Preparation process of deodorization electrostatic spinning solution and method for producing deodorization yarn

Abstract

The invention discloses a preparation process of a deodorizing electrostatic spinning solution, which comprises the following steps: step 1, weighing TPU (thermoplastic polyurethane), dissolving the TPU in N, N-dimethylformamide, and controlling the mass fraction of the TPU in the solution to be 5-15%; and 2, weighing 2-4% of triclosan, 0.5-2% of nano zinc oxide, 1-4% of tea polyphenol and 1-4% of beta-cyclic refined paste based on the total mass of the solution, mechanically stirring for 24 hours, and dispersing in the solution to prepare the deodorizing electrostatic spinning solution. According to the invention, the deodorizing functional auxiliary agent is compounded into the spinning substrate by utilizing an electrostatic spinning technology, and the deodorizing functional fiber is wrapped in the middle of the card sliver, so that a finished fabric made of the yarn has a high deodorizing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of textile production, and particularly relates to a preparation process of a deodorant electrospinning solution and a method for producing odor-resistant yarns. Background Art

[0002] With the continuous improvement of living standards, people pay more and more attention to health problems. Textiles are the items that are most closely in contact with humans, and high-performance deodorant textiles are very popular in the market. Traditional deodorant functional fabrics are all realized through post-finishing processes, which are complex, require the use of a large amount of chemically synthesized deodorant auxiliaries, generate a large amount of sewage, and have a large amount of energy consumption. For the deodorant fabrics produced by the post-finishing process, since the auxiliaries are all attached to the surface of the fibers, they are not wash-resistant and have a short service life. Summary of the Invention

[0003] The purpose of the present invention is to provide a preparation process of a deodorant electrospinning solution and a method for producing odor-resistant yarns. By using electrospinning technology, deodorant functional auxiliaries are compounded into the spinning substrate, and when passing through the cotton web on the carding machine, the spinning solution is sprayed onto the cotton web thin layer, collected and wound into a roll, and the deodorant functional fibers are wrapped in the sliver, endowing the yarn with a deodorant function from the source end, so that the finished fabric made of the yarn has a high deodorant effect. The process is simple, low-carbon and environmentally friendly, and is a reliable solution for preparing deodorant functional fabrics, so as to solve the problems raised in the above background art.

[0004] In order to achieve the purpose of the present invention, the present invention provides a preparation process of a deodorant electrospinning solution, including the following steps: Step 1: Weigh TPU and dissolve it in N,N-dimethylformamide, and the mass fraction of TPU in the solution is 5-15%; Step 2: Weigh 2%-4% of the total mass of the above solution of triclosan, 0.5%-2% of nano-zinc oxide, 1%-4% of tea polyphenols, and 1%-4% of β-cyclodextrin, and mechanically stir for 24 hours to disperse them in the solution to obtain a deodorant electrospinning solution.

[0005] As a preferred technical solution of the present invention, in Step 1, the mass fraction of TPU in the solution is 7.7%.

[0006] As a preferred technical solution of the present invention, in Step 2, weigh 2.5% of the total mass of the above solution of triclosan, 0.5% of nano-zinc oxide, 2% of tea polyphenols, and 1.7% of β-cyclodextrin.

