CN112647174A - Flame-retardant yarn, fabric, corresponding manufacturing method, finishing method and garment - Google Patents
Flame-retardant yarn, fabric, corresponding manufacturing method, finishing method and garment Download PDFInfo
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- CN112647174A CN112647174A CN202011469034.7A CN202011469034A CN112647174A CN 112647174 A CN112647174 A CN 112647174A CN 202011469034 A CN202011469034 A CN 202011469034A CN 112647174 A CN112647174 A CN 112647174A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 193
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Images
Classifications
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/047—Blended or other yarns or threads containing components made from different materials including aramid fibres
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/441—Yarns or threads with antistatic, conductive or radiation-shielding properties
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/442—Cut or abrasion resistant yarns or threads
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres 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]
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/14—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polycondensates of cyclic compounds, e.g. polyimides, polybenzimidazoles
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to a flame-retardant yarn, a fabric, a corresponding manufacturing method, a finishing method and a garment, wherein the flame-retardant yarn comprises a first single-strand yarn and a second single-strand yarn which are matched with each other; the first single-strand yarn is a core-spun yarn, the core-spun yarn comprises a core yarn and a blended fiber yarn coated on the outer surface of the core yarn, the core yarn is not easy to deform, and the blended fiber yarn has the characteristic of easy slippage of molten metal; the second single-stranded yarn contains pre-oxidized fiber, low-melting-point polyester fiber and flame-retardant polyester fiber, and the flame-retardant fabric formed by the flame-retardant yarn is combined with a corresponding post-finishing method to be made into clothes, so that the clothes can be effectively subjected to flame-retardant protection. The flame-retardant yarn, the fabric, the corresponding manufacturing method, the finishing method and the garment have the characteristics of convenience in production, good using effect and low price, can be better applied to the field of production and manufacturing, and further provide guarantee for the construction operation safety of operators.
Description
Technical Field
The invention relates to the field of textile weaving, in particular to flame-retardant yarn, fabric, corresponding manufacturing and finishing methods and clothing.
Background
Metal smelters or welders generally need to work under conditions of high temperature, molten metal splashing, high heat radiation and the like. During the working process, the liquid metal temperature is extremely high, such as: the temperature of the liquid aluminum can reach 800 ℃, the temperature of the molten steel can reach 1400 ℃, the molten liquid metal is easy to splash, and protective measures need to be taken in the working process, for example, protective clothing is worn correctly, and the body is easily injured by splashing molten metal.
In order to avoid the damage of high-temperature metal to human body, the protective clothing has specific requirements on the protective performance:
the anti-molten metal splashing fabric with the functions of flame retardance, metal splashing prevention and the like is needed to be suitable for manufacturing protective clothing, and particularly, the fabric is not easy to scald when molten liquid metal splashes on the anti-molten metal splashing fabric, so that the skin cannot be scalded. The specific protection characteristic requirements are as follows:
firstly, the fabric needs to have excellent molten metal splashing slippage resistance, at the moment, the high-temperature molten metal splashing on the clothes can quickly slip, the high-temperature molten metal is not easy to hook and accumulate, and the skin of a wearer is protected;
secondly, the fabric needs to have incomparable molten metal tolerance and heat insulation performance, and at the moment, the fabric can not only tolerate the high temperature of molten metal, but also needs excellent heat insulation performance (low heat conduction), so that the safety of a wearer is protected.
