CN111485311A - Novel sun-proof fabric and production method thereof - Google Patents

Novel sun-proof fabric and production method thereof Download PDF

Info

Publication number
CN111485311A
CN111485311A CN202010336362.3A CN202010336362A CN111485311A CN 111485311 A CN111485311 A CN 111485311A CN 202010336362 A CN202010336362 A CN 202010336362A CN 111485311 A CN111485311 A CN 111485311A
Authority
CN
China
Prior art keywords
ultraviolet
fiber
sun
finishing agent
proof
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.)
Withdrawn
Application number
CN202010336362.3A
Other languages
Chinese (zh)
Inventor
徐洪斌
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.)
Ningbo Kocotree Network Technology Co ltd
Original Assignee
Ningbo Kocotree Network Technology Co ltd
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 Ningbo Kocotree Network Technology Co ltd filed Critical Ningbo Kocotree Network Technology Co ltd
Priority to CN202010336362.3A priority Critical patent/CN111485311A/en
Publication of CN111485311A publication Critical patent/CN111485311A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • D01F1/106Radiation shielding agents, e.g. absorbing, reflecting agents
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/43Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with differing diameters
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/02Cotton
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/02Moisture-responsive characteristics
    • D10B2401/021Moisture-responsive characteristics hydrophobic
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/13Physical properties anti-allergenic or anti-bacterial
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/22Physical properties protective against sunlight or UV radiation

Abstract

The invention provides a novel sun-proof fabric and a production method thereof, wherein the novel sun-proof fabric is woven by warps and wefts, the warps and the wefts are sun-proof fibers, and an anti-ultraviolet finishing agent is added into the sun-proof fibers; the ultraviolet-resistant finishing agent comprises an ultraviolet absorber and an ultraviolet screening agent; the ultraviolet absorbent comprises benzophenone compounds, benzotriazole compounds, reactive ultraviolet absorbent and aliphatic polyol compounds. The novel sun-proof fabric has cool touch, good moisture absorption and air permeability, light and air permeability, certain waterproof performance and sterilization performance, and good clothing feel; wherein, the preparation of the warp and the weft is added with the anti-ultraviolet finishing agent, which can effectively realize the sun-proof function.

