CN107604495B - Wear-resistant and heat-resistant blended yarn - Google Patents
Wear-resistant and heat-resistant blended yarn Download PDFInfo
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- CN107604495B CN107604495B CN201710862048.7A CN201710862048A CN107604495B CN 107604495 B CN107604495 B CN 107604495B CN 201710862048 A CN201710862048 A CN 201710862048A CN 107604495 B CN107604495 B CN 107604495B
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Abstract
The invention discloses a wear-resistant and heat-resistant blended yarn and a preparation method thereof, the wear-resistant and heat-resistant blended yarn is formed by uniformly mixing polylactic acid fibers, copper ammonia fibers and cotton fibers, and the polylactic acid fibers account for 25-35 parts by weight; the copper ammonia fiber accounts for 20-30 parts; the preparation method of the wear-resistant and heat-resistant blended yarn comprises the steps of carrying out nano-reinforcement, blowing-carding process, drawing, spinning and spraying on the cotton fiber in pretreatment, and carrying out strength reinforcement treatment on the prepared blended yarn, and the prepared blended yarn has the softness of common blended yarn, the strength of polylactic acid fiber and the heat resistance of copper ammonia fiber, and is environment-friendly blended yarn.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to blended yarn, and specifically relates to wear-resistant and heat-resistant blended yarn and a preparation method thereof.
Background
In recent years, due to the increasingly prominent problems of resource shortage, environmental protection and the like, the enhancement of environmental awareness and the deepening of sustainable development concept, the research and application of natural fibers are receiving more and more attention, and polylactic acid fibers have physical properties similar to those of PET fibers, not only have high crystallinity, but also have the same transparency; the fiber has high heat resistance and high strength due to high crystallinity and high orientation degree, can be spun by applying a conventional processing technology without special equipment and operation technology, can be decomposed into carbon dioxide and water under the action of microorganisms in soil or seawater after being discarded, cannot emit toxic gas during combustion, cannot cause pollution, and is ecological fiber with sustainable development; the cuprammonium fiber is a regenerated cellulose fiber, and because the section is circular and has no skin-core structure, the fiber can bear high stretching, and the prepared monofilament is thin, the fabric has soft hand feeling, soft luster and silk feeling; the cotton fiber is the main raw material of the textile industry in China, and the cotton fiber occupies a very important position in the textile fiber, the cotton fiber product has good moisture absorption and air permeability, is soft and warm, and has good spinning performance, but at high temperature, the cotton wax is easy to melt, so the cotton cloth is easy to wind a roller and a rubber roller.
The blending of different types of fibers is widely applied to the textile field as a common method for improving the fiber performance, and the blending of the natural fibers and the high-performance fibers not only can expand the application field of the natural fibers and improve the added value of the natural fibers, but also is an important means for improving the performance of the high-performance fibers and reducing the price of high-performance fiber products. Compared with pure natural fiber and high-performance fiber, the blended product has stronger advantages in performance and price, and paves the way for the wide application of the blended product in the fields of textile and composite material. For example, in chinese patent publication No. CN103290573A, blended yarns with good mechanical properties and yarn evenness are prepared from air conditioning fibers and cotton fibers, and in chinese patent publication No. CN104651998A, blended yarns with high flexibility and low cost are prepared from cotton fibers and palm fiber materials. But the blended yarn in the current market has single function and less modification to the yarn, and mainly modifies the fabric in the later period to increase the production cost.
Disclosure of Invention
According to the defects of the prior art, the technical problem to be solved by the invention is to provide the wear-resistant and heat-resistant blended yarn and the preparation method thereof, the strength of the cotton fiber is improved by modifying the cotton fiber, and the wear-resistant and heat-resistant blended yarn is prepared by adding the polylactic acid fiber and the cuprammonium rayon fiber.
In order to achieve the purpose, the invention provides the following technical scheme:
the wear-resistant and heat-resistant blended yarn comprises the following components in parts by weight:
25-35 parts of polylactic acid fiber;
20-30 parts of copper ammonia fiber;
35-55 parts of cotton fibers.