At present, the protective clothing fabric applicable to the market and capable of preventing molten metal from splashing mainly comprises five types:
1) the flame-retardant cotton fabric is processed by a post-processing technology, has a good fireproof effect, but has a general metal melt slippage effect, the residual strength of the slippage-resistant cotton fabric is low, the strength and the flame-retardant property of the fabric are gradually reduced along with the increase of the washing times, the fabric is thick and heavy, the yarn count is thick, the wearing comfort is poor, the dimensional stability is poor, the fabric contains formaldehyde, the skin can be allergic after long-time contact, in addition, ammonia gas is needed for fumigation in the flame-retardant post-processing process, the ammonia gas has strong pungent smell, and the excessive ammonia gas is harmful to human bodies;
2) the flame-retardant aluminum composite fabric and the aluminum film composite protective clothing have good heat radiation reflecting performance, but the protective clothing has the defects of poor air permeability and difficult slippage compared with the flame-retardant cotton fabric molten metal, so that the protective functionality and the comfort can not meet the requirements;
3) the blended fabric or pure-spun fabric taking the high-performance intrinsic flame-retardant fiber as the main body, such as polyimide, PBO, polysulfonamide, aramid fiber and the like, has high heat resistance, and fiber hairiness in the fabric cannot be instantly burnt or shrunk, so that molten metal is continuously accumulated and is not easy to slip, and heat accumulation and conduction are caused to scald skin.
4) The flame-retardant protective fabric blended by the wool fibers and the flame-retardant viscose is a more common variety used in the market, and has excellent sliding performance when molten metal is splashed, because the hairiness of the fibers is rapidly shrunk or damaged when the wool fibers and the viscose meet the molten metal, metal molten drops are not easy to hook, and the flame-retardant protective fabric has excellent protective performance, but the fabric containing the wool has poor washing shrinkage resistance.
5) The cowhide and cowhide protective clothing has high cost, is thick and has poor comfort level, cannot be made into complete clothing, and lacks the all-round protection to the human body.
6) The pre-oxidized fiber fabric has high temperature resistance, good metal solution slippage performance due to low fiber strength, poor wearability, poor wear resistance and hair falling after washing.
Therefore, the design and development of the metal melt drop resistant protective fabric with excellent metal melt slipping performance, flame retardance and good wearability has practical market significance.
Disclosure of Invention
The invention provides flame-retardant yarn and fabric with good molten metal slippage performance, flame retardance and good wearability, corresponding manufacturing and finishing methods and clothes.
In order to achieve the above object, the flame-retardant yarn, the fabric, the corresponding manufacturing and finishing method and the garment of the present invention have the following constitutions:
the flame-retardant yarn is mainly characterized by comprising a first single-stranded yarn and a second single-stranded yarn which are matched with each other;
the first single-strand yarn is a core-spun yarn, the core-spun yarn comprises a core yarn and a blended fiber yarn coated on the outer surface of the core yarn, the core yarn is not easy to deform, and the blended fiber yarn has the characteristic of easy slippage of molten metal;
the second single-stranded yarn comprises pre-oxidized fiber, low-melting-point polyester fiber and flame-retardant polyester fiber.
Preferably, said first singles yarn strength is not less than 350 CN;
the limiting oxygen index of the first single-strand yarn is not lower than 26%;
the limiting oxygen index of the second single-strand yarn is not lower than 30%.
Preferably, the core yarn is made of any one of polyester filament, flame-retardant polyester filament, nylon filament or flame-retardant nylon filament.
Preferably, the core yarn is made of flame-retardant high-temperature-resistant yarn.
Preferably, the fineness of the core yarn is 20-100D.
Preferably, the blended fiber yarn comprises wool fiber and flame-retardant viscose fiber.
Preferably, the mass ratio of the fibers in the blended fiber yarn is as follows:
30-80% wool fibers;
20-70% of flame-retardant viscose fiber.
More preferably, the blended fiber yarn further comprises:
0-10% of flame-retardant nylon fiber;
0-2% of antistatic fiber.
Preferably, the mass ratio of the pre-oxidized fiber, the low-melting polyester fiber and the flame-retardant polyester fiber in the second single-strand yarn is as follows:
70-90% of pre-oxidized silk fiber;
5-10% of low-melting point polyester fiber;
0-30% of flame-retardant polyester fiber.
The flame-retardant fabric is characterized in that the flame-retardant fabric is woven by the flame-retardant yarns, wherein the flame-retardant yarns are formed by the first single-strand yarns and the second single-strand yarns which are connected in a cabling mode, and the yarn count of the first single-strand yarns is not higher than that of the second single-strand yarns.
