CN110791861B - Production method of friction-resistant tensile composite canvas product - Google Patents
Production method of friction-resistant tensile composite canvas product Download PDFInfo
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- CN110791861B CN110791861B CN201911122974.6A CN201911122974A CN110791861B CN 110791861 B CN110791861 B CN 110791861B CN 201911122974 A CN201911122974 A CN 201911122974A CN 110791861 B CN110791861 B CN 110791861B
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/18—Other fabrics or articles characterised primarily by the use of particular thread materials elastic threads
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/256—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing fluorine
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters thereof
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
- D06M2101/28—Acrylonitrile; Methacrylonitrile
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
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- 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
- D10B2201/01—Natural vegetable fibres
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- 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
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- 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
- D10B2211/04—Silk
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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- 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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Abstract
The invention relates to a production method of a friction-resistant tensile composite canvas product, which comprises the following steps: the method comprises the steps of softening agent solution pretreatment, yarn feeding, loop withdrawing, yarn lapping, closing, looping, yarn bending, loop releasing, looping, loop forming, loop withdrawing and loop withdrawing every 1-5 needles, wherein each N or N times of single-path tissues are a complete tissue and are circularly woven to form a canvas fabric, each odd path of the N single-path tissues is circularly fed with yarn to loop forming, each even path of the N single-path tissues is circularly woven from yarn to loop withdrawing, each N single-path tissue is woven by adding one or two chemical fibers into the yarn, N is an integer of more than 3, after the canvas fabric is sewn or woven to form a canvas product, the canvas fabric is subjected to hot-dipping treatment in hot water, and is shaped, so that the diversity of a canvas framework material is increased, the creep relaxation performance of the traditional single yarn material is improved, the integral buckling is reduced, and the canvas framework material has high absorption capacity, and further has high friction resistance and tensile performance.
Description
Technical Field
The invention relates to a production method of a friction-resistant tensile composite canvas product, belonging to the technical field of canvas production.
Background
The canvas product is a plain weave or a small amount of twill weave fabric which is made of cotton, hemp and other materials and has one or more transverse and longitudinal directions, the warp and weft yarns are in a one-strand or multi-strand yarn framework, and the canvas product has the characteristics of lightness and firmness compared with other fabrics, is widely applied to a plurality of fields such as computer bags, handbags, backpacks and tablecloths after being dyed or printed, and has higher requirements on the wear-resistant tensile property of the canvas product in application occasions. In the prior art, the strength of the skeleton structure of a product formed by interweaving a single wire through plain weaving is mainly expressed at interweaving points only by increasing the number of strands and the thickness of the yarns of the cloth material, however, the interweaving points of the plain weaving or the twill weaving are few and tend to be planar, so that the product is easy to wear and break, and the stretched compound yarns are easy to generate staggered gaps, are bent and are not uniform in cross and longitudinal directions, so that the deformation of canvas products is caused, the damage risk is increased, the durability of the canvas products is greatly reduced, and the application of the canvas products is limited.
Disclosure of Invention
The invention aims to provide a production method of a friction-resistant tensile composite canvas product aiming at the defects of the prior art.
