CN115449956B - Process for reducing vertical strip flaws of jean fabric - Google Patents
Process for reducing vertical strip flaws of jean fabric Download PDFInfo
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- CN115449956B CN115449956B CN202211033741.0A CN202211033741A CN115449956B CN 115449956 B CN115449956 B CN 115449956B CN 202211033741 A CN202211033741 A CN 202211033741A CN 115449956 B CN115449956 B CN 115449956B
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- 239000004744 fabric Substances 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 53
- 230000008569 process Effects 0.000 title claims abstract description 42
- 229920000742 Cotton Polymers 0.000 claims abstract description 74
- 238000004061 bleaching Methods 0.000 claims abstract description 31
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000460 chlorine Substances 0.000 claims abstract description 29
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 29
- 238000009990 desizing Methods 0.000 claims abstract description 23
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000005708 Sodium hypochlorite Substances 0.000 claims abstract description 14
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009941 weaving Methods 0.000 claims abstract description 11
- 238000007730 finishing process Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000005406 washing Methods 0.000 claims description 17
- 238000004513 sizing Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 6
- 102000004190 Enzymes Human genes 0.000 claims description 5
- 108090000790 Enzymes Proteins 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000003518 caustics Substances 0.000 claims description 2
- 238000005562 fading Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 17
- 230000001788 irregular Effects 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- COHYTHOBJLSHDF-BUHFOSPRSA-N indigo dye Chemical compound N\1C2=CC=CC=C2C(=O)C/1=C1/C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-BUHFOSPRSA-N 0.000 description 15
- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 15
- 239000000835 fiber Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/54—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads coloured
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
- D03D15/49—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads textured; curled; crimped
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/21—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen combined with specific additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/23—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using hypohalogenites
-
- 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
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a process for reducing vertical strip flaws of jean fabric, which belongs to the field of jean, and comprises a yarn making process, a weaving process and a finishing process, wherein a slub yarn manufactured in the yarn making process comprises at least three thick knots with unequal knot lengths and details positioned between the thick knots; in the post-finishing procedure, chlorine bleaching is carried out on the jean subjected to desizing treatment, and the jean subjected to the chlorine bleaching treatment is cleaned to obtain a finished product, wherein sodium hypochlorite is dissolved in a chlorine bleaching tank used for the chlorine bleaching treatment, and ozone is introduced into the chlorine bleaching tank. The technology adopts the slub yarn with various slubs, and after the slub yarn is used as warp side by side with common cotton yarn, the slubs between the slub yarns are difficult to align, which is beneficial to the irregular fading effect.
Description
Technical Field
The invention relates to a process for reducing vertical strip flaws of jean fabric, belonging to the field of jean.
Background
Warp yarns of the jean fabric are dyed by the indigo dye, and jean clothes are usually subjected to washing process treatment, so that the indigo dye falls off from the clothes, and the antique effect is achieved. The washing process is one of important processes for giving additional value to jeans wear, and the jeans wear is made to stand on the stage of fashion wear. In order to create more washing styles, it is thought that the jean is woven by blending a slub yarn between the warp yarns, and the suction efficiency of the slub yarn is not the same as that of a normal cotton yarn when dyeing, so that different fading effects can be obtained after washing. However, the bunchy yarn is inevitably arranged side by side with the common cotton yarn, and regular white vertical bars are easy to generate on the surface of the fabric after the fading treatment, so that the distressing effect of the jean fabric is poor, and the appearance of jean clothing is affected.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a process for reducing the occurrence of vertical strip flaws of the jean fabric, and the jean fabric with good distressing effect is made by using bunchy yarns.
The technical scheme adopted for solving the technical problems is as follows:
a process for reducing the appearance of vertical stripe defects in jean fabric, comprising:
yarn making process: manufacturing a slub yarn, wherein the slub yarn comprises at least three thick knots with unequal knot lengths and details positioned between the thick knots;
weaving: the slub yarn subjected to sizing and the common cotton yarn subjected to sizing are arranged side by side to be used as warp yarns, and then are interwoven with weft yarns to form jean;
post-finishing: and (3) chlorine bleaching is carried out on the jean subjected to desizing treatment, and the jean subjected to chlorine bleaching treatment is cleaned to obtain a finished product, wherein sodium hypochlorite is dissolved in a chlorine bleaching tank used for the chlorine bleaching treatment, and ozone is introduced into the chlorine bleaching tank.
