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Production process of a new type of soft and shape-retaining knitted denim fabric

A knitting denim, production process technology, applied in knitting, weft knitting, textiles and papermaking, etc., can solve the problems of lack of comfort and elasticity, poor color fastness, rough texture, etc., and achieve excellent wet rubbing color fastness, color Good fastness effect

Active Publication Date: 2019-10-18
广州锦兴纺织漂染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional denim clothing is not suitable for women's and children's clothing because of its thick texture, rough feel, and lack of comfort and elasticity. More importantly, traditional denim is dyed with dyes such as indigo and sulfur, which has poor color fastness and is suitable for washing. , stone washing, rubbing, and whitening. However, the color fastness is poor and cannot meet the color fastness requirements of general textiles. For a long time, the National Bureau of Standards has not formulated requirements for wet rubbing color fastness for denim clothing, but the criticism of the market still exists.
On May 26, 2015, the General Administration of Quality Supervision, Inspection and Quarantine and the National Standardization Management Committee issued the national standard GB31701-2015 "Technical Specifications for Safety of Textiles for Infants and Children", and the color fastness to wet rubbing of denim fabrics was set to be greater than 3. The standard of level (dark color greater than level 2-3) has been implemented on June 1, 2016 (the transition period is two years). Traditional denim clothing will face severe challenges. If it cannot meet the national mandatory standards, it will face withdrawal from the market. destiny
[0003] Now the production process in the denim clothing industry is difficult to produce denim fabrics that can meet the requirements of the new national standards, and at the same time make the fabrics have the characteristics of denim style, comfort, softness, and elasticity.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Production process of a new type of soft and shape-retaining knitted denim fabric
  • Production process of a new type of soft and shape-retaining knitted denim fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A kind of production technology of novel soft shape-retaining knitted denim fabric, comprises the following steps:

[0037] 1) Fabric selection: fabric selection and weaving process.

[0038] Fabric A: experimental batch RD1500126; experimental cylinder number H100288.

[0039] Fabric A is 20S / 1 cotton (OE yarn)+16S / 1 combed cotton (slub yarn)+70D spandex single jersey twill, which has a denim effect.

[0040] Weaving process of fabric A

[0041] Requirements and attention points for gray fabric surface: use newly knitted knitted fabrics, and pay attention to the fact that there are no stitches or weaving on the surface of the fabric;

[0042] Row of knitting needles: 1st grade needle, 2nd grade needle, 3rd grade needle, the three kinds of needles are arranged in turn, and the 1.3.5 mold of all needles is added with spandex;

[0043] Row of knitting needle runway or row of water chestnut: as shown in Table 2.

[0044] Table 2: Λ means circle, n means tuck, - means f...

Embodiment 2

[0062] A kind of production technology of novel soft shape-retaining knitted denim fabric, comprises the following steps:

[0063] 1) Fabric selection: fabric selection and weaving process.

[0064] Fabric B: experimental batch RD1600408; experimental cylinder number H228157.

[0065] Fabric B is 30S / 1 Spun polyester + 20S / 1 combed cotton (slub yarn) single jersey twill with a denim effect.

[0066] Weaving process of cloth B

[0067] Requirements and points for attention on the fabric surface of the gray cloth: use newly knitted knitted fabrics, and pay attention to the fact that there are no stitches on the surface of the fabric, and there are no horizontal lines;

[0068] Row of knitting needles: 1st grade needle, 2nd grade needle, 3rd grade needle, the three kinds of needles are arranged in turn, and the 1.3.5 mold of all needles is added with spandex;

[0069] Row of knitting needle runway or row of water chestnut: as shown in Table 4.

[0070] Table 4: Λ means circle...

Embodiment 3

[0083] A kind of production technology of novel soft shape-retaining knitted denim fabric, comprises the following steps:

[0084] 1) Selection of cloth

[0085] Fabric A is 20S / 1 cotton (OE yarn)+16S / 1 combed cotton (slub yarn)+70D spandex single jersey twill, which has a denim effect.

[0086] 2) Cloth A pre-setting process: set the cloth at 190°C for 30 seconds.

[0087] Cloth A is used as the fabric.

[0088] 3) Pre-treatment: Add 0.5g / L penetrant, 1g / L caustic soda, and 1g / L hydrogen peroxide to the fabric, treat at 95°C for 20 minutes, then add 0.2g / L acetic acid and 0.01wt% deoxygenation to the fabric Enzymes carry out peracid deoxygenation treatment.

[0089] 4) Dyeing: Add reactive indigo dye, 50g / L industrial salt, and 10g / L industrial sodium carbonate to the fabric, and dye at 50°C for 40 minutes.

[0090] 5) Post-treatment: Soap the fabric with soaping agent 0.5g / L at 50°C for 10 minutes, and repeat twice.

[0091] 6) Post-finishing and finalizing: heat-settin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a novel soft shape-maintenance knitted denim fabric production process, which comprises the following steps: selecting fabric, performing pretreatment, dyeing, performing aftertreatment, performing final finishing sizing and washing with water. According to the invention, the advantage of good color fastness of reactive-based indigo dye is strengthened, and the prepared fabric feels similar to reactive dye. Meanwhile, the advantages of being comfortable and elastic and maintaining the shape of knitted fabrics are combined. The production process disclosed by the invention enables the color fastness of the knitted denim fabric to meet the requirements of the latest national standard GB31701-2015 Technical Code for Safety of Infants and Children Textile Products.

Description

technical field [0001] The invention relates to the technical field of fabric production, in particular to a production process for knitted denim fabrics, in particular to a production process for novel soft and shape-keeping knitted denim fabrics. Background technique [0002] Traditional denim clothing is not suitable for women's and children's clothing because of its thick texture, rough feel, and lack of comfort and elasticity. More importantly, traditional denim is dyed with dyes such as indigo and sulfur, which has poor color fastness and is suitable for washing. However, the color fastness is poor and cannot meet the color fastness requirements of general textiles. For a long time, the National Bureau of Standards has not formulated requirements for the color fastness to wet rubbing of denim clothing, but the criticism of the market still exists. On May 26, 2015, the General Administration of Quality Supervision, Inspection and Quarantine and the National Standardizat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/38D06P1/673D06M11/50D06M11/38D06M13/188D06M16/00D04B1/14
Inventor 易乾
Owner 广州锦兴纺织漂染有限公司