Description

Novel sun-proof fabric and production method thereof
Technical Field
The invention belongs to the field of textile manufacturing, and particularly relates to a novel sun-proof fabric and a production method thereof.
Background
With the improvement of living standard of people, the public demand for clothing products is higher and higher. The ultraviolet light in sunlight can make the skin dark, and under prolonged sun exposure, sensitive skin can develop erythema or allergic reactions, and even more can develop skin cancer or melanoma.
At present, a plurality of sun-blocking clothes with ultraviolet ray resisting function appear on the market, which belong to the hot-selling products in recent years, but the quality of the products is not uniform. How to enable the sun-proof fabric to be capable of effectively preventing sun, absorbing moisture, ventilating and comfortable to wear is a final goal pursued.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a novel sun-proof fabric and a production method thereof, wherein the sun-proof fabric can effectively prevent sun, absorb moisture and ventilate, and is high in wearing comfort.
The purpose of the invention is realized by the following technical scheme:
the novel sun-proof fabric is woven by warps and wefts, the warps and the wefts are sun-proof fiber blended yarns, and an anti-ultraviolet finishing agent is added into the sun-proof fiber blended yarns.
Further, the ultraviolet-resistant finishing agent comprises an ultraviolet absorber and an ultraviolet screening agent.
Further, the ultraviolet absorber includes benzophenone compounds, benzotriazole compounds, reactive ultraviolet absorbers and aliphatic polyol compounds.
Further, the ultraviolet screening agent includes zinc oxide and titanium dioxide.
Furthermore, the fiber in the sun-proof fiber is one of polyester fiber, nylon, pure cotton fiber and mint fiber.
Further, the diameter of the warp is 45-50 μm, and the titer of the warp is 155-165 dtex; the diameter of the weft is 35-45 μm, and the titer of the weft is 145-155 dtex.
Another aspect of the invention:
the production method of the novel sun-proof fabric comprises the following steps:
(1) grinding the anti-ultraviolet finishing agent in a ball mill, heating the ground finishing agent in a carbonization furnace to 180-200 ℃, treating at high temperature for 5-10 min, then cooling and discharging, and drying for 8-10h by using a vacuum drum dryer to obtain anti-ultraviolet finishing agent powder;
(2) preparing warp yarns: adding the anti-ultraviolet finishing agent powder into the fiber, extruding and melting the fiber by using a double-screw extruder, spraying the fiber through a hollow anisotropic spinneret orifice, and cooling and solidifying the fiber to form the anti-ultraviolet fiber;
the weight parts of the fibers in the warp and the ultraviolet-resistant finishing agent powder are as follows:
the ratio of the fiber to the ultraviolet-resistant finishing agent powder is 50-80: 10-20;
(3) weft yarn preparation: adding the anti-ultraviolet finishing agent powder into the fiber, extruding and melting the fiber by using a double-screw extruder, spraying the fiber through a hollow anisotropic spinneret orifice, and cooling and solidifying the fiber to form the anti-ultraviolet fiber;
the weight parts of the fibers in the warp and the ultraviolet-resistant finishing agent powder are as follows:
the ratio of the fiber to the ultraviolet-resistant finishing agent powder is 50-80: 20-30;
(4) and (3) guiding the prepared warp yarns and weft yarns into a water jet loom, and vertically interweaving 2-4 warp yarns and one weft yarn to prepare the novel sun-proof fabric by a shuttle weaving method of 2-4: 1 of warp yarns and weft yarns.
Further, the production method further comprises dyeing and color fixing treatment of the novel sun-proof fabric.
Further, the speed of the water jet loom is 450-500 rpm.
Further, the dyeing and color fixing treatment is carried out by dyeing with an acid dye secondary bath dyeing method and then fixing with an acid color fixing agent.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the novel sun-proof fabric, the anti-ultraviolet finishing agent is subjected to ball grinding treatment in a ball grinding machine and then subjected to high-temperature treatment, and the treated anti-ultraviolet finishing agent powder is added into fibers, so that the moisture absorption and sweat releasing functions of the fabric are not affected;
2. the novel sun-proof fabric has cool touch, good moisture absorption and air permeability, light and air permeability, certain waterproof performance and sterilization performance, and good clothing feel; wherein, the preparation of the warp and the weft is added with the anti-ultraviolet finishing agent, which can effectively realize the sun-proof function.
Detailed Description
In order to make the disclosure of the present invention easier to understand, the technical solutions of the present invention are described in more detail below with reference to specific embodiments, but the scope of the present invention is not limited thereto.
Example 1
The embodiment provides a novel sun-proof fabric, the sun-proof fabric is woven by warp and weft, warp and weft are sun-proof fiber blended yarns, and an anti-ultraviolet finishing agent is added into the sun-proof fiber blended yarns.
The warp is prepared from the following raw materials in parts by weight:
polyester fiber 50
An anti-ultraviolet finishing agent 15;
the anti-ultraviolet finishing agent is zinc oxide.
The warp is prepared from the following raw materials in parts by weight:
polyester fiber 80
An anti-ultraviolet finishing agent 25;
the anti-ultraviolet finishing agent is 1, 2, 3 benzotriazole.
The production method of the novel sun-proof fabric comprises the following steps:
(1) grinding the anti-ultraviolet finishing agent in a ball mill, heating the ground finishing agent in a carbonization furnace to 180-200 ℃, treating at high temperature for 10min, then cooling and discharging, and drying for 8h by using a vacuum drum dryer to respectively obtain zinc oxide powder and 1, 2, 3 benzotriazole powder;
(2) preparing warp yarns: adding the zinc oxide powder into the fibers, extruding and melting the mixture by using a double-screw extruder, spraying the mixture through hollow opposite spinneret orifices, and cooling and solidifying the mixture to form the anti-ultraviolet fibers;
(3) weft yarn preparation: adding the anti-ultraviolet finishing agent powder into the fiber, extruding and melting the fiber by using a double-screw extruder, spraying the fiber through a hollow anisotropic spinneret orifice, and cooling and solidifying the fiber to form the anti-ultraviolet fiber;
(4) and (3) guiding the prepared warp yarns and weft yarns into a water jet loom, and vertically interweaving every 3 warp yarns and one weft yarn by a weaving method of which the ratio of the warp yarns to the weft yarns is 3: 1 to prepare the novel sun-proof fabric.
The diameter of the warp is 45 mu m, and the titer of the warp is 155 dtex; the diameter of the weft is 40 mu m, and the fineness of the weft is 150 dtex.
Example 2
The embodiment provides a novel sun-proof fabric, the sun-proof fabric is woven by warp and weft, warp and weft are sun-proof fiber blended yarns, and an anti-ultraviolet finishing agent is added into the sun-proof fiber blended yarns.
The warp is prepared from the following raw materials in parts by weight:
nylon 70
An anti-ultraviolet finishing agent 15;
the anti-ultraviolet finishing agent is benzophenone.
The warp is prepared from the following raw materials in parts by weight:
nylon 70
An anti-ultraviolet finishing agent 30;
the anti-ultraviolet finishing agent is 1, 2, 3 benzotriazole.
The production method of the novel sun-proof fabric comprises the following steps:
(1) grinding the anti-ultraviolet finishing agent in a ball mill, heating the ground finishing agent in a carbonization furnace to 180-200 ℃, treating for 15min at high temperature, then cooling and discharging, and drying for 10h by using a vacuum drum dryer to respectively obtain benzophenone powder and 1, 2, 3-benzotriazole powder;
(2) preparing warp yarns: adding the benzophenone powder into the fiber, extruding and melting the benzophenone powder by using a double-screw extruder, spraying the benzophenone powder through a hollow anisotropic spinneret orifice, and cooling and solidifying the benzophenone powder to form the anti-ultraviolet fiber;
(3) weft yarn preparation: adding the anti-ultraviolet finishing agent powder into the fiber, extruding and melting the fiber by using a double-screw extruder, spraying the fiber through a hollow anisotropic spinneret orifice, and cooling and solidifying the fiber to form the anti-ultraviolet fiber;
(4) and (3) guiding the prepared warp yarns and weft yarns into a water jet loom, and vertically interweaving every 2 warp yarns and one weft yarn by a weaving method of 2: 1 of the warp yarns and the weft yarns to prepare the novel sun-proof fabric.
The diameter of the warp is 50 mu m, and the titer of the warp is 160 dtex; the diameter of the weft is 45 mu m, and the fineness of the weft is 155 dtex.
The sun-screening performance of the novel sun-screening fabric in the embodiment is detected, and the detection result is shown as the following table:
UVA/% UPF
example 1 0.05 2000
Example 2 0.04 2000
The novel sun-proof fabrics in the embodiments 1 and 2 have good sun-proof performance.
Finally, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims (10)

