阅读说明：本技术 一种利用高支高密织物废料生产可纺纤维的工艺 (Process for producing spinnable fiber by using high-count high-density fabric waste ) 是由 熊荣洪 熊文杰 于 2019-12-03 设计创作，主要内容包括：本发明属于纺织技术领域,具体涉及一种利用高支高密织物下脚料生产可纺纤维的工艺。包括以下步骤,切断,初步开松,将溶胀剂加入水中成为溶胀溶液,将其均匀喷洒至经过初步开松步骤后的小块布料上,使用塑料薄膜覆盖经过溶胀湿润处理后的小块布料,并静置,将经过溶胀湿润静置步骤处理过后的小块布料与其他经过切断、初步开松、溶胀湿润静置步骤处理过后的回丝或者易开松的粗厚织物边角料均匀混合形成混合物,将经过均匀混合步骤后形成的所述混合物进行开松、清弹形成再生纤维,对再生纤维进行精梳,加工成可纺纤维。相较于现有技术,本工艺能使高支高密纺织废料更容易开松出来,获得的有效纤维多而且稳定、均匀,成品率高。(The invention belongs to the technical field of spinning, and particularly relates to a process for producing spinnable fibers by utilizing high-count and high-density fabric leftovers. The method comprises the following steps of cutting, primarily opening, adding a swelling agent into water to form a swelling solution, uniformly spraying the swelling solution on small cloth subjected to the primarily opening step, covering the small cloth subjected to swelling and wetting treatment with a plastic film, standing, uniformly mixing the small cloth subjected to swelling, wetting and standing with other waste silk or easily opened thick fabric leftover materials subjected to cutting, primarily opening and swelling and wetting and standing to form a mixture, opening and cleaning the mixture formed in the uniformly mixing step to form regenerated fibers, combing the regenerated fibers, and processing the regenerated fibers into spinnable fibers. Compared with the prior art, the process can enable high-count and high-density textile waste to be more easily opened, and the obtained effective fibers are more, stable and uniform, and the yield is high.)

1. A process for producing spinnable fibers by using high-count and high-density textile waste is characterized by comprising the following steps:

cutting: cutting off the sorted waste materials to enable the waste materials to become small cloth;

preliminary opening: primarily opening the small cloth after the cutting step;

swelling, wetting and standing: adding a swelling agent into water to form a swelling solution, uniformly spraying the swelling solution on the small cloth subjected to the preliminary opening step, covering the small cloth subjected to swelling and wetting treatment with a plastic film, and standing;

and (3) uniformly mixing: uniformly mixing the small cloth processed by the swelling, wetting and standing step with other waste silk or easily-loosened thick fabric leftover materials processed by the cutting, preliminary loosening and swelling, wetting and standing steps to form a mixture;

opening and cleaning again: opening and cleaning the mixture formed after the step of uniformly mixing to form regenerated fibers;

fine carding: combing the regenerated fiber after the steps of opening and cleaning again, and processing into spinnable fiber.

2. The process for producing spinnable fiber by using high count and high density fabric waste as claimed in claim 1, wherein: the length and the width of the small cloth are respectively 20-30 cm.

3. The process for producing spinnable fiber by using high count and high density fabric waste as claimed in claim 1, wherein: the solid content of the swelling agent was 25%.

4. A process for producing spinnable fibers from high count and high density textile waste according to claim 3, wherein: the swelling agent is formed by compounding an anionic surfactant and a nonionic surfactant according to the weight ratio of 1:1, the anionic surfactant is sodium di-sec-octyl maleate sulfonate, and the nonionic surfactant is fatty alcohol-polyoxyethylene ether.

5. A process for producing spinnable fibers from high count and high density textile waste according to claim 3, wherein: the concentration of the swelling solution is 0.05% -0.1%.

6. The process for producing spinnable fiber by using high count and high density fabric waste as claimed in claim 1, wherein: and in the swelling, wetting and standing step, the standing time is 20-24 hours.

7. The process for producing spinnable fiber by using high count and high density fabric waste as claimed in claim 1, wherein: in the uniform mixing step, the small cloth and the waste silk or the leftover materials of the thick fabric are 60-90% by weight: 10% -40% of the mixture.