The invention is realized by the following technical scheme:
a production method of a friction-resistant tensile composite canvas product comprises the following steps:
(1) pretreatment: soaking yarns in a softening agent solution, spin-drying, dehydrating and drying, wherein the yarns are cotton yarns, hemp yarns or silk yarns;
the softening agent solution is prepared BY mixing a silicone oil softening agent TY-8809, a smoothing agent BY-668 and water according to the mass ratio of 2:1:100, wherein the soaking time is 40-60 min, the soaking temperature is 45-60 ℃, the drying temperature is 110-130 ℃, and the drying time is 40-60 min;
(2) feeding yarns: delivering the yarn and chemical fibers to a knitting area of a knitting machine;
(3) ring withdrawing: the latch needle rises from a low position to a highest point, and a sinker of the knitting machine moves inwards to enable an old coil to move inwards from a needle hook to a needle rod to finish the loop withdrawing;
(3) yarn laying: the latch needle descends and moves relative to the yarn guide, the sinker moves outwards, and the latch needle leads out new yarn or chemical fiber from the yarn guide and pads the new yarn or chemical fiber below the needle hook;
(4) closing the opening: the needle latch closes the needle opening upwards under the action of the old coil along with the descending of the latch needle;
(5) and (3) looping: the latch needle continues to descend, and the old coil moves upwards along the latch and is sleeved outside the latch;
(6) yarn bending: the latch needle descends to enable the needle hook to contact new yarns or gradually bend yarns of chemical fibers and continue until new loops are formed, and at the moment, the lug of the sinker leaves the latch needle;
(7) knocking off: the latch needle further descends to enable the old coil to be separated from the needle head and to be sleeved on the new coil which is undergoing yarn bending;
(8) looping: the latch needle descends to the lowest position to form a new coil;
(9) and (3) ring collection: selecting needles by a knitting machine, and raising the needles to tuck height every 1-5 needles to perform tuck knitting;
(10) drawing: pulling the dropped old coil and the formed new coil, pulling the old coil and the formed new coil to the back of the latch needle, separating the knitting area, repeating the steps (2) - (8) or the steps (2) - (9) to form a one-way tissue, wherein each N or N times of the one-way tissue is a complete tissue to be circularly knitted to form a canvas fabric, each odd number of the one-way tissue is circularly knitted in the steps (2) - (8), each even number of the one-way tissue is circularly knitted in the steps (2) - (9), each 1 to N-1 of the one-way tissue is knitted by yarns, each N of the one-way tissue is knitted by adding one or two chemical fibers into the yarns, and N is an integer more than 3;
the chemical fiber is one or more of cotton fiber, polyester fiber and acrylic fiber, when one or two chemical fibers are added into the yarn in each N paths of single-path weaving, the types of the chemical fibers added in the adjacent N paths are the same or different;
the tucking stitch number of the next even number path in the adjacent even number paths in the N paths is the front 1-2 stitches, the same stitch or the back 1-3 stitches of the tucking stitch number of the previous even number path;
(11) post-processing: sewing or weaving a canvas fabric into a canvas product, and then placing the canvas product in hot water for hot-dipping rolling treatment, wherein the hot-dipping rolling temperature is 80-85 ℃, 1-3% by mass of an acrylic acid alkali swelling thickener HY-302 is added into the hot-dipping rolling hot water, the rolling allowance rate is 70-80%, and the speed of a setting machine is 20-25 m/min;
drying and cooling to room temperature, shaping in a shaping machine at 180-205 ℃, putting the shaped product into a waterproof solution for hot dipping finishing at the hot dipping temperature of 60-75 ℃, and drying to constant weight;
the waterproof solution is prepared by mixing a waterproof agent HK-6301, a waterproof agent HK-8394 and water according to the mass ratio of 1:1:98, the mangling rate is 50-60%, and a canvas product finished product is obtained.
The invention has the beneficial effects that:
(1) the softening agent solution is adopted for pretreatment, so that the treated yarn is fluffy, bright, soft and smooth, the textile performance of the yarn is improved, and the yarn is suitable for being woven together with the elasticity of chemical fibers;
(2) chemical fibers are added for weaving, when one or two chemical fibers are added into yarns in every N paths of single-path tissues, the types of the chemical fibers added in adjacent N paths are the same or different, and every N path or N multiple paths are circulation, so that the diversity of a canvas framework material is increased, the creep relaxation performance of the traditional single yarn material is improved, the integral buckling is reduced, and the canvas framework material has higher absorption capacity, thereby improving the friction resistance and the tensile property;
(3) the tucking positions of adjacent even roads are 1-3 needles ahead of the lower roads, the same needles or behind the upper roads, the length of the floating line of the single-road tissue is reduced by tucking suspension arcs, and hot-dipping rolling shaping permeation and waterproof finishing are performed, so that the surface is smooth, the dimensional stability is better, and the friction and tensile properties are improved.
