阅读说明：本技术 一种超细旦涤纶拉伸丝的抗菌加工工艺 (Antibacterial processing technology of superfine denier polyester drawn yarn ) 是由 毛国兴 于 2020-12-31 设计创作，主要内容包括：本申请涉及涤纶拉伸丝加工的领域,具体公开了一种超细旦涤纶拉伸丝的抗菌加工工艺,包括以下步骤：S1：将原料超细旦涤纶拉伸丝先通过烘箱进行预热；S2：将步骤S1中预热后的涤纶拉伸丝通入碱雾；S3：将步骤S2中经过碱雾后的涤纶拉伸丝通入清洗池进行冲洗；S4：将冲洗后的涤纶丝通入抗菌整理液中进行抗菌整理；S5：将抗菌整理后的涤纶丝导入烘箱烘干；S6：将烘干后的涤纶丝收卷即可。其具有提高涤纶拉伸丝抗菌耐久性的优点。(The application relates to the field of processing of polyester drawn yarns, and particularly discloses an antibacterial processing technology of superfine denier polyester drawn yarns, which comprises the following steps: s1: preheating a raw material of superfine denier polyester drawn yarn through an oven; s2: introducing alkali fog into the polyester drawn yarn preheated in the step S1; s3: introducing the polyester drawn yarns subjected to the alkali fog in the step S2 into a cleaning pool for washing; s4: introducing the washed polyester yarns into an antibacterial finishing liquid for antibacterial finishing; s5: guiding the antibacterial finished polyester yarns into an oven for drying; s6: and winding the dried polyester yarns. The polyester drawn yarn has the advantage of improving the antibacterial durability of the polyester drawn yarn.)

1. An antibacterial processing technology of superfine denier polyester drawn yarns is characterized by comprising the following steps:

s1: preheating a raw material of superfine denier polyester drawn yarn through an oven;

s2: introducing alkali fog into the polyester drawn yarn preheated in the step S1;

s3: introducing the polyester drawn yarns subjected to the alkali fog in the step S2 into a cleaning pool for washing;

s4: introducing the washed polyester yarns into an antibacterial finishing liquid for antibacterial finishing;

s5: guiding the antibacterial finished polyester yarns into an oven for drying;

s6: and winding the dried polyester yarns.

2. The antibacterial processing technology of the superfine denier polyester drawn yarn as claimed in claim 1, is characterized in that: in the step S2, the alkali fog is formed by atomizing a sodium hydroxide solution with pH of 9-12.

3. The antibacterial processing technology of the superfine denier polyester drawn yarn as claimed in claim 1, is characterized in that: the antibacterial finishing liquid comprises the following components in parts by weight:

4. the antibacterial processing technology of the superfine denier polyester drawn yarn as claimed in claim 3, which is characterized in that: the antibacterial microcapsule is prepared from the following components in percentage by weight:

wherein the concentration of the sodium sulfate solution is 200g/L, the volume fraction of the glutaraldehyde solution is 37%, and the mass fraction of the gelatin distilled water solution is 5%.

5. The antibacterial processing technology of the superfine denier polyester drawn yarn as claimed in claim 4, is characterized in that: the plant raw material of the antibacterial plant extract is one or more of sweet wormwood herb, ginger and honeysuckle.

6. The antibacterial processing technology of the superfine denier polyester drawn yarn as claimed in claim 4, is characterized in that: the extraction process of the antibacterial plant extract comprises the following steps:

step 1): cleaning plant materials, and oven drying at 50-60 deg.C;

step 2): crushing the dried plant raw materials to obtain dry powder;

step 3): mixing the dry powder with absolute ethyl alcohol, sealing, oscillating for 1h by ultrasonic wave, and standing for 20-24 h;

step 4): filtering for 3-5 times by using medical gauze to obtain light yellow grease;

step 5): evaporating the yellowish oil with rotary evaporator to remove ethanol, and concentrating to obtain antibacterial plant extract.

