CN109677068A - A kind of multi-layer braided bag of Moisture-proof corrosion-proof and its production technology - Google Patents
A kind of multi-layer braided bag of Moisture-proof corrosion-proof and its production technology Download PDFInfo
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- CN109677068A CN109677068A CN201810686247.1A CN201810686247A CN109677068A CN 109677068 A CN109677068 A CN 109677068A CN 201810686247 A CN201810686247 A CN 201810686247A CN 109677068 A CN109677068 A CN 109677068A
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- proof
- corrosion
- layer
- moisture
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Classifications
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- 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
- 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
- B29C69/02—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 of moulding techniques only
-
- 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
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- 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
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
-
- 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
- B32B2307/752—Corrosion inhibitor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention provides a kind of multi-layer braided bag of Moisture-proof corrosion-proof and its production technologies, including strengthening layer, waterproof layer, corrosion-resistant coating.The multi-layer braided bag of a kind of Moisture-proof corrosion-proof is made of the raw material of following parts by weight: 40-60 parts of high density polyethylene (HDPE), 30-50 parts of low density polypropylene, 10-20 parts of glass fibre, 15-25 parts of ethylene propylene diene rubber, 10-18 parts of polyglycolide, 8-12 parts of butadiene rubber, 12-18 parts of pla-pcl, 6-12 parts of talcum powder, 6-10 parts of anilinomethyl triethoxysilane, 4-8 parts of modified additive, 2-6 parts of butyl tin oxide, 2-5 parts of ricinoleic acid, 1-5 parts of melamine, 2-6 parts of stannous sulfide, 3-7 parts of silica flour, 2-8 parts of antioxidant.A kind of multi-layer braided bag of Moisture-proof corrosion-proof of the present invention and its production technology, raw material is cheap and easily-available, is manufactured using three layers of fitting, simple process, and large area production is suitble to promote.
Description
Technical field
The present invention relates to woven bag fields, and in particular to a kind of multi-layer braided bag of Moisture-proof corrosion-proof and its production technology.
Background technique
Woven bag in the market, the raw material produced mostly are all that single layer is in the majority based on low density polypropylene, Ji Yaocheng
Loaded, moisture-proof again, anticorrosion, sun-proof, loss is big, and service life is short；Some multi-layer braided bags have anticorrosion, resistance to height
The features such as warm, moisture-proof, but raw material are more expensive, it is not easy to it obtains, manufacturing process is more complicated, is not suitable for pushing away on a large scale
It is wide to use.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems, provides a kind of multi-layer braided bag of Moisture-proof corrosion-proof, passes through three
The melting of secondary raw material, then press together, has a moisture-proof, corrosion proof function, and the very high intensity of woven bag, simple process have
It is promoted conducive to large-scale production.
To achieve the goals above, the present invention is achieved by the following technical solutions: a kind of Moisture-proof corrosion-proof multilayer volume
Bag is knitted, is formed according to the raw material of following parts by weight: 40-60 parts of high density polyethylene (HDPE), 30-50 parts of low density polypropylene, glass fibers
Dimension 10-20 parts, 15-25 parts of ethylene propylene diene rubber, 10-18 parts of polyglycolide, 8-12 parts of butadiene rubber, 12-18 parts of pla-pcl,
6-12 parts of talcum powder, 6-10 parts of anilinomethyl triethoxysilane, 4-8 parts of modified additive, 2-6 parts of butyl tin oxide, castor-oil plant
2-5 parts of oleic acid, 1-5 parts of melamine, 2-6 parts of stannous sulfide, 3-7 parts of silica flour, 2-8 parts of antioxidant.
Further, the multi-layer braided bag of a kind of Moisture-proof corrosion-proof forms: high-density polyethylene according to the raw material of following parts by weight
45-55 parts of alkene, 35-45 parts of low density polypropylene, 13-17 parts of glass fibre, 18-22 parts of ethylene propylene diene rubber, polyglycolide 14-
16 parts, 9-11 parts of butadiene rubber, 13-15 parts of pla-pcl, 9-11 parts of talcum powder, 7-9 parts of anilinomethyl triethoxysilane, change
Property 5-7 parts of additive, 3-5 parts of butyl tin oxide, 3-4 parts of ricinoleic acid, 2-4 parts of melamine, 3-5 parts of stannous sulfide, quartz
4-6 parts of powder, 4-6 parts of antioxidant.
