CN111349997A - Water-soluble fiber and cashmere blended 36-count semi-worsted yarn and preparation method thereof - Google Patents
Water-soluble fiber and cashmere blended 36-count semi-worsted yarn and preparation method thereof Download PDFInfo
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- CN111349997A CN111349997A CN202010335274.1A CN202010335274A CN111349997A CN 111349997 A CN111349997 A CN 111349997A CN 202010335274 A CN202010335274 A CN 202010335274A CN 111349997 A CN111349997 A CN 111349997A
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- water
- cashmere
- raw material
- soluble
- wool
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- 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
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
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- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/06—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Woven Fabrics (AREA)
Abstract
The invention discloses a 36-count semi-worsted yarn blended by water-soluble fiber and cashmere, which comprises the following raw material components in percentage by weight: 35-45% of water-soluble fiber, 55-65% of cashmere raw material, and the sum of the weight percentages of the raw material components is 100%. The advantages are that: after the water-soluble fibers are opened, the water-soluble fibers are longitudinally arranged, and are blended with the cashmere raw material layer to be blended again, so that the raw materials after being blended again are easy to comb in a carding process, yarn evenness is more uniform, and the phenomenon of hole breaking of the finished fabric can be avoided when the water-soluble fibers in the finished fabric are removed in the subsequent process; the invention can realize the preparation of semi-worsted yarn according to the existing roving equipment, thereby reducing the investment cost; and after the water-soluble fiber in the raw materials is increased to 35-45%, the qualified 36 semi-worsted yarns can be blended, the input amount of cashmere raw materials is reduced, the cost is reduced, and the economic benefit is improved.
Description
The technical field is as follows:
the invention relates to the technical field of cashmere textile, in particular to a 36-count semi-worsted yarn blended by water-soluble fibers and cashmere and a preparation method thereof.
Background art:
the industrial textile technology comprises the steps of roving, spinning and semi-spinning, wherein the semi-spinning product is a multi-component blending technology, and the single-raw-material spinning wearability defect is overcome by blending with natural fibers such as cotton, wool, silk and hemp, so that the industrial textile technology not only can meet the environmental protection requirement, but also can improve the wearing comfort and wearability; the water-soluble fiber and the cashmere are blended, high-quality cashmere is not needed, the requirement on the fiber number of the cross section of the yarn can be met only by adding the water-soluble fiber in a certain proportion in the spinning process, the spinnability of the yarn can be improved, the water-soluble fiber is removed in the dyeing and finishing stage after the fabric is manufactured by a machine, the light-weight and fluffy wool fabric is obtained, and the grade of the wool fabric is improved.
The existing semi-worsted technology of water-soluble fiber and cashmere needs to add semi-worsted equipment, for example, a duplex or multi-union carding machine in the roving technology is replaced by a cotton spinning carding machine, so that the equipment investment cost is high; and if the content of the water-soluble fiber is increased, the fabric made of the yarn spun by the existing semi-worsted process and equipment is easy to have broken holes when the water-soluble fiber in the fabric is removed, so that the product quality is influenced.
The invention content is as follows:
the invention aims to provide a 36-count semi-worsted yarn blended by water-soluble fibers and cashmere and a preparation method thereof, wherein the semi-worsted yarn is spun by adding water-soluble fibers into cashmere raw materials, and after the water-soluble fibers are removed, the effect of spinning 55-65 counts of worsted pure cashmere yarns can be achieved.
The invention is implemented by the following technical scheme: the 36-count semi-worsted yarn blended by the water-soluble fibers and the cashmere comprises the following raw material components in percentage by weight: 35-45% of water-soluble fiber, 55-65% of cashmere raw material, and the sum of the weight percentages of the raw material components is 100%; the length of the cashmere raw material is more than or equal to 36mm, and the fineness is less than or equal to 16 um.
Further, the water-soluble fiber is vinylon fiber.
Furthermore, the water-soluble fiber accounts for 40%, and the cashmere raw material accounts for 60%.
The preparation method of the water-soluble fiber and cashmere blended 36-count semi-worsted yarn comprises the following steps:
(1) preparing an auxiliary agent: calculated by the total weight of the fed materials of the water-soluble fiber and the cashmere raw materials, the total weight of the fed materials of the components is as follows: 1.5 to 1.7 percent of wool oil and 0.9 to 1.1 percent of antistatic agent; adding the wool oil and the antistatic agent into the soft water, and uniformly stirring to completely emulsify the wool oil and the antistatic agent;
(2) fluffing water-soluble fibers: opening the water-soluble fibers by using a fiber opener to enable the water-soluble fibers to be in a fluffy state;
(3) cashmere raw material and wool: dyeing the cashmere raw material, adding an auxiliary agent, performing wool blending treatment in a wool blending machine, standing the wool blended cashmere raw material for 18-24 hours, and controlling the reversion rate to be 24-28%;
(4) paving and mixing materials: alternately and uniformly layering and mixing the fluffy water-soluble fiber and the static cashmere raw material;
(5) blending again: performing wool blending treatment on the uniformly mixed water-soluble fiber and cashmere raw materials in a wool blending machine;
(6) combing: carding the re-carded raw materials on a carding machine, and controlling the environmental humidity to be 40-50%;
(7) spinning: and twisting the carded yarn by using a mule with the yarn twist of 510T/M.