In the technology for reducing the appearance of vertical strip flaws on jean fabric, the bunchy yarn with various thick knots is adopted, discontinuous and irregular white exposed lines can appear after the fading treatment, the fading treatment after the garment is made in the prior art is pre-arranged in the after-finishing of the fabric, the method different from the garment washing water is adopted, the different fading effects are made by utilizing sodium hypochlorite and ozone, and the vertical strip flaws are reduced.
In some embodiments, in the yarn making process, the shortest nub is 2cm, the next nub is increased by 5% from the previous nub, until after one nub exceeds 5cm, the next nub is made into the shortest nub again, and the cycle is repeated.
In some embodiments, in the yarn making process, the initial course is 2cm, the next course is increased by 5% from the previous course until after one course exceeds 5cm, the next course is shortened by 5% from the previous course, and after one course is below 2cm, the next course is repeatedly increased by 5% from the previous course, and the cycle is repeated. So can make the yarn branch of slub yarn be gradient change, after slub yarn and ordinary cotton yarn mix the arrangement, be favorable to making the fade effect more irregular, reduce vertical strip flaw.
In some embodiments, in the yarn making process, the ratio of the total length of the nubs to the total length of the details is 1.2:1 to 1.4:1.
optionally, in the weaving process, every four warp yarns are in a group, each group at least comprises one bunchy yarn and at least comprises one common cotton yarn, and the warp yarns of adjacent groups are arranged differently. The arrangement case includes type a: the first one is common cotton yarn, the second one is common cotton yarn, the third one is common cotton yarn, and the fourth one is bunchy yarn; type B: the first one is common cotton yarn, the second one is common cotton yarn, the third one is bunchy yarn, and the fourth one is common cotton yarn; type C: the first one is common cotton yarn, the second one is bunchy yarn, the third one is common cotton yarn, and the fourth one is common cotton yarn; type D: the first yarn is a bunchy yarn, the second yarn is a common cotton yarn, the third yarn is a common cotton yarn, and the fourth yarn is a common cotton yarn; type E: the first one is common cotton yarn, the second one is common cotton yarn, the third one is slub yarn, and the fourth one is slub yarn; type F: the first one is common cotton yarn, the second one is bunchy yarn, the third one is bunchy yarn, and the fourth one is common cotton yarn; type G: the first one is common cotton yarn, the second one is bunchy yarn, the third one is common cotton yarn, and the fourth one is bunchy yarn; type H: the first yarn is a bunchy yarn, the second yarn is a common cotton yarn, the third yarn is a bunchy yarn, and the fourth yarn is a common cotton yarn; type I: the first yarn is a bunchy yarn, the second yarn is a common cotton yarn, the third yarn is a common cotton yarn, and the fourth yarn is a bunchy yarn; type J: the first yarn is a bunchy yarn, the second yarn is a bunchy yarn, the third yarn is a common cotton yarn, and the fourth yarn is a common cotton yarn; type K: the first one is a bunchy yarn, the second one is a bunchy yarn, the third one is a bunchy yarn, and the fourth one is a common cotton yarn; type L: the first one is a bunchy yarn, the second one is a bunchy yarn, the third one is a common cotton yarn, and the fourth one is a bunchy yarn; type M: the first one is a bunchy yarn, the second one is a common cotton yarn, the third one is a bunchy yarn, and the fourth one is a bunchy yarn; type N: the first one is common cotton yarn, the second one is slub yarn, the third one is slub yarn, and the fourth one is slub yarn. When actually weaving, the thick knots on the two bunchy yarns are difficult to align, and the arrangement conditions of warp yarns between adjacent groups are different, so that the complexity of the fabric organization structure is greatly increased, the fading effect is irregular, and the reduction of vertical strip flaws is more facilitated.
Further, the post-finishing procedure sequentially comprises two desizing tanks, a first hot water tank, the chlorine bleaching tank, an alkaline washing tank, a second hot water tank and a clean water tank. In the desizing tank, the fabric is treated by desizing enzyme, the sizing agent on the surface of the fabric is removed, and part of indigo dye attached to the surface of the yarn falls off, so that the desizing effect is achieved, and the primary fading is realized. The first hot water tank is used for removing impurities and flooding on the surface of the desized fabric. In the chlorine bleaching tank, sodium hypochlorite has strong oxidizing property under the action of alkalinity, can act on the indigo dye, and damages the structure of the indigo dye; and sodium hypochlorite can also act on fibers to destroy the structure of the fibers, so that indigo dye falls off from another way, and meanwhile, ozone cooperates with sodium hypochlorite to carry out fading treatment, so that the fall-off of the indigo dye is further quickened, the fading effect of the fabric can be effectively realized, and a plurality of washing procedures of the conventional jean fabric after being made into clothes can be replaced. After the fabric is subjected to ozone treatment, if ozone is continuously attached to the fabric, indigo dye on the fabric is gradually oxidized, yellowing is easy to occur, and particularly, after the bottom surface of the fabric is treated by the alkaline washing tank and the second hot water tank, residual ozone on the surface of the fabric can be effectively removed, and floating color on the surface of the fabric can be removed.