Further, the multi-layer braided bag of a kind of Moisture-proof corrosion-proof forms: high-density polyethylene according to the raw material of following parts by weight
50 parts of alkene, 40 parts of low density polypropylene, 15 parts of glass fibre, 20 parts of ethylene propylene diene rubber, 15 parts of polyglycolide, butadiene rubber 10
Part, 14 parts of pla-pcl, 10 parts of talcum powder, 8 parts of anilinomethyl triethoxysilane, 6 parts of modified additive, butyl tin oxide 4
Part, 3.5 parts of ricinoleic acid, 3 parts of melamine, 4 parts of stannous sulfide, 5 parts of silica flour, 5 parts of antioxidant.
A kind of multi-layer braided bag of Moisture-proof corrosion-proof and its production technology, include the following steps:
S1, a fused raw material: high density polyethylene (HDPE), polyglycolide, talcum powder, antioxidant are added in the ratio and are mixed
It in machine, heats, melt, stirring evenly, strengthened a layer masterbatch;
S2, second melting raw material: by low density polypropylene, ethylene propylene diene rubber, pla-pcl, modified additive is in the ratio
It is added to the mixer, heats, melts, stirs evenly, obtain waterproof layer masterbatch；
S3, three times fused raw material: by glass fibre, butadiene rubber, anilinomethyl triethoxysilane, butyl tin oxide, castor-oil plant
Oleic acid, melamine, stannous sulfide, silica flour are added to the mixer in the ratio, are heated, melt, are stirred evenly, are prevented
Corrosion layer masterbatch；
S4, extrusion: being put into extruder for strengthening layer masterbatch, waterproof layer masterbatch, corrosion-resistant coating masterbatch that S1, S2, S3 are obtained, squeezes out
Thin slice places into cooling, sizing in water, forms strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane；
S5, pressing: strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane that S4 is obtained are sequentially placed into pressing machine, pressing
10-15min obtains compound flat membrane；
S6, cutting: the compound flat membrane that S5 is obtained is put into cutting machine, is cut into and is woven composite braided item, keeps compound volume
The width for knitting item is 6-8mm；
S7, braiding: the composite braided item that S6 is obtained is put into braider and weaves, and using cutting out, suturing, is formed moisture-proof anti-
Corrode multi-layer braided bag.
In summary the invention has the following advantages: the woven bag produced of the present invention, by up of three-layer, every layer
The effect played emphasize particularly on different fields, especially have good effect in terms of moisture-proof, anticorrosion, three layers tightly press, and improve volume
The use intensity of bag is knitted, preparation process is simple, and popularization can be mass produced.
Specific embodiment
Specific embodiment 1: a kind of multi-layer braided bag of Moisture-proof corrosion-proof forms: high density according to the raw material of following parts by weight
40 parts of polyethylene, 30 parts of low density polypropylene, 10 parts of glass fibre, 15 parts of ethylene propylene diene rubber, 10 parts of polyglycolide, suitable fourth rubber
8 parts of glue, 12 parts of pla-pcl, 6 parts of talcum powder, 6 parts of anilinomethyl triethoxysilane, 4 parts of modified additive, butyl tin oxide
2 parts, 2 parts of ricinoleic acid, 1 part of melamine, 2 parts of stannous sulfide, 3 parts of silica flour, 2 parts of antioxidant.