7. The antibacterial processing technology of the superfine denier polyester drawn yarn as claimed in claim 4, is characterized in that: the preparation process of the antibacterial microcapsule comprises the following steps:

step 1): adding the antibacterial plant extract into the gelatin distilled water solution, and stirring;

step 2): dropping a sodium sulfate solution into the mixed solution in the step 1) which is continuously stirred at the speed of 2ml-2.5 ml/min;

step 3): cooling the mixed solution obtained in the step 2) to 4-5 ℃, and adjusting the pH value to 8.5-9.5;

step 4): adding glutaraldehyde solution into the mixed solution with the pH adjusted in the step 3) to crosslink and harden the mixed solution to obtain turbid liquid;

step 5): centrifuging the suspension obtained in the step 4) to obtain an antibacterial microcapsule crude product, and cleaning for 3-5 times by using distilled water to obtain the antibacterial microcapsule.

8. The antibacterial processing technology of the superfine denier polyester drawn yarn as claimed in claim 3, which is characterized in that: the dispersant comprises the following components in percentage by weight:

20-40% of sodium cocoyl methyl taurate;

10-50% of sodium lauroyl isethionate;

10-30% of sodium dodecyl benzene sulfonate.

Technical Field

The application relates to the field of polyester processing, in particular to an antibacterial processing technology of superfine denier polyester drawn yarns.

Background

The polyester drawn yarn is polyester fiber and is polyester formed by polycondensation of organic dibasic acid and organic dihydric alcohol. The polyester fiber has the greatest advantages of better crease resistance and shape retention. Along with the improvement of living standard of people, the requirements for clothes made of terylene and the like are gradually improved. Especially the antibacterial ability of terylene.

Most of the existing antibacterial processing technologies of polyester and other fiber yarns are to attach antibacterial components to fabrics in a manner of directly padding woven fabrics. However, the antibacterial fabric obtained by the direct padding method easily elutes antibacterial substances along with multiple times of washing of the fabric, so that the antibacterial capability is reduced. Therefore, it is necessary to provide a process for antibacterial processing of polyester drawn yarns to meet the demand for better antibacterial durability of polyester.

Disclosure of Invention

In order to improve the antibacterial capability of the polyester drawn yarn, the application provides an antibacterial processing technology of the superfine denier polyester drawn yarn.

The application provides an antibiotic processing technology of superfine denier polyester drawn yarn, adopts the following technical scheme:

an antibacterial processing technology of superfine denier polyester drawn yarns comprises the following steps:

s1: preheating a raw material of superfine denier polyester drawn yarn through an oven;

s2: introducing alkali fog into the polyester drawn yarn preheated in the step S1;

s3: introducing the polyester drawn yarns subjected to the alkali fog in the step S2 into a cleaning pool for washing;

s4: introducing the washed polyester yarns into an antibacterial finishing liquid for antibacterial finishing;

s5: guiding the antibacterial finished polyester yarns into an oven for drying;

s6: and winding the dried polyester yarns.

Through adopting above-mentioned technical scheme, the tensile silk temperature of dacron rises after the tensile silk of dacron preheats, and the tensile silk of dacron can be softened in the temperature rise to make the tensile silk of dacron that lets in the step S2 be corroded out the micropore by the acid in the alkali fog more easily, micropore dispersion is more even. And step S3 is carried out to remove the residual acid on the polyester drawn yarn by cleaning, so as to avoid the influence of the residual acid on the antibacterial finishing liquid. And (2) the cleaned polyester drawn yarn is then introduced into the antibacterial finishing liquid, antibacterial components in the antibacterial finishing liquid are attached to the surface of the polyester drawn yarn, the specific surface area of the polyester drawn yarn is increased due to the action of micropores, the adsorption capacity of the polyester drawn yarn is enhanced, and the antibacterial components are adsorbed into the micropores, so that the antibacterial durability of the polyester drawn yarn after antibacterial finishing is improved.

Preferably, the alkali fog in step S2 is formed by atomizing a sodium hydroxide solution with a pH of 9-12.