Preferably, the specification range of the yarn count of the first single-strand yarn is as follows: ne: 10/1-30/1 s;
the specification range of the yarn count of the second single-strand yarn is as follows: ne: 20/1-40/1 s.
Preferably, the flame-retardant fabric is in any one of a plain, twill or satin structure.
The flame-retardant fabric is mainly characterized in that the flame-retardant fabric is formed by interweaving a first single-strand yarn and a second single-strand yarn in the flame-retardant yarn, and the yarn count of the first single-strand yarn is higher than that of the second single-strand yarn;
in the flame-retardant fabric, the first single-strand yarn floats on the surface, and the second single-strand yarn sinks on the back.
Preferably, when the first single-strand yarn and the second single-strand yarn are interwoven in both the warp direction and the weft direction of the flame-retardant fabric, the fabric tightness of the flame-retardant fabric is not lower than 90%;
when the warp yarn of the flame-retardant fabric is interwoven by the first single-strand yarn and the weft yarn of the flame-retardant fabric is interwoven by the second single-strand yarn, the fabric tightness of the flame-retardant fabric is not lower than 65%.
The flame-retardant garment is mainly characterized by comprising the flame-retardant fabric.
The manufacturing method for the flame-retardant yarn is mainly characterized by comprising the following steps:
-covering said blended yarn with said core yarn in an outer layer to produce said first single-strand yarn;
-mixing said pre-oxidized fiber, low-melting polyester fiber and flame-retardant polyester fiber, and spinning to obtain said second single-strand yarn;
-joining said first singles yarn to said second singles yarn to produce said flame-retardant yarn.
Preferably, the covering of the blended fiber yarn on the outer layer of the core yarn by using a core-spun method to prepare the first single-strand yarn comprises the following steps:
(a1) the core yarn is made of any silk yarn of polyester filament yarn, flame-retardant polyester filament yarn, nylon filament yarn, flame-retardant nylon filament yarn or flame-retardant high-temperature-resistant yarn;
(a2) and coating the blended fiber yarn at least comprising wool fibers and flame-retardant viscose fibers on the outer layer of the core yarn to prepare the first single-strand yarn.
Preferably, the flame-retardant yarn obtained by combining the first single-strand yarn and the second single-strand yarn is:
the first single-strand yarn and the second single-strand yarn are twisted and connected to prepare the flame-retardant yarn; or
And overlapping and connecting the first single-strand yarn and the second single-strand yarn to prepare the flame-retardant yarn.
The finishing method applied to the flame-retardant fabric is mainly characterized by comprising the following steps of:
dyeing and finishing, open width washing, drying and shaping, shearing, adding an auxiliary agent and decating.
Preferably, the temperature for drying and shaping is not lower than 120 ℃ and not higher than 180 ℃.
The corresponding flame-retardant fabric and garment formed by the flame-retardant yarn can well protect, solve the problems of high washing shrinkage and water intolerance, have high temperature resistance, and effectively improve the molten metal tolerance of the fabric. The protective fabric made of the flame-retardant fabric is good in protective effect and low in price, can be better applied to the field of production and manufacturing, and further provides guarantee for the safety of construction operation of operators.
Drawings
Fig. 1 is a schematic representation of the structure of a first single strand yarn of the present invention in one embodiment.
Fig. 2 is a schematic representation of the structure of a second single strand yarn of the present invention in one embodiment.
Fig. 3 is a schematic structural view of a flame-retardant yarn of the present invention in one embodiment.
FIG. 4 is a schematic representation of a weave pattern.
Reference numerals
1 first Mono-strand yarn
11-core yarn
12 blend fiber yarn
2 second single strand yarn
Detailed Description
In order to more clearly describe the technical contents of the present invention, the following further description is given in conjunction with specific embodiments.