[0007] The present invention provides a method for producing deodorant yarns, including the following steps: S1. First, the raw cotton is loosened in the grading chamber and then loaded into the grabber of the bale opener in the cotton cleaning section. The raw cotton in the box is grabbed by the grabber, and the compact cotton bale is loosened into large cotton lumps, which are sent into the mixing machine for mixing. After the cotton lumps are loosened and mixed, they are sent into the carding machine. After the cotton lumps are carefully loosened and impurities are removed by the beater of the carding machine, they are sent into the feeding box and finally processed into a cotton roll on the coiler. S2. Place the cotton roll on the special carding machine for electrospinning. The cotton roll is carded into a cotton web by the special carding machine to remove cotton knots, short lint impurities in the cotton tufts, and improve the straightening and parallelism of the fibers. Then, the cotton web is sent into the electrospinning equipment through the conveying curtain. S3. Spray the anti-odor electrospinning solution onto the cotton web through electrospinning technology. Through the gathering device, the anti-odor nanofibers on the surface of the cotton web are wrapped in the middle of the sliver to prepare the anti-odor sliver. S4. After the anti-odor sliver is processed into a pre-drawn sliver by the draw frame, it forms a small roll through the sliver lap machine. The small roll is placed on the coiling roller of the comber. After further removing impurities and short fibers by the combing of the cylinder and top comb of the comber, the anti-odor combed sliver is formed through the drafting zone of the comber. S5. The anti-odor combed sliver is drawn through two draw frames to prepare the anti-odor finished sliver. Then, the anti-odor finished sliver is further drawn and thinned into a roving by the roving frame. The roving is installed on the creel of the ring frame. Through the drafting function of the ring frame, a bobbin yarn is formed. Finally, the quality of the yarn is inspected by the winding machine, and the defects on the yarn are cut to form the final anti-odor yarn product.

[0008] As a preferred technical solution of the present invention, in the step S1, the grabber is a FA002A grabber, the mixing machine is a FA035 mixing machine, the carding machine is a FA106 carding machine, the feeding box is a FA046 feeding box, and the coiler is a FA141 coiler.

[0009] As a preferred technical solution of the present invention, in the step S2, the conveying speed of the conveying curtain is 55 m / min, the industrial speed of the spinning solution is 0.5 rpm, and the electrospinning voltage is 42 kV.

[0010] As a preferred technical solution of the present invention, in the step S4, the draw frame is a FA306A draw frame, the sliver lap machine is an E32 sliver lap machine, and the comber is an E62 comber.

[0011] As a preferred technical solution of the present invention, in the step S5, the roving frame is a JWF1415 roving frame, the ring frame is a DTM129 ring frame, and the winding machine is a No. 21C winding machine.

[0012] Compared with the prior art, the present invention provides a preparation process of a deodorant electrospinning solution and a method for producing deodorant yarns, having the following beneficial effects: 1. Utilize the electrospinning technology to compound the deodorant functional additive into the spinning substrate, spray and spin it onto the thin layer of the cotton web when passing through the carding machine, bundle it into a roll, wrap the deodorant functional fibers in the sliver, endow the yarn with deodorant function from the source end, so that the finished fabric made of the yarn has a high deodorant effect; 2. Effectively reduce the dosage of the additive, and a small amount of the functional additive can achieve an efficient deodorant effect; 3. By compounding the deodorant additive functional fibers during the spinning process, the yarn and its finished fabric have deodorant effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic flow chart of the preparation steps of the deodorant electrospinning solution of the present invention; Figure 2 is a schematic flow chart of the steps for producing deodorant yarns of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0015] The TPU used in the embodiments of the present invention was purchased from Huachuang Plastic Raw Material Business, the DMF was purchased from Jiangyin Zemao Chemical Co., Ltd., the triclosan was purchased from Bozhou Senchuang Pharmaceutical Co., Ltd., the nano-zinc oxide was purchased from Shanghai Macklin Biochemical Co., Ltd., the tea polyphenols were purchased from Xi'an Zhongkeda Biotechnology Co., Ltd., the β-cyclodextrin was purchased from Jiangsu Taize Biotechnology Co., Ltd., and other raw materials and machines were all commercially available products.

[0016] Example 1 A preparation process of a deodorant electrospinning solution includes the following steps: Step 1: Weigh 5.4 kg of TPU and dissolve it in 95 kg of DMF, and the mass fraction of TPU in the solution is 5%; Step 2: Weigh 2.7 kg of triclosan, 0.5 kg of nano-zinc oxide, 2 kg of tea polyphenols, and 1.7 kg of β-cyclodextrin, disperse them in the solution, and mechanically stir for 24 hours to obtain the deodorant electrospinning solution.

[0017] Example 2 A preparation process of a deodorant electrospinning solution includes the following steps: Step 1: Weigh 11 kg of TPU and dissolve it in 90 kg of DMF. The mass fraction of TPU in the solution is 10%. Step 2: Weigh 3 kg of triclosan, 1 kg of nano-zinc oxide, 1 kg of tea polyphenols, and 2 kg of β-cyclodextrin, disperse them in the solution, and mechanically stir for 24 hours to obtain a deodorant electrospinning solution.

