CN114351336A - Regenerated polyester super-hydrophilic quick-drying knitted fabric and preparation method thereof - Google Patents
Regenerated polyester super-hydrophilic quick-drying knitted fabric and preparation method thereof Download PDFInfo
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Abstract
The application relates to the technical field of spinning, in particular to a regenerated polyester super-hydrophilic quick-drying knitted fabric and a preparation method thereof. The regenerated polyester super-hydrophilic quick-drying knitted fabric is formed by weaving 42-52% of regenerated polyester and 48-58% of cross regenerated polyester through double-sided weft yarns and padding through a water absorbing finishing agent according to the weight percentage; the fineness of the regenerated terylene is 0.3-0.6 dpf; the fineness of the cross regenerated terylene is 2.1-2.8 dpf; the dpf is the fineness of each single fiber and satisfies the following formula: dpf = D/F, where D is denier and F is the number of filaments. The super hydrophilic quick-drying knitted fabric of regeneration dacron of this application forms good capillary effect between fibre and the fibre to it is stronger to lead the moisture, consequently has better hydrophilic, quick-drying performance, and hydrophilic, quick-drying effect lasting.
Description
Technical Field
The application relates to the technical field of spinning, in particular to a regenerated polyester super-hydrophilic quick-drying knitted fabric and a preparation method thereof.
Background
The knitted fabric is a fabric formed by bending yarns into loops by using a knitting needle and interlooping the yarns. The knitted fabric is widely applied to products such as clothes, home textiles and the like, and is popular with consumers.
Along with the increasing requirement of people on the comfort of wearing clothes, people can pay more attention to the moisture absorption and sweat releasing performance of the clothes when selecting close-fitting clothes. When a human body sweats, the clothes can absorb sweat, so that the clothes become wet to a certain degree, and the comfort of the human body is reduced in a humid environment.
At present, in order to improve the moisture absorption and sweat releasing performance of clothes, a water absorption finishing agent is adopted in the preparation process of the knitted fabric, so that the knitted fabric has the hydrophilic and quick-drying performance, and the moisture absorption and sweat releasing performance of the obtained clothes is improved. However, as the number of times the garment is washed increases, the effectiveness of the moisture absorption and sweat release properties of the garment gradually decreases.
Disclosure of Invention
In order to improve the durability of the hydrophilic and quick-drying performances of the knitted fabric, the application provides a regenerated polyester super-hydrophilic quick-drying knitted fabric and a preparation method thereof.
In a first aspect, the application provides a super hydrophilic rapid-curing cutback knitted fabric of regeneration dacron, adopts following technical scheme:
the regenerated polyester super-hydrophilic quick-drying knitted fabric is formed by weaving 42-52% of regenerated polyester and 48-58% of cross regenerated polyester through double-sided weft and padding through a water absorbing finishing agent according to the weight percentage;
the fineness of the regenerated terylene is 0.3-0.6 dpf;
the fineness of the cross regenerated terylene is 2.1-2.8 dpf;
the dpf is the fineness of each single fiber and satisfies the following formula:
and dpf is D/F, wherein D is denier, and F is the number of single fibers.
By adopting the technical scheme, under the above proportion, the regenerated polyester fiber with fine single fiber fineness and the cross regenerated polyester with fine and coarse single fiber fineness are adopted to carry out double-sided weft knitting to obtain the grey cloth, and the cloth surface condition is fine and the inner surface is coarse. On one hand, good capillary effect is formed among fibers in the grey cloth, and the effect of enhancing the moisture conduction is achieved. On the other hand, the cross regenerated polyester fiber is the polyester fiber with the special-shaped cross section, so that the moisture conductivity of the cross regenerated polyester fiber is superior to that of the common polyester fiber with the circular cross section, and the quick drying performance of the obtained fabric can be improved. Therefore, the fabric finally obtained after the gray fabric obtained by double-sided weft knitting is padded by the subsequent water-absorbing finishing agent has good hydrophilic and quick-drying performances. Meanwhile, due to the special structure of the grey cloth made of the specific terylene, the hydrophilicity and the quick drying performance of the fabric can be further enhanced. Therefore, the fabric obtained by the method has the effect of improving the durability of the hydrophilic and quick-drying performances of the fabric.
Preferably, the fineness of the regenerated terylene is 0.5dpf, and the fineness of the cross regenerated terylene is 2.1 dpf.