Drawings
Fig. 1 is a weave diagram of example 1.
Fig. 2 is a weave diagram of example 2.
Fig. 3 is a weave diagram of example 3.
The labels in the figure are: yarn a, cotton fiber b, terylene c and acrylic d.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
Example 1:
a production method of a friction-resistant tensile composite canvas product comprises the following steps:
(1) pretreatment: soaking yarns in a softening agent solution, spin-drying, dehydrating and drying, wherein the yarns are cotton yarns, hemp yarns or silk yarns;
softening agent solution silicone oil softening agent TY-8809, smoothing agent BY-668 and water in the mass ratio of 2 to 1 to 100 are mixed, the soaking time is 50min, the soaking temperature is 50 ℃, the drying temperature is 120 ℃, and the drying time is 50 min;
(2) feeding yarns: delivering the yarn and chemical fibers to a knitting area of a knitting machine;
(3) ring withdrawing: the latch needle rises from a low position to a highest point, and a sinker of the knitting machine moves inwards to enable an old coil to move inwards from a needle hook to a needle rod to finish the loop withdrawing;
(3) yarn laying: the latch needle descends and moves relative to the yarn guide, the sinker moves outwards, and the latch needle leads out new yarn or chemical fiber from the yarn guide and pads the new yarn or chemical fiber below the needle hook;
(4) closing the opening: the needle latch closes the needle opening upwards under the action of the old coil along with the descending of the latch needle;
(5) and (3) looping: the latch needle continues to descend, and the old coil moves upwards along the latch and is sleeved outside the latch;
(6) yarn bending: the latch needle descends to enable the needle hook to contact new yarns or gradually bend yarns of chemical fibers and continue until new loops are formed, and at the moment, the lug of the sinker leaves the latch needle;
(7) knocking off: the latch needle further descends to enable the old coil to be separated from the needle head and to be sleeved on the new coil which is undergoing yarn bending;
(8) looping: the latch needle descends to the lowest position to form a new coil;
(9) and (3) ring collection: selecting needle by knitting machinery, and raising to tuck height for tuck knitting every 4 needles to retreat;
(10) drawing: drawing the dropped old coil and the formed new coil, pulling the old coil and the formed new coil to the back of the latch needle, separating the knitting area, repeating the steps (2) - (8) or the steps (2) - (9) to form a single-path tissue, circularly knitting every 2 x N single-path tissues as a complete tissue to form a canvas fabric, circularly knitting every odd-path tissue in the N single-path tissues in the steps (2) - (8), circularly knitting every even-path tissue in the steps (2) - (9), knitting every 1 to N-1 single-path tissues as yarns, knitting every N single-path tissue as yarns added with one chemical fiber, and N is 3;
the chemical fiber is cotton fiber or polyester fiber, and when one chemical fiber is added to the yarn in every N paths of single-path tissues, the types of the chemical fibers added in the adjacent N paths are different;
the tucking stitch number of the next even number path in the adjacent even number paths in the N paths is the front 2 stitches of the tucking stitch number of the previous even number path;
(11) post-processing: sewing or weaving a canvas fabric into a canvas product, and then placing the canvas product in hot water for hot-dipping rolling treatment, wherein the hot-dipping rolling temperature is 82 ℃, 2% by mass of an acrylic acid alkali swelling thickener HY-302 is added into the hot-dipping rolling hot water, the rolling allowance rate is 75%, and the speed of a setting machine is 23 m/min;
drying, cooling to room temperature, shaping in a shaping machine at 190 ℃, putting into a waterproof solution for hot dipping finishing after shaping, wherein the hot dipping temperature is 65 ℃, and then drying to constant weight;
the waterproof solution is prepared by mixing a waterproof agent HK-6301, a waterproof agent HK-8394 and water according to the mass ratio of 1:1:98, the mangling rate is 53%, and a canvas product finished product is obtained.
