阅读说明：本技术 一种黄花蒿纤维的制备方法 (Preparation method of artemisia annua fiber ) 是由 姜坤 曾凡军 于 2020-12-03 设计创作，主要内容包括：本发明提供了一种黄花蒿纤维的制备方法,所述制备方法包括以下步骤：(1)、黄花蒿提取物分散液的制备；(2)、活性染料溶液的制备；(3)、纤维的阳离子化；(4)、纤维预处理；(5)、纤维涂覆。制得的纤维中青蒿素含量高,制备得到的复合纤维具有良好的性能；生产周期短、灵活,可小批量多品种操作,减少备货压力；本发明的方法制备的纤维具有光泽亮丽柔和、吸放湿性良好,纤维柔软性好特点,同时具有较高的干断裂强度、湿断裂强度、干断裂伸长率,并且具有较好的抗菌、防螨效果；其中干断裂强度在2.25CN/dtex以上,湿断裂强度在1.25CN/dtex以上,干断裂伸长率为9%以上,抑菌率在95%以上。(The invention provides a preparation method of artemisia annua fiber, which comprises the following steps: (1) preparing a artemisia annua extract dispersion liquid; (2) preparing a reactive dye solution; (3) cationization of the fiber; (4) fiber pretreatment; (5) and fiber coating. The prepared fiber has high artemisinin content, and the prepared composite fiber has good performance; the production cycle is short and flexible, the small-batch multi-variety operation can be realized, and the stock pressure is reduced; the fiber prepared by the method has the characteristics of luster, brightness, softness, good moisture absorption and desorption property and good fiber softness, and simultaneously has higher dry breaking strength, wet breaking strength and dry breaking elongation, and better antibacterial and anti-mite effects; wherein the dry breaking strength is more than 2.25CN/dtex, the wet breaking strength is more than 1.25CN/dtex, the dry breaking elongation is more than 9 percent, and the bacteriostasis rate is more than 95 percent.)

1. A preparation method of artemisia annua fiber is characterized by comprising the following steps: the preparation method comprises the following steps:

(1) preparation of artemisia annua extract dispersion

Dissolving the artemisia annua extract powder in 50-degree deionized water, wherein the weight ratio of the artemisia annua to the water is 1:9, and then performing pressure filtration for 3 times by using a 500-mesh filter for later use;

(2) preparation of reactive dye solution

Active red: active yellow: the weight ratio of the green blue to the water is 0.11:0.6:0.2, the three are added into deionized water with the temperature of 50 ℃ according to the weight ratio, and the mixture is stirred for 30min electrically for standby;

(3) cationization of fibers

Adding softened water, a cationic modifier and caustic soda flakes into viscose fibers, heating to 80 ℃, preserving heat for 30min, neutralizing with acid for 15min, washing with water, and drying to obtain cationic viscose fibers;

(4) fiber pretreatment

Putting the cationic viscose fiber prepared in the step (3) into an inner cylinder of an impregnation barrel, wherein each cylinder is 220 kg, water is continuously added in the process of putting the cationic viscose fiber into the impregnation barrel to ensure that the fiber is compacted, then adding water into the impregnation barrel, wherein the water addition amount is 2200 kg, heating to 50 ℃, and starting a pump to circulate for 15 min;

(5) fiber coating

And (3) sequentially adding the artemisia annua extract dispersion liquid prepared in the step (1), the active dye solution prepared in the step (2) and a softening agent into an impregnation barrel, wherein the addition amount of the active dye solution is 315kg, the addition amount of the active dye solution is 20kg, the addition amount of the softening agent is 2.1kg, the impregnation barrel is started to circulate for 20min, the pump is stopped to discharge liquid, the fibers in the inner barrel are lifted out by a travelling crane, the fibers are placed in a dehydrator, the dehydration time is 120s, and the moisture content of the fibers is 300%, so that the artemisia annua fibers are prepared.

2. The method for preparing artemisia annua fiber according to claim 1, wherein the method comprises the following steps: the cationic modifier in the step (3) is N, N-dimethyl-3-hydroxyazetidinium chloride.

3. The method for preparing artemisia annua fiber according to claim 1, wherein the method comprises the following steps: the softening agent in the step (5) is an organic silicon finishing agent Goon 820.

