An ultra-thin soft cashmere knitted fabric and a preparation method thereof

Abstract

The application discloses an ultrathin soft cashmere knitted fabric and a preparation method thereof. The preparation method comprises the following steps: step one, a first knitted yarn is spun from a multi-fiber blended raw material, wherein the fiber blended raw material comprises 10-25 parts of cashmere, 65-70 parts of acrylic fiber, 5-10 parts of bamboo fiber and 5-10 parts of polyester according to weight fraction; a second knitted yarn is spun from a colored fiber raw material by using a siro spinning method, wherein the fiber raw material of the siro spinning method comprises 65-85 parts of colored chitosan fiber, 10-15 parts of wool and 5-20 parts of modified colored polyester fiber according to weight fraction; step two, on-machine knitting, the first knitted yarn and the second knitted yarn are arranged alternately during weaving, and a design draft is woven according to different fabric structure designs to obtain a fabric; and step three, a post-finishing process. The fabric is ultrathin, soft and cashmere-like, antibacterial and anti-pilling, the anti-pilling grade is 4-5, the heat retention rate is greater than or equal to 30%, and the cro value is greater than or equal to 0.15.

Description

Technical Field

[0001] This invention relates to the field of cashmere knitted fabric technology, and in particular to an ultra-thin, soft, and full cashmere knitted fabric and its preparation method. Background Technology

[0002] Cashmere is a very expensive and luxurious textile material used in clothing, often referred to as "soft gold." Cashmere fibers are soft, fine, comfortable, and have excellent warmth retention. Knitted cashmere fabrics are fluffy, warm, soft, and full, possessing not only good wrinkle resistance and breathability but also significant stretch and resilience. However, due to the high cost of cashmere fibers and their curved structure, cashmere fabrics are prone to pilling, affecting the wearing experience. Therefore, making cashmere fabrics lighter and thinner, and enhancing their anti-pilling properties, has always been a development direction for the high-end development of cashmere clothing products. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an ultra-thin, soft, and plush cashmere knitted fabric and its preparation method.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] The first aspect of this invention is to provide a method for preparing an ultra-thin, soft, and plush cashmere knitted fabric, comprising the following steps:

[0006] Step 1: The first knitted yarn is spun from a multi-fiber blended raw material, wherein, by weight, the multi-fiber blended raw material comprises 10-25 parts cashmere, 65-70 parts acrylic fiber, 5-10 parts bamboo fiber and 5-10 parts polyester.

[0007] The second knitting yarn is made by blending colored fiber raw materials using Siro spinning. The fiber raw materials of the Siro spinning include 65-85 parts of colored chitosan fiber, 10-15 parts of wool and 5-20 parts of modified colored polyester fiber by weight.

[0008] Step two, knitting on the machine. During weaving, the first and second knitting yarns are arranged alternately, and the fabric is woven according to the design pattern of different fabric structures to obtain the greige fabric.

[0009] Step 3, finishing process: shaping the greige fabric, boiling, washing, shrinking, drying, intermediate inspection, finishing, brushing, softening and smoothing, napping, shearing, steaming, and calendering to obtain the ultra-thin soft and fluffy cashmere knitted fabric.

[0010] Furthermore, the multi-fiber blended raw material is processed into the first knitted yarn through opening, dyeing, blending, carding, drawing, roving, spinning, and winding. Antistatic agent XFZ-03 is added to the blending process for treatment.

[0011] Further, the colored fiber raw material is blended by the siro spinning, and after opening, carding, combing, drawing, roving, spinning and bobbinning, a second knitting yarn is prepared, and an antistatic agent XFZ-03 is added in the carding process for treatment.

[0012] Further, the step one further comprises: after the first knitting yarn is dyed by one-bath two-step method of cationic dye and reactive dye, an antibacterial agent solution is added, and the temperature is kept at 65-85 DEG C for 10-20 min, and then the liquid is discharged after cooling to 30 DEG C, dehydration, drying to obtain the antibacterial first knitting yarn.

[0013] Further, the solute of the antibacterial agent solution is titanium tetrachloride and magnesium nitrate with a mass ratio of 100: (2-7), and the solvent is ethanol and deionized water with a volume ratio of 1:1.

[0014] Further, the second knitting yarn is subjected to anti-pilling finishing by using an epoxy polyether modified polysiloxane finishing agent.