The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, in one embodiment, the flame-retardant yarn of the present invention includes a first single-strand yarn 1 and a second single-strand yarn 2 used in cooperation with each other;
the first single-strand yarn 1 is a core-spun yarn, the core-spun yarn comprises a core yarn 11 and a blended fiber yarn 12 covering the outer surface of the core yarn 11, the core yarn 11 is not easy to deform, and the blended fiber yarn 12 has molten metal slippage easiness;
the second single-stranded yarn 2 contains pre-oxidized fiber, low-melting-point polyester fiber and flame-retardant polyester fiber.
In this example, the strength of the first single yarn 1 is not lower than 350CN, where CN represents the unit: centi-bull;
the limiting oxygen index of the first single-strand yarn 1 is not less than 26%;
the limiting oxygen index of the second single-strand yarn 2 is not less than 30%.
In this embodiment, the core yarn 11 is made of any one of a polyester filament, a flame-retardant polyester filament, a nylon filament, or a flame-retardant nylon filament. Adopt fire-retardant or non-fire-retardant dacron filament, nylon filament to constitute core yarn 11, can effectively improve the powerful of first single strand yarn 1, avoid the easy washing shrink performance of yarn, and the cost is comparatively cheap, and application scope is wider.
In other embodiments, the core yarn 11 may also be made of a flame-retardant, high temperature resistant yarn. The flame-retardant and high-temperature-resistant yarn can be made of any one of fibers such as para-aramid fiber and polyimide fiber.
In this embodiment, the fineness of the core yarn 11 is 20 to 100D, where D represents a unit: and (4) denier.
In this embodiment, the blended fiber yarn 12 includes wool fibers and flame-retardant viscose fibers.
In this embodiment, the blended yarn 12 is formed by blending several fibers with the following mass ratio:
30-80% wool fibers;
20-70% of flame-retardant viscose fiber;
0-10% of flame-retardant nylon fiber;
0-2% of antistatic fiber.
In practical application, the proportion of each fiber can be adjusted within the above range according to actual requirements.
It should be noted that in practical applications, wool fibers and flame-retardant viscose fibers are required to be included, and the addition of the flame-retardant nylon fibers and the antistatic fibers can better improve the service performance of the flame-retardant yarn, wherein the abrasion resistance of the yarn can be provided by the addition of the flame-retardant nylon fibers, and the antistatic function can be increased by the antistatic fibers. The core yarn 11 is arranged on the inner layer of the blended fiber yarn 12, so that the easy washing shrinkage performance of the wool blended yarn can be effectively improved.
In this embodiment, the mass ratio of the pre-oxidized fiber, the low-melting polyester fiber and the flame-retardant polyester fiber in the second single-strand yarn 2 is as follows:
70-90% of pre-oxidized silk fiber;
5-10% of low-melting point polyester fiber;
0-30% of flame-retardant polyester fiber.
The pre-oxidized fiber has the characteristics of good flame-retardant high-temperature resistance, good slippage when contacting molten metal, and can improve the strength of the second single-stranded yarn, increase the washing resistance, improve the wear resistance, avoid the problems of easy hair falling and easy hair grinding after washing by blending with the low-melting-point polyester fiber, improve the wearability, and effectively reduce the yarn cost by adding the flame-retardant polyester fiber.
In an embodiment, a flame retardant fabric is woven by the flame retardant yarn, wherein the flame retardant yarn is formed by a double-ply yarn formed by doubling and twisting the first single-strand yarn 1 and the second single-strand yarn 2, and the specific structure of the flame retardant yarn can be seen in fig. 1 to 3, the yarn count of the first single-strand yarn 1 is not higher than that of the second single-strand yarn 2, that is, in this embodiment, the first single-strand yarn 1 and the second single-strand yarn 2 are firstly doubled to form a double-ply yarn, and then the flame retardant fabric is woven by the double-ply yarn.
In this embodiment, the specification range of the yarn count of the first single-strand yarn 1 is as follows: ne: 10/1-30/1 s;
the specification range of the yarn count of the second single-strand yarn 2 is as follows: ne: 20/1-40/1 s.
