CN115094656B - Knitted scratch-free fabric and preparation process thereof - Google Patents
Knitted scratch-free fabric and preparation process thereof Download PDFInfo
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- CN115094656B CN115094656B CN202210699226.XA CN202210699226A CN115094656B CN 115094656 B CN115094656 B CN 115094656B CN 202210699226 A CN202210699226 A CN 202210699226A CN 115094656 B CN115094656 B CN 115094656B
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- 239000004744 fabric Substances 0.000 title claims abstract description 71
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000001035 drying Methods 0.000 claims abstract description 27
- 238000004043 dyeing Methods 0.000 claims abstract description 22
- 238000007493 shaping process Methods 0.000 claims abstract description 20
- 238000007670 refining Methods 0.000 claims abstract description 15
- 238000009941 weaving Methods 0.000 claims abstract description 12
- 238000009940 knitting Methods 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 14
- 239000003513 alkali Substances 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- 239000002585 base Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 abstract description 3
- 239000000835 fiber Substances 0.000 abstract description 2
- 239000005022 packaging material Substances 0.000 abstract description 2
- 210000002268 wool Anatomy 0.000 abstract 2
- 230000000052 comparative effect Effects 0.000 description 5
- 206010020112 Hirsutism Diseases 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 2
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 2
- 238000003490 calendering Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06Q—DECORATING TEXTILES
- D06Q1/00—Decorating textiles
- D06Q1/02—Producing patterns by locally destroying or modifying the fibres of a web by chemical actions, e.g. making translucent
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C11/00—Teasing, napping or otherwise roughening or raising pile of textile fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Fiber Materials (AREA)
- Knitting Of Fabric (AREA)
Abstract
The invention discloses a knitted scratch-free fabric and a preparation process thereof, wherein the knitted scratch-free fabric is obtained by weaving yarns, refining in a cylinder, dyeing, drying, napping, burnt-out treatment and shaping, wherein the napped product is subjected to burnt-out treatment to form concave-convex surfaces on the surfaces, the height of naps on the surfaces is 0.2-0.3mm, and the height difference H of naps of the fabric is 0.05-0.12mm after the nap is subjected to burnt-out treatment. According to the knitted scratch-free fabric and the preparation process thereof, after the surface of the napped product is formed with the concave-convex shape after being subjected to burnt-out treatment, the scratch problem can be solved, the knitted scratch-free fabric adopts non-sea-island yarns, is not subjected to fiber opening treatment, is environment-friendly, the back surface of the fabric is provided with the short nap formed by the cut-off extension line after being subjected to napping treatment, the fabric presents the wool feeling of non-woven fabrics after being subjected to special napping, the length of the short nap is 30-60% of the thickness, the wool is short and dense without leaking, and the writing feeling is weaker, so that the knitted scratch-free fabric is suitable for being used as a packaging material of electronic products.
Description
Technical Field
The invention belongs to the technical field of fabric preparation, and particularly relates to a knitted scratch-free fabric and a preparation process thereof.
Background
With the continuous development and progress of science and technology, people put higher demands on the functions of the fabric. The influence of the knitting process is that the suede nap is smooth, and the fiber is fine, so that the fabric cannot be quickly restored to the original state after being scratched by hard objects, scratches are left, and the appearance of the fabric is seriously influenced; when the fabric is used on an electronic product, the pick-up frequency is high, so that the fabric is easy to collide with the outside, the appearance is seriously influenced, and the customer experience is poor.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provide a knitted scratch-free fabric and a preparation process thereof.
In order to achieve the above purpose and achieve the above technical effects, the invention adopts the following technical scheme:
a knitted scratch-free fabric is obtained by weaving yarns, refining in a cylinder, dyeing, drying, napping, burnt-out treatment and shaping, wherein the napped product is subjected to burnt-out treatment to form concave-convex surfaces on the surfaces, the heights of naps on the surfaces are 0.2-0.3mm, and the heights H of naps of the fabric after the burnt-out treatment are 0.05-0.12mm.
Further, the fabric is formed by knitting a guide bar GB1, a guide bar GB2 and a guide bar GB3 by adopting non-sea island yarns without splitting treatment, the guide bar GB1 adopts fine denier high F yarns, and the guide bar GB2 and the guide bar GB3 respectively adopt high shrinkage polyester filaments with shrinkage rates of more than 30%.
Further, the back surface of the fabric is provided with short nap which is formed by extending and is cut off by napping treatment, the length of the short nap is 30-60% of the thickness, and the number of yarns in unit square centimeter is not less than 100000.