Example 2
A production method of a friction-resistant tensile composite canvas product comprises the following steps:
(1) pretreatment: soaking the yarns in a softening agent solution, spin-drying, dehydrating and drying, wherein the yarns are linen yarns;
softening agent solution silicone oil softening agent TY-8809, smoothing agent BY-668 and water in the mass ratio of 2 to 1 to 100 are mixed, the soaking time is 45min, the soaking temperature is 55 ℃, the drying temperature is 122 ℃, and the drying time is 55 min;
(2) feeding yarns: delivering the yarn and chemical fibers to a knitting area of a knitting machine;
(3) ring withdrawing: the latch needle rises from a low position to a highest point, and a sinker of the knitting machine moves inwards to enable an old coil to move inwards from a needle hook to a needle rod to finish the loop withdrawing;
(3) yarn laying: the latch needle descends and moves relative to the yarn guide, the sinker moves outwards, and the latch needle leads out new yarn or chemical fiber from the yarn guide and pads the new yarn or chemical fiber below the needle hook;
(4) closing the opening: the needle latch closes the needle opening upwards under the action of the old coil along with the descending of the latch needle;
(5) and (3) looping: the latch needle continues to descend, and the old coil moves upwards along the latch and is sleeved outside the latch;
(6) yarn bending: the latch needle descends to enable the needle hook to contact new yarns or gradually bend yarns of chemical fibers and continue until new loops are formed, and at the moment, the lug of the sinker leaves the latch needle;
(7) knocking off: the latch needle further descends to enable the old coil to be separated from the needle head and to be sleeved on the new coil which is undergoing yarn bending;
(8) looping: the latch needle descends to the lowest position to form a new coil;
(9) and (3) ring collection: selecting needle by knitting machine, raising to tuck height to perform tuck knitting every 3 needles to withdraw;
(10) drawing: pulling the released old coil and the formed new coil, pulling the old coil to the back of the latch needle, separating the knitting area, repeating the steps (2) - (8) or the steps (2) - (9) to form a one-way tissue, wherein each N-way tissue is a complete tissue and is circularly knitted to form a canvas fabric, each odd-way tissue is circularly knitted in the steps (2) - (8) in the N-way tissue, each even-way tissue is circularly knitted in the steps (2) - (9), each 1-N-1-way tissue is knitted by yarns, each N-way tissue is knitted by adding two chemical fibers into the yarns, and N is 5;
the chemical fiber is acrylic fiber, and when one or two chemical fibers are added to the yarn in every N paths of single-path tissues, the types of the chemical fibers added in the adjacent N paths are the same;
the tucking stitch number of the next even number path in the adjacent even number paths in the N paths is the back 3 stitches of the tucking stitch number of the previous even number path;
(11) post-processing: sewing or weaving a canvas fabric into a canvas product, and then placing the canvas product in hot water for hot-dipping rolling treatment, wherein the hot-dipping rolling temperature is 82 ℃, an acrylic acid alkali swelling thickener HY-302 with the mass percentage concentration of 3% is added into the hot-dipping rolling hot water, the rolling allowance rate is 72%, and the speed of a setting machine is 24 m/min;
drying, cooling to room temperature, shaping in a shaping machine at 195 ℃, putting into a waterproof solution for hot dipping finishing after shaping, wherein the hot dipping temperature is 72 ℃, and then drying to constant weight;
the waterproof solution is prepared by mixing a waterproof agent HK-6301, a waterproof agent HK-8394 and water according to the mass ratio of 1:1:98, the mangling rate is 54%, and a canvas product finished product is obtained.