Where Ne represents the english count, and s is the unit of the english count: and (4) yarn count.
In this embodiment, the flame-retardant fabric may have any one of a plain, twill or satin structure.
The flame-retardant yarns in the flame-retardant fabric in the above example can be prepared by the following preparation method:
-covering said blended fiber yarn on the outer layer of said core yarn in a core-spun manner to obtain said first single-strand yarn, comprising the steps of:
(a1) the core yarn is made of any silk yarn of polyester filament yarn, flame-retardant polyester filament yarn, nylon filament yarn, flame-retardant nylon filament yarn or flame-retardant high-temperature-resistant yarn;
(a2) coating blended fiber yarn at least comprising wool fiber and flame-retardant viscose fiber on the outer layer of the core yarn to prepare first single-strand yarn;
-mixing said pre-oxidized fiber, low-melting polyester fiber and flame-retardant polyester fiber, and spinning to obtain said second single-strand yarn;
-joining said first single yarn to said second single yarn to obtain said flame-retardant yarn, in particular:
and twisting and connecting the first single-strand yarn and the second single-strand yarn to obtain the flame-retardant yarn.
In another embodiment, the flame-retardant fabric is formed by interweaving a first single-strand yarn 1 and a second single-strand yarn 2 in the flame-retardant yarn in a matching manner, wherein the yarn count of the first single-strand yarn 1 is higher than that of the second single-strand yarn 2;
in the flame-retardant fabric, a first single-strand yarn 1 floats on the surface, and a second single-strand yarn 2 sinks on the back.
In this embodiment, when the flame-retardant fabric is interwoven by the first single yarns 1 and the second single yarns 2 in both the warp direction and the weft direction, the fabric tightness of the flame-retardant fabric is not lower than 90%;
when the warp yarn of the flame-retardant fabric is interwoven by the first single-strand yarn 1 and the weft yarn of the flame-retardant fabric is interwoven by the second single-strand yarn 2, the fabric tightness of the flame-retardant fabric is not lower than 65%.
(i.e., the yarn count diameter of the first single-strand yarn 1 needs to be thicker than that of the second single-strand yarn 2. the fabric weaving design has the effect that the surface floats from the first single-strand yarn 1 to the surface, the second single-strand yarn 2 sinks to the back, the fabric tightness is not lower than 90% when the warp and weft are interwoven by the first/second yarns, and the fabric tightness is not lower than 65% when the warp is interwoven by the first single-strand yarn 1 and the second weft is interwoven by the single-strand yarns).
The flame-retardant yarns in the flame-retardant fabric in the above example can be prepared by the following preparation method:
-covering said blended fiber yarn on the outer layer of said core yarn in a core-spun manner to obtain said first single-strand yarn, comprising the steps of:
(a1) the core yarn is made of any silk yarn of polyester filament yarn, flame-retardant polyester filament yarn, nylon filament yarn, flame-retardant nylon filament yarn or flame-retardant high-temperature-resistant yarn;
(a2) coating blended fiber yarn at least comprising wool fiber and flame-retardant viscose fiber on the outer layer of the core yarn to prepare first single-strand yarn;
-mixing said pre-oxidized fiber, low-melting polyester fiber and flame-retardant polyester fiber, and spinning to obtain said second single-strand yarn;
-joining said first single yarn to said second single yarn to obtain said flame-retardant yarn, in particular:
and overlapping and connecting the first single-strand yarn and the second single-strand yarn to prepare the flame-retardant yarn.
The flame-retardant yarn and the flame-retardant fabric in the embodiment have the following advantages:
(1) the problem of large washing shrinkage of the wool blended yarns and fabrics thereof is solved;
(2) the second single-stranded yarn adopts low-melting-point polyester fiber, and the pre-oxidized fiber is well bonded through high-temperature melting, so that the problem that the pre-oxidized fiber is not resistant to washing is solved;
(3) the protective fabric keeps the excellent characteristics of wool blended fabrics in the performance of preventing molten metal from slipping, and also combines the high temperature resistance of pre-oxidized fiber, thereby improving the molten metal tolerance of the fabric.
