阅读说明：本技术 一种高强度高弹性纱线及其制备方法 (High-strength high-elasticity yarn and preparation method thereof ) 是由 周生国 曹良波 薛银锋 于 2021-09-13 设计创作，主要内容包括：本发明公开了一种高强度高弹性纱线及其制备方法,包括以下步骤,步骤一,切片清洗；步骤二,熔融挤出；步骤三,牵伸绕丝；步骤四,原料称取；步骤五,梳棉并条；步骤六,粗纱加捻；步骤七,细纱绕管；步骤八,络筒绕卷；步骤九,浸泡处理；步骤十,包装入库,本发明利用废弃饮料瓶作为原料来生产涤纶纤维,实现了废物利用,有利于环保,通过在纱线中加入了氨纶纤维,氨纶纤维本身具有良好弹性,从而增强了纱线的弹性,并且增强了纱线回弹后的稳定性,不易产生不可逆的形变,通过在纱线中加入涤纶纤维,并且利用水溶性氧化聚乙烯蜡非离子乳液对纱线进行浸泡,干涸后乳液进入纱线内部,大大增加了纱线的强度。(The invention discloses a high-strength high-elasticity yarn and a preparation method thereof, and the preparation method comprises the following steps of firstly, slicing and cleaning; step two, melt extrusion; step three, drafting and winding; step four, weighing raw materials; step five, carding and drawing; step six, twisting the rough yarn; step seven, winding the spun yarn; step eight, winding the bobbin; step nine, soaking treatment; step ten, packaging and warehousing, wherein waste beverage bottles are used as raw materials to produce polyester fibers, waste utilization is achieved, environmental protection is facilitated, spandex fibers are added into yarns, the spandex fibers have good elasticity, the elasticity of the yarns is enhanced, the stability of the yarns after rebounding is enhanced, irreversible deformation is not prone to occurring, the polyester fibers are added into the yarns, the yarns are soaked by water-soluble oxidized polyethylene wax nonionic emulsion, and the emulsion enters the yarns after drying, so that the strength of the yarns is greatly increased.)

1. A high-strength high-elasticity yarn comprises the following components in percentage by weight: dacron fibre, spandex fibre and cotton fiber, its characterized in that: the weight parts of the components are respectively as follows: 5-10 parts of polyester fiber, 4-8 parts of spandex fiber and 90-105 parts of cotton fiber.

2. A high strength high elastic yarn according to claim 1, wherein: the cotton fiber is made of Xinjiang cotton which is free of plant diseases and insect pests, white and full.

3. A preparation method of high-strength high-elasticity yarn comprises the following steps of firstly, slicing and cleaning; step two, melt extrusion; step three, drafting and winding; step four, weighing raw materials; step five, carding and drawing; step six, twisting the rough yarn; step seven, winding the spun yarn; step eight, winding the bobbin; step nine, soaking treatment; step ten, packaging and warehousing; the method is characterized in that:

in the first step, collecting the waste plastic beverage bottles, taking down the labels and the bottle caps, immediately cutting the beverage bottles into blocks with uniform sizes, then putting the blocks into clean water for cleaning and soaking, and airing for later use;

in the second step, the beverage bottle flakes cleaned and dried in the first step are put into a double-screw melt extruder to be heated and dissolved, and then are put into a spinning box body to be uniformly fed into a spinning assembly provided with a filter screen, impurities are filtered by the filter screen, and then the filtered beverage bottle flakes are sprayed out from a spinneret plate to form nascent fibers, and the nascent fibers are shaped by annular cold air for later use;

in the third step, the nascent fiber produced in the second step is subjected to oil immersion and then is drafted by a drafting machine, and then yarn folding, curling, cutting and loose shaping are carried out after the drafting is finished, so that the finished product polyester fiber is prepared for later use;

in the fourth step, 4-8 parts of spandex fiber and 90-105 parts of cotton fiber are weighed according to the parts by weight of the components, and then 5-10 parts of the finished polyester fiber prepared in the third step are selected;