A kind of production technology of the multi-layer braided bag of Moisture-proof corrosion-proof are as follows:
S1, a fused raw material: high density polyethylene (HDPE), polyglycolide, talcum powder, antioxidant are added in the ratio and are mixed
It in machine, heats, melt, stirring evenly, strengthened a layer masterbatch;
S2, second melting raw material: by low density polypropylene, ethylene propylene diene rubber, pla-pcl, modified additive is in the ratio
It is added to the mixer, heats, melts, stirs evenly, obtain waterproof layer masterbatch；
S3, three times fused raw material: by glass fibre, butadiene rubber, anilinomethyl triethoxysilane, butyl tin oxide, castor-oil plant
Oleic acid, melamine, stannous sulfide, silica flour are added to the mixer in the ratio, are heated, melt, are stirred evenly, are prevented
Corrosion layer masterbatch；
S4, extrusion: being put into extruder for strengthening layer masterbatch, waterproof layer masterbatch, corrosion-resistant coating masterbatch that S1, S2, S3 are obtained, squeezes out
Thin slice places into cooling, sizing in water, forms strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane；
S5, pressing: strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane that S4 is obtained are sequentially placed into pressing machine, pressing
10min obtains compound flat membrane；
S6, cutting: the compound flat membrane that S5 is obtained is put into cutting machine, is cut into and is woven composite braided item, keeps compound volume
The width for knitting item is 6mm；
S7, braiding: the composite braided item that S6 is obtained is put into braider and weaves, and using cutting out, suturing, is formed moisture-proof anti-
Corrode multi-layer braided bag.
Specific embodiment 2: a kind of multi-layer braided bag of Moisture-proof corrosion-proof is formed according to following raw material: high density is poly-
50 parts of ethylene, 40 parts of low density polypropylene, 15 parts of glass fibre, 20 parts of ethylene propylene diene rubber, 15 parts of polyglycolide, butadiene rubber
10 parts, 14 parts of pla-pcl, 10 parts of talcum powder, 8 parts of anilinomethyl triethoxysilane, 6 parts of modified additive, butyl tin oxide
4 parts, 3.5 parts of ricinoleic acid, 3 parts of melamine, 4 parts of stannous sulfide, 5 parts of silica flour, 5 parts of antioxidant.
A kind of production technology of the multi-layer braided bag of Moisture-proof corrosion-proof are as follows:
S1, a fused raw material: high density polyethylene (HDPE), polyglycolide, talcum powder, antioxidant are added in the ratio and are mixed
It in machine, heats, melt, stirring evenly, strengthened a layer masterbatch;
S2, second melting raw material: by low density polypropylene, ethylene propylene diene rubber, pla-pcl, modified additive is in the ratio
It is added to the mixer, heats, melts, stirs evenly, obtain waterproof layer masterbatch；
S3, three times fused raw material: by glass fibre, butadiene rubber, anilinomethyl triethoxysilane, butyl tin oxide, castor-oil plant
Oleic acid, melamine, stannous sulfide, silica flour are added to the mixer in the ratio, are heated, melt, are stirred evenly, are prevented
Corrosion layer masterbatch；
S4, extrusion: being put into extruder for strengthening layer masterbatch, waterproof layer masterbatch, corrosion-resistant coating masterbatch that S1, S2, S3 are obtained, squeezes out
Thin slice places into cooling, sizing in water, forms strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane；
S5, pressing: strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane that S4 is obtained are sequentially placed into pressing machine, pressing
12.5min obtains compound flat membrane；
S6, cutting: the compound flat membrane that S5 is obtained is put into cutting machine, is cut into and is woven composite braided item, keeps compound volume
The width for knitting item is 7mm；
S7, braiding: the composite braided item that S6 is obtained is put into braider and weaves, and using cutting out, suturing, is formed moisture-proof anti-
Corrode multi-layer braided bag.
Specific embodiment 3: a kind of multi-layer braided bag of Moisture-proof corrosion-proof is formed according to following raw material: high density is poly-
60 parts of ethylene, 50 parts of low density polypropylene, 20 parts of glass fibre, 25 parts of ethylene propylene diene rubber, 18 parts of polyglycolide, butadiene rubber
12 parts, 18 parts of pla-pcl, 12 parts of talcum powder, 10 parts of anilinomethyl triethoxysilane, 8 parts of modified additive, butyl oxidation
6 parts of tin, 5 parts of ricinoleic acid, 5 parts of melamine, 6 parts of stannous sulfide, 7 parts of silica flour, 8 parts of antioxidant.