Preferably, the blended yarn comprises the following components in parts by weight:
30 parts of polylactic acid fiber;
25 parts of copper ammonia fiber;
45 parts of cotton fibers.
Preferably, the polylactic acid fiber has the specification of 1.43-1.54dtex × 38mm and the dry breaking strength of 40.2cN/dtex, the copper ammonia fiber has the specification of 0.9-1.1dtex × 38mm and the dry breaking strength of 145.3cN/dtex, the moisture regain is 12-12.5%, and the cotton fiber has the specification of 1.41-1.53dtex × 38mm and the impurity content is 1.8%.
1) Pretreatment: premixing long stapled cotton and fine stapled cotton, mixing, soaking in 5% ethanol urea aqueous solution for 1-1.5 hr, atomizing, and spraying modified nanometer SiO2Standing for 10-12h to obtain cotton fiber, wherein the modified nano SiO2The amount of the cotton fiber is 10-20% of the amount of the cotton fiber;
2) blowing-carding process: weighing polylactic acid fiber, copper ammonia fiber and cotton fiber in proportion, and performing blowing-carding process twice to obtain raw strips;
3) drawing: drawing the raw slivers in a three-way combination mode to obtain cooked slivers;
4) spinning: spinning the cooked sliver by adopting a sirofil spinning technology to obtain yarn;
5) spraying: spraying PU solution with solid content of 23-25% and viscosity of 25.1-26.5mPa.s onto the yarn; and obtaining the blended yarn.
Preferably, the modified nano SiO2Is prepared from SiO with the mass ratio of 1:0.032Mixing with sodium dodecylbenzenesulfonate.
Preferably, the blowing-carding-drawing process conditions are that the spacing between a cylinder and a cover plate is 0.11mm, 0.12mm and 0.13mm, the speed of a licker-in is set to 1050prm/min, the speed of the cylinder is set to 510prm/min, six fixed cover plates are arranged, the speed of a movable cover plate is set to 170prm/min, and the speed of a doffer is set to 850 prm/mm.
Preferably, the drawing process parameters are that the head and the tail are fed by seven raw slivers, the head and the tail are fed by six raw slivers, the draft multiple of a rear zone is 1.3-1.5, the roller gauge is 50 × 50 × 55mm, and the sliver discharging speed is 330 m/min.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the mixture of the long stapled cotton and the fine stapled cotton to prepare the cotton fiber, and pretreats the cotton fiber, so that the nano particles are increased, and the strength and the wear resistance of the cotton fiber are improved.
2. The invention adopts modified cotton fiber and adds polylactic acid fiber and copper ammonia fiber for blended spinning, the polylactic acid fiber and the copper ammonia fiber are environment-friendly fibers and are biodegradable, and the prepared yarn has the softness of the cotton fiber, the strength of the polylactic acid fiber and the heat resistance of the copper ammonia fiber.
3. The low-viscosity PU emulsion is sprayed on the yarn after spinning, so that the prepared yarn not only keeps the flexibility of the yarn, but also has the advantages of improving the smoothness and the wear resistance of the yarn.
Detailed Description
The present invention is further described in detail with reference to specific examples, so that those skilled in the art can implement the invention with reference to the description.
Example 1
The wear-resistant and heat-resistant blended yarn in the embodiment comprises the following components in parts by weight:
30 parts of polylactic acid fiber;
25 parts of copper ammonia fiber;
45 parts of cotton fibers.
Wherein the cotton fiber is formed by uniformly mixing long stapled cotton and fine stapled cotton in a mass ratio of 1: 3.
The preparation process of the wear-resistant and heat-resistant blended yarn in the embodiment comprises the following steps:
1) pretreatment: premixing long stapled cotton and fine stapled cotton for several times, mixing, soaking in 5% ethanol urea aqueous solution for 1.5 hr, taking out, and spraying modified nanometer SiO under high pressure2Standing for 12h to obtain cotton fiber, wherein the modified nano SiO2The amount of (b) is 20% of the amount of cotton fibers; is prepared from SiO with the mass ratio of 1:0.032Mixing with sodium dodecylbenzenesulfonate.