in the fifth step, the spandex fiber, the cotton fiber and the polyester fiber selected in the fourth step are respectively put into a carding machine for carding to respectively prepare spandex fiber raw slivers, cotton fiber raw slivers and polyester fiber raw slivers for later use, then the raw slivers are respectively put into a drawing frame, and through multiple paths of merging and drafting, the fibers are fully mixed, the fiber straightening and parallelization are improved, and the spandex fiber drawn slivers, the cotton fiber drawn slivers and the polyester fiber drawn slivers are respectively prepared for later use;

and in the sixth step, the spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver which are prepared in the fifth step are sequentially loaded into a roving frame, the drawn sliver is respectively drawn, and the drawn spandex fiber drawn sliver, cotton fiber drawn sliver and polyester fiber drawn sliver are twisted into yarn semi-finished products for later use.

In the seventh step, the yarn semi-finished product prepared in the sixth step is put into a spinning machine for spinning, and is wound on a bobbin for standby after finishing spinning;

in the eighth step, harmful defects and impurities on the cop yarn finished by spinning in the seventh step are removed, the cop tubes are connected, and the cop tube is wound into a care standard cheese for later use;

in the ninth step, the cheese prepared in the eighth step is put into the water-soluble oxidized polyethylene wax non-ionic emulsion for soaking, and the cheese is taken out after being completely soaked and dried in the air to prepare a finished product of the high-strength high-elasticity yarn;

and step ten, packaging the high-strength high-elasticity yarn prepared in the step nine, and then delivering the packaged high-strength high-elasticity yarn into a warehouse for storage.

4. The method for preparing high-strength high-elasticity yarn according to claim 3, wherein the method comprises the following steps: in the first step, the waste plastic beverage bottles are transparent and colorless beverage bottles, the soaking time is 30-40min, and the airing time is 5-7 h.

5. The method for preparing high-strength high-elasticity yarn according to claim 3, wherein the method comprises the following steps: in the second step, the melting temperature is 290-300 ℃, and the cold air temperature is 20-30 ℃.

6. The method for preparing high-strength high-elasticity yarn according to claim 3, wherein the method comprises the following steps: in the third step, the oil agent for oil immersion consists of an antistatic agent, a dispersant and silicone oil.

7. The method for preparing high-strength high-elasticity yarn according to claim 3, wherein the method comprises the following steps: in the fifth step, the carding machine is one of a cover plate type carding machine and a roller type carding machine.

8. The method for preparing high-strength high-elasticity yarn according to claim 3, wherein the method comprises the following steps: in the sixth step, the draft multiple is 3.5-4.2 times.

9. The method for preparing high-strength high-elasticity yarn according to claim 3, wherein the method comprises the following steps: in the ninth step, the soaking time is 10-20min, and the air drying time is 8-10 h.

Technical Field

The invention relates to the technical field of yarn production, in particular to high-strength high-elasticity yarn and a preparation method thereof.

Background

The yarn is a textile, various textile fibers are processed into products with certain fineness, the products are used for weaving, rope making, thread making, knitting, embroidery and the like, the products are divided into staple fiber yarn, continuous filament yarn and the like, the types of the yarn are various, the types of the yarn are different, and the application range is very wide.

The intensity of the yarn on the market is relatively poor now, and section fracture and damaged condition very easily appear in the tensile process, greatly reduced the quality of yarn to current yarn elasticity is relatively poor, especially stretch the poor stability of yarn after kick-backing, appears irreversible deformation easily, has reduced the quality of product, is unfavorable for the later stage use of yarn, and the raw materials price of yarn is high in process of production, has increased the manufacturing cost of product.

Disclosure of Invention

The invention aims to provide a high-strength high-elasticity yarn and a preparation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a high-strength high-elasticity yarn comprises the following components in percentage by weight: the polyester fiber, the spandex fiber and the cotton fiber comprise the following components in parts by weight: 5-10 parts of polyester fiber, 4-8 parts of spandex fiber and 90-105 parts of cotton fiber.

Preferably, the cotton fiber is made of Xinjiang cotton which is free of plant diseases and insect pests, white and full.