In some embodiments, the desizing tank contains 8g/L to 12g/L of desizing enzyme, 2g/L to 4g/L of penetrant and 0.5g/L to 1g/L of dye resist.
In some embodiments, the first hot water tank and the second hot water tank have a temperature of 50 ℃ to 60 ℃.
In some embodiments, the chlorine bleach tank contains 4g/L-6g/L sodium hypochlorite and 3g/L-5g/L sodium hydroxide, and the ozone flow rate is 3g/min-6g/min.
In some embodiments, the caustic wash tank contains 4g/L to 8g/L sodium hydroxide.
The beneficial effects of the invention are as follows: in the process for reducing the occurrence of vertical bar flaws of the jean fabric, the slub yarn with various slubs is adopted, after the slub yarn and the common cotton yarn are used as warp yarns side by side, the slubs among the slub yarns are difficult to align, discontinuous and irregular white exposed lines can occur after the fading treatment.
Detailed Description
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
The invention provides a process for reducing vertical strip flaws of jean fabric, which comprises the following steps:
yarn making process: and manufacturing the slub yarn, wherein the slub yarn comprises at least three thick knots with unequal knot lengths and details positioned between the thick knots. The specific operation is that a device is additionally arranged on the spinning frame, so that the front roller is changed in speed or stopped, the normal drafting multiple is changed, a thick knot is suddenly generated on the normal base yarn, the rear roller can be suddenly overfed, and the drafting multiple is changed to generate bamboo joints. The base yarn between the knuckles is detail, the principle of making the slub yarn is the prior art, and the application is not further described in detail, and the key point is that the slub yarn comprises at least three knuckles with unequal lengths.
Weaving: the slub yarn after sizing and the common cotton yarn after sizing are used as warp yarns side by side and then interweaved with weft yarns to form jean.
Post-finishing: and (3) chlorine bleaching is carried out on the jean subjected to desizing treatment, and the jean subjected to chlorine bleaching treatment is cleaned to obtain a finished product, wherein sodium hypochlorite is dissolved in a chlorine bleaching tank used for the chlorine bleaching treatment, and ozone is introduced into the chlorine bleaching tank.
Specifically, before the weaving process, a common cotton yarn is also prepared, both the common cotton yarn and the bunchy yarn are subjected to size dyeing, and the common cotton yarn and the bunchy yarn enter the weaving process after being dried.
In the process, the slub yarn with various slubs is adopted, and after the slub yarn and the common cotton yarn are used as warp side by side, the slubs between the slub yarn and the slub yarn are difficult to align, which is beneficial to irregular fading effect.
The slub yarn has various nubs, the front roller of the spinning frame is stopped for different time periods, the shortest nub in the slub yarn is 2cm, the next nub is increased by 5% compared with the previous nub, the next nub is made into the shortest nub again after the next nub exceeds 5cm, the next nub is increased by 5% compared with the previous nub, and the process is circulated. Or the initial course is 2cm, the next course is increased by 5% compared with the previous course until one course exceeds 5cm, the next course is shortened by 5% compared with the previous course until one course is lower than 2cm, the next course is repeatedly increased by 5% compared with the previous course until one course exceeds 5cm, and the next course is shortened by 5% compared with the previous course, thus the cycle is performed. The yarn count of the bunchy yarn is in gradient change, after the bunchy yarn and the common cotton yarn are mixed and distributed, two bunchy yarns with aligned positions are almost impossible, the structure of the fabric is more complex, and vertical strip flaws are reduced.
In the yarn-making step, the ratio of the total length of the nub to the total length of the detail was 1.2:1 to 1.4:1, and the stop time of the front roller of the spinning frame can be adjusted, so that details have various lengths.
