CN107904961A - A kind of Polyester Taffeta is resistance to tear umbrella cloth - Google Patents
A kind of Polyester Taffeta is resistance to tear umbrella cloth Download PDFInfo
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- CN107904961A CN107904961A CN201711059436.8A CN201711059436A CN107904961A CN 107904961 A CN107904961 A CN 107904961A CN 201711059436 A CN201711059436 A CN 201711059436A CN 107904961 A CN107904961 A CN 107904961A
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- Prior art keywords
- tear
- resistance
- umbrella cloth
- coating
- agent
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/103—Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
Abstract
The invention belongs to umbrella cloth technical field.The invention discloses it is a kind of it is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, and coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;Setting agent comprises the following raw materials by weight percent, and tears fastness 2~4wt% of elevator, 4~6wt% of waterproofing agent, surplus is solvent;Coating glue comprises the following raw materials by weight percent, 320 15~25wt% of glue, 20~25wt% of flexible glue, 2~4wt% of silica gel, 1~5wt% of softening agent, 2~5wt% of bridging agent, and the anti-4~8wt% of additive that becomes unwoven or untiwisted, surplus is solvent.The resistance to umbrella cloth that tears of Polyester Taffeta in the present invention has good tearing-resistant performance, it is less likely to occur situation about being torn by stress during production and use;With good feel, there is soft feel, disclosure satisfy that demand and favored;Also there is preferable water resistance.
Description
Technical field
The present invention relates to umbrella cloth technical field, and umbrella cloth is torn more particularly, to a kind of Polyester Taffeta is resistance to.
Background technology
Umbrella cloth is a kind of special cloth for being used to make umbrella etc., as the improvement of people's living standards, outdoor activities
Also gradually get up more, it is for the demand of outdoor umbrella also more vigorous.Umbrella maker factory have to the tearing-resistant performance of umbrella cloth compared with
High requirement, the poor umbrella cloth of tearing-resistant performance is not only easily torn by external force in use, but also is easily existed
Drawn and cleaved by external force in manufacturing process above, given birth in the prior art even with last conventional 210T fabrics
Production, its drawing crack that can equally become unwoven or untiwisted in actual use or production process there is a phenomenon where drawing.
The content of the invention
To solve the above problems, the present invention provides one kind to have good tearing-resistant performance, water resistance and with soft
The umbrella cloth of feel.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of Polyester Taffeta is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, it is characterised in that:
Coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;
Setting agent comprises the following raw materials by weight percent, tear fastness 2~4wt% of elevator, 4~6wt% of waterproofing agent, surplus
For solvent;
Coating glue comprises the following raw materials by weight percent, 320 15~25wt% of glue, 20~25wt% of flexible glue, and silica gel 2~
4wt%, 1~5wt% of softening agent, 2~5wt% of bridging agent, the anti-4~8wt% of additive that becomes unwoven or untiwisted, surplus is solvent.
Tear fastness elevator in setting agent has effects that the anti-tear anti-performance of becoming unwoven or untiwisted of raising fabric, can strengthen fabric
Anti-tear effect, waterproofing agent can assign fabric good waterproof effect.In coating glue, the collocation energy of 320 glue and flexible glue
Enough improve the feel of fabric face, the addition of softening agent assigns the feel of fabric face softness;Addition bridging agent and anti-addition of becoming unwoven or untiwisted
Agent can make the flexible glue of high-content be crosslinked the tearing-resistant performance that can greatly improve fabric on the surface of fabric yarn securely;
The addition of silica gel, can also further improve the tear-resistant effect of fabric.
Also need to control following parameter at the same time, machine viscosity 15000 or so on coating, 30~33g/m of glue consumption2, coat speeds
70m/min。
Preferably, tear fastness elevator is tear fastness elevator SK-90, waterproofing agent is waterproofing agent TG-529A, soft
Soft dose is dioctyl phthalate.
Preferably, the thickness of coating is 0.05~0.5mm.