1. The novel sun-proof fabric is woven by warps and wefts and is characterized in that the warps and the wefts are sun-proof fibers, and an ultraviolet-resistant finishing agent is added into the sun-proof fibers.
2. The novel sun protection fabric according to claim 1, wherein the ultraviolet-resistant finishing agent comprises an ultraviolet absorber and an ultraviolet screening agent.
3. The novel sun protection fabric according to claim 2, wherein the ultraviolet absorber comprises benzophenone compounds, benzotriazole compounds, reactive ultraviolet absorbers and aliphatic polyol compounds.
4. The novel sun protection fabric according to claim 2, wherein the ultraviolet screening agent comprises zinc oxide and titanium dioxide.
5. The novel sun-proof fabric according to claim 1, wherein the fibers in the sun-proof fibers are one of polyester fibers, nylon, pure cotton fibers and mint fibers.
6. The novel sun-proof fabric as claimed in any one of claims 1 to 5, wherein the diameter of the warp is 45-50 μm, and the titer of the warp is 155-165 dtex; the diameter of the weft is 35-45 μm, and the titer of the weft is 145-155 dtex.
7. A method for producing a novel sun protection fabric according to any one of claims 1 to 5, characterized in that the production method comprises the following steps:
(1) grinding the anti-ultraviolet finishing agent in a ball mill, heating the ground finishing agent in a carbonization furnace to 180-200 ℃, treating at high temperature for 5-10 min, then cooling and discharging, and drying for 8-10h by using a vacuum drum dryer to obtain anti-ultraviolet finishing agent powder;
(2) preparing warp yarns: adding the anti-ultraviolet finishing agent powder into the fiber, extruding and melting the fiber by using a double-screw extruder, spraying the fiber through a hollow anisotropic spinneret orifice, and cooling and solidifying the fiber to form the anti-ultraviolet fiber;
the weight parts of the fibers in the warp and the ultraviolet-resistant finishing agent powder are as follows:
the ratio of the fiber to the ultraviolet-resistant finishing agent powder is 50-80: 10-20;
(3) weft yarn preparation: adding the anti-ultraviolet finishing agent powder into the fiber, extruding and melting the fiber by using a double-screw extruder, spraying the fiber through a hollow anisotropic spinneret orifice, and cooling and solidifying the fiber to form the anti-ultraviolet fiber;
the weight parts of the fibers in the warp and the ultraviolet-resistant finishing agent powder are as follows:
the ratio of the fiber to the ultraviolet-resistant finishing agent powder is 50-80: 20-30;
(4) and (3) guiding the prepared warp yarns and weft yarns into a water jet loom, and vertically interweaving 2-4 warp yarns and one weft yarn to prepare the novel sun-proof fabric by a shuttle weaving method of 2-4: 1 of warp yarns and weft yarns.
8. The production method of the novel sun-proof fabric according to claim 7, characterized in that the production method further comprises dyeing and fixing the novel sun-proof fabric.
9. The production method of the novel sun-proof fabric as claimed in claim 7, wherein the speed of the water jet loom is 450-500 rpm.
10. The production method of the novel sun-proof fabric according to claim 8, wherein the dyeing and color fixing treatment is carried out by using an acid dye secondary bath dyeing method, and then the color fixing is carried out by using an acid color fixing agent.
CN202010336362.3A 2020-04-23 2020-04-23 Novel sun-proof fabric and production method thereof Withdrawn CN111485311A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010336362.3A CN111485311A (en) 2020-04-23 2020-04-23 Novel sun-proof fabric and production method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010336362.3A CN111485311A (en) 2020-04-23 2020-04-23 Novel sun-proof fabric and production method thereof