Further, the wool oil accounted for 1.6%, the antistatic agent accounted for 1.0%.
The invention has the advantages that: after the water-soluble fibers are opened, the water-soluble fibers are longitudinally arranged, and then are mixed with the cashmere raw material layer for blending, so that the raw materials after blending are easy to comb in a carding process, yarn evenness is more uniform, and the phenomenon of hole breaking of the finished fabric can be effectively avoided when the water-soluble fibers in the finished fabric are removed in the subsequent process; by the preparation method, the semi-worsted yarn can be prepared according to the existing roving equipment, so that the investment cost is reduced; in addition, after the water-soluble fiber in the raw materials is increased to 35-45%, the qualified 36 semi-worsted yarns can be blended, so that the input amount of cashmere raw materials can be reduced, the cost is reduced, and the economic benefit is improved; and after the fabric made of the semi-worsted yarn is dissolved in water, the effect of worsted 55-65 yarn products can be achieved, and the semi-worsted yarn is popular with consumers.
The specific implementation mode is as follows:
example 1: the 36-count semi-worsted yarn blended by the water-soluble fibers and the cashmere comprises the following raw material components in percentage by weight: 35% of water-soluble fiber and 65% of cashmere raw material, wherein the sum of the weight percentages of the raw material components is 100%; the length of the cashmere raw material is more than or equal to 36mm, the fineness is less than or equal to 16um, and the water-soluble fiber is vinylon fiber.
Example 2: the 36-count semi-worsted yarn blended by the water-soluble fibers and the cashmere comprises the following raw material components in percentage by weight: 45% of water-soluble fiber and 55% of cashmere raw material, wherein the sum of the weight percentages of the raw material components is 100%; the length of the cashmere raw material is more than or equal to 36mm, the fineness is less than or equal to 16um, and the water-soluble fiber is vinylon fiber.
Example 3: the 36-count semi-worsted yarn blended by the water-soluble fibers and the cashmere comprises the following raw material components in percentage by weight: 40% of water-soluble fiber and 60% of cashmere raw material, wherein the sum of the weight percentages of the raw material components is 100%; the length of the cashmere raw material is more than or equal to 36mm, the fineness is less than or equal to 16um, and the water-soluble fiber is vinylon fiber.
Example 4: the preparation method of the water-soluble fiber and cashmere blended 36-count semi-worsted yarn for preparing the embodiment 3 comprises the following steps:
(1) preparing an auxiliary agent: calculated by the total weight of the fed materials of the water-soluble fiber and the cashmere raw materials, the total weight of the fed materials of the components is as follows: 1.5% of wool oil and 0.9% of antistatic agent; adding the wool oil and the antistatic agent into the soft water, and uniformly stirring to completely emulsify the wool oil and the antistatic agent; according to the invention, the wool oil is CW type, the antistatic agent is AL type, and the wool oil plays a lubricating role on water-soluble fiber and cashmere raw materials, so that the wool oil is prevented from being broken in the processing process; the generation of static electricity can be prevented by the antistatic agent;
(2) fluffing water-soluble fibers: opening the water-soluble fibers by using a fiber opener to enable the water-soluble fibers to be in a fluffy state; the silk opener selects Shandong Jiaonang 2004 type;
(3) cashmere raw material and wool: dyeing the cashmere raw material, adding an auxiliary agent, performing wool blending treatment in a wool blending machine, standing the wool blended cashmere raw material for 18 hours to ensure that the auxiliary agent is fully absorbed by the cashmere raw material, so that no water is attached to the surface of the cashmere raw material, and the vinylon fiber is prevented from being melted when the wool blended raw material is mixed with the vinylon fiber; controlling the backward rate at 24%;
(4) paving and mixing materials: alternately and uniformly layering and mixing the fluffy water-soluble fiber and the static cashmere raw material;
(5) blending again: performing wool blending treatment on the uniformly mixed water-soluble fiber and cashmere raw materials in a wool blending machine;
(6) combing: carding the re-carded raw materials on a carding machine, and controlling the environmental humidity to be 40%; the carding machine is selected from Japanese Beijing and WL-59 type;
(7) spinning: twisting the carded yarn by using a mule with the yarn twist of 510T/M; the spinning frame selects Japanese Beijing and 627 spindles.