(4) The protective fabric has good protective effect and low price.
A flame-retardant garment comprising the flame-retardant fabric.
The flame-retardant garment has flame retardant performance, can be effectively suitable for being used in a high-temperature working environment to protect a human body, has the characteristic of easy slippage of molten metal, and can be used as molten metal prevention protective clothing of a metal smelting factory.
A finishing method applied to the flame-retardant fabric, wherein the finishing method comprises the following operations of sequentially performing on the flame-retardant fabric:
dyeing and finishing, open width washing, drying and shaping, shearing, adding an auxiliary agent and decating.
Wherein, the auxiliary agent can be selected according to actual requirements, such as oil-proof and water-proof finishing or moisture absorption and sweat releasing finishing.
In the embodiment, the drying and shaping temperature is not lower than 120 ℃ and not higher than 180 ℃.
The fuzzing and pilling performance of the flame-retardant fabric protective fabric in the embodiment is not lower than grade 3; the washing shrinkage of the fabric is not higher than 3%; flame retardant property of fabric (GB 5455): the burning time is less than or equal to 2s, and the damage length is less than or equal to 150 mm.
The following are comparative experimental data for the flame retardant fabric of the present invention versus some prior art fabrics:
table 1 below shows three comparative fabrics, i.e., comparative fabric one, comparative fabric two, and comparative fabric three, and three examples of the flame retardant fabric of the present invention, i.e., flame retardant fabric one of the present invention, flame retardant fabric two of the present invention, and flame retardant fabric three of the present invention, and the specific characteristics of each fabric can be found in table 1 below.
TABLE 1
In order to increase the rigor of the test, the fabrics are all formed by weaving three-over-one-under-one-right twill (3/1 ↗), the warp density is 280 pieces/10 cm, and the weft density is 220 pieces/10 cm. The specific structure of the weave can be seen in fig. 4. The weight of the first flame-retardant fabric is 270 plus 280 g/square meter, and the weight of the first flame-retardant fabric is 280 plus 290 g/square meter.
1. Test for flame retardancy
The flame retardant performance of the six fabrics is tested by a test method of measuring the smoldering and afterflame time of the damage length in the vertical direction of the combustion performance of GB/T5455-2014 textile; the test results and descriptions are shown in table 2 below:
TABLE 2
As can be seen from table 2 above, the flame retardant properties of the first, second and third flame retardant fabrics of the present invention are all improved compared with the flame retardant properties of the three fabrics in the comparison, and particularly the two-side and three-side fabric damage properties of the flame retardant fabrics of the present invention are improved significantly.
2. Experiment of washing resistance and shrinkage
The fabric is subjected to a shrinkage performance test, a test sample is prepared according to GB/T8628, a washing method is carried out according to a 5A method of GB/T8629, data calculation is carried out according to GB/T8630, and test results and description are shown in the following table 3:
TABLE 3
From the table, the water washing resistance of the flame-retardant fabric is obviously stable and improved.
3. Test of wearability of Fabric
Then, the fabric wearability is subjected to a pilling test, the test method is GBT 4802.2-2008 determination of the pilling performance of the textile fabric, and the test results are shown in the following table 4:
| example of the Fabric | Pilling | Description of after-grinding phenomenon |
| Comparative example Fabric one | 3-4 | No obvious cloth surface abrasion |
| Comparative example Fabric two | 3 | The cloth surface has obvious fiber sanding and breaking. |
| Comparative example Fabric III | 3-4 | No obvious cloth surface abrasion |
| Flame retardant fabric of the invention | 3-4 | No obvious cloth surface abrasion |
| Flame retardant fabric of the |
3-4 | No obvious cloth surface abrasion |
| Flame retardant fabric III of the invention | 3-4 | No obvious cloth surface abrasion |
TABLE 4
As can be seen from the above table 4, the flame-retardant fabric of the invention has a certain improvement in wear resistance of the fabric compared with the comparative fabric II, and the service performance of the pre-oxidized fiber is improved.
