
CN101722274A (en) * 2009-12-15 2010-06-09 武汉恒德科技有限公司 Three-layer ethylene-vinyl acetate copolymer negative pressure casting film and preparation method thereof

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Publication number Publication date
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