A preparation method of high-strength high-elasticity yarn comprises the following steps of firstly, slicing and cleaning; step two, melt extrusion; step three, drafting and winding; step four, weighing raw materials; step five, carding and drawing; step six, twisting the rough yarn; step seven, winding the spun yarn; step eight, winding the bobbin; step nine, soaking treatment; step ten, packaging and warehousing;

in the first step, collecting the waste plastic beverage bottles, taking down the labels and the bottle caps, immediately cutting the beverage bottles into blocks with uniform sizes, then putting the blocks into clean water for cleaning and soaking, and airing for later use;

in the second step, the beverage bottle flakes cleaned and dried in the first step are put into a double-screw melt extruder to be heated and dissolved, and then are put into a spinning box body to be uniformly fed into a spinning assembly provided with a filter screen, impurities are filtered by the filter screen, and then the filtered beverage bottle flakes are sprayed out from a spinneret plate to form nascent fibers, and the nascent fibers are shaped by annular cold air for later use;

in the third step, the nascent fiber produced in the second step is subjected to oil immersion and then is drafted by a drafting machine, and then yarn folding, curling, cutting and loose shaping are carried out after the drafting is finished, so that the finished product polyester fiber is prepared for later use;

in the fourth step, 4-8 parts of spandex fiber and 90-105 parts of cotton fiber are weighed according to the parts by weight of the components, and then 5-10 parts of the finished polyester fiber prepared in the third step are selected;

in the fifth step, the spandex fiber, the cotton fiber and the polyester fiber selected in the fourth step are respectively put into a carding machine for carding to respectively prepare spandex fiber raw slivers, cotton fiber raw slivers and polyester fiber raw slivers for later use, then the raw slivers are respectively put into a drawing frame, and through multiple paths of merging and drafting, the fibers are fully mixed, the fiber straightening and parallelization are improved, and the spandex fiber drawn slivers, the cotton fiber drawn slivers and the polyester fiber drawn slivers are respectively prepared for later use;

and in the sixth step, the spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver which are prepared in the fifth step are sequentially loaded into a roving frame, the drawn sliver is respectively drawn, and the drawn spandex fiber drawn sliver, cotton fiber drawn sliver and polyester fiber drawn sliver are twisted into yarn semi-finished products for later use.

In the seventh step, the yarn semi-finished product prepared in the sixth step is put into a spinning machine for spinning, and is wound on a bobbin for standby after finishing spinning;

in the eighth step, harmful defects and impurities on the cop yarn finished by spinning in the seventh step are removed, the cop tubes are connected, and the cop tube is wound into a care standard cheese for later use;

in the ninth step, the cheese prepared in the eighth step is put into the water-soluble oxidized polyethylene wax non-ionic emulsion for soaking, and the cheese is taken out after being completely soaked and dried in the air to prepare a finished product of the high-strength high-elasticity yarn;

and step ten, packaging the high-strength high-elasticity yarn prepared in the step nine, and then delivering the packaged high-strength high-elasticity yarn into a warehouse for storage.

Preferably, in the step one, the waste plastic beverage bottle is a transparent colorless beverage bottle, the soaking time is 30-40min, and the airing time is 5-7 h.

Preferably, in the second step, the melting temperature is 290-300 ℃, and the cold air temperature is 20-30 ℃.

Preferably, in the third step, the oil agent for oil immersion consists of an antistatic agent, a dispersant and silicone oil.

Preferably, in the fifth step, the carding machine is one of a flat card and a roller card.

Preferably, in the sixth step, the draft ratio is 3.5-4.2.

Preferably, in the ninth step, the soaking time is 10-20min, and the air drying time is 8-10 h.

Compared with the prior art, the invention has the beneficial effects that:

1. the waste beverage bottles are used as raw materials to produce the polyester fibers, so that the waste utilization is realized, the environment is protected, the production cost is reduced, and the economic benefit of the product is improved;

2. according to the invention, the spandex fiber is added into the yarn, and the spandex fiber has good elasticity, so that the elasticity of the yarn is enhanced, the stability of the yarn after rebounding is enhanced, the irreversible deformation is not easy to generate, and the integral quality of the yarn is favorably improved;

3. according to the invention, the polyester fiber is added into the yarn, the water-soluble oxidized polyethylene wax nonionic emulsion is used for soaking the yarn, and the emulsion enters the yarn after drying, so that the strength of the yarn is greatly increased.