By adopting the technical scheme, the pH value of the alkali mist is 9-12, so that ester bonds on the surface of the polyester drawn yarn can be partially broken in the time that the polyester drawn yarn passes through the alkali mist without being completely broken, and the surface of the polyester yarn forms micropore appearance at the broken part of the ester bonds, thereby improving the antibacterial effect of the polyester drawn yarn when the polyester drawn yarn is immersed into the antibacterial finishing liquid for antibacterial finishing, and the antibacterial components in the antibacterial finishing liquid can be attached to the polyester drawn yarn to a great extent.

Preferably, the antibacterial finishing liquid comprises the following components in parts by weight:

by adopting the technical scheme, the antibacterial substance is wrapped in the microcapsule by the antibacterial microcapsule, the microcapsule is uniformly dispersed in the deionized water by the dispersing agent, and when the polyester filament yarn passes through the antibacterial finishing liquid, the uniformly dispersed antibacterial microcapsule is uniformly attached to the surface of the polyester filament yarn and in micropores on the polyester filament yarn. The antibacterial substance wrapped in the microcapsule has more lasting antibacterial ability after the polyester extended yarns are woven into the fabric. The penetrant can permeate into the polyester filament yarns and open partial ester bonds on the polyester yarns, so that the polyester filament yarns can absorb microcapsules through microcracks formed at broken ester bonds except micropores, and more microcapsules are absorbed on the polyester filament yarns.

Preferably, the antibacterial microcapsule is prepared from the following components in percentage by weight:

wherein the concentration of the sodium sulfate solution is 200g/L, the volume fraction of the glutaraldehyde solution is 37%, and the mass fraction of the gelatin distilled water solution is 5%.

By adopting the technical scheme, the gelatin swells in the distilled water, the antibacterial plant extracting solution is dispersed in the distilled water solution of the gelatin, and then the added sodium sulfate solution enables the gelatin to be deposited on the surface of the antibacterial plant extracting solution. The solution is then cross-linked by a glutaraldehyde solution to give microcapsules containing the antimicrobial plant extract.

Preferably, the plant raw material of the antibacterial plant extract is one or more of sweet wormwood, ginger and honeysuckle.

By adopting the technical scheme, the honeysuckle extract and the artemisia apiacea extract contain neuraminidase inhibitors capable of inhibiting viruses, and the possible action mechanism is that oxygen atom groups around the surfaces of active compounds of the plants can form hydrogen bonds with active sites of receptor protein neuraminidase, so that the neuraminidase inhibitors are inhibited. Meanwhile, the sweet wormwood herb extract, the ginger extract and the honeysuckle flower extract are all provided with antibacterial substances which can inhibit bacteria, and have good antibacterial capacity.

Preferably, the extraction process of the antibacterial plant extract comprises the following steps:

step 1): cleaning plant materials, and oven drying at 50-60 deg.C;

step 2): crushing the dried plant raw materials to obtain dry powder;

step 3): mixing the dry powder with absolute ethyl alcohol, sealing, oscillating for 1h by ultrasonic wave, and standing for 20-24 h;

step 4): filtering for 3-5 times by using medical gauze to obtain light yellow grease;

step 5): evaporating the yellowish oil with rotary evaporator to remove ethanol, and concentrating to obtain antibacterial plant extract.

By adopting the technical scheme, the plant dry powder dissolves out organic matters in plant cells in ethanol by the principle of similarity and intermiscibility to obtain the plant antibacterial extract. After the plant dry powder and the ethanol are mixed, the ultrasonic oscillation is firstly carried out for 1h, so that the plant dry powder and the ethanol are favorably and fully mixed, and from the molecular angle, the contact sites of the ethanol and the plant dry powder can be more, so that the dissolution of organic matters in the plant dry powder is promoted.

Preferably, the preparation process of the antibacterial microcapsule comprises the following steps:

step 1): adding the antibacterial plant extract into the gelatin distilled water solution, and stirring;

step 2): dropping a sodium sulfate solution into the mixed solution in the step 1) which is continuously stirred at the speed of 2ml-2.5 ml/min;

step 3): cooling the mixed solution obtained in the step 2) to 4-5 ℃, and adjusting the pH value to 8.5-9.5;

step 4): adding glutaraldehyde solution into the mixed solution with the pH adjusted in the step 3) to crosslink and harden the mixed solution to obtain turbid liquid;

step 5): centrifuging the suspension obtained in the step 4) to obtain an antibacterial microcapsule crude product, and cleaning for 3-5 times by using distilled water to obtain the antibacterial microcapsule.