4 resistance to molten metal impact
The test method is GB 8965.2 flame retardant protective part 2 of protective clothing: welding clothes, test results and description below
Shown in Table 5:
TABLE 5
Test methods are ISO 11612:2015 Protective fastening-fastening to Protective bonding heat and flame-Minimum performance requirements test item 7.4 molar aluminum spray and test item 7.5 molar iron spray, ISO 11612 is a Protective garment flame retardant test standard, and the test results and descriptions are shown in Table 6 below:
TABLE 6
From the comparison of tables 5 and 6 above, it is apparent that the metal melting and splashing resistance of the flame-retardant fabric in the embodiment of the present invention is better than that of the fabric in the comparative example, which satisfies the wearing requirement in high temperature environment.
By combining the flame retardant property test, the water washing resistance rate test, the fabric wearability test and the test of the anti-impact property of molten metal, it can be seen that the flame retardant fabric formed by the flame retardant yarn is superior to the conventional fabric in the comprehensive property, can better integrate and give consideration to the flame retardant property, the water washing resistance, the wear resistance, the metal melting resistance and the splashing resistance, can be better suitable for the high-temperature production manufacturing field, especially the field with molten metal in a metal melting factory and the like, can effectively protect the human body, and the service life of clothes manufactured by the flame retardant yarn is longer.
The flame-retardant yarn comprises a first single-strand yarn and a second single-strand yarn which are matched with each other; the first single-strand yarn is a core-spun yarn, the core-spun yarn comprises a core yarn and a blended fiber yarn coated on the outer surface of the core yarn, the core yarn is not easy to deform, and the blended fiber yarn has the characteristic of easy slippage of molten metal; the second single-stranded yarn comprises pre-oxidized fiber, low-melting-point polyester fiber and flame-retardant polyester fiber. The invention provides a method for manufacturing the flame-retardant yarn, and corresponding flame-retardant fabrics and clothes formed by the flame-retardant yarn can be well protected, and meanwhile, the problems of high washing shrinkage and water intolerance are solved, so that the flame-retardant yarn has high temperature resistance, and the molten metal tolerance of the fabric is effectively improved. The protective fabric made of the flame-retardant fabric is good in protective effect and low in price, can be better applied to the field of production and manufacturing, and further provides guarantee for the safety of construction operation of operators. The invention also provides a finishing method applied to the flame-retardant fabric, which comprises the following steps of: dyeing and finishing, open width washing, drying and shaping, shearing, adding an auxiliary agent and decating so as to better protect, improve the use experience and prolong the service life of the flame-retardant fabric.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.
Claims (20)
1. The flame-retardant yarn is characterized by comprising a first single-strand yarn and a second single-strand yarn which are matched with each other;
the first single-strand yarn is a core-spun yarn, the core-spun yarn comprises a core yarn and a blended fiber yarn coated on the outer surface of the core yarn, the core yarn is not easy to deform, and the blended fiber yarn has the characteristic of easy slippage of molten metal;
the second single-stranded yarn comprises pre-oxidized fiber, low-melting-point polyester fiber and flame-retardant polyester fiber.
2. The flame-retardant yarn of claim 1,
the strength of the first single-strand yarn is not lower than 350 CN;
the limiting oxygen index of the first single-strand yarn is not lower than 26%;
the limiting oxygen index of the second single-strand yarn is not lower than 30%.
3. The flame-retardant yarn according to claim 1, wherein the core yarn is composed of any one of polyester filament, flame-retardant polyester filament, nylon filament or flame-retardant nylon filament.
4. The flame-resistant yarn of claim 1 wherein said core yarn is comprised of a flame-resistant, high temperature resistant yarn.
5. The flame-retardant yarn of claim 1 wherein said core yarn has a denier of from 20 to 100D.
6. The flame-retardant yarn of claim 1, wherein said blended yarn comprises wool fibers and flame-retardant viscose fibers.