4. A process for the preparation of artemisia annua fibre as claimed in any one of claims 1 to 3, wherein: and (3) a water spraying pipe for spraying water to the fibers is arranged in the inner barrel of the dipping barrel in the step (4), and a plurality of water spraying holes are formed in the water spraying pipe and comprise water spraying holes which are radially and horizontally arranged, water spraying holes which are obliquely arranged upwards and water spraying holes which are obliquely arranged downwards.

5. The method for preparing artemisia annua fiber according to claim 4, wherein the method comprises the following steps: the water spray angle of the water spray holes which are obliquely arranged upwards is 45 degrees upwards, and the water spray angle of the water spray holes which are obliquely arranged downwards is 45 degrees downwards.

6. The method for preparing artemisia annua fiber according to claim 4, wherein the method comprises the following steps: the water spraying pipe is arranged along the axial direction of the inner barrel and is positioned in the center of the inner barrel, the water spraying pipe and the inner barrel are both cylindrical, the water spraying pipe and the inner barrel are coaxially arranged, and the fibers are positioned between the water spraying pipe and the inner wall of the inner barrel.

7. A process for the preparation of artemisia annua fibre as claimed in any one of claims 1 to 3, wherein: the system further comprises a post-processing program, wherein the post-processing program comprises the following steps: opening, drying and packaging.

8. The method for preparing artemisia annua fiber according to claim 7, wherein the method comprises the following steps: the drying temperature is 60 ℃.

Technical Field

The invention belongs to the field of light industry textile, and particularly relates to a preparation method of artemisia annua fiber.

Background

The textile industry is the traditional industry in China, and along with the rapid development of textiles for clothing, household and industry, differentiation and individuation of textile products become the key points of the development of various enterprises. Functional fiber as high-grade textile raw material is obtained by improving the functions of the fiber through physical modification, chemical modification, molecular design and other means, so that the original viscose fiber is greatly improved in the aspects of photo-thermal stability, electric conduction, flame retardance, dyeing, static resistance, moisture absorption, fluffiness, pilling resistance, antifouling property and the like.

The regenerated cellulose fiber is produced by using natural cellulose (cotton, hemp, bamboo, tree, shrub) as raw material, and only changing the physical structure of the natural cellulose without changing the chemical structure of the natural cellulose. The regenerated cellulose fiber product takes 100% pure natural materials as raw materials, is naturally biodegradable, free of additives, heavy metals and harmful chemicals, is compatible and non-irritant to skin, and is an environment-friendly green fiber with excellent performance. The fabric made of the fibers is more comfortable to wear; the dyeing beauty is better than that of cotton fiber; soft, plump and smooth hand feeling, excellent drapability and silky luster; the thermal stability and the light stability are high, and static electricity is not generated; the strength and the elongation can meet the requirements of most textiles, and the textile has better spinnability.

At present, the trend of manufacturing various functional fibers by using plant traditional Chinese medicine extracts is gradually changed, such as honeysuckle fibers, wormwood fibers, sarcandra glabra fibers and the like, the plant traditional Chinese medicine extracts are blended into the fibers, the original characteristics of the fibers can be maintained, the unique functions of the plant traditional Chinese medicines can be compounded into the fibers, the fiber connotation is enriched, and the application space in the fields of clothing, home textiles and the like is increased.

At present, most of fibers with modified functions are prepared by adding plant traditional Chinese medicine extracts into regenerated fiber fibers in a blending mode, the process inevitably contacts a strong acid environment in the production process, the extracts are damaged and destroyed more or less, and in the fiber forming process, the extracts are partially lost.

Disclosure of Invention

The invention aims to solve the technical problem of providing a preparation method of artemisia annua fiber, which can not damage and destroy the component artemisinin in the artemisia annua extract and can keep high artemisinin content.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a preparation method of artemisia annua fiber is characterized by comprising the following steps: the preparation method comprises the following steps:

(1) preparation of artemisia annua extract dispersion

Dissolving the artemisia annua extract powder in 50-degree deionized water, wherein the weight ratio of the artemisia annua to the water is 1:9. Then using 500 mesh filter to filter 3 times under pressure for use.

(2) Preparation of reactive dye solution

Active red: active yellow: the weight ratio of the green blue to the water is 0.11:0.6:0.2, and the green blue, the water and the water are added into deionized water with the temperature of 50 ℃ according to the weight ratio and are stirred for 30min by an electric stirrer for standby.