[0018] Example 3 A preparation process of a deodorant electrospinning solution includes the following steps: Step 1: Weigh 19 kg of TPU and dissolve it in 85 kg of DMF. The mass fraction of TPU in the solution is 15%. Step 2: Weigh 5 kg of triclosan, 2.5 kg of nano-zinc oxide, 5 kg of tea polyphenols, and 5 kg of β-cyclodextrin, disperse them in the solution, and mechanically stir for 24 hours to obtain a deodorant electrospinning solution.

[0019] Example 4 A preparation process of a deodorant electrospinning solution includes the following steps: Step 1: Weigh 11 kg of TPU and dissolve it in 90 kg of DMF. The mass fraction of TPU in the solution is 10%. Step 2: Weigh 3.5 kg of triclosan, 2 kg of nano-zinc oxide, 3 kg of tea polyphenols, and 3 kg of β-cyclodextrin, disperse them in the solution, and mechanically stir for 24 hours to obtain a deodorant electrospinning solution.

[0020] Example 5 A method for producing deodorant yarn using the deodorant electrospinning solution prepared in Example 3 above includes the following steps: Step 1: After the raw cotton is loosened in the grading chamber, it is loaded into the waiting area of the FA002A bale opener in the bale cleaning process. The raw cotton in the box is grabbed by the bale opener, and the compact cotton bale is loosened into large cotton lumps, which are sent into the FA035 mixing machine for mixing. Through the mixing and beater of the mixing machine, the large cotton lumps are further torn, reducing the size of the cotton lumps and exposing the impurities further. After the loosened and mixed cotton lumps are sent into the FA106 bale cleaning machine, the cotton lumps are carefully loosened and decontaminated by the beater of the bale opener, and then sent into the FA046 feeding box. Finally, it is processed into a cotton roll on the FA141 coiler. Step 2: Place the cotton roll on the carding machine, and through the carding machine, the cotton knots, short lint impurities in the cotton bundle are removed, and the straightening and parallelism of the fibers are improved. Then, through the drawing and coiling mechanisms, ordinary sliver is formed. Step 3: Place the cotton roll on a special carding machine for electrospinning. Card it into a cotton web through the special carding machine to remove cotton knots, short lint impurities in the cotton bundle, and improve the straightening and parallelism of the fibers. Then, send the cotton web into the electrospinning equipment through a conveying curtain. Spray the deodorant electrospinning solution onto the cotton web through electrospinning technology. Through a bunching device, wrap the deodorant nanofibers on the surface of the cotton web in the middle of the sliver to prepare a deodorant sliver. The conveying speed of the conveying curtain is 55 m / min, the spinning solution industrial speed is 0.5 rpm, and the electrospinning voltage is 42 kV; Step 4: After blending and processing the deodorant sliver into a pre-drawn sliver through a FA306A type draw frame, form a small roll through a sliver lap former. Place the small roll on the lap roller of a JSFA288 comber. Further remove impurities and short fibers through the carding of the cylinder and top comb of the comber, and then form a combed sliver through the drafting zone of the comber. Draw the combed sliver output by the comber through two FA306A type draw frames to improve the straightening and parallelism. Then, further draw and thin the fiber sliver into a roving through a JWF1415 type roving frame. Install the roving on the ring traveler of a DTM129 ring spinning frame, and form a bobbin yarn through the drafting action of the ring spinning frame. Finally, conduct quality inspection on the yarn through a No. 21C type winder, cut the defects on the yarn, and form the final deodorant yarn product. The deodorant cotton 21SK jersey fabric made from the deodorant yarn of this embodiment has been tested by Zhonglian Product Inspection (Beijing) Testing Technology Co., Ltd. and has a strong deodorant effect. The specific results are as follows:

[0021] The reduction rate of ammonia concentration is 85.8%, the reduction rate of acetic acid concentration is 99.6, the reduction rate of isovaleric acid concentration is 99.6%, and the reduction rate of 2-nonenal concentration is 94.7% (washed simply according to FZ / T73023-2006, washed 10 times with water, laid flat and dried).