Further, the guide bar GB1 is a variable warp plain weave of at least four needles, the yarn specification is 25D-40D, the guide bar GB2 is a knitting chain weave of one needle, the yarn specification is 15D-25D, the guide bar GB3 is a warp plain weave of three needles, and the yarn specification is 15D-25D.
Further, the thickness of the fabric is 0.3-0.6mm.
A preparation process of a knitted scratch-free fabric comprises the following steps:
1) Yarn weaving: weaving a base fabric by adopting a 40-needle three-bar warp knitting machine, wherein the guide bar GB1, the guide bar GB2 and the guide bar GB3 are of a variable warp knitting structure with at least four needles, the guide bar GB2 is of a knitting chain structure with one needle, and the guide bar GB3 is of a reverse warp knitting structure with three needles;
2) In-cylinder refining: in the refining process, the temperature is 80-90 ℃, the heat preservation time is 15-20min, and the bath ratio is 1:18-20;
3) Dyeing: in the dyeing process, an overflow cylinder is adopted to dye at 120-130 ℃ and pH value of 5-7, and the dyeing and heat preservation time is 30-40min;
4) And (3) drying: in the drying process, the drying temperature is set to be 165-175 ℃ and the speed is set to be 18-25m/min;
5) Napping: the back surface of the napped fabric is provided with short dense nap formed by napped and cut extension lines; when in napping, the weak napping condition under low tension is adopted, the napping is carried out for 12 to 16 times, the tension is set to 2.315 to 3.125 percent, the needle is 260 to 280r/min, and the needle is reversed to 170 to 190r/min;
6) And (3) burnt-out treatment: alkali liquor NAOH concentration is 5-15%, alkali-resistant paste is 30-50%, baking, washing and drying are carried out after burnt-out;
7) Shaping: in the shaping process, the shaping temperature is set to 170 ℃ and the speed is set to 18-25m/min.
Compared with the prior art, the invention has the beneficial effects that:
the invention discloses a knitted scratch-free fabric and a preparation process thereof, wherein the fabric is obtained by weaving yarns, refining in a cylinder, dyeing, drying, napping, burnt-out treatment and shaping, the napped product is subjected to burnt-out treatment to form concave-convex surfaces on the surface, the surface nap height is 0.2-0.3mm, the nap height difference H of the fabric is 0.05-0.12mm after the burnt-out treatment, the problem of scratches can be solved after the concave-convex surfaces are formed, the user experience is improved, the fabric adopts non-sea island yarns, the non-sea island yarns do not need to be subjected to opening treatment, the fabric is environment-friendly, the back surface of the fabric is provided with short naps which are cut by napping treatment and are formed into extension lines, the fabric presents a non-woven fabric nap feel after special napping, the short nap length is 30-60% of thickness, the nap is short and dense without bottom leakage, and the writing feel is weak, and is suitable for packaging materials of electronic products.
Detailed Description
The present invention is described in detail below so that advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and unambiguous the scope of the present invention.
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The knitted scratch-free fabric is formed by weaving yarns, refining in a cylinder, dyeing, drying, napping, burnt-out treatment and shaping, wherein the napped product is subjected to burnt-out treatment to form concave-convex surfaces on the surfaces, the surface napping height is 0.2-0.3mm, and the napping height difference H of the fabric is 0.05-0.12mm.
The fabric is formed by knitting guide bars GB1, GB2 and GB3 without splitting treatment, wherein the guide bars GB1 are fine denier high F yarns, the guide bars GB1 are at least four-needle variable warp knitting structures, the yarn specifications are 25D-40D, the guide bars GB2 and GB3 are respectively high-shrinkage polyester filaments, the shrinkage rate is greater than 30%, the guide bars GB2 are knitting chain structures of one needle, the yarn specifications are 15D-25D, the guide bars GB3 are three-needle warp knitting structures, and the yarn specifications are 15D-25D. The back surface of the fabric is provided with short fluff which is formed by the cut extension line after napping treatment, the length of the short fluff is 30-60% of the thickness, and the number of yarns in unit square centimeter is not less than 100000.
Preferably, the guide bar GB1 yarn can be made of yarns made of different thicknesses of spinneret holes of the same spinneret plate, and yarns with different filament fineness can be obtained, so that hairiness with different heights and lengths can be formed, and the existence of scratches is reduced, which is not easy to think of ordinary technicians.