Drawings

FIG. 1 is a flow chart of the method of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a technical solution provided by the present invention:

example 1:

a high-strength high-elasticity yarn comprises the following components in percentage by weight: the polyester fiber, the spandex fiber and the cotton fiber comprise the following components in parts by weight: 5 parts of polyester fiber, 4 parts of spandex fiber and 90 parts of cotton fiber, wherein the cotton fiber is made of Xinjiang cotton which is free of plant diseases and insect pests and is pure white and full.

A preparation method of high-strength high-elasticity yarn comprises the following steps of firstly, slicing and cleaning; step two, melt extrusion; step three, drafting and winding; step four, weighing raw materials; step five, carding and drawing; step six, twisting the rough yarn; step seven, winding the spun yarn; step eight, winding the bobbin; step nine, soaking treatment; step ten, packaging and warehousing;

in the first step, collecting the waste plastic beverage bottles, taking down the labels and the bottle caps, immediately cutting the beverage bottles into blocks with uniform sizes, then putting the blocks into clear water for cleaning and soaking, wherein the waste plastic beverage bottles are transparent and colorless beverage bottles, the soaking time is 40min, and the waste plastic beverage bottles are dried for standby after completion, and the drying time is 6 h;

in the second step, the beverage bottle flakes cleaned and dried in the first step are put into a double-screw melt extruder to be heated and dissolved, the melting temperature is 300 ℃, the beverage bottle flakes are put into a spinning box body after being melted, the beverage bottle flakes are uniformly fed into a spinning assembly provided with a filter screen, impurities are filtered by the filter screen and then are sprayed out from a spinneret plate to form nascent fibers, the fibers are shaped by annular cold air for later use, and the temperature of the cold air is 25 ℃;

in the third step, the nascent fiber produced in the second step is subjected to oil immersion and then is drawn by a drawing machine, an oil solution for oil immersion consists of an antistatic agent, a dispersing agent and silicone oil, and yarn folding, curling, cutting, loosening and shaping are performed after the oil immersion is finished, so that a finished product polyester fiber is prepared for later use;

in the fourth step, 4 parts of spandex fiber and 90 parts of cotton fiber are weighed according to the parts by weight of the components, and then 5 parts of the finished polyester fiber prepared in the third step is selected;

in the fifth step, the spandex fiber, the cotton fiber and the polyester fiber selected in the fourth step are respectively put into a carding machine for carding, the carding machine is one of a cover plate type carding machine and a roller type carding machine, spandex fiber raw slivers, cotton fiber raw slivers and polyester fiber raw slivers are respectively prepared for standby, then the raw slivers are respectively put into a drawing frame, and through multiple paths of combination and drafting, the fibers are fully mixed, the fiber straightening and parallelism are improved, and spandex fiber drawn slivers, cotton fiber drawn slivers and polyester fiber drawn slivers are respectively prepared for standby;

and in the sixth step, the spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver prepared in the fifth step are sequentially loaded into a roving frame, the drawn slivers are respectively drawn with the drawing multiple of 4 times, and the drawn spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver are twisted into yarn semi-finished products for later use.

In the seventh step, the yarn semi-finished product prepared in the sixth step is put into a spinning machine for spinning, and is wound on a bobbin for standby after finishing spinning;

in the eighth step, harmful defects and impurities on the cop yarn finished by spinning in the seventh step are removed, the cop tubes are connected, and the cop tube is wound into a care standard cheese for later use;

in the ninth step, the cheese prepared in the eighth step is put into the water-soluble oxidized polyethylene wax non-ionic emulsion for soaking for 20min, and the cheese is taken out after being completely soaked and air-dried for 10h to prepare a finished product of the high-strength high-elasticity yarn;

and step ten, packaging the high-strength high-elasticity yarn prepared in the step nine, and then delivering the packaged high-strength high-elasticity yarn into a warehouse for storage.