[0022] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A preparation process of an anti-odor electrospinning solution, characterized in that, It includes the following steps: Step 1: Weigh TPU and dissolve it in N,N-dimethylformamide. The mass fraction of TPU in the solution is 5-15%. Step 2: Weigh triclosan accounting for 2%-4% of the total mass of the above solution, nano-zinc oxide accounting for 0.5%-2%, tea polyphenols accounting for 1%-4%, and β-cyclodextrin accounting for 1%-4%. Mechanically stir for 24 hours and disperse them in the solution to obtain a deodorant electrospinning solution.

2. The preparation process of a deodorant electrospinning solution according to claim 1, characterized in that: In Step 1, the mass fraction of TPU in the solution is 7.7%.

3. The preparation process of a deodorant electrospinning solution according to claim 1, characterized in that: In Step 2, weigh triclosan accounting for 2.5% of the total mass of the above solution, nano-zinc oxide accounting for 0.5%, tea polyphenols accounting for 2%, and β-cyclodextrin accounting for 1.7%.

4. A method for producing deodorant yarns using the deodorant electrospinning solution according to any one of claims 1-3, characterized in that, It includes the following steps: S1. First, loosen the raw cotton in the grading chamber and load it at the place to be grabbed by the bale opener in the cotton cleaning process. Use the bale opener to grab the raw cotton in the box, loosen the compact cotton bale into large cotton lumps, send them into the mixing machine for mixing. After loosening and mixing, send the cotton lumps into the cotton cleaning machine. After the beater of the cotton cleaning machine finely loosens and removes impurities from the cotton lumps, send them into the feeding box, and finally process them into a cotton lap on the lap former. S2. Place the cotton lap on the special carding machine for electrospinning, card it into a cotton web through the special carding machine, remove the cotton knots and short fiber impurities in the cotton bundle, improve the straightening and parallelism of the fibers, and then send the cotton web into the electrospinning equipment through the conveying curtain. S3. Spray the deodorant electrospinning solution onto the cotton web through electrospinning technology. Through the bunching device, wrap the deodorant nanofibers on the surface of the cotton web in the middle of the sliver to prepare a deodorant sliver. S4. After the deodorant sliver is processed into a pre-drawn sliver by the draw frame, form a small roll through the sliver lap machine. Place the small roll on the lap roller of the comber. After further removing impurities and short fibers through the combing of the cylinder and top comb of the comber, form a deodorant combed sliver in the drafting zone of the comber. S5. Draw the deodorant combed sliver through two draw frames to prepare a deodorant finished sliver. Then, further draw and thin the deodorant finished sliver into a roving through the roving frame. Install the roving on the ring traveler of the ring spinning frame. Through the drafting action of the ring spinning frame, form a bobbin yarn. Finally, conduct quality inspection on the yarn through the winding machine, cut the defects on the yarn, and form the final deodorant yarn product.

5. The method for producing a deodorant yarn according to claim 4, characterized in that: In the step S1, the bale opener is FA002A bale opener, the mixing machine is FA035 mixing machine, the cotton cleaning machine is FA106 cotton cleaning machine, the feeding box is FA046 feeding box, and the lap former is FA141 lap former.

6. The method for producing a deodorant yarn according to claim 4, characterized in that: In the step S2, the conveying speed of the conveying curtain is 55 m / min, the industrial speed of the spinning solution is 0.5 rpm, and the electrospinning voltage is 42 kV.

7. The method for producing a deodorant yarn according to claim 4, characterized in that: In the step S4, the draw frame is a FA306A type draw frame, the sliver lap machine is an E32 sliver lap machine, and the comber is an E62 comber.

8. A method for producing odor-proof yarn according to claim 4, characterized in that: In the step S5, the roving frame is a JWF1415 type roving frame, the ring spinning frame is a DTM129 ring spinning frame, and the winding machine is a No. 21C type winding machine.

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