In some embodiments, the plain cotton yarn and the slub yarn are arranged in a 3:1 to 1:3 ratio. Specifically, in the weaving process, every four warp yarns are in a group, each group at least comprises one bunchy yarn and at least comprises one common cotton yarn, and the warp yarns of adjacent groups are arranged differently. The arrangement case includes type a: the first one is common cotton yarn, the second one is common cotton yarn, the third one is common cotton yarn, and the fourth one is bunchy yarn; type B: the first one is common cotton yarn, the second one is common cotton yarn, the third one is bunchy yarn, and the fourth one is common cotton yarn; type C: the first one is common cotton yarn, the second one is bunchy yarn, the third one is common cotton yarn, and the fourth one is common cotton yarn; type D: the first yarn is a bunchy yarn, the second yarn is a common cotton yarn, the third yarn is a common cotton yarn, and the fourth yarn is a common cotton yarn; type E: the first one is common cotton yarn, the second one is common cotton yarn, the third one is slub yarn, and the fourth one is slub yarn; type F: the first one is common cotton yarn, the second one is bunchy yarn, the third one is bunchy yarn, and the fourth one is common cotton yarn; type G: the first one is common cotton yarn, the second one is bunchy yarn, the third one is common cotton yarn, and the fourth one is bunchy yarn; type H: the first yarn is a bunchy yarn, the second yarn is a common cotton yarn, the third yarn is a bunchy yarn, and the fourth yarn is a common cotton yarn; type I: the first yarn is a bunchy yarn, the second yarn is a common cotton yarn, the third yarn is a common cotton yarn, and the fourth yarn is a bunchy yarn; type J: the first yarn is a bunchy yarn, the second yarn is a bunchy yarn, the third yarn is a common cotton yarn, and the fourth yarn is a common cotton yarn; type K: the first one is a bunchy yarn, the second one is a bunchy yarn, the third one is a bunchy yarn, and the fourth one is a common cotton yarn; type L: the first one is a bunchy yarn, the second one is a bunchy yarn, the third one is a common cotton yarn, and the fourth one is a bunchy yarn; type M: the first one is a bunchy yarn, the second one is a common cotton yarn, the third one is a bunchy yarn, and the fourth one is a bunchy yarn; type N: the first one is common cotton yarn, the second one is slub yarn, the third one is slub yarn, and the fourth one is slub yarn. In addition, the types between adjacent groups are made different, for example, the type of four consecutive groups of warp yarns is AGCD, BEBC, BDCF, KMJE … …. After the application of such abundant combination, the weave structure of the jean fabric is usually three or more and one or more twills, and although the yarn making weaving can be performed in a certain rule depending on programming, the manufactured structure is almost irregular, and after the special post finishing process of the application, the vertical strip flaws are greatly reduced, so that the jean fabric has good appearance.
The post finishing procedure in the prior art comprises three desizing tanks and four water washing steps, and the finished jean is obtained after drying; after the finished jean is made into the ready-made clothes, the ready-made clothes can be packaged and sold after washing water and fading treatment. In this application, will fade the processing leading to after-treatment process, specifically, after-treatment process includes twice desizing groove, first hot-water tank, chlorine bleaching groove, alkali wash tank, second hot-water tank and clear water tank in proper order. In the desizing tank, the fabric is treated by desizing enzyme, the sizing agent on the surface of the fabric is removed, and part of indigo dye attached to the surface of the yarn falls off, so that the desizing effect is achieved, and the primary fading is realized. The first hot water tank is used for removing impurities and flooding on the surface of the desized fabric. In the chlorine bleaching tank, sodium hypochlorite has strong oxidizing property under the action of alkalinity, can act on the indigo dye, and damages the structure of the indigo dye; and sodium hypochlorite can also act on fibers to destroy the structure of the fibers, so that indigo dye falls off from another way, and meanwhile, ozone cooperates with sodium hypochlorite to carry out fading treatment, so that the fall-off of the indigo dye is further quickened, the fading effect of the fabric can be effectively realized, and a plurality of washing procedures of the conventional jean fabric after being made into clothes can be replaced. After the fabric is subjected to ozone treatment, if ozone is continuously attached to the fabric, indigo dye on the fabric is gradually oxidized, yellowing is easy to occur (particularly, the bottom surface of the fabric), residual ozone on the surface of the fabric can be effectively removed after the fabric is subjected to alkaline washing tank and second hot water tank treatment, and floating color on the surface of the fabric can be removed. Since the bleaching treatment is preceded to the post-finishing procedure in the examples of the application, the technical parameters in the post-finishing are different from the prior art, specifically, the desizing tank contains 8g/L to 12g/L of desizing enzyme, 2g/L to 4g/L of penetrating agent and 0.5g/L to 1g/L of dye resist. The temperature of the first hot water tank and the second hot water tank is 50-60 ℃. The chlorine bleaching tank contains sodium hypochlorite of 4g/L-6g/L and sodium hydroxide of 3g/L-5g/L, and the ozone flow is 3g/min-6g/min. The alkaline washing tank contains 4g/L-8g/L sodium hydroxide.