A preparation process of a knitted scratch-free fabric comprises the following steps:
1) Yarn weaving: weaving a base fabric by adopting a 40-needle three-bar warp knitting machine from a guide bar GB1, a guide bar GB2 and a guide bar GB3, wherein the guide bar GB1 is at least four-needle variable warp knitting structures, the guide bar GB2 is one-needle knitting chain structures, and the guide bar GB3 is three-needle warp knitting structures;
2) In-cylinder refining: in the refining process, the temperature is 80-90 ℃, the heat preservation time is 15-20min, and the bath ratio is 1:18-20;
3) Dyeing: in the dyeing process, dyeing is carried out at 120-130 ℃ and pH value of 5-7, and the dyeing heat preservation time is 30-40min;
4) And (3) drying: in the drying process, the drying temperature is set to be 165-175 ℃ and the speed is set to be 18-25m/min;
5) Napping: the back surface of the napped fabric is provided with short dense nap formed by napped and cut extension lines; when in napping, the weak napping condition under low tension is adopted, the napping is carried out for 12 to 16 times, the tension is set to 2.315 to 3.125 percent, the needle is 260 to 280r/min, and the needle is reversed to 170 to 190r/min;
6) And (3) burnt-out treatment: alkali liquor NAOH concentration is 5-15%, alkali-resistant paste is 30-50%, baking, washing and drying are carried out after burnt-out;
7) Shaping: in the shaping process, the shaping temperature is set to 170 ℃ and the speed is set to 18-25m/min.
In the calendering process, the temperature is set to 170-180 ℃ and the pressure is set to 50-60Mpa, the polyester is easier to soften by high-temperature calendering, and the reverse side coil is easier to be flattened by high-pressure.
Example 1
The knitted scratch-free fabric is 0.3mm thick and is obtained through yarn weaving, in-cylinder refining, dyeing, drying, napping, burnt-out treatment and shaping, wherein the napped product is subjected to burnt-out treatment to form concave-convex surfaces on the surfaces, the heights of naps on the surfaces are 0.2-0.3mm, and the heights of naps of the fabric after burnt-out treatment are 0.05mm. The warp knitting scratch-free fabric is formed by knitting a guide bar GB1, a guide bar GB2 and a guide bar GB3, wherein the guide bar GB1 is at least four-needle variable warp knitting plain weave, the guide bar GB2 is one-needle knitting chain weave, the guide bar GB3 is three-needle warp knitting plain weave, the guide bar GB1 adopts fine denier high F yarns, the specification is 30D/144F thick and thin, the guide bar GB2 and the guide bar GB3 respectively adopt high-shrinkage polyester filaments, the shrinkage is 30%, and the specification is 20D thick and thin. The back surface of the fabric is provided with short naps which are formed by the cut extension lines after napping treatment, the length of the short naps is 50% of the thickness, the fabric presents the napped feeling of non-woven fabrics after special napping, and the napping is short and dense, and has weak writing feeling.
The fabric in this embodiment adopts a 40-needle three-bar warp knitting machine, and is processed by dyeing and finishing processes after the basic cloth is knitted by the bars GB1, GB2 and GB 3: refining, dyeing, drying, napping, burnt-out treatment and shaping.
In-cylinder refining: in the refining process, the temperature is 85 ℃, the heat preservation time is 20min, and the bath ratio is 1:20.
Dyeing: in the dyeing process, 130 ℃ dyeing is adopted, the dyeing and heat preservation time is 30min, and the pH value is 5-7.
And (3) drying: in the drying process, the drying temperature is set to 170 ℃ and the speed is set to 20m/min.
Napping: the back surface of the napped fabric is provided with short dense nap formed by napped and cut extension lines; when in napping, a weak napping condition under low tension is adopted, the total napping is carried out for 12 channels, the tension is set to 2.315 percent, the needle is 260r/min, and the needle is reversed to 170r/min.
And (3) burnt-out treatment: alkali liquor NAOH concentration is 15%, alkali-resistant paste is 50%, baking, washing and drying are carried out after burnt-out, and cloth is obtained.
Shaping: in the shaping process, the shaping temperature is 170 ℃ and the speed is 25m/min.
During processing and drying, the thickness of the fabric needs to be controlled at the step, during drying, the width of the fabric is widened by 19%, the fabric is not stretched radially, special napping treatment is carried out after drying, and then the final step of shaping finishing is carried out, wherein the shaped width is stretched by about 8% on the basis. The fabric processed by the process meets the thickness and bottom exposure-free requirements of customers. Before the electronic product is attached, gaps among the coils are filled in a mode of back coating the fabric, and the back-coated substance also has an adhesive effect, so that the problem of hair falling can be solved.