By adopting the technical scheme, the plant extract is uniformly dispersed into the gelatin distilled water solution by stirring, then the sodium sulfate solution is dripped to deposit the gelatin on the surface of the antibacterial plant extract, and finally the gelatin solution is crosslinked and hardened by glutaraldehyde, so that the antibacterial microcapsule is obtained.

Preferably, the dispersant comprises the following components in percentage by weight:

20-40% of sodium cocoyl methyl taurate;

10-50% of sodium lauroyl isethionate;

10-30% of sodium dodecyl benzene sulfonate.

By adopting the technical scheme, the cocoyl methyl sodium taurate is an anionic surfactant and has strong dispersing capacity. The cocoyl methyl sodium taurate has strong compatibility with various surfactants, has good wetting and softening capabilities, can play a role in dispersing the antibacterial microcapsules, and can also soften the polyester drawn yarns, so that the microcapsules can be more easily adhered to the polyester drawn yarns. Sodium lauroyl isethionate is also an anionic surfactant which, in addition to its dispersing action, provides a longer lasting dispersing effect. The sodium dodecyl benzene sulfonate has low cost, is used for reducing the preparation cost of the dispersing agent, has good biodegradability and can reduce the pollution of waste water.

In summary, the present application has the following beneficial effects:

1. because this application adopts and carries out antibiotic processing to the dacron tensile silk, because the antibiotic composition that has antibiotic ability has adhered on the dacron tensile silk, obtained the effect that dacron tensile silk itself has antibiotic ability.

2. The polyester drawn yarn is preferably treated by the alkali fog in the application and then treated by the antibacterial microcapsule, and micropores in the polyester drawn yarn are increased due to the alkali fog, so that the effect of better durability of antibacterial ability is obtained.

3. In the application, the antibacterial microcapsule is preferably adopted to treat the polyester drawn yarn, and the antibacterial component in the antibacterial microcapsule is coated, so that the effects that the antibacterial component is not easy to elute and the durability is enhanced are obtained.

Detailed Description

The present application will be described in further detail with reference to examples.

The raw materials used in the present application are as follows:

gelatin is purchased to Jinchuan chemical Limited of Jinhui of Jinan;

sodium sulfate was purchased to Hangzhou YingYu chemical Co Ltd;

the glutaraldehyde is purchased to the chemical company Jinan Hongwang;

ethanol procurement to Suzhou Hongyuan Xin chemical industry Co., Ltd;

the penetrant is purchased to a rapid penetrant of Xinxiang sanden chemical import and export Limited company in Shandong province.

Preparation examples of raw materials

The preparation processes of the antibacterial plant extract and the antibacterial microcapsule in preparation examples 1 to 3 are as follows:

the extraction process of the antibacterial plant extract comprises the following steps:

step 1): cleaning the plant material and washing at T₁Drying in an oven at the temperature of DEG C;

step 2): crushing the dried plant raw materials to obtain dry powder;

step 3): mixing the dry powder with anhydrous ethanol, sealing, and ultrasonic oscillating₁h, then standing for t₂h；

Step 4): filtering with medical gauze for A times to obtain light yellow oil;

step 5): evaporating the yellowish oil with rotary evaporator to remove ethanol, and concentrating to obtain antibacterial plant extract.

The preparation process of the antibacterial microcapsule comprises the following steps:

step 1): adding the antibacterial plant extract into the gelatin distilled water solution, and stirring;

step 2): dropping a sodium sulfate solution into the mixed solution in the step 1) which is continuously stirred at the speed of Vml/min;

step 3): cooling the mixed liquid obtained in the step 2) to T₂Regulating the pH value to B;

step 4): adding glutaraldehyde solution into the mixed solution with the pH adjusted in the step 3) to crosslink and harden the mixed solution to obtain turbid liquid;

step 5): centrifuging the suspension obtained in the step 4) to obtain an antibacterial microcapsule crude product, and cleaning the antibacterial microcapsule crude product for C times by using distilled water to obtain the antibacterial microcapsule.