8. The process for producing spinnable fiber by using high count and high density fabric waste as claimed in claim 1, wherein: cutting the waste into small cloth with the length and the width of 20cm respectively, preliminarily opening the small cloth after the cutting step, uniformly spraying a swelling solution with the concentration of 0.1% onto the small cloth after the preliminary opening step, covering the small cloth after swelling and wetting treatment with a plastic film, standing for 20 hours, and mixing the small cloth after swelling, wetting and standing with the cut-off, preliminary opening and swelling, wetting and standing to obtain the small cloth with the weight percentage of 90%: 10 percent of the mixture is mixed to form a mixture, the mixture is opened and flicked again to form regenerated fibers, and the regenerated fibers are finely carded to be processed into spinnable fibers.

9. The process for producing spinnable fiber by using high count and high density fabric waste as claimed in claim 1, wherein: cutting the waste into small cloth with the length and the width of 20cm respectively, preliminarily opening the small cloth after the cutting step, uniformly spraying a swelling solution with the concentration of 0.06% onto the small cloth after the preliminary opening step, covering the small cloth after swelling and wetting treatment with a plastic film, standing for 23 hours, and mixing the small cloth after swelling, wetting and standing with the cut-off, preliminary opening and swelling, wetting and standing to obtain the small cloth with the weight percentage of 60%: mixing 40% to form a mixture, opening and cleaning the mixture again to form regenerated fibers, and finely carding the regenerated fibers to form spinnable fibers.

10. The process for producing spinnable fiber by using high count and high density fabric waste as claimed in claim 1, wherein: cutting the waste into small cloth with the length and the width of 30cm respectively, preliminarily opening the small cloth after the cutting step, uniformly spraying a swelling solution with the concentration of 0.08% onto the small cloth after the preliminary opening step, covering the small cloth after swelling and wetting treatment with a plastic film, standing for 22 hours, and putting the small cloth after swelling, wetting and standing and the cut back silk after cutting, preliminary opening and swelling, wetting and standing by 70% in percentage by weight: mixing 30% to form a mixture, opening and cleaning the mixture again to form regenerated fibers, and finely carding the regenerated fibers to form spinnable fibers.

Technical Field

The invention belongs to the technical field of spinning, and particularly relates to a process for producing spinnable fibers by utilizing high-count and high-density fabric leftovers.

Background

The high-count and high-density fabric is a high-quality textile, and a large amount of leftovers and wastes are generated in the processes of printing, clothing, finishing, using and consuming.

The leftovers and wastes of the high-count and high-density fabrics have great recycling value. If not utilized, it will cause huge waste. But recycling if extensive type simple treatment is performed also causes huge waste. (hereinafter, we will collectively refer to these leftovers and wastes as high-count high-density textile wastes)

Disclosure of Invention

In view of the above, the present invention aims to overcome the defects of the prior art, and provide a process for recycling high-count and high-density textile waste into excellent high-quality spinnable fibers, so as to achieve an ideal recycling effect and make the high-count and high-density textile waste into spinnable fibers with high added value.

A process for producing spinnable fibers by using high-count and high-density fabric waste comprises the following steps:

cutting: cutting off the sorted waste materials to enable the waste materials to become small cloth;

preliminary opening: primarily opening the small cloth after the cutting step;

swelling, wetting and standing: adding a swelling agent into water to form a swelling solution, uniformly spraying the swelling solution on the small cloth subjected to the preliminary opening step, covering the small cloth subjected to swelling and wetting treatment with a plastic film, and standing;

and (3) uniformly mixing: uniformly mixing the small cloth processed by the swelling, wetting and standing step with other waste silk or easily-loosened thick fabric leftover materials processed by the cutting, preliminary loosening and swelling, wetting and standing steps to form a mixture;

opening and cleaning again: opening and cleaning the mixture formed after the step of uniformly mixing to form regenerated fibers;

fine carding: combing the regenerated fiber after the steps of opening and cleaning again, and processing into spinnable fiber.