A kind of production technology of the multi-layer braided bag of Moisture-proof corrosion-proof are as follows:
S1, a fused raw material: high density polyethylene (HDPE), polyglycolide, talcum powder, antioxidant are added in the ratio and are mixed
It in machine, heats, melt, stirring evenly, strengthened a layer masterbatch;
S2, second melting raw material: by low density polypropylene, ethylene propylene diene rubber, pla-pcl, modified additive is in the ratio
It is added to the mixer, heats, melts, stirs evenly, obtain waterproof layer masterbatch；
S3, three times fused raw material: by glass fibre, butadiene rubber, anilinomethyl triethoxysilane, butyl tin oxide, castor-oil plant
Oleic acid, melamine, stannous sulfide, silica flour are added to the mixer in the ratio, are heated, melt, are stirred evenly, are prevented
Corrosion layer masterbatch；
S4, extrusion: being put into extruder for strengthening layer masterbatch, waterproof layer masterbatch, corrosion-resistant coating masterbatch that S1, S2, S3 are obtained, squeezes out
Thin slice places into cooling, sizing in water, forms strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane；
S5, pressing: strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane that S4 is obtained are sequentially placed into pressing machine, pressing
15min obtains compound flat membrane；
S6, cutting: the compound flat membrane that S5 is obtained is put into cutting machine, is cut into and is woven composite braided item, keeps compound volume
The width for knitting item is 8mm；
S7, braiding: the composite braided item that S6 is obtained is put into braider and weaves, and using cutting out, suturing, is formed moisture-proof anti-
Corrode multi-layer braided bag.
Embodiment provided above is better embodiment of the invention, only is used to facilitate to illustrate the present invention, not to this hair
It is bright to make any form of restriction, any those of ordinary skill in the art, if not departing from the proposed skill of the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from technical feature content of the invention, in the range of still falling within the technology of the present invention feature.
Claims (4)
1. a kind of multi-layer braided bag of Moisture-proof corrosion-proof, which is characterized in that be made of raw material from the following weight: high density polyethylene (HDPE)
40-60 parts, 30-50 parts of low density polypropylene, 10-20 parts of glass fibre, 15-25 parts of ethylene propylene diene rubber, polyglycolide 10-18
Part, 6-10 parts of anilinomethyl triethoxysilane, changes 8-12 parts of butadiene rubber, 12-18 parts of pla-pcl, 6-12 parts of talcum powder
Property 4-8 parts of additive, 2-6 parts of butyl tin oxide, 2-5 parts of ricinoleic acid, 1-5 parts of melamine, 2-6 parts of stannous sulfide, quartz
3-7 parts of powder, 2-8 parts of antioxidant.
2. the multi-layer braided bag of a kind of Moisture-proof corrosion-proof according to claim 1, which is characterized in that by the original of following parts by weight
Material is made: 45-55 parts of high density polyethylene (HDPE), 35-45 parts of low density polypropylene, 13-17 parts of glass fibre, ethylene propylene diene rubber
18-22 parts, 14-16 parts of polyglycolide, 9-11 parts of butadiene rubber, 13-15 parts of pla-pcl, 9-11 parts of talcum powder, anilinomethyl
7-9 parts of triethoxysilane, 5-7 parts of modified additive, 3-5 parts of butyl tin oxide, 3-4 parts of ricinoleic acid, melamine 2-4
Part, 3-5 parts of stannous sulfide, 4-6 parts of silica flour, 4-6 parts of antioxidant.
3. the multi-layer braided bag of a kind of Moisture-proof corrosion-proof according to claim 1, which is characterized in that by the original of following parts by weight
Material composition: 50 parts of high density polyethylene (HDPE), 40 parts of low density polypropylene, 15 parts of glass fibre, 20 parts of ethylene propylene diene rubber, poly- second are handed over
15 parts of ester, 10 parts of butadiene rubber, 14 parts of pla-pcl, 10 parts of talcum powder, 8 parts of anilinomethyl triethoxysilane, modified addition
6 parts of agent, 4 parts of butyl tin oxide, 3.5 parts of ricinoleic acid, 3 parts of melamine, 4 parts of stannous sulfide, 5 parts of silica flour, antioxidant 5
Part.