Example 2:

a high-strength high-elasticity yarn comprises the following components in percentage by weight: the polyester fiber, the spandex fiber and the cotton fiber comprise the following components in parts by weight: 8 parts of polyester fiber, 5 parts of spandex fiber and 100 parts of cotton fiber, wherein the cotton fiber is made of Xinjiang cotton which is free of plant diseases and insect pests and is pure white and full.

A preparation method of high-strength high-elasticity yarn comprises the following steps of firstly, slicing and cleaning; step two, melt extrusion; step three, drafting and winding; step four, weighing raw materials; step five, carding and drawing; step six, twisting the rough yarn; step seven, winding the spun yarn; step eight, winding the bobbin; step nine, soaking treatment; step ten, packaging and warehousing;

in the first step, collecting the waste plastic beverage bottles, taking down the labels and the bottle caps, immediately cutting the beverage bottles into blocks with uniform sizes, then putting the blocks into clear water for cleaning and soaking, wherein the waste plastic beverage bottles are transparent and colorless beverage bottles, the soaking time is 40min, and the waste plastic beverage bottles are dried for standby after completion, and the drying time is 6 h;

in the second step, the beverage bottle flakes cleaned and dried in the first step are put into a double-screw melt extruder to be heated and dissolved, the melting temperature is 300 ℃, the beverage bottle flakes are put into a spinning box body after being melted, the beverage bottle flakes are uniformly fed into a spinning assembly provided with a filter screen, impurities are filtered by the filter screen and then are sprayed out from a spinneret plate to form nascent fibers, the fibers are shaped by annular cold air for later use, and the temperature of the cold air is 25 ℃;

in the third step, the nascent fiber produced in the second step is subjected to oil immersion and then is drawn by a drawing machine, an oil solution for oil immersion consists of an antistatic agent, a dispersing agent and silicone oil, and yarn folding, curling, cutting, loosening and shaping are performed after the oil immersion is finished, so that a finished product polyester fiber is prepared for later use;

in the fourth step, 5 parts of spandex fiber and 100 parts of cotton fiber are weighed according to the parts by weight of the components, and then 8 parts of the finished polyester fiber prepared in the third step is selected;

in the fifth step, the spandex fiber, the cotton fiber and the polyester fiber selected in the fourth step are respectively put into a carding machine for carding, the carding machine is one of a cover plate type carding machine and a roller type carding machine, spandex fiber raw slivers, cotton fiber raw slivers and polyester fiber raw slivers are respectively prepared for standby, then the raw slivers are respectively put into a drawing frame, and through multiple paths of combination and drafting, the fibers are fully mixed, the fiber straightening and parallelism are improved, and spandex fiber drawn slivers, cotton fiber drawn slivers and polyester fiber drawn slivers are respectively prepared for standby;

and in the sixth step, the spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver prepared in the fifth step are sequentially loaded into a roving frame, the drawn slivers are respectively drawn with the drawing multiple of 4 times, and the drawn spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver are twisted into yarn semi-finished products for later use.

In the seventh step, the yarn semi-finished product prepared in the sixth step is put into a spinning machine for spinning, and is wound on a bobbin for standby after finishing spinning;

in the eighth step, harmful defects and impurities on the cop yarn finished by spinning in the seventh step are removed, the cop tubes are connected, and the cop tube is wound into a care standard cheese for later use;

in the ninth step, the cheese prepared in the eighth step is put into the water-soluble oxidized polyethylene wax non-ionic emulsion for soaking for 20min, and the cheese is taken out after being completely soaked and air-dried for 10h to prepare a finished product of the high-strength high-elasticity yarn;

and step ten, packaging the high-strength high-elasticity yarn prepared in the step nine, and then delivering the packaged high-strength high-elasticity yarn into a warehouse for storage.

Example 3:

a high-strength high-elasticity yarn comprises the following components in percentage by weight: the polyester fiber, the spandex fiber and the cotton fiber comprise the following components in parts by weight: 10 parts of polyester fiber, 8 parts of spandex fiber and 105 parts of cotton fiber, wherein the cotton fiber is made of Xinjiang cotton which is free of plant diseases and insect pests and is pure white and full.