Preferably, fabric is after disseminating coating glue, the temperature of baking is 100~150 DEG C, baking time for 30~
150s。
At a temperature of 100~150 DEG C, 30~150s is bakeed, the coating of fabric face can be made there is good feel, temperature
Spend it is low or excessive, baking time it is long or it is too short all fabric face feel can be made not reach requirement, wherein being bakeed at 150 DEG C
60s can obtain optimal feel, and fabric face feel at this time is fine and smooth and soft.
Preferably, solvent is by weight 0.5 by propylene glycol methyl ether acetate, ethanol:0.5~1.0 is mixed to prepare.
Propylene glycol methyl ether acetate is colourless moisture absorption liquid, there is special odor, is that one kind has multi-functional non-public hazards
Solvent, existing ehter bond in its molecule, and have carbonyl, carbonyl forms the structure of ester again, while contains alkyl again, in same molecule
In existing nonpolar moiety, and polarized part, this two-part functional group, which not only mutually restricts, to be repelled, but also each to play its intrinsic
Effect, have certain solvability to apolar substance and polar substances;Simultaneously because the solvability of single solvent has
Limit, therefore be to add a part of ethanol again in propylene glycol methyl ether acetate in configuration solvent, to strengthen the solvability of solvent,
And the usage amount of propylene glycol methyl ether acetate so can be also reduced, substantially reduces production cost.
Preferably, anti-additive of becoming unwoven or untiwisted is made by following steps:Attapulgite is small in 600~750 DEG C of calcinings 0.5~1
When, soaked respectively with hydrochloric acid solution and water 10~20 minutes successively after cooling, by 0.4~0.6 times of PE trees of attapulgite weight
Fat and the silane coupling agent of 0.1~0.3 times of attapulgite weight are dissolved in the absolute ethyl alcohol of 2~5 times of attapulgite weight, so
The attapulgite after processing is added and in 60~75 DEG C of stir process 20~40 minutes afterwards, anti-additive of becoming unwoven or untiwisted is made after drying.
Anti- additive of becoming unwoven or untiwisted is modified attapulgite.Attapulgite is a kind of inorganic mineral of staple fiber shape, it has
Preferable thixotropy, the easily modified material into lipophilic, simultaneously because the characteristics of its fiber, it can after being added in glue
Flexible glue is set to be crosslinked the tearing-resistant performance on the surface of fabric yarn, strengthening fabric face securely;In addition, outside attapulgite also
One layer of PE resin is coated, PE resins have preferable greasy property, it can make to produce between surface fiber of the fabric after adding
Sliding makes the distance between fiber diminish, and fiber spacing can increase the tearing-resistant performance of fabric after reducing, while PE resins
Addition can also strengthen the viscosity of flexible glue, increase the tearing-resistant performance of flexible glue.
Preferably, PE resins are the UHMWPE resins of molecular weight 1,500,000~2,000,000.
The PE resins of high molecular weight have lower density, the density of fabric face can be reduced, simultaneously because macromolecule
Amount PE resins have longer strand, have stronger cross-linking properties so that flexible glue is crosslinked the table in fabric yarn securely
Face, increases the tearing-resistant performance of fabric.
Preferably, the particle diameter of attapulgite is 10~40 μm.
The selection of attapulgite particle diameter follows each component that have that enough particle diameters can be in cross-linked coating, while also
Ensure particle diameter try one's best it is small avoid attapulgite addition influence fabric face feel.
Therefore, the invention has the advantages that:
(1)The resistance to umbrella cloth that tears of Polyester Taffeta in the present invention has good tearing-resistant performance, its during production and use not
There is a situation where be torn because of stress;
(2)The resistance to umbrella cloth that tears of Polyester Taffeta in the present invention has good feel, has soft feel, disclosure satisfy that demand simultaneously
Favored;
(3)The resistance to umbrella cloth that tears of Polyester Taffeta in the present invention also has preferable water resistance.
Embodiment
Technical scheme is further described with reference to embodiment.
Obviously, described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, all other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
In the present invention, if not refering in particular to, all equipment and raw material is commercially available or the industry is common,
Method in following embodiments, is this area conventional method unless otherwise instructed.