4. a kind of production technology of the multi-layer braided bag of Moisture-proof corrosion-proof according to claim 1 to 3, which is characterized in that
Include the following steps:
S1, a fused raw material: high density polyethylene (HDPE), polyglycolide, talcum powder, antioxidant are added in the ratio and are mixed
It in machine, heats, melt, stirring evenly, strengthened a layer masterbatch;
S2, second melting raw material: by low density polypropylene, ethylene propylene diene rubber, pla-pcl, modified additive is in the ratio
It is added to the mixer, heats, melts, stirs evenly, obtain waterproof layer masterbatch；
S3, three times fused raw material: by glass fibre, butadiene rubber, anilinomethyl triethoxysilane, butyl tin oxide, castor-oil plant
Oleic acid, melamine, stannous sulfide, silica flour are added to the mixer in the ratio, are heated, melt, are stirred evenly, are prevented
Corrosion layer masterbatch；
S4, extrusion: being put into extruder for strengthening layer masterbatch, waterproof layer masterbatch, corrosion-resistant coating masterbatch that S1, S2, S3 are obtained, squeezes out
Thin slice places into cooling, sizing in water, forms strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane；
S5, pressing: strengthening layer flat membrane, waterproof layer flat membrane, corrosion-resistant coating flat membrane that S4 is obtained are sequentially placed into pressing machine, pressing
10-15min obtains compound flat membrane；
S6, cutting: the compound flat membrane that S5 is obtained is put into cutting machine, is cut into and is woven composite braided item, keeps compound volume
The width for knitting item is 6-8mm；
S7, braiding: the composite braided item that S6 is obtained is put into braider and weaves, and using cutting out, suturing, is formed moisture-proof anti-
Corrode multi-layer braided bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686247.1A CN109677068B (en) | 2018-06-28 | 2018-06-28 | Moisture-proof and corrosion-proof multilayer woven bag and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810686247.1A CN109677068B (en) | 2018-06-28 | 2018-06-28 | Moisture-proof and corrosion-proof multilayer woven bag and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109677068A true CN109677068A (en) | 2019-04-26 |
| CN109677068B CN109677068B (en) | 2020-09-08 |
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| CN201810686247.1A Active CN109677068B (en) | 2018-06-28 | 2018-06-28 | Moisture-proof and corrosion-proof multilayer woven bag and production process thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914240A (en) * | 2010-08-11 | 2010-12-15 | 丁飞鹏 | Regenerated wire drawing modified material of waste polypropylene woven bags and preparation method thereof |
| CN105082681A (en) * | 2014-05-12 | 2015-11-25 | 镇江市华隆纸塑材料有限公司 | Environmentally-friendly chemical woven bag and preparation method thereof |
| CN105885236A (en) * | 2016-06-27 | 2016-08-24 | 安庆石油化工总厂联盟化工厂 | Novel anti-aging woven bag |
| EP3081374A1 (en) * | 2015-04-14 | 2016-10-19 | Mondi Consumer Packaging Technologies GmbH | Composite plastic tissue, packaging bag made of a composite plastic tissue and method for producing a packaging bag |
-
2018
- 2018-06-28 CN CN201810686247.1A patent/CN109677068B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914240A (en) * | 2010-08-11 | 2010-12-15 | 丁飞鹏 | Regenerated wire drawing modified material of waste polypropylene woven bags and preparation method thereof |
| CN105082681A (en) * | 2014-05-12 | 2015-11-25 | 镇江市华隆纸塑材料有限公司 | Environmentally-friendly chemical woven bag and preparation method thereof |
| EP3081374A1 (en) * | 2015-04-14 | 2016-10-19 | Mondi Consumer Packaging Technologies GmbH | Composite plastic tissue, packaging bag made of a composite plastic tissue and method for producing a packaging bag |
| CN105885236A (en) * | 2016-06-27 | 2016-08-24 | 安庆石油化工总厂联盟化工厂 | Novel anti-aging woven bag |
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| CN109677068B (en) | 2020-09-08 |
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Denomination of invention: A moisture-proof and corrosion-resistant multi-layer woven bag and its production process Effective date of registration: 20230630 Granted publication date: 20200908 Pledgee: China Co. truction Bank Corp Dingyuan branch Pledgor: ANHUI ANYUAN PLASTICS Inc. Registration number: Y2023980047007 |
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