2) Adopting the principle of multiple times, a small amount of light beating and less beating to carry out the blowing-carding process, weighing the polylactic acid fiber with the specification of 1.48dtex × 38mm and the dry breaking strength of 40.2cN/dtex, the copper ammonia fiber with the specification of 0.98dtex × 38mm and the dry breaking strength of 145.3cN/dtex, the cotton fiber with the specification of 1.5dtex × 38mm and the impurity content of 1.8 percent according to the proportion, setting the blowing-carding process parameters to obtain the sliver, wherein the spacing between the cylinder and the cover plate is 011. the cylinder speed is set to be 1050 prm;
3) drawing, namely drawing the raw slivers in a three-pass combination mode, wherein drawing parameters comprise that the head part is fed with seven raw slivers, and the second part and the last part are fed with six raw slivers, the back zone draft multiple is 1.4-1.5, the roller gauge is 50 × 50 × 55, and the sliver discharging speed is 330m/min, so that cooked slivers are obtained;
4) spinning: spinning the cooked sliver by adopting a sirofil spinning technology to obtain yarn;
5) spraying: carrying out high-pressure atomization spraying on the yarns to obtain a PU solution with the solid content of 23.3% and the viscosity of 25.7 mPa.s; and obtaining the blended yarn.
Example 2
The preparation method of this example is the same as example 1, except that the wear-resistant and heat-resistant blended yarn of this example comprises the following components in parts by weight:
25 parts of polylactic acid fiber;
20 parts of copper ammonia fiber;
55 parts of cotton fibers.
Wherein the cotton fiber is formed by uniformly mixing long stapled cotton and fine stapled cotton in a mass ratio of 1: 3.
Example 3
The preparation method of this example is the same as example 1, except that the wear-resistant and heat-resistant blended yarn of this example comprises the following components in parts by weight:
25 parts of polylactic acid fiber;
20 parts of copper ammonia fiber;
55 parts of cotton fibers.
Wherein the cotton fiber is formed by uniformly mixing long stapled cotton and fine stapled cotton in a mass ratio of 1: 2.
Example 4
The preparation method of this example is the same as example 1, except that the wear-resistant and heat-resistant blended yarn of this example comprises the following components in parts by weight:
35 parts of polylactic acid fiber;
30 parts of copper ammonia fiber;
and 35 parts of cotton fibers.
Wherein the cotton fiber is formed by uniformly mixing long stapled cotton and fine stapled cotton in a mass ratio of 1: 3.
The blended yarn obtained in example 1 was subjected to the following tests
1) Testing the tensile property of the yarn: the tensile property of the yarn is measured according to a test method for measuring the tensile property of the yarn by a standard ASTM D2256-2002 single-line method, the blended yarn is subjected to tensile property test by using an Instron3369 type universal strength machine, the clamping distance is 250mm, the tensile speed is 300mm/min, and the number of samples is 10;
2) and (3) wear resistance test: the coefficient of friction between the yarns of ASTM D3108-2001 and the solid material and the coefficient of friction between the yarns of ASTM D3412-2001 are used;
3) testing yarn evenness: the evenness of the spun yarn was measured using a MEl00 type evenness tester manufactured by Uster of Switzerland according to the method for testing the evenness of the yarn evenness of a textile yarn in GB/T3292-1997, i.e. the capacitance method, at a measuring speed of 55m/min for a measuring time of lmin.
Tests prove that the blended yarn prepared in the embodiment 1 has the tensile strength of 253.1MPa and the friction coefficient of below 0.14, so that the good wear resistance of the yarn after being woven into a fabric is effectively ensured, and the non-uniformity CV percent of the blended yarn is 2.3 percent.