Preferably, the length and the width of the small cloth are 20-30cm respectively.

Preferably, the solid content of the swelling agent is 25%.

Preferably, the swelling agent is prepared by compounding sodium di-sec-octyl maleate sulfonate and fatty alcohol-polyoxyethylene ether according to the weight ratio of 1: 1.

Preferably, the concentration of the swelling solution is 0.05% -0.1%.

Preferably, the standing time in the swelling, wetting and standing step is 20-24 hours.

Preferably, in the step of uniformly mixing, the small cloth and the waste silk or the leftover materials of the thick and thick fabric are 60-90% by weight: 10% -40% of the mixture.

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

1. the method of the invention can make the high-count and high-density textile waste into a spinnable fiber, which not only can make good use of the textile waste and make the textile waste have higher added value, but also has very high social and economic benefits, and is beneficial to environmental protection;

2. after swelling and wetting, the high-count and high-density textile waste can be more easily loosened, and the obtained effective fibers are more, stable and uniform;

3. the fibers after swelling and wetting are mixed with the waste silk after primary treatment or leftover materials of the thick fabric easy to loosen, so that the opening difficulty is reduced, the opening effect is better, and the product quality is ensured to a certain extent;

4. the spinnable fiber prepared by the process has high recovery rate, can be processed into excellent products with high added value after being recovered, and the rate of finished products is greatly improved;

5. compared with the nonionic surfactant used in the prior art, the swelling agent provided by the invention is added with the anionic surfactant, so that the fiber has affinity, and the swelling agent has the characteristics of two surfactants, so that the swelling agent has good synergistic benefits, can achieve the effects of uniform wetting and full swelling, and also has the synergistic effects of permeation, emulsification, diffusion and the like.

Detailed Description

The basic process flow of the embodiment of the invention comprises the following steps: selecting sorted raw materials → cutting → preliminary opening → swelling and wetting and standing → uniform mixing → opening again, cleaning bullet → fine carding → becoming high quality spinnable fiber.

The invention firstly carries out manual classification and selection on the collected high-count and high-density textile waste, cuts the selected large or long waste into small pieces of cloth with the length and the width of 20-30cm respectively, can cut the cloth by a fiber cutting machine, the small cloth after the cutting step is primarily opened by a brad-type nail plate opener (the opening is the process of breaking large fiber clusters and blocks into small blocks and small bundles, which is a technology well known by a person skilled in the art), a swelling solution with the concentration of 0.05-0.1% is uniformly sprayed on the small cloth after the primary opening step, wherein the swelling solution is formed by adding a swelling agent into water and uniformly stirring, the solid content of the swelling agent is 25% (the solid content refers to the total mass of solids in the slurry divided by the mass of all components forming the slurry, and the solid content is a parameter reflecting the viscosity of the slurry actually). The swelling agent used in the invention is mainly compounded by anionic surfactant and nonionic surfactant according to the weight ratio of 1:1, the anionic surfactant is selected from sodium di-sec-octyl maleate sulfonate, the textile printing and dyeing industry is commonly called as 'quick penetrant T', the swelling agent has the characteristics of quick and uniform penetration, good wettability and the like, and can also be used as an emulsifier and a detergent; the nonionic surfactant is fatty alcohol-polyoxyethylene ether, is commonly called as a penetrating agent JFC in the textile printing and dyeing industry, and has certain permeability and wettability. Covering the small cloth subjected to swelling and wetting treatment with a plastic film, standing for 20-24 hours, and cutting, primarily opening, swelling and wetting the small cloth subjected to swelling and wetting standing and the cut back yarn subjected to cutting, primarily opening and swelling and wetting standing, wherein the weight percentage of the cut back yarn is 60% -90%: 10 to 40 percent of the mixture is mixed to form a mixture, the mixture is opened and flicked again to form regenerated fibers, and the regenerated fibers are finely carded to be processed into spinnable fibers. Fine carding is a technique well known to those skilled in the art, without being inventive, and therefore will not be described in detail here.

The present invention will be further described in detail with reference to the following specific examples, which are carried out on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the present invention is not limited to the following examples.