Embodiment 1
A kind of Polyester Taffeta is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, it is characterised in that:
Coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;The thickness of coating is 0.05mm;Fabric passes through
After disseminating coating glue, the temperature of baking is 100 DEG C, baking time 30s;
Setting agent comprises the following raw materials by weight percent, tear fastness elevator 2wt%, waterproofing agent 4wt%, solvent 94wt%;
Fastness elevator is torn as tear fastness elevator SK-90, waterproofing agent is waterproofing agent TG-529A, and softening agent is phthalic acid
Dioctyl ester;Solvent is by weight 0.5 by propylene glycol methyl ether acetate, ethanol:0.5 is mixed to prepare;
Coating glue comprises the following raw materials by weight percent, 320 glue 15wt%, flexible glue 20wt%, silica gel 2wt%, softening agent
1wt%, bridging agent 2wt%, anti-become unwoven or untiwisted additive 4wt%, solvent 56wt%;Solvent be by propylene glycol methyl ether acetate, ethanol by weight
Than 0.5:0.5 is mixed to prepare;
Anti- additive of becoming unwoven or untiwisted is made by following steps:By particle diameter be 10 μm attapulgite 600 DEG C calcining 0.5 it is small when, after cooling
Soaked respectively with hydrochloric acid solution and water 10 minutes successively, by the UHMWPE resins of 0.4 times of molecular weight 1,500,000 of attapulgite weight
It is dissolved in 0.1 times of silane coupling agent of attapulgite weight in the absolute ethyl alcohol of 2 times of attapulgite weight, after then handling
Attapulgite add and in 60 DEG C of stir process 20 minutes, anti-additive of becoming unwoven or untiwisted is made after drying.
Embodiment 2
A kind of Polyester Taffeta is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, it is characterised in that:
Coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;The thickness of coating is 0.15mm;Fabric passes through
After disseminating coating glue, the temperature of baking is 110 DEG C, baking time 60s;
Setting agent comprises the following raw materials by weight percent, tear fastness elevator 2.5wt%, waterproofing agent 4.5wt%, solvent
93wt%;Fastness elevator is torn as tear fastness elevator SK-90, waterproofing agent is waterproofing agent TG-529A, and softening agent is adjacent benzene
Diformazan dioctyl phthalate;Solvent is by weight 0.5 by propylene glycol methyl ether acetate, ethanol:0.6 is mixed to prepare;
Coating glue comprises the following raw materials by weight percent, 320 glue 17wt%, flexible glue 22wt%, silica gel 2.5wt%, softening agent
2wt%, bridging agent 2.5wt%, anti-become unwoven or untiwisted additive 5wt%, solvent 49wt%;Solvent is by weight by propylene glycol methyl ether acetate, ethanol
Measure ratio 0.5:0.8 is mixed to prepare;
Anti- additive of becoming unwoven or untiwisted is made by following steps:By particle diameter be 15 μm attapulgite 650 DEG C calcining 0.6 it is small when, after cooling
Soaked respectively with hydrochloric acid solution and water 12 minutes successively, by the UHMWPE trees of 0.45 times of molecular weight 1,600,000 of attapulgite weight
Fat and the silane coupling agent of 0.15 times of attapulgite weight are dissolved in the absolute ethyl alcohol of 3 times of attapulgite weight, then will place
Attapulgite after reason adds and in 65 DEG C of stir process 25 minutes, and anti-additive of becoming unwoven or untiwisted is made after drying.