A preparation method of high-strength high-elasticity yarn comprises the following steps of firstly, slicing and cleaning; step two, melt extrusion; step three, drafting and winding; step four, weighing raw materials; step five, carding and drawing; step six, twisting the rough yarn; step seven, winding the spun yarn; step eight, winding the bobbin; step nine, soaking treatment; step ten, packaging and warehousing;

in the first step, collecting the waste plastic beverage bottles, taking down the labels and the bottle caps, immediately cutting the beverage bottles into blocks with uniform sizes, then putting the blocks into clear water for cleaning and soaking, wherein the waste plastic beverage bottles are transparent and colorless beverage bottles, the soaking time is 40min, and the waste plastic beverage bottles are dried for standby after completion, and the drying time is 6 h;

in the second step, the beverage bottle flakes cleaned and dried in the first step are put into a double-screw melt extruder to be heated and dissolved, the melting temperature is 300 ℃, the beverage bottle flakes are put into a spinning box body after being melted, the beverage bottle flakes are uniformly fed into a spinning assembly provided with a filter screen, impurities are filtered by the filter screen and then are sprayed out from a spinneret plate to form nascent fibers, the fibers are shaped by annular cold air for later use, and the temperature of the cold air is 25 ℃;

in the third step, the nascent fiber produced in the second step is subjected to oil immersion and then is drawn by a drawing machine, an oil solution for oil immersion consists of an antistatic agent, a dispersing agent and silicone oil, and yarn folding, curling, cutting, loosening and shaping are performed after the oil immersion is finished, so that a finished product polyester fiber is prepared for later use;

in the fourth step, 8 parts of spandex fiber and 105 parts of cotton fiber are weighed according to the parts by weight of the components, and then 10 parts of the finished polyester fiber prepared in the third step is selected;

in the fifth step, the spandex fiber, the cotton fiber and the polyester fiber selected in the fourth step are respectively put into a carding machine for carding, the carding machine is one of a cover plate type carding machine and a roller type carding machine, spandex fiber raw slivers, cotton fiber raw slivers and polyester fiber raw slivers are respectively prepared for standby, then the raw slivers are respectively put into a drawing frame, and through multiple paths of combination and drafting, the fibers are fully mixed, the fiber straightening and parallelism are improved, and spandex fiber drawn slivers, cotton fiber drawn slivers and polyester fiber drawn slivers are respectively prepared for standby;

and in the sixth step, the spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver prepared in the fifth step are sequentially loaded into a roving frame, the drawn slivers are respectively drawn with the drawing multiple of 4 times, and the drawn spandex fiber drawn sliver, the cotton fiber drawn sliver and the polyester fiber drawn sliver are twisted into yarn semi-finished products for later use.

In the seventh step, the yarn semi-finished product prepared in the sixth step is put into a spinning machine for spinning, and is wound on a bobbin for standby after finishing spinning;

in the eighth step, harmful defects and impurities on the cop yarn finished by spinning in the seventh step are removed, the cop tubes are connected, and the cop tube is wound into a care standard cheese for later use;

in the ninth step, the cheese prepared in the eighth step is put into the water-soluble oxidized polyethylene wax non-ionic emulsion for soaking for 20min, and the cheese is taken out after being completely soaked and air-dried for 10h to prepare a finished product of the high-strength high-elasticity yarn;

and step ten, packaging the high-strength high-elasticity yarn prepared in the step nine, and then delivering the packaged high-strength high-elasticity yarn into a warehouse for storage.

The properties of the examples are compared in the following table:

based on the above, the spandex fiber is added as the raw material during production, the spandex fiber has strong elasticity and resilience, the elasticity of the yarn is greatly improved by blending with the cotton fiber, the stability of the yarn after resilience is improved, the generation of irreversible deformation is reduced, waste beverage bottles are recycled as the raw material in the production process, the waste utilization is realized, the environment is facilitated, the production cost of the yarn is greatly reduced, the economic benefit is improved, the polyester fiber is added into the yarn for blending, the strength of the yarn is improved, and the finished yarn is soaked by the water-soluble oxidized polyethylene wax nonionic emulsion, so that the water-soluble oxidized polyethylene wax nonionic emulsion is soaked into the yarn, and the strength of the yarn is further improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.