By the preparation method, the semi-worsted yarn can be prepared according to the existing roving equipment, and the investment cost is reduced.
Example 5: the preparation method of the water-soluble fiber and cashmere blended 36-count semi-worsted yarn for preparing the embodiment 3 comprises the following steps:
(1) preparing an auxiliary agent: calculated by the total weight of the fed materials of the water-soluble fiber and the cashmere raw materials, the total weight of the fed materials of the components is as follows: 1.7% of wool oil and 1.1% of antistatic agent; adding the wool oil and the antistatic agent into the soft water, and uniformly stirring to completely emulsify the wool oil and the antistatic agent;
(2) fluffing water-soluble fibers: opening the water-soluble fibers by using a fiber opener to enable the water-soluble fibers to be in a fluffy state;
(3) cashmere raw material and wool: dyeing the cashmere raw material, adding an auxiliary agent, performing wool blending treatment in a wool blending machine, standing the wool blended cashmere raw material for 24 hours, and controlling the reversion rate to be 28%;
(4) paving and mixing materials: alternately and uniformly layering and mixing the fluffy water-soluble fiber and the static cashmere raw material;
(5) blending again: performing wool blending treatment on the uniformly mixed water-soluble fiber and cashmere raw materials in a wool blending machine;
(6) combing: carding the raw materials after the re-carding on a carding machine, and controlling the environmental humidity at 50%;
(7) spinning: and twisting the carded yarn by using a mule with the yarn twist of 510T/M.
Example 6: the preparation method of the water-soluble fiber and cashmere blended 36-count semi-worsted yarn for preparing the embodiment 3 comprises the following steps:
(1) preparing an auxiliary agent: calculated by the total weight of the fed materials of the water-soluble fiber and the cashmere raw materials, the total weight of the fed materials of the components is as follows: 1.6 percent of wool oil and 1.0 percent of antistatic agent; adding the wool oil and the antistatic agent into the soft water, and uniformly stirring to completely emulsify the wool oil and the antistatic agent;
(2) fluffing water-soluble fibers: opening the water-soluble fibers by using a fiber opener to enable the water-soluble fibers to be in a fluffy state;
(3) cashmere raw material and wool: dyeing the cashmere raw material, adding an auxiliary agent, performing wool blending treatment in a wool blending machine, standing the wool blended cashmere raw material for 22 hours, and controlling the reversion rate to be 26%;
(4) paving and mixing materials: alternately and uniformly layering and mixing the fluffy water-soluble fiber and the static cashmere raw material;
(5) blending again: performing wool blending treatment on the uniformly mixed water-soluble fiber and cashmere raw materials in a wool blending machine;
(6) combing: carding the raw materials after the re-carding on a carding machine, and controlling the environmental humidity to be 45%;
(7) spinning: and twisting the carded yarn by using a mule with the yarn twist of 510T/M.
According to the invention, after the water-soluble fibers are opened, the water-soluble fibers are longitudinally arranged, and then are blended with the cashmere raw material layer for reblending, so that the reblended raw materials are easy to comb in a carding process, the yarn evenness is more uniform, and the phenomenon of hole breaking of the finished fabric can be effectively avoided when the water-soluble fibers in the finished fabric are subsequently removed.
According to the invention, after the water-soluble fiber in the raw materials is increased to 35% -45%, the qualified 36 semi-worsted yarns can be blended, so that the input amount of cashmere raw materials can be reduced, the cost is reduced, and the economic benefit is improved.
The quality indexes of the yarn produced by the invention are compared with those of domestic first-class yarns, and the comparison is shown in a table 1:
TABLE 1
After the water-soluble fiber in the raw materials is increased to 35-45%, the qualified 36 semi-worsted yarns can still be blended, so that the input amount of cashmere raw materials can be reduced, the cost is reduced, and the economic benefit is improved; and through detecting the quality of the finished yarn of the invention, as can be seen from table 1, the quality of the finished yarn produced by the invention reaches the advanced level of domestic first-class yarn, the spun yarn has high count, the finished yarn has high bulkiness and good hand feeling, and after the fabric made of the yarn of the invention is dissolved in water, the effect of spinning 55-65 yarn fabric products can be achieved, thus being popular with consumers.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The 36-count semi-worsted yarn blended by the water-soluble fibers and the cashmere is characterized by comprising the following raw material components in percentage by weight: 35-45% of water-soluble fiber, 55-65% of cashmere raw material, and the sum of the weight percentages of the raw material components is 100%; the length of the cashmere raw material is more than or equal to 36mm, and the fineness is less than or equal to 16 um.
2. The 36-count semi-worsted yarn blended with water-soluble fibers and cashmere according to claim 1, wherein the water-soluble fibers are vinylon fibers.
