阅读说明：本技术 一种棉、麻、莫代尔的混纺工艺 (Cotton, hemp and modal blending process ) 是由 叶玉玲 于 2019-11-07 设计创作，主要内容包括：本发明公开了一种棉、麻、莫代尔的混纺工艺,包括步骤S1：测出棉纤维丝、麻纤维丝和莫代尔纤维丝可拉伸的最大限度；步骤S2：将步骤S1中处理后的棉纤维丝、麻纤维丝以及涤纶纤维丝进行风干；然后输送至振动棉箱内；步骤S3：将步骤S2中得到的混纺棉卷,在90～110℃下与N-甲基氧化吗啉混合溶解；步骤S4：将步骤S3中得到的所述混纺丝在梳棉机的给棉板上均匀铺放,在所述混纺丝的表面均匀涂覆一层乳化剂；步骤S5：将步骤S4中得到的混纺丝喂入梳棉机中经过刺辊、锡林盖板和道夫工序,最终得到混纺棉条。其能够使得加捻出来的细纱均匀性好,质量高；最终制成的棉、麻、莫代尔的混纺织物结构更加轻薄透气,提高生产效益和经济效益。(The invention discloses a cotton, hemp and modal blending process, which comprises the following steps of S1: the stretchable maximum limit of the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns is measured; step S2: air-drying the cotton fiber yarns, the hemp fiber yarns and the polyester fiber yarns processed in the step S1; then conveying the cotton seeds into a vibration cotton box; step S3: mixing and dissolving the blended cotton roll obtained in the step S2 with N-methylmorpholine oxide at 90-110 ℃; step S4: uniformly laying the mixed spinning yarn obtained in the step S3 on a feeding plate of a carding machine, and uniformly coating a layer of emulsifier on the surface of the mixed spinning yarn; step S5: and (5) feeding the blended spinning yarn obtained in the step (S4) into a carding machine, and performing licker-in, cylinder cover plate and doffer processes to finally obtain the blended cotton sliver. The spun yarn twisted by the twisting machine has good uniformity and high quality; the finally prepared blended fabric of cotton, hemp and modal is lighter, thinner and more breathable, and the production benefit and the economic benefit are improved.)

1. A blending process of cotton, hemp and modal is characterized by comprising the following steps:

step S1: the method comprises the following steps of measuring the stretchable maximum limit of cotton fiber yarns, hemp fiber yarns and modal fiber yarns, placing the cotton fiber yarns, the hemp fiber yarns and the polyester fiber yarns in a water tank, cooking for 80-100 minutes, standing, cooling to room temperature, and taking out;

step S2: air-drying the cotton fiber yarns, the hemp fiber yarns and the polyester fiber yarns processed in the step S1; then conveying the cotton fiber yarns, the hemp fiber yarns and the polyester fiber yarns into a vibration cotton box to be loosened and mixed to obtain uniform blended cotton rolls;

step S3: mixing and dissolving the blended cotton roll obtained in the step S2 with N-methylmorpholine oxide at 90-110 ℃, and stirring for 10-30 min to finally obtain a mixed spinning stock solution; then, reducing the pressure to remove excessive water, adding the water into a screw extruder, and shearing and dissolving to obtain mixed spinning yarns with proper length;

step S4: uniformly laying the mixed spinning yarn obtained in the step S3 on a feeding plate of a carding machine, uniformly coating a layer of emulsifier on the surface of the mixed spinning yarn, changing the dosage of the emulsifier, respectively taking 2%, 5% and 8% for experiment, and determining the final additive amount of the emulsifier; standing the mixed spinning yarn for 24 hours, and performing infiltration treatment;

step S5: feeding the blended yarns obtained in the step S4 into a carding machine, and performing licker-in, cylinder cover plate and doffer processes to finally obtain blended cotton slivers; and (3) sequentially processing the blended cotton sliver by a combing machine and a drawing frame to finally form spun yarn and winding the spun yarn on a special bobbin.

2. The process for blending cotton, hemp and modal according to claim 1, wherein the method for determining the maximum stretchable extent of the cotton, hemp and modal filaments in step S1 is: the method comprises the steps of sequentially placing cotton fiber yarns, hemp fiber yarns and modal fiber yarns into an upper clamp and a lower clamp of a tensile testing machine with an induction element load range of 0-2000N and an accuracy rate of +/-2%, and continuously applying force to the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns at a constant speed through the tensile testing machine, so that the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns are torn along the width direction, and maximum tensile values required for tearing the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns are obtained respectively, namely the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns can be stretched to the maximum.

3. The blending process of cotton, hemp and modal as claimed in claim 2, wherein the adding manner of the mixed solution of N-methylmorpholine oxide in step S1 is: and (2) mutually dissolving the blended cotton roll and the cosolvent, emulsifying and dispersing, adding N-methylmorpholine oxide after emulsifying and dispersing, stirring while adding, and observing the condition of the formed dissolved solution, wherein the ambient temperature during stirring is 60-80 ℃.

4. A process for blending cotton, hemp and modal as defined in claim 3, wherein the time for mutual dissolution of the blended lap and the cosolvent in step S1 is 1.5-4 h, the temperature for emulsification and dispersion of the blended lap and the cosolvent is controlled at 110-1300 ℃, the time for emulsification and dispersion is 35-45 min, and the speed is 333-545 square meters per hour.

5. The cotton, hemp and modal blending process according to claim 4, wherein the emulsifier in step S4 comprises 8 to 12 parts by weight of sodium hydroxide, 3 to 7 parts by weight of xylenol, 2.5 to 4.5 parts by weight of sorbitan, 0.5 to 1.1 parts by weight of sodium alginate, 0.5 to 2.5 parts by weight of sunset red, 4 to 12 parts by weight of defoamer and 64 parts by weight of water.