Embodiment 3
A kind of Polyester Taffeta is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, it is characterised in that:
Coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;The thickness of coating is 0.3mm;Fabric is through leaching
After contaminating coating glue, the temperature of baking is 125 DEG C, baking time 90s;
Setting agent comprises the following raw materials by weight percent, tear fastness elevator 3wt%, waterproofing agent 5wt%, solvent 92wt%;
Fastness elevator is torn as tear fastness elevator SK-90, waterproofing agent is waterproofing agent TG-529A, and softening agent is phthalic acid
Dioctyl ester;Solvent is by weight 0.5 by propylene glycol methyl ether acetate, ethanol:0.75 is mixed to prepare;
Coating glue comprises the following raw materials by weight percent, 320 glue 20wt%, flexible glue 22.5wt%, silica gel 3wt%, softening agent
3wt%, bridging agent 3.5wt%, anti-become unwoven or untiwisted additive 6wt%, solvent 42wt%;Solvent is by weight by propylene glycol methyl ether acetate, ethanol
Measure ratio 0.5:0.75 is mixed to prepare;
Anti- additive of becoming unwoven or untiwisted is made by following steps:By particle diameter be 25 μm attapulgite 675 DEG C calcining 0.75 it is small when, after cooling
Soaked respectively with hydrochloric acid solution and water 15 minutes successively, by the UHMWPE resins of 0.5 times of molecular weight 1,750,000 of attapulgite weight
It is dissolved in 0.2 times of silane coupling agent of attapulgite weight in the absolute ethyl alcohol of 3.5 times of attapulgite weight, then will processing
Rear attapulgite adds and in 67 DEG C of stir process 30 minutes, and anti-additive of becoming unwoven or untiwisted is made after drying.
Embodiment 4
A kind of Polyester Taffeta is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, it is characterised in that:
Coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;The thickness of coating is 0.4mm;Fabric is through leaching
After contaminating coating glue, the temperature of baking is 140 DEG C, baking time 120s;
Setting agent comprises the following raw materials by weight percent, tear fastness elevator 3.5wt%, waterproofing agent 5.5wt%, solvent
91wt%;Fastness elevator is torn as tear fastness elevator SK-90, waterproofing agent is waterproofing agent TG-529A, and softening agent is adjacent benzene
Diformazan dioctyl phthalate;Solvent is by weight 0.5 by propylene glycol methyl ether acetate, ethanol:0.8 is mixed to prepare;
Coating glue comprises the following raw materials by weight percent, 320 glue 22wt%, flexible glue 23wt%, silica gel 3.5wt%, softening agent
4wt%, bridging agent 4.5wt%, anti-become unwoven or untiwisted additive 7wt%, solvent 36wt%;Solvent is by weight by propylene glycol methyl ether acetate, ethanol
Measure ratio 0.5:0.6 is mixed to prepare;
Anti- additive of becoming unwoven or untiwisted is made by following steps:By particle diameter be 30 μm attapulgite 700 DEG C calcining 0.8 it is small when, after cooling
Soaked respectively with hydrochloric acid solution and water 17 minutes successively, by the UHMWPE trees of 0.55 times of molecular weight 1,800,000 of attapulgite weight
Fat and the silane coupling agent of 0.25 times of attapulgite weight are dissolved in the absolute ethyl alcohol of 4 times of attapulgite weight, then will place
Attapulgite after reason adds and in 70 DEG C of stir process 35 minutes, and anti-additive of becoming unwoven or untiwisted is made after drying.
Embodiment 5
A kind of Polyester Taffeta is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, it is characterised in that:
Coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;The thickness of coating is 0.5mm;Fabric is through leaching
After contaminating coating glue, the temperature of baking is 150 DEG C, baking time 150s;
Setting agent comprises the following raw materials by weight percent, tear fastness elevator 4wt%, waterproofing agent 6wt%, solvent 90wt%;
Fastness elevator is torn as tear fastness elevator SK-90, waterproofing agent is waterproofing agent TG-529A, and softening agent is phthalic acid
Dioctyl ester;Solvent is by weight 0.5 by propylene glycol methyl ether acetate, ethanol:1.0 it is mixed to prepare;
Coating glue comprises the following raw materials by weight percent, 320 glue 25wt%, flexible glue 25wt%, silica gel 4wt%, softening agent
5wt%, bridging agent 5wt%, anti-become unwoven or untiwisted additive 8wt%, solvent 28wt%;Solvent be by propylene glycol methyl ether acetate, ethanol by weight
Than 0.5:1.0 it is mixed to prepare;
Anti- additive of becoming unwoven or untiwisted is made by following steps:By particle diameter be 40 μm attapulgite 750 DEG C calcining 1 it is small when, after cooling according to
It is secondary to be soaked respectively with hydrochloric acid solution and water 20 minutes, by the UHMWPE resins of 0.6 times of molecular weight 2,000,000 of attapulgite weight and
The silane coupling agent that 0.3 times of attapulgite weight is dissolved in the absolute ethyl alcohol of 5 times of attapulgite weight, then by after processing
Attapulgite adds and in 75 DEG C of stir process 40 minutes, and anti-additive of becoming unwoven or untiwisted is made after drying.