3. The 36-count semi-worsted yarn blended with water-soluble fibers and cashmere according to claim 1, wherein the water-soluble fibers account for 40% and the cashmere raw material accounts for 60%.
4. The preparation method of the water-soluble fiber and cashmere blended 36-count semi-worsted yarn is characterized by comprising the following steps:
(1) preparing an auxiliary agent: calculated by the total weight of the fed materials of the water-soluble fiber and the cashmere raw materials, the total weight of the fed materials of the components is as follows: 1.5 to 1.7 percent of wool oil and 0.9 to 1.1 percent of antistatic agent; adding the wool oil and the antistatic agent into the soft water, and uniformly stirring to completely emulsify the wool oil and the antistatic agent;
(2) fluffing water-soluble fibers: opening the water-soluble fibers by using a fiber opener to enable the water-soluble fibers to be in a fluffy state;
(3) cashmere raw material and wool: dyeing the cashmere raw material, adding an auxiliary agent, performing wool blending treatment in a wool blending machine, standing the wool blended cashmere raw material for 18-24 hours, and controlling the reversion rate to be 24-28%;
(4) paving and mixing materials: alternately and uniformly layering and mixing the fluffy water-soluble fiber and the static cashmere raw material;
(5) blending again: performing wool blending treatment on the uniformly mixed water-soluble fiber and cashmere raw materials in a wool blending machine;
(6) combing: carding the re-carded raw materials on a carding machine, and controlling the environmental humidity to be 40-50%;
(7) spinning: and twisting the carded yarn by using a mule with the yarn twist of 510T/M.
5. The method for preparing the water-soluble fiber and cashmere blended 36-count semi-worsted yarn according to claim 4, wherein the wool oil accounts for 1.6%, and the antistatic agent accounts for 1.0%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010335274.1A CN111349997A (en) | 2020-04-24 | 2020-04-24 | Water-soluble fiber and cashmere blended 36-count semi-worsted yarn and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010335274.1A CN111349997A (en) | 2020-04-24 | 2020-04-24 | Water-soluble fiber and cashmere blended 36-count semi-worsted yarn and preparation method thereof |
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| CN111349997A true CN111349997A (en) | 2020-06-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442771A (en) * | 2020-11-13 | 2021-03-05 | 浙江羊绒世家服饰有限公司 | Water-soluble fiber and high count cashmere yarn spinning process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677243A (en) * | 2012-05-09 | 2012-09-19 | 宁夏嘉源绒业集团有限公司 | Preparation method of superfine cashmere woven yarn |
| CN102704099A (en) * | 2012-06-06 | 2012-10-03 | 内蒙古鹿王羊绒有限公司 | 220Nm pure cashmere spun yarn and preparation method thereof |
| CN103924395A (en) * | 2014-04-15 | 2014-07-16 | 清华大学 | Double-faced woollen spun fingering yarn machine embroidering method and application thereof |
| CN106435887A (en) * | 2016-07-25 | 2017-02-22 | 赤峰东盛亿纺织有限公司 | 42S ultrafine cashmere high counts woollen hosiery yarn preparation method |
| CN110670196A (en) * | 2019-10-28 | 2020-01-10 | 宁波康赛妮纺织品有限公司 | Semi-worsted pure cashmere high-count yarn and preparation method thereof |
-
2020
- 2020-04-24 CN CN202010335274.1A patent/CN111349997A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677243A (en) * | 2012-05-09 | 2012-09-19 | 宁夏嘉源绒业集团有限公司 | Preparation method of superfine cashmere woven yarn |
| CN102704099A (en) * | 2012-06-06 | 2012-10-03 | 内蒙古鹿王羊绒有限公司 | 220Nm pure cashmere spun yarn and preparation method thereof |
| CN103924395A (en) * | 2014-04-15 | 2014-07-16 | 清华大学 | Double-faced woollen spun fingering yarn machine embroidering method and application thereof |
| CN106435887A (en) * | 2016-07-25 | 2017-02-22 | 赤峰东盛亿纺织有限公司 | 42S ultrafine cashmere high counts woollen hosiery yarn preparation method |
| CN110670196A (en) * | 2019-10-28 | 2020-01-10 | 宁波康赛妮纺织品有限公司 | Semi-worsted pure cashmere high-count yarn and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 梅自强主编: "《纺织辞典》", 31 January 2007, 中国纺织出版社 * |
| 边守正主编: "《邢台概览》", 31 March 2001, 北京图书馆出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112442771A (en) * | 2020-11-13 | 2021-03-05 | 浙江羊绒世家服饰有限公司 | Water-soluble fiber and high count cashmere yarn spinning process |
| CN112442771B (en) * | 2020-11-13 | 2022-03-08 | 浙江羊绒世家服饰股份有限公司 | Water-soluble fiber and high count cashmere yarn spinning process |
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Application publication date: 20200630 |