[0015] Further, the epoxy polyether modified polysiloxane finishing agent comprises the following components in parts by weight: multi-reactivity epoxy polyether 300-400 parts, polysiloxane 300-350 parts, octylphenyl alcohol 30-50 parts, and potassium dichromate 1-2 parts.

[0016] Further, the anti-pilling finishing condition is that the finishing temperature is 50-75 DEG C, and the finishing time is 15-30 min.

[0017] Further, in the finishing process, the back of the fabric is subjected to secondary pulling process, and then the front of the fabric is subjected to primary pulling or sanding process.

[0018] The second aspect of the present application provides an ultra-thin soft cashmere knitting fabric prepared by the preparation method.

[0019] Compared with the prior art, the present application has the following technical effects:

[0020] In the preparation method, the first knitting yarn is subjected to antibacterial modification, and has good antibacterial property, and the second knitting yarn is subjected to anti-pilling finishing by using an epoxy polyether modified polysiloxane finishing agent, and has good anti-pilling property, and the prepared fabric is ultra-thin and soft, and has good antibacterial property, and the anti-pilling grade is 4-5, the heat retention rate is greater than or equal to 30%, and the crove value is greater than or equal to 0.15. DETAILED DESCRIPTION

[0021] The present application will be further described below in combination with specific examples, but not as a limitation of the present application. It should be noted that the examples in the present application and the features in the examples can be combined with each other without conflict.

[0022] Embodiment 1

[0023] The embodiment provides a preparation method of an ultra-thin soft cashmere knitted fabric, comprising the following steps:

[0024] Step one, multi-fiber blended raw materials are subjected to opening, dyeing, carding, combing, drawing, roving, spinning, and winding to form first knitted yarns, and an antistatic agent XFZ-03 is added in the carding process for treatment;

[0025] According to weight parts, the multi-fiber blended raw materials comprise 15 parts of cashmere, 70 parts of acrylic fiber, 10 parts of bamboo fiber, and 5 parts of polyester;

[0026] The first knitted yarns are subjected to one-bath two-step dyeing with cationic dyes and reactive dyes, and then an antibacterial agent solution is added, 65 DEG C is kept for 20 min, and then the liquid is discharged after cooling to 30 DEG C, dehydration, and drying to obtain antibacterial first knitted yarns.

[0027] According to weight parts, the multi-fiber blended raw materials comprise 15 parts of cashmere, 70 parts of acrylic fiber, 10 parts of bamboo fiber, and 5 parts of polyester;

[0028] The second knitted yarns are subjected to opening, carding, combing, drawing, roving, spinning, and winding after the colored fiber raw materials are blended by the sirospun method, and an antistatic agent XFZ-03 is added in the carding process for treatment;

[0029] According to weight parts, the fiber raw materials of the sirospun method comprise 85 parts of colored chitosan fiber, 10 parts of wool, and 5 parts of modified colored polyester fiber;

[0030] The second knitted yarns are subjected to finishing with an epoxy polyether modified polysiloxane finishing agent, so that the second knitted yarns have anti-pilling property;

[0031] According to weight parts, the fiber raw materials of the sirospun method comprise 85 parts of colored chitosan fiber, 10 parts of wool, and 5 parts of modified colored polyester fiber;

[0032] Step two, machine knitting, the first knitted yarns and the second knitted yarns are arranged alternately during weaving, and are woven according to a different fabric structure design pattern to obtain a fabric;

[0033] Step three, post-finishing process: fabric setting, scouring, washing, felting, drying, intermediate inspection, finishing, brushing, softening and smoothing, raising, shearing, steaming, ironing, to obtain the ultra-thin soft cashmere knitted fabric;

[0034] The back finishing process includes first performing secondary raising treatment on the back of the fabric, and then performing once raising treatment on the front of the fabric.

[0035] The prepared fabric is subjected to anti-pilling grade test according to GB / T 4802.1-2008 "Determination of the pilling behavior of textile - Part 1: Circular track method", and the anti-pilling grade of the fabric is 5, the heat retention rate is greater than or equal to 30%, and the crove value is greater than or equal to 0.15.

[0036] Embodiment 2

[0037] The embodiment provides a preparation method of an ultrathin soft cashmere knitted fabric, and the method comprises the following steps:

[0038] In step one, the multi-fiber blended raw material is subjected to opening, dyeing, carding, combing, drawing, roving, spinning, and winding to prepare a first knitted yarn, and an antistatic agent XFZ-03 is added in the carding process for treatment.