(3) Cationization of fibers

Adding softened water, a cationic modifier and caustic soda flakes into the viscose fibers, heating to 80 ℃, preserving heat for 30min, neutralizing with acid for 15min, washing with water, and drying to obtain the cationic viscose fibers.

(4) Fiber pretreatment

And (3) putting the cationic viscose fiber prepared in the step (3) into an inner cylinder of an impregnation barrel, wherein 220 kg of cationic viscose fiber is put into each cylinder, water is continuously added in the process of putting the cationic viscose fiber into the impregnation barrel to ensure that the fibers are compacted, then water is added into the impregnation barrel, the water addition amount is 2200 kg, the temperature is raised to 50 ℃, and the pump is started to circulate for 15 min.

(5) Fiber coating

And (3) sequentially adding the artemisia annua extract dispersion liquid prepared in the step (1), the active dye solution prepared in the step (2) and a softening agent into an impregnation barrel, wherein the addition amount of the active dye solution is 315kg, the addition amount of the active dye solution is 20kg, the addition amount of the softening agent is 2.1kg, the impregnation barrel is started to circulate for 20min, the pump is stopped to discharge liquid, the fibers in the inner barrel are lifted out by a travelling crane, the fibers are placed in a dehydrator, the dehydration time is 120s, and the moisture content of the fibers is 300%, so that the artemisia annua fibers are prepared.

As an optimized proposal, the cation modifier in the step (3) is N, N-dimethyl-3-hydroxyazetidinium chloride.

As an optimized scheme, the softening agent in the step (5) is a silicone finishing agent Goon 820.

As an optimized scheme, the inner cylinder of the dipping barrel in the step (4) is provided with a water spraying pipe for spraying water to the fibers, and the water spraying pipe is provided with a plurality of water spraying holes, wherein the plurality of water spraying holes comprise water spraying holes which are radially and horizontally arranged, water spraying holes which are upwards inclined and water spraying holes which are downwards inclined.

As an optimized scheme, the water spraying angle of the water spraying holes which are obliquely arranged upwards is 45 degrees upwards, and the water spraying angle of the water spraying holes which are obliquely arranged downwards is 45 degrees downwards.

As an optimized scheme, the spray pipe is arranged along the axial direction of the inner barrel and is positioned in the center of the inner barrel, the spray pipe and the inner barrel are both cylindrical, the spray pipe and the inner barrel are coaxially arranged, and the fibers are positioned between the spray pipe and the inner wall of the inner barrel.

As an optimization scheme, the method further comprises a post-processing program, wherein the post-processing program comprises the following steps: opening, drying and packaging.

As an optimized scheme, the drying temperature is 60 ℃.

By adopting the technical scheme, the invention has the following advantages:

(1) the preparation method of the fiber comprises the steps of uniformly dispersing the artemisia annua extract powder in water to form artemisia annua extract dispersion liquid, then preparing the active dye solution and the cationic fiber, and preparing the artemisia annua fiber in a dipping and coating mode.

(2) The preparation method of the fiber has short production period and flexibility, can be operated in small batch and various types, reduces the stock pressure, can modify regenerated fibers, and also can modify lyocell fibers, cotton fibers, cuprammonium fibers and other fibers.

(3) The fiber prepared by the method has the characteristics of luster, brightness, softness, good moisture absorption and desorption property and good fiber softness, and simultaneously has higher dry breaking strength, wet breaking strength and dry breaking elongation, and better antibacterial and anti-mite effects; wherein the dry breaking strength is more than 2.25CN/dtex, the wet breaking strength is more than 1.25CN/dtex, the dry breaking elongation is more than 9 percent, and the bacteriostasis rate is more than 95 percent.

Drawings

FIG. 1 is a schematic view of the structure of the inner cylinder and the water spray pipe in the embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described 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 making any creative effort, shall fall within the protection scope of the present invention.

Example (b): a preparation method of artemisia annua fiber is characterized by comprising the following steps: the preparation method comprises the following steps:

(1) preparation of artemisia annua extract dispersion

Dissolving the artemisia annua extract powder in 50-degree deionized water, wherein the weight ratio of the artemisia annua to the water is 1:9, and then performing pressure filtration for 3 times by using a 500-mesh filter for later use.

(2) Preparation of reactive dye solution

Active red: active yellow: the weight ratio of the green blue to the water is 0.11:0.6:0.2, and the green blue, the water and the water are added into deionized water with the temperature of 50 ℃ according to the weight ratio and are stirred for 30min by an electric stirrer for standby.