Example 3
A production method of a friction-resistant tensile composite canvas product comprises the following steps:
(1) pretreatment: soaking the yarns in a softening agent solution, spin-drying, dehydrating and drying, wherein the yarns are silk yarns;
softening agent solution silicone oil softening agent TY-8809, smoothing agent BY-668 and water in the mass ratio of 2 to 1 to 100 are mixed, the soaking time is 55min, the soaking temperature is 60 ℃, the drying temperature is 125 ℃, and the drying time is 45 min;
(2) feeding yarns: delivering the yarn and chemical fibers to a knitting area of a knitting machine;
(3) ring withdrawing: the latch needle rises from a low position to a highest point, and a sinker of the knitting machine moves inwards to enable an old coil to move inwards from a needle hook to a needle rod to finish the loop withdrawing;
(3) yarn laying: the latch needle descends and moves relative to the yarn guide, the sinker moves outwards, and the latch needle leads out new yarn or chemical fiber from the yarn guide and pads the new yarn or chemical fiber below the needle hook;
(4) closing the opening: the needle latch closes the needle opening upwards under the action of the old coil along with the descending of the latch needle;
(5) and (3) looping: the latch needle continues to descend, and the old coil moves upwards along the latch and is sleeved outside the latch;
(6) yarn bending: the latch needle descends to enable the needle hook to contact new yarns or gradually bend yarns of chemical fibers and continue until new loops are formed, and at the moment, the lug of the sinker leaves the latch needle;
(7) knocking off: the latch needle further descends to enable the old coil to be separated from the needle head and to be sleeved on the new coil which is undergoing yarn bending;
(8) looping: the latch needle descends to the lowest position to form a new coil;
(9) and (3) ring collection: selecting needle by knitting machine, raising to tuck height to perform tuck knitting every 2 needles to withdraw;
(10) drawing: pulling the dropped old coil and the formed new coil, pulling the old coil and the formed new coil to the back of the latch needle, separating the knitting area, repeating the steps (2) - (8) or the steps (2) - (9) to form a one-way tissue, circularly knitting every 2 x N one-way tissue as a complete tissue to form a canvas fabric, circularly knitting every odd one-way tissue in the N one-way tissue in the steps (2) - (8), circularly knitting every even one-way tissue in the steps (2) - (9), knitting every 1 to N-1 one-way tissue as yarns, knitting every N one-way tissue as yarns added with two chemical fibers, and N is 4;
the chemical fibers are cotton fibers and acrylic fibers, and when every N paths of single-path tissues are yarns and two chemical fibers are added, the types of the chemical fibers added in the adjacent N paths are different;
the tucking stitch number of the next even number path in the adjacent even number paths in the N paths is the back 2 stitches of the tucking stitch number of the previous even number path;
(11) post-processing: sewing or weaving a canvas fabric into a canvas product, and then placing the canvas product in hot water for hot-dipping rolling treatment, wherein the hot-dipping rolling temperature is 84 ℃, 2.3% of acrylic acid alkali swelling thickener HY-302 in percentage by mass is added into the hot-dipping rolling hot water, the rolling allowance rate is 76%, and the speed of a setting machine is 21 m/min;
drying, cooling to room temperature, shaping in a shaping machine at 185 ℃, putting into a waterproof solution for hot dipping finishing after shaping, wherein the hot dipping temperature is 63 ℃, and then drying to constant weight;
the waterproof solution is prepared by mixing a waterproof agent HK-6301, a waterproof agent HK-8394 and water according to the mass ratio of 1:1:98, the mangling rate is 58%, and a canvas product finished product is obtained.
In the invention:
(1) silicone oil softener TY-8809 is purchased from Pagasong city, a Taiyan textile product Limited company, is a weak cationic softener, smoothing agent BY-668 is purchased from Dongguan city, a textile auxiliary agent Limited company, is a finishing agent containing an organic amine derivative, dimethyl silicone oil and silicone amide, is used together with silicone oil softener TY-8809, is soaked BY a softener solution, has high-efficiency permeation effect, enables the treated yarn to be fluffy, bright, soft and smooth, improves the textile performance of the yarn, adapts to the elasticity of chemical fibers, and avoids the risk of needle-off and hole-carving when being woven together.