[0039] According to weight parts, the multi-fiber blended raw material comprises 20 parts of cashmere, 65 parts of acrylic fiber, 5 parts of bamboo fiber, and 10 parts of polyester.

[0040] The first knitted yarn fiber is subjected to one-bath two-step dyeing with cationic dyes and reactive dyes, and then an antibacterial agent solution is added, and the mixture is kept at 75 DEG C for 15 min, cooled to 30 DEG C, and then discharged and taken out, dehydrated, and dried to obtain an antibacterial first knitted yarn.

[0041] According to weight parts, the multi-fiber blended raw material comprises 20 parts of cashmere, 65 parts of acrylic fiber, 5 parts of bamboo fiber, and 10 parts of polyester.

[0042] The colored fiber raw material is blended by the siro spinning process, and then subjected to opening, carding, combing, drawing, roving, spinning, and winding to prepare a second knitted yarn, and an antistatic agent XFZ-03 is added in the carding process for treatment.

[0043] According to weight parts, the fiber raw material for the siro spinning process comprises 78 parts of colored chitosan fiber, 12 parts of wool, and 10 parts of modified colored polyester fiber.

[0044] The second knitted yarn is subjected to finishing with an epoxy-based polyether modified polysiloxane finishing agent, so that the second knitted yarn has anti-pilling property.

[0045] According to weight parts, the epoxy-based polyether modified polysiloxane finishing agent comprises the following components: 350 parts of multi-reactivity epoxy-based polyether, 380 parts of polysiloxane, 35 parts of octylphenyl alcohol, and 1.5 parts of potassium dichromate; and the anti-pilling finishing conditions are as follows: temperature is 60 DEG C, and time is 20 min.

[0046] Step two, knitting, the first knitting yarn and the second knitting yarn are arranged alternately during weaving, and a design draft is woven according to different fabric structure designs, to obtain a fabric

[0047] Step three, post-finishing process: fabric setting, scouring, washing, shrinking, drying, intermediate inspection, finishing, brushing, softening and smoothing, raising, shearing, steaming, and ironing, to obtain the ultra-thin soft cashmere knitted fabric.

[0048] In the raising process in the post-finishing, the back of the fabric is subjected to secondary raising treatment, and the front of the fabric is subjected to primary raising treatment.

[0049] The prepared fabric is subjected to anti-pilling grade test according to GB / T 4802.1-2008 “Determination of the Pilling Behavior of Textile Fabrics Part 1: Circular Track Method”, the anti-pilling grade of the fabric is 4, the heat retention rate is greater than or equal to 30%, and the crocking value is greater than or equal to 0.15.

[0050] Example 3

[0051] The embodiment provides a preparation method of an ultra-thin soft cashmere knitted fabric, comprising the following steps:

[0052] Step one, a plurality of fiber blended raw materials are subjected to opening, dyeing, carding, combing, drawing, roving, spinning, and winding to prepare a first knitting yarn, and an antistatic agent XFZ-03 is added for treatment in the carding process.

[0053] According to weight parts, the plurality of fiber blended raw materials include 10 parts of cashmere, 70 parts of acrylic fiber, 10 parts of bamboo fiber, and 10 parts of polyester.

[0054] The first knitting yarn fiber is subjected to one-bath two-step dyeing with cationic dyes and reactive dyes, and then an antibacterial agent solution is added, 85 DEG C heat preservation is performed for 10 min, the solution is discharged after cooling to 30 DEG C, dehydration is performed, and drying is performed to obtain an antibacterial first knitting yarn.

[0055] According to weight parts, the plurality of fiber blended raw materials include 10 parts of cashmere, 70 parts of acrylic fiber, 10 parts of bamboo fiber, and 10 parts of polyester.

[0056] The fiber raw material of the Sirospun is blended, subjected to opening, carding, combing, drawing, roving, spinning, and winding to prepare a second knitting yarn, and an antistatic agent XFZ-03 is added for treatment in the carding process.

[0057] According to weight parts, the fiber raw material of the Sirospun includes 70 parts of colored chitosan fiber, 15 parts of wool, and 15 parts of modified colored polyester fiber.

[0058] The second knitted yarn is finished by using an epoxy polyether modified polysiloxane finishing agent, so that the second knitted yarn has anti-pilling property.