Technical indicator:
The umbrella cloth that tears resistance to the Polyester Taffeta in above-described embodiment carries out tear-resistant intensity, waterproof effect and water resistance progress respectively
Measure;Bioassay standard and result are as follows:
1. pass through ISO13937-1:2000 pendulum method fabric tear strengths measure, and 2LBS is all higher than through the tear-resistant intensity of broadwise;
2. tested by AATCC22 fabric water repellency spray process method of testing, more than waterproof effect 90 divides;;
3. water pressure resistance value 350mm.H2More than O.
It should be appreciated that to those skilled in the art, it can according to the above description be improved or be become
Change, and all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (8)
1. a kind of Polyester Taffeta is resistance to tear umbrella cloth, it is made of the coating of fabric and fabric surface, it is characterised in that:
The coating is disseminated setting agent and coating glue by fabric and is made after bakeing successively;
The setting agent comprises the following raw materials by weight percent, tear fastness 2~4wt% of elevator, and waterproofing agent 4~
6wt%, surplus are solvent;
The coating glue comprises the following raw materials by weight percent, 320 15~25wt% of glue, 20~25wt% of flexible glue, silicon
2~4wt% of glue, 1~5wt% of softening agent, 2~5wt% of bridging agent, the anti-4~8wt% of additive that becomes unwoven or untiwisted, surplus is solvent.
2. a kind of Polyester Taffeta according to claim 1 is resistance to tear umbrella cloth, it is characterised in that:
The tear fastness elevator is tear fastness elevator SK-90, and the waterproofing agent is waterproofing agent TG-529A, institute
The softening agent stated is dioctyl phthalate.
3. a kind of Polyester Taffeta according to claim 1 is resistance to tear umbrella cloth, it is characterised in that:
The thickness of the coating is 0.05~0.1mm.
4. a kind of Polyester Taffeta according to claim 1 is resistance to tear umbrella cloth, it is characterised in that:
The fabric is after disseminating coating glue, and the temperature of baking is 100~150 DEG C, and baking time is 30~150s.
5. a kind of Polyester Taffeta according to claim 1 is resistance to tear umbrella cloth, it is characterised in that:
The solvent is by weight 0.5 by propylene glycol methyl ether acetate, ethanol:0.5~1.0 is mixed to prepare.
6. a kind of Polyester Taffeta according to claim 1 is resistance to tear umbrella cloth, it is characterised in that it is described it is anti-become unwoven or untiwisted additive by with
Lower step is made:By attapulgite when 600~750 DEG C of calcinings 0.5~1 are small, distinguished successively with hydrochloric acid solution and water after cooling
Immersion 10~20 minutes, by the PE resins of 0.4~0.6 times of attapulgite weight and the silane of 0.1~0.3 times of attapulgite weight
Coupling agent is dissolved in the absolute ethyl alcohol of 2~5 times of attapulgite weight, then add the attapulgite after processing and 60~
75 DEG C of stir process 20~40 minutes, are made anti-additive of becoming unwoven or untiwisted after drying.
7. a kind of Polyester Taffeta according to claim 6 is resistance to tear umbrella cloth, it is characterised in that:
The PE resins are the UHMWPE resins of molecular weight 1,500,000~2,000,000.
8. a kind of Polyester Taffeta according to claim 6 is resistance to tear umbrella cloth, it is characterised in that:
The particle diameter of the attapulgite is 10~40 μm.
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CN113186737A (en) * | 2021-06-01 | 2021-07-30 | 福建集成伞业有限公司 | Invisible printing process for plain umbrella cloth |
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CN113186737A (en) * | 2021-06-01 | 2021-07-30 | 福建集成伞业有限公司 | Invisible printing process for plain umbrella cloth |
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