(2) The chemical fiber is adopted for adding and weaving, the cotton fiber is modified polypropylene fiber, the fabric has the excellent characteristics of soft and warm keeping, moisture permeability and dryness, sanitation and antibiosis and the like, the polyester fiber is polyester fiber and has crease resistance, firmness and durability, the acrylic fiber is polyacrylonitrile fiber, moisture absorption and easy dyeing are realized, when one or two chemical fibers are added into the yarn through every N paths of single-path tissues, the types of the chemical fibers added into adjacent N paths are the same or different, the added yarn is the same, every N path is taken as circulation, and when the added yarn is different, the multiple of the N paths is taken as weaving circulation.
(3) The tucking positions of adjacent even paths are 1-3 needles ahead of the lower path, the same needles or behind the upper path, formed tucking units can reduce longitudinal strip defects of the canvas fabric, the forming performance is good compared with a traditional weaving method, the tucking suspension arcs are used for reducing the length of floating lines of single-path tissues, the tucking suspension arcs have high strength, and the looped tissues after stretching are not easy to deform, so that the friction resistance is improved.
(4) The acrylic acid alkali swelling thickener HY-302 is purchased from Beijing Mayer chemical engineering Co., Ltd, and has the functions of thickening, swelling effect increase and good fluidity, so that wrinkles existing in the canvas product are eliminated, fibers on the inner surface and the outer surface of the canvas product reach the heat penetration effect after the surface of the canvas product reaches the hot dipping rolling setting temperature, the vehicle speed is accelerated, the average single yarn strength of the set canvas product is improved compared with that of an undetermined canvas product, and the weft direction change is more obvious in the radial direction, so that the size stability and the stretch resistance of the canvas product are improved.
(5) The waterproof agent HK-6301 is an organic fluororesin finishing agent, is a waterproof agent HK-8394 fluorocarbon copolymer, is purchased from Shanghai gold chemical engineering Co., Ltd, has good low-temperature setting property, can fill gaps between yarns and chemical fibers and compensate contraction force, and plays a role in performing water repellent finishing on the yarns or the chemical fibers after a canvas product is subjected to multiple water systems and drying treatment, so that the surface is smooth, friction traction loss is reduced, and durability is improved.
The canvas products prepared in examples 1-3 and the commercially available canvas products were used as a control example for performance tests, wherein the friction performance was tested according to GB/T3920-2008 standard, the tensile performance was tested according to GBT 3923.1-1997 standard, and the wrinkle recovery was tested according to GB/T3818-1997 standard, and the results are as follows:
| sequence number/item | Modulus of elasticity in tension (MPa) | Tensile breaking Strength (MPa) | Elongation at Break (%) | Fastness to dry rubbing (grade) | Percentage of pilling by friction (%) | Crease resistance (%) |
| Example 1 | 253 | 194 | 44 | 5 | 1.1 | 65.4 |
| Example 2 | 201 | 232 | 38 | 4 | 2.5 | 79.3 |
| Example 3 | 214 | 184 | 54 | 4 | 1.3 | 78.1 |
| Comparative example | 112 | 78 | 23 | 2 | 8.4 | 23.5 |
As can be seen from the table above, compared with the traditional canvas product, the elastic deformation force of the canvas product is increased, the elongation at break is increased, the tensile property is improved, the surface is not easy to wrinkle and destabilize, and the fatigue wear resistance is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A production method of a friction-resistant tensile composite canvas product is characterized by comprising the following steps:
(1) pretreatment: soaking yarns in a softening agent solution, spin-drying, dehydrating and drying, wherein the yarns are cotton yarns, hemp yarns or silk yarns, the softening agent solution is prepared BY mixing a silicone oil softening agent TY-8809, a smoothing agent BY-668 and water according to a mass ratio of 2:1:100, the soaking time is 40-60 min, the soaking temperature is 45-60 ℃, the drying temperature is 110-130 ℃, and the drying time is 40-60 min;