6. The cotton, hemp, and modal blend process of claim 5, wherein said defoamer comprises: glyceryl monostearate, rice bran oil, light calcium carbonate and polyether compounds.

7. The cotton, linen and modal blending process according to claim 6, wherein the spun yarn in step S5 needs to be shaped and air-dried, the shaping temperature is 60-80 ℃, and the air-drying time is 65-80S.

Technical Field

The invention relates to a blending process, in particular to a blending process of cotton, hemp and modal.

Background

The blended spinning of cotton, hemp and modal is a blended chemical fiber fabric, which is a textile product spun by mixing chemical fiber with other natural fibers such as cotton, modal, hemp and the like, and has the advantages of both polyester style and cotton fabric.

At present, in a textile process for blending cotton, hemp and modal which is common in the market, the cotton, the hemp and the modal are only simply mixed and then put into a carding machine for slivering operation, so that the cotton sliver which is formed by carding and mixing is too thick and heavy in texture, poor in air permeability and low in quality of spun yarn which is finally twisted.

Therefore, a new blending process of cotton, hemp and modal needs to be developed, so that spun yarn twisted by the spinning machine has good uniformity and high quality; the finally prepared blended fabric of cotton, hemp and modal is lighter, thinner and more breathable.

Disclosure of Invention

The invention aims to provide a cotton, hemp and modal blending process, which can realize different colors under the irradiation of light, intelligently adjust the temperature and improve the production benefit and the economic benefit.

In order to solve the technical problem, the invention provides a cotton, hemp and modal blending process, which comprises the following steps of S1: the method comprises the following steps of measuring the stretchable maximum limit of cotton fiber yarns, hemp fiber yarns and modal fiber yarns, placing the cotton fiber yarns, the hemp fiber yarns and the polyester fiber yarns in a water tank, cooking for 80-100 minutes, standing, cooling to room temperature, and taking out; step S2: air-drying the cotton fiber yarns, the hemp fiber yarns and the polyester fiber yarns processed in the step S1; then conveying the cotton fiber yarns, the hemp fiber yarns and the polyester fiber yarns into a vibration cotton box to be loosened and mixed to obtain uniform blended cotton rolls; step S3: mixing and dissolving the blended cotton roll obtained in the step S2 with N-methylmorpholine oxide at 90-110 ℃, and stirring for 10-30 min to finally obtain a mixed spinning stock solution; then, reducing the pressure to remove excessive water, adding the water into a screw extruder, and shearing and dissolving to obtain mixed spinning yarns with proper length; step S4: uniformly laying the mixed spinning yarn obtained in the step S3 on a feeding plate of a carding machine, uniformly coating a layer of emulsifier on the surface of the mixed spinning yarn, changing the dosage of the emulsifier, respectively taking 2%, 5% and 8% for experiment, and determining the final additive amount of the emulsifier; standing the mixed spinning yarn for 24 hours, and performing infiltration treatment; step S5: feeding the blended yarns obtained in the step S4 into a carding machine, and performing licker-in, cylinder cover plate and doffer processes to finally obtain blended cotton slivers; and (3) sequentially processing the blended cotton sliver by a combing machine and a drawing frame to finally form spun yarn and winding the spun yarn on a special bobbin.

Preferably, the method for determining the maximum stretchable limit of the cotton, hemp and modal filaments in step S1 is: the method comprises the steps of sequentially placing cotton fiber yarns, hemp fiber yarns and modal fiber yarns into an upper clamp and a lower clamp of a tensile testing machine with an induction element load range of 0-2000N and an accuracy rate of +/-2%, and continuously applying force to the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns at a constant speed through the tensile testing machine, so that the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns are torn along the width direction, and maximum tensile values required for tearing the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns are obtained respectively, namely the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns can be stretched to the maximum.

Preferably, the adding manner of the mixed solution of N-methylmorpholine oxide in step S1 is as follows: and (2) mutually dissolving the blended cotton roll and the cosolvent, emulsifying and dispersing, adding N-methylmorpholine oxide after emulsifying and dispersing, stirring while adding, and observing the condition of the formed dissolved solution, wherein the ambient temperature during stirring is 60-80 ℃.

Preferably, in the step S1, the mutual dissolution time of the blended cotton rolls and the cosolvent is 1.5-4 h, the temperature for emulsification and dispersion of the blended cotton rolls and the cosolvent is controlled at 110-1300 ℃, the emulsification and dispersion time is 35-45 min, and the speed is 333-545 square meters per hour.

Preferably, in the step S4, the emulsifier comprises, by weight, 8-12 parts of sodium hydroxide, 3-7 parts of xylenol, 2.5-4.5 parts of sorbitan, 0.5-1.1 parts of sodium alginate, 0.5-2.5 parts of sunset red, 4-12 parts of an antifoaming agent and 64 parts of water.

Preferably, the defoaming agent comprises: glyceryl monostearate, rice bran oil, light calcium carbonate and polyether compounds.

Preferably, the spun yarn in step S5 is subjected to shaping air-drying at a shaping temperature of 60 to 80 ℃ for 65 to 80 seconds.

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

1. in the blending process of cotton, hemp and modal, the cotton fiber yarns, the hemp fiber yarns and the modal fiber yarns are measured to be stretchable to the maximum extent, and are steamed, opened and mixed. The blended cotton rolls are more uniform, the spun yarns finally twisted are good in uniformity and high in quality

2. In the blending process of cotton, hemp and modal, the surface of the blended yarn is uniformly coated with a layer of emulsifier, so that the final blended yarn can be prevented from being more stable in property; and the treatment process is simple.

3. The invention improves the preparation method, and solves the problems that the traditional cotton, hemp and modal blending process has poor air permeability, the spun yarn finally twisted is low in quality and the like.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.