(3) Cationization of fibers

Adding softened water, a cationic modifier and caustic soda flakes into the viscose fibers, heating to 80 ℃, preserving heat for 30min, neutralizing with acid for 15min, washing with water, and drying to obtain the cationic viscose fibers.

(4) Fiber pretreatment

And (3) putting the cationic viscose fiber prepared in the step (3) into an inner cylinder of an impregnation barrel, wherein 220 kg of cationic viscose fiber is put into each cylinder, water is continuously added in the process of putting the cationic viscose fiber into the impregnation barrel to ensure that the fibers are compacted, then water is added into the impregnation barrel, the water addition amount is 2200 kg, the temperature is raised to 50 ℃, and the pump is started to circulate for 15 min.

(5) Fiber coating

And (3) sequentially adding the artemisia annua extract dispersion liquid prepared in the step (1), the active dye solution prepared in the step (2) and a softening agent into an impregnation barrel, wherein the addition amount of the active dye solution is 315kg, the addition amount of the active dye solution is 20kg, the addition amount of the softening agent is 2.1kg, the impregnation barrel is started to circulate for 20min, the pump is stopped to discharge liquid, the fibers in the inner barrel are lifted out by a travelling crane, the fibers are placed in a dehydrator, the dehydration time is 120s, and the moisture content of the fibers is 300%, so that the artemisia annua fibers are prepared.

The system further comprises a post-processing program, wherein the post-processing program comprises the following steps: opening, drying and packaging, wherein the drying temperature is 60 ℃.

The preparation method solves the problems that the artemisia annua extract is free of acid and alkali when being added, the temperature is controlled below 60 ℃, the artemisinin cannot be damaged, and the content of the artemisinin in the prepared fiber is high.

The cationic modifier in the step (3) is N, N-dimethyl-3-hydroxyazetidinium chloride, and the softening agent in the step (5) is an organosilicone finishing agent Goon 820.

As shown in the attached figure 1, the inner cylinder 1 of the impregnation barrel in the step (3) is provided with a water spraying pipe 2 for spraying water to the fibers, the utility model discloses a washing machine, including inner tube 1, spray pipe 2, the upper portion of inner tube 1, the upper end fixedly connected with apron 6 of spray pipe 2, the upper portion of inner tube 1 is provided with gland 4, the upper end fixedly connected with apron 6 of spray pipe 2, the centre of apron 6 has the screw hole, bolt 5 passes gland 4 and the screw hole threaded connection on the apron 6, inner tube 1 is last to have a plurality of apopores 7, spray pipe 2 and the exit linkage of pump, the import of pump is passed through the pipeline and is connected with the urceolus of steeping vat, circulating liquid spouts from 3 of spray hole on spray pipe 2, in the urceolus that flows to the steeping vat from the apopore on the inner tube 1 behind the fibre, then flow into the import of pump through the pipeline, with this circulation.

The water spray angle of the water spray holes 3 which are inclined upwards is 45 degrees upwards, the water spray angle of the water spray holes 3 which are inclined downwards is 45 degrees downwards, and the water spray holes 3 with different water spray angles are arranged, so that water flows are crossed with each other, the direction of the water flows is changed, the impregnated dead angle is avoided, and the impregnation coating effect is improved. The existing horizontal radial arrangement is adopted, water flow sprayed from each water spraying hole 3 is horizontally and radially sprayed, the water flow is sprayed in parallel, dead space is easily formed between the water flows in parallel, and the uniformity of dip coating is not facilitated.

The water spraying pipe 2 is arranged along the axial direction of the inner barrel 1 and is positioned in the center of the inner barrel 1, the water spraying pipe 2 and the inner barrel 1 are both cylindrical, the water spraying pipe 2 and the inner barrel 1 are coaxially arranged, and the fibers are positioned between the water spraying pipe 2 and the inner wall of the inner barrel 1.

The prepared fiber is checked by an authority department, and the parameters are as follows:

1. bacteriostatic ratio (%)

Staphylococcus aureus >99

Escherichia coli >99

Candida albicans-99

2. Anti-mite effect

Dust mite repellency (%) 87

3. Artemisinin content (mg/kg) — 569.

Finally, it should be noted that: the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and the embodiments are examples, wherein the details that are not described are all the common general knowledge of those skilled in the art, and the technical solutions described in the foregoing embodiments can be modified or some technical features can be equivalently replaced by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.