7. The flame-retardant yarn according to claim 1, wherein the blended yarn comprises the following fibers in a mass ratio:
30-80% wool fibers;
20-70% of flame-retardant viscose fiber.
8. The flame-retardant yarn of claim 7, wherein said blended yarn further comprises:
0-10% of flame-retardant nylon fiber;
0-2% of antistatic fiber.
9. The flame-retardant yarn according to claim 1, wherein the mass ratio of the pre-oxidized fiber, the low-melting-point polyester fiber and the flame-retardant polyester fiber in the second single-strand yarn is as follows:
70-90% of pre-oxidized silk fiber;
5-10% of low-melting point polyester fiber;
0-30% of flame-retardant polyester fiber.
10. A flame resistant fabric woven from the flame resistant yarns of any one of claims 1 to 9, wherein the flame resistant yarns are formed by cabling the first single-strand yarns and the second single-strand yarns, and wherein the first single-strand yarns have a higher yarn count than the second single-strand yarns.
11. The flame resistant fabric of claim 10,
the specification range of the yarn count of the first single-strand yarn is as follows: ne: 10/1-30/1 s;
the specification range of the yarn count of the second single-strand yarn is as follows: ne: 20/1-40/1 s.
12. The flame resistant fabric of claim 10, wherein the flame resistant fabric is any one of a plain, twill or satin weave structure.
13. A flame resistant fabric formed by interweaving first and second singles yarns of the flame resistant yarn of any one of claims 1-9, wherein the first singles yarn has a higher count than the second singles yarn;
in the flame-retardant fabric, the first single-strand yarn floats on the surface, and the second single-strand yarn sinks on the back.
14. The flame resistant fabric of claim 13,
when the first single-strand yarns and the second single-strand yarns are interwoven in the warp direction and the weft direction of the flame-retardant fabric, the fabric tightness of the flame-retardant fabric is not lower than 90%;
when the warp yarn of the flame-retardant fabric is interwoven by the first single-strand yarn and the weft yarn of the flame-retardant fabric is interwoven by the second single-strand yarn, the fabric tightness of the flame-retardant fabric is not lower than 65%.
15. A flame retardant garment comprising the flame retardant fabric of any one of claims 10 to 14.
16. A method for making a flame-retardant yarn according to any one of claims 1 to 9, wherein the method comprises:
-covering said blended yarn with said core yarn in an outer layer to produce said first single-strand yarn;
-mixing said pre-oxidized fiber, low-melting polyester fiber and flame-retardant polyester fiber, and spinning to obtain said second single-strand yarn;
-joining said first singles yarn to said second singles yarn to produce said flame-retardant yarn.
17. The method of claim 16, wherein the covering of the blended fiber yarn on the outer layer of the core yarn to form the first single-strand yarn comprises the steps of:
(a1) the core yarn is made of any silk yarn of polyester filament yarn, flame-retardant polyester filament yarn, nylon filament yarn, flame-retardant nylon filament yarn or flame-retardant high-temperature-resistant yarn;
(a2) and coating the blended fiber yarn at least comprising wool fibers and flame-retardant viscose fibers on the outer layer of the core yarn to prepare the first single-strand yarn.
18. The method of claim 16, wherein the step of combining the first singles yarn with the second singles yarn to form the flame-retardant yarn comprises:
the first single-strand yarn and the second single-strand yarn are twisted and connected to prepare the flame-retardant yarn; or
And overlapping and connecting the first single-strand yarn and the second single-strand yarn to prepare the flame-retardant yarn.
19. A finishing method applied to the flame retardant fabric of any one of claims 10 to 14, characterized in that the finishing method comprises the following operations performed on the flame retardant fabric in sequence:
dyeing and finishing, open width washing, drying and shaping, shearing, adding an auxiliary agent and decating.
20. The finishing process of claim 19, wherein the temperature of the oven drying and setting is not less than 120 ℃ and not more than 180 ℃.
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