More specifically, gaps among the back coils of the fabric are filled with polyurethane, polyacrylic acid and the like through back coating, so that the effect of binding hairiness can be achieved, and the problem of hair falling is solved. When back coating is carried out, penetration to the surface is not reduced, surface hairiness is not affected, and meanwhile, all yarns of the fabric can not form lotus edges due to concave-convex or non-identical horizontal plane due to pressure relation in the cutting process, so that the problem that scattered edges or lotus edges exist after cutting is solved.
Example 2
The guide bar GB1 is knitted by adopting yarns with different single filament numbers, and when burnt out, the concentration of alkali liquor NAOH is 5 percent, the alkali-resistant paste is 30 percent, and the cloth is obtained by baking, washing and drying after burnt out. The procedure is as in example 1.
Comparative example 1
The fabric was not subjected to burn-out treatment and the rest was the same as in example 1.
By comparison, example 1 showed that example 1 had lighter scratches than comparative example 1, comparative example 1 had heavier scratches, and improved detail; example 2 showed little scratch compared to comparative example 1, whereas comparative example 1 showed a large gap. The invention can obviously improve the scratch problem existing in the shrinkage of the common fabric.
Parts or structures of the present invention, which are not specifically described, may be existing technologies or existing products, and are not described herein.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (6)
1. A knitted scratch-free fabric is characterized by being obtained through yarn weaving, in-cylinder refining, dyeing, drying, napping, burnt-out treatment and shaping, wherein the napped product is subjected to burnt-out treatment to form concave-convex surfaces on the surfaces, the height of the napping on the surfaces is 0.2-0.3mm, and the height difference H of the napping of the fabric after burnt-out treatment is 0.05-0.12mm.
2. The knitted scratch-free fabric according to claim 1, wherein the fabric is made of non-sea-island yarns and is formed by knitting a guide bar GB1, a guide bar GB2 and a guide bar GB3 without splitting, the guide bar GB1 is made of fine denier high F yarns, and the guide bar GB2 and the guide bar GB3 are made of high shrinkage polyester filaments respectively, and the shrinkage is greater than 30%.
3. The knitted scratch-free fabric according to claim 1 or 2, wherein the back surface of the fabric is provided with short naps formed by an extension line cut by napping treatment, the length of the short naps is 30-60% of the thickness, and the number of yarns in unit square centimeter is not less than 100000.
4. The knitted scratch-free fabric according to claim 2, wherein the guide bar GB1 is a variable warp plain weave of at least four needles, the yarn gauge is 25D-40D, the guide bar GB2 is a chain stitch of one needle, the yarn gauge is 15D-25D, the guide bar GB3 is a warp plain weave of three needles, and the yarn gauge is 15D-25D.
5. The knitted scratch-free fabric of claim 1, wherein the thickness of the fabric is 0.3-0.6mm.
6. The process for producing a knitted scratch-free fabric according to any one of claims 1 to 5, comprising the steps of:
1) Yarn weaving: weaving a base fabric by adopting a 40-needle three-bar warp knitting machine, wherein the guide bar GB1, the guide bar GB2 and the guide bar GB3 are of a variable warp knitting structure with at least four needles, the guide bar GB2 is of a knitting chain structure with one needle, and the guide bar GB3 is of a reverse warp knitting structure with three needles;
2) In-cylinder refining: in the refining process, the temperature is 80-90 ℃, the heat preservation time is 15-20min, and the bath ratio is 1:18-20;
3) Dyeing: in the dyeing process, an overflow cylinder is adopted to dye at 120-130 ℃ and pH value of 5-7, and the dyeing and heat preservation time is 30-40min;
4) And (3) drying: in the drying process, the drying temperature is set to be 165-175 ℃ and the speed is set to be 18-25m/min;
5) Napping: the back surface of the napped fabric is provided with short dense nap formed by napped and cut extension lines; when in napping, the weak napping condition under low tension is adopted, the napping is carried out for 12 to 16 times, the tension is set to 2.315 to 3.125 percent, the needle is 260 to 280r/min, and the needle is reversed to 170 to 190r/min;
6) And (3) burnt-out treatment: alkali liquor NAOH concentration is 5-15%, alkali-resistant paste is 30-50%, baking, washing and drying are carried out after burnt-out;
7) Shaping: in the shaping process, the shaping temperature is set to 170 ℃ and the speed is set to 18-25m/min.
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