Specifically, the process for reducing the occurrence of vertical stripe flaws on the jean fabric in the embodiment of the application further comprises pre-shrinking treatment: on a pre-shrinking machine, pre-shrinking the fabric at a speed of 30-40 yards/min, wherein the compression degree of the blanket of the pre-shrinking machine is 12-20%, and the temperature of the blanket is 130-150 ℃.
After the technology for reducing the appearance of the vertical stripe defects of the jean fabric is adopted, as the fabric is woven by adopting common cotton yarns and bunchy yarns with different proportions, the yarns can absorb color unevenly in the dyeing process, the fading effect of the indigo dye is also uneven in the after-finishing process, and the quality problem of the vertical stripe cannot be caused because of the uniform fading effect and longer length of a certain bunchy yarn. The conventional jeans wear-fading treatment is carried out in an industrial washing machine through a plurality of washing water, and needs to be subjected to desizing, general washing, chlorine bleaching, oxygen bleaching, ferment bleaching, cleaning water, drying and other working procedures, wherein each working procedure is independently treated, and after each working procedure is finished, waste water is discharged to prepare a solution for the next working procedure. According to the embodiment of the application, desizing and fading are directly realized on desizing equipment, so that the effect of ageing is achieved, the technological parameters of fading treatment are changed, the quality problem of vertical bars is reduced, and the irregular effect of ageing is achieved.
In the description of the present specification, the descriptions of the terms "one embodiment," "certain embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (9)
1. A process for reducing the appearance of vertical stripe defects in jean fabric, comprising:
yarn making process: manufacturing a slub yarn, wherein the slub yarn comprises at least three thick knots with unequal knot lengths and details positioned between the thick knots;
weaving: the slub yarn subjected to sizing and the common cotton yarn subjected to sizing are arranged side by side to be used as warp yarns, and then are interwoven with weft yarns to form jean;
post-finishing: chlorine bleaching is carried out on the jean subjected to desizing treatment, and the jean subjected to the chlorine bleaching treatment is cleaned to obtain a finished product, wherein sodium hypochlorite is dissolved in a chlorine bleaching tank used for the chlorine bleaching treatment, and ozone is introduced into the chlorine bleaching tank;
in the yarn making process, the shortest rough knot is 2cm, the next rough knot is increased by 5% compared with the previous rough knot, and the next rough knot is made into the shortest rough knot again after one rough knot exceeds 5cm, and the process is circulated.
2. The process for reducing vertical bar defects on jean fabric according to claim 1, wherein in the yarn making process, the initial course is 2cm, the next course is increased by 5% compared with the previous course until one course exceeds 5cm, the next course is shortened by 5% compared with the previous course until one course is lower than 2cm, and the next course is repeatedly increased by 5% compared with the previous course, thus the cycle is repeated.
3. The process for reducing the occurrence of vertical bar flaws in jean fabric according to claim 1, wherein in the yarn making process, the ratio of the total length of the nubs to the total length of the details is 1.2:1 to 1.4:1.
4. the process for reducing vertical bar defects in jean fabric according to claim 1, wherein in the weaving process, every four warp yarns are in a group, each group comprises at least one bunchy yarn and at least one common cotton yarn, and the warp yarns of adjacent groups are arranged differently.
5. The process for reducing vertical bar flaws on jean fabric according to claim 1, wherein the post finishing process comprises two desizing tanks, a first hot water tank, the chlorine bleaching tank, an alkaline washing tank, a second hot water tank and a clean water tank in sequence.
6. The process for reducing vertical bar flaws on jean fabric as recited in claim 5, wherein the desizing tank contains 8g/L to 12g/L desizing enzyme, 2g/L to 4g/L penetrant and 0.5g/L to 1g/L dye resist.
7. The process for reducing the occurrence of vertical bar flaws in jean fabric as recited in claim 5, wherein the temperature of the first hot water tank and the second hot water tank is 50 ℃ to 60 ℃.
8. The process for reducing vertical bar flaws on jean fabric according to claim 5, wherein the chlorine bleaching tank contains sodium hypochlorite of 4g/L-6g/L and sodium hydroxide of 3g/L-5g/L, and the ozone flow is 3g/min-6g/min.
9. The process for reducing vertical bar flaws on jean fabric as recited in claim 5, wherein the caustic wash tank contains 4g/L to 8g/L sodium hydroxide.
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