[0059] The epoxy polyether modified polysiloxane finishing agent comprises the following components by weight: 400 parts of a multi-reactivity epoxy polyether, 320 parts of polysiloxane, 50 parts of octylphenyl xylenol, and 2 parts of potassium dichromate; and the anti-pilling finishing conditions are: a temperature of 75 DEG C and a time of 15 min.

[0060] Step two, machine knitting, the first knitted yarn and the second knitted yarn are arranged alternately during weaving, and a design draft is woven according to different fabric structure designs, to obtain a fabric.

[0061] Step three, post-finishing process: fabric setting, scouring, washing, shrinking, drying, intermediate inspection, finishing, brushing, softening and smoothing, raising, shearing, steaming, ironing, to obtain the ultra-thin soft cashmere knitted fabric.

[0062] In the raising process in the post-finishing, the back of the fabric is subjected to secondary raising treatment, and the front of the fabric is subjected to primary sanding treatment.

[0063] The prepared fabric is subjected to anti-pilling grade test by using GB / T 4802.1-2008 "Determination of the Pilling Behavior of Textile - Part 1: Circular Track Method", the anti-pilling grade of the fabric is 4-5, the heat retention rate is greater than or equal to 30%, and the crove value is greater than or equal to 0.15.

[0064] The above merely describes preferred embodiments of the present application, and is not intended to limit the embodiments and protection scope of the present application, and those skilled in the art should be able to realize that any equivalent replacement and obvious changes made according to the content of the present application should be included in the protection scope of the present application.

Claims

1. A process for the preparation of super thin soft cashmere knitted fabric characterized in that, It comprises the following steps: Step one, using multi-fiber blended raw materials to spin the first knitting yarn, wherein the multi-fiber blended raw materials comprise 10-25 parts of cashmere, 65-70 parts of acrylic fiber, 5-10 parts of bamboo fiber and 5-10 parts of polyester, according to the weight fraction; Using siro spinning, the colored fiber raw material is blended and spun into the second knitting yarn, wherein the fiber raw material of siro spinning comprises 65-85 parts of colored chitosan fiber, 10-15 parts of wool and 5-20 parts of modified colored polyester fiber, according to the weight fraction; Step two, on-machine knitting, the first knitting yarn and the second knitting yarn are arranged alternately during weaving, and the design draft is woven according to different fabric structure design to obtain the grey cloth; Step three, post-finishing process: grey cloth setting, scouring, washing, shrinking, drying, intermediate inspection, finishing, brushing, softening and smoothing, raising, shearing, steaming in a tank, ironing to obtain the ultra-thin soft cashmere knitting fabric; The multi-fiber blended raw material is made into the first knitting yarn after opening, dyeing, carding, cotton combing, slivering, roving, spinning and winding, and an antistatic agent XFZ-03 is added for treatment in the carding process; The siro spinning is used to make the second knitting yarn after opening, carding, cotton combing, slivering, roving, spinning and winding of the colored fiber raw material, and an antistatic agent XFZ-03 is added for treatment in the carding process.

2. The production method according to claim 1, characterized by, The step one further comprises: after the first knitting yarn is dyed by one-bath two-step method with cationic dyes and reactive dyes, an antibacterial agent solution is added, 65-85℃ is kept for 10-20min, and then the liquid is discharged after cooling to 30℃, dehydration, drying to obtain the antibacterial first knitting yarn.

3. The preparation method according to claim 2, characterized in that, The solute of the antibacterial agent solution is titanium tetrachloride and magnesium nitrate with a mass ratio of 100:(2-7), and the solvent is ethanol and deionized water with a volume ratio of 1:

1.

4. The production method according to claim 1, characterized by, The second knitting yarn is subjected to anti-pilling finishing with an epoxy polyether modified polysiloxane finishing agent.

5. The preparation method according to claim 4, characterized in that, The epoxy polyether modified polysiloxane finishing agent comprises the following components by weight: 300-400 parts of multi-reactivity epoxy polyether, 300-350 parts of polysiloxane, 30-50 parts of octylphenyl alcohol and 1-2 parts of potassium dichromate.

6. The preparation method according to claim 4, characterized in that, The anti-pilling finishing conditions are: temperature of 50-75℃ and time of 15-30min.

7. The preparation method according to claim 1, characterized in that, In the raising process in the post-finishing, the back of the fabric is subjected to secondary raising treatment, and then the front of the fabric is subjected to primary raising or milling treatment.

8. An ultra-thin soft cashmere knitting fabric prepared by the preparation method of any one of claims 1-7.