Table 1, table 2 and table 3 show the raw materials of the antibacterial extract and the antibacterial microcapsule, and the parameters of the processes for producing the antibacterial plant extract and the antibacterial microcapsule.

TABLE 1

TABLE 2

TABLE 3

In Table 2, the concentration of the sodium sulfate solution was 200g/L, the volume fraction of the glutaraldehyde solution was 37%, and the mass fraction of the gelatin distilled water solution was 5%.

Examples

In embodiments 1 to 5, an antibacterial processing process of a drawn superfine denier polyester yarn includes the following steps:

s1: preheating a raw material of superfine denier polyester drawn yarn through an oven;

s2: and (4) introducing alkali fog into the polyester drawn yarn preheated in the step (S1), wherein the alkali fog is formed by atomizing sodium hydroxide solution with the pH value of 12.

S3: introducing the polyester drawn yarns subjected to the alkali fog in the step S2 into a cleaning pool for washing;

s4: introducing the washed polyester yarns into an antibacterial finishing liquid for antibacterial finishing;

s5: guiding the antibacterial finished polyester yarns into an oven for drying;

s6: and winding the dried polyester yarns.

In examples 1 to 5, the antibacterial finishing liquid comprises the components in parts by weight shown in table 4, and the dispersant comprises the components in percentage by weight shown in table 5.

TABLE 4

TABLE 5

Example 6 differs from example 1 in that the pH of the alkali mist is 11.

Example 7 differs from example 1 in that the pH of the alkali mist is 10.

Comparative example

Comparative example 1 polyester drawn yarn from shun cheng textile technology ltd, su.

Comparative example 2 is different from example 1 in that the drawn polyester yarn is not treated with the alkali mist of step S2.

Comparative example 3 differs from example 1 in that the dispersant is CM-2163 carbon black dispersant from Jiaming chemical Co., Ltd.

Performance test

Antibacterial testing

AATCC-90 test method: test bacteria are inoculated on an agar culture medium, the test bacteria are tightly attached to a sample, the culture is carried out for 24 hours at 37 ℃, and then the propagation condition of the bacteria and the size of a halo in a sterile area around the sample are observed by a magnifying glass. The width of the stop band is increased from 1 level to 10 levels in sequence. The width of the stop band represents the magnitude of the antimicrobial efficacy. The test bacteria are staphylococcus aureus, and the samples are the polyester yarns obtained by rinsing the polyester yarns in the examples and the comparative examples with 100 times of clear water.

TABLE 6

And (4) conclusion: from the above table, it can be seen that the width of the barrier tape is gradually increased from examples 1 to 7, which illustrates that the antibacterial ability and the antibacterial durability of the drawn polyester yarn are enhanced with the increase of the addition amount of the antibacterial microcapsules in examples 1 to 7. The antibacterial ability enhancement of the polyester drawn yarn has a certain limit, which shows that the antibacterial microcapsules can not be attached to the polyester drawn yarn without limit.

By comparing example 1 with the pairs of examples 6 and 7, it can be seen that the control of the pH of the alkali mist has a significant effect on the attachment of the antimicrobial microcapsules on the polyester drawn yarns. As can be seen from table 6, when the pH of the alkali mist is controlled to 11, the effect of attaching the antibacterial microcapsules to the polyester drawn yarn is the best, and the antibacterial durability is the strongest.

As can be seen from the comparison between the comparative example 1 and the example 1, the antibacterial ability of the polyester drawn yarn in the application is obviously increased due to the attachment of the antibacterial microcapsules; it can be seen from the comparison between the comparative example 2 and the example 1 that the alkali fog can improve the adsorption capacity of the polyester drawn yarn to the antibacterial microcapsules, thereby improving the antibacterial capacity of the polyester drawn yarn. As can be seen from comparison between the comparative example 3 and the example 1, the dispersing agent adopted in the application has better dispersing effect on the antibacterial microcapsules, so that the antibacterial capability of the polyester drawn yarns is obviously improved.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.