Publications (1)

Publication Number Publication Date
CN111485311A true CN111485311A (en) 2020-08-04

Family

ID=71792201

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010336362.3A Withdrawn CN111485311A (en) 2020-04-23 2020-04-23 Novel sun-proof fabric and production method thereof

Country Status (1)

Country Link
CN (1) CN111485311A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114855336A (en) * 2022-06-06 2022-08-05 绍兴越灵科技有限公司 Preparation method of unidirectional moisture-conducting sun-proof fabric
CN115387001A (en) * 2022-09-30 2022-11-25 东丽酒伊织染(南通)有限公司 Breathable quick-drying sun-proof air window fabric and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114855336A (en) * 2022-06-06 2022-08-05 绍兴越灵科技有限公司 Preparation method of unidirectional moisture-conducting sun-proof fabric
CN115387001A (en) * 2022-09-30 2022-11-25 东丽酒伊织染(南通)有限公司 Breathable quick-drying sun-proof air window fabric and preparation method thereof

Similar Documents

Publication Publication Date Title
US10422063B2 (en) Method for preparing hollow textile with core-spun yarn of short-staple wrapped microporous alkali-soluble polyester filament
CN101324000B (en) Production method of memory function lining
WO2017071201A1 (en) Functional nylon 66 fabric and manufacturing method thereof
CN109056181B (en) Preparation method of anti-ultraviolet fabric and anti-ultraviolet fabric
CN111485311A (en) Novel sun-proof fabric and production method thereof
CN106012214A (en) Jacquard acetic acid filament home textile fabric and production method thereof
CN103820939A (en) Uvioresistant fleece fabric and preparation method thereof
CN101613900B (en) Acetate synthetic fabric and manufacturing method thereof
JP6659394B2 (en) Thermal barrier fabrics and textile products
CN105442147B (en) A kind of preparation method of uvioresistant far infrared ecological fabrics
CN108914310A (en) A kind of sunscreen fabric and preparation method thereof
CN108977988A (en) Sunscreen fabric and preparation method thereof
CN111067169A (en) Moisture-absorbing antibacterial polyester fabric and preparation method thereof
KR101049186B1 (en) Polyester Spinning Yarn and Manufacturing Method Thereof
CN115852556A (en) Ultraviolet-proof polyester fabric and manufacturing method thereof
CN110714256A (en) Ultraviolet-proof and sun-proof fabric and production method thereof
CN115029853A (en) Strong sun-proof knitted double-sided cloth and preparation method thereof
JP2012001826A (en) Heat insulating fabric and fabric product
CN108978283A (en) A kind of preparation process of ultra-thin uvioresistant cotton synthetic fibre fabric
CN113427845A (en) Anti-ultraviolet antibacterial cloth
JP7111495B2 (en) Thermal barrier fabrics and textiles
CN108532107B (en) Preparation method of blended silk-like fabric
CN106868698A (en) A kind of manufacturing process of the blended yarn weaved fabric with hydrophilic modifying polyester fiber
JP5770981B2 (en) Thermal barrier knitted fabric and clothing
CN218477226U (en) Antibacterial flame-retardant nylon yarn-spun composite fabric

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20200804