The present invention has been described in connection with the embodiments, and it is to be understood that the invention is not limited to the specific embodiments described above, and that various insubstantial modifications of the inventive concepts and solutions, or their direct application to other applications without modification, are intended to be covered by the scope of the invention. The protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. The wear-resistant and heat-resistant blended yarn is characterized by comprising the following components in parts by weight:
25-35 parts of polylactic acid fiber;
20-30 parts of copper ammonia fiber;
30-55 parts of cotton fibers;
the wear-resistant and heat-resistant blended yarn is prepared by the following steps:
1) pretreatment: premixing long stapled cotton and fine stapled cotton, mixing, and placing into 5% ethanol urea water solution
2 2Soaking for 1-1.5h, atomizing and spraying modified nano SiO powder, standing for 10-12h to obtain cotton fiber, wherein the modified nano SiO powder
The amount of the cotton fiber is 10-20% of the amount of the cotton fiber;
2) blowing-carding process: weighing polylactic acid fiber, copper ammonia fiber and cotton fiber in proportion, performing blowing-carding process twice,
obtaining raw strips;
3) drawing: drawing the raw slivers in a three-way combination mode to obtain cooked slivers;
4) spinning: spinning the cooked sliver by adopting a sirofil spinning technology to obtain yarn;
5) spraying: spraying PU solution with solid content of 23-25% and viscosity of 25.1-26.5mPa.s onto the yarn; get mixed
And spinning the yarns.
2. The abrasion-resistant and heat-resistant blended yarn according to claim 1, which is composed of the following components in parts by weight:
30 parts of polylactic acid fiber;
25 parts of copper ammonia fiber;
45 parts of cotton fibers.
3. The wear-resistant and heat-resistant blended yarn according to claim 1, wherein the polylactic acid fiber has a specification of 1.43-1.54dtex × mm and a dry breaking strength of 40.2cN/dtex, the copper ammonia fiber has a specification of 0.9-1.1dtex × mm, a dry breaking strength of 145.3cN/dtex and a moisture regain of 12-12.5%, and the cotton fiber has a specification of 1.41-1.53dtex × mm and a impurity content of 1.8%.
4. The abrasion resistant, heat resistant blended yarn according to claim 1,the modified nano SiO2Is prepared from SiO with the mass ratio of 1:0.032Mixing with sodium dodecylbenzenesulfonate.
5. The abrasion-resistant, heat-resistant blended yarn according to claim 1, wherein the blowing-carding process conditions are cylinder and cover plate pitches of 0.11mm, 0.12mm and 0.13mm, the taker-in speed is set to 1050 rpm, the cylinder speed is set to 510 rpm, the fixed cover plates are six, the movable cover plate speed is set to 170 rpm, and the doffer speed is set to 850 rpm.
6. The abrasion-resistant and heat-resistant blended yarn according to claim 1, wherein the drawing process parameters comprise that the head is fed by seven raw slivers, the second head and the last head are fed by six raw slivers, the draft multiple of the back zone is 1.3-1.5, the roller gauge is 50 × 50 × 55mm, and the drawing speed is 330 m/min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108385229A (en) * | 2018-03-02 | 2018-08-10 | 建湖县银海棉业有限公司 | A kind of wear-resisting heat resistanceheat resistant scribbled |
| CN108221110A (en) * | 2018-03-02 | 2018-06-29 | 建湖县银海棉业有限公司 | A kind of heat-insulation breathable scribbled |
| CN109652882A (en) * | 2018-12-19 | 2019-04-19 | 湖北中天科技有限公司 | A kind of wear-resisting anti pilling scribbled and preparation method thereof |
| CN114645349A (en) * | 2020-12-21 | 2022-06-21 | 上海纺织（集团）大丰纺织有限公司 | Copper ammonia fiber yarn and manufacturing process thereof |
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| BE420351A (en) * | 1936-03-03 | |||
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| WO2011101857A2 (en) * | 2010-02-19 | 2011-08-25 | Khandelwal, Sanjeev | Multifunctional textile |
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| CN104264323A (en) * | 2014-09-03 | 2015-01-07 | 苏州印丝特纺织数码科技有限公司 | Method for manufacturing environment-friendly silk shell fabric |
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Denomination of invention: A wear-resistant and heat-resistant blended yarn Effective date of registration: 20220823 Granted publication date: 20200714 Pledgee: Fuyang City Yingzhou financing Company limited by guarantee Pledgor: FUYANG HENGTAI TEXTILE Co.,Ltd. Registration number: Y2022980013347 |