(2) feeding yarns: delivering the yarn and chemical fibers to a knitting area of a knitting machine;
(3) ring withdrawing: the latch needle rises from a low position to a highest point, and a sinker of the knitting machine moves inwards to enable an old coil to move inwards from a needle hook to a needle rod to finish the loop withdrawing;
(3) yarn laying: the latch needle descends and moves relative to the yarn guide, the sinker moves outwards, and the latch needle leads out new yarn or chemical fiber from the yarn guide and pads the new yarn or chemical fiber below the needle hook;
(4) closing the opening: the needle latch closes the needle opening upwards under the action of the old coil along with the descending of the latch needle;
(5) and (3) looping: the latch needle continues to descend, and the old coil moves upwards along the latch and is sleeved outside the latch;
(6) yarn bending: the latch needle descends to enable the needle hook to contact new yarns or gradually bend yarns of chemical fibers and continue until new loops are formed, and at the moment, the lug of the sinker leaves the latch needle;
(7) knocking off: the latch needle further descends to enable the old coil to be separated from the needle head and to be sleeved on the new coil which is undergoing yarn bending;
(8) looping: the latch needle descends to the lowest position to form a new coil;
(9) and (3) ring collection: selecting needles by a knitting machine, and raising the needles to tuck height every 1-5 needles to perform tuck knitting;
(10) drawing: pulling the dropped old coil and the formed new coil, pulling the old coil and the formed new coil to the back of a latch needle, separating the new coil from a knitting area, repeating the steps (2) - (8) or the steps (2) - (9) to form a one-way tissue, wherein each N or N times of the one-way tissue is a complete tissue to be circularly knitted to form a canvas fabric, each odd number of the N-way tissue is circularly knitted in the steps (2) - (8), each even number of the N-way tissue is circularly knitted in the steps (2) - (9), each 1 to N-1 ways of the one-way tissue is knitted by yarns, each N way of the one-way tissue is knitted by adding one or two chemical fibers into the yarns, N is an integer of more than 3, and the tuck stitch number of the next even number of the adjacent even number of the N ways is the first 1-2 needles, the same needles or the last 1-3 needles of the even number of the tuck stitches;
(11) post-processing: the canvas fabric is sewn or woven into a canvas product, then the canvas product is placed in hot water for hot-dipping rolling treatment, the hot-dipping rolling temperature is 80-85 ℃, 1-3% by mass of acrylic acid alkali swelling thickener HY-302 is added into the hot-dipping rolling hot water, the rolling residual rate is 70-80%, the speed of a setting machine is 20-25 m/min, then the canvas product is dried and cooled to the room temperature, and the finished canvas product is obtained by setting in the setting machine at the temperature of 180-205 ℃.
2. The method for producing a friction-resistant stretch composite canvas product according to claim 1, wherein the chemical fibers are one or more of cotton, polyester and acrylic, and when one or two chemical fibers are added to the yarn in each N-path single-path structure, the types of the chemical fibers added in the adjacent N-path multiple paths are the same or different.
3. The production method of the friction-resistant stretch composite canvas product according to claim 1 or 2, wherein the canvas product is shaped, then is put into a waterproof solution for hot dipping and finishing, the hot dipping temperature is 60-75 ℃, and then is dried to constant weight.
4. The production method of the friction-resistant stretch composite canvas product according to claim 3, wherein the waterproof solution is formed by mixing a waterproof agent HK-6301 and a waterproof agent HK-8394 with water according to a mass ratio of 1:1:98, and the mangle rolling rate is 50-60%.
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