Preferably, the regenerated polyester super-hydrophilic quick-drying knitted fabric is 75D/144F regenerated polyester, and the cross regenerated polyester is 75D/36F cross regenerated polyester.
By adopting the technical scheme, the capillary effect formed between fibers of the gray fabric obtained by performing double-sided weft knitting on the 75D/144F regenerated terylene and the 75D/36F cross regenerated terylene is stronger, so that the obtained fabric has better hydrophilic and quick-drying performances and has lasting hydrophilic and quick-drying effects.
In a second aspect, the application provides a preparation method of a regenerated polyester super-hydrophilic quick-drying knitted fabric, which adopts the following technical scheme:
a preparation method of a regenerated polyester super-hydrophilic quick-drying knitted fabric comprises the following steps:
s1 weaving process: weaving the regenerated terylene and the cross regenerated terylene into grey cloth through double-sided weft;
s2 dyeing process: sequentially carrying out oil removal, dyeing and reduction cleaning on the grey cloth obtained in the step S1 to obtain dyed grey cloth;
s3 post-finishing process: sequentially dehydrating, scutching and padding the dyed grey cloth obtained in the step S2 with water absorption finishing agent aqueous solution to obtain the grey cloth with the liquid content of 60-75%, and then carrying out setting treatment to obtain the regenerated polyester super-hydrophilic quick-drying knitted fabric;
wherein the water-absorbing finishing agent in the water-absorbing finishing agent aqueous solution is SR-100T.
By adopting the technical scheme, the fabric finally obtained by the grey cloth obtained by weft knitting of the regenerated terylene and the cross regenerated terylene sequentially passes through the dyeing process and the post finishing process has better hydrophilic and quick-drying performance and lasting hydrophilic and quick-drying effects. Meanwhile, the cloth cover of the obtained fabric is soft in hand feeling, and the cloth cover has no oil stain, color pattern and the like.
Preferably, in the S1 weaving process, the length of the regenerated polyester yarn is 10-15cm/50N, and the length of the cross regenerated polyester yarn is 7-8.5 cm/50N.
By adopting the technical scheme, as the length of the regenerated terylene and the cross regenerated terylene is controlled within the range, the fibers in the grey cloth have certain tightness, thereby not only promoting the capillary effect between the fibers, but also enhancing the moisture conduction effect between the fibers. Meanwhile, the moisture conductivity between the fibers is also improved. Therefore, the obtained fabric has good hydrophilic and quick-drying performances and has lasting hydrophilic and quick-drying effects.
Preferably, in the S1 weaving process, the sequence of the dial needles is AB, the sequence of the cylinder needles is AB, rib alignment is adopted, and 2 needles are circulated in one cycle;
the triangular arrangement is six paths of circulation, and the threading is as follows: the 1 st and 4 th paths penetrate into the regenerated terylene as the face yarn and the connecting yarn, the dial has two needles, one needle is tucked and the other needle is floated, and the two needles of the needle cylinder are all looped; the No. 2, No. 3, No. 5 and No. 6 are penetrated into the crossed regenerated terylene as the reverse yarn, two needles of the dial are looped and floated, and two needles of the needle cylinder are floated.
By adopting the technical scheme, the back side yarns are provided with a plurality of interweaving points and are close to the skin, so that the sweat can be diffused and conducted quickly, and the human body can be kept comfortable. Meanwhile, due to the capillary effect formed by the front face yarns and the connecting yarns, sweat can be promoted to be rapidly transmitted to the outer surface of the fabric and evaporated, and therefore the obtained fabric has good hydrophilic and quick-drying performances and lasting hydrophilic and quick-drying effects.
Preferably, in the S1 weaving process, the threading tension of the regenerated terylene is 5-6cN, the threading tension of the cross regenerated terylene is 3-4cN, and the rotating speed of the weaving machine is 18 r/min.
By adopting the technical scheme, the yarn threading tension and the rotating speed which are more suitable are selected, so that on one hand, the frequency of yarn breaking and yarn splicing is reduced, and the excellent-quality cloth cover effect is obtained on the premise of not influencing the cloth cover quality and the productivity. On the other hand, the tightness between fibers is adjusted to a certain degree, so that the hydrophilic and quick-drying performances of the obtained fabric are further improved, and the hydrophilic and quick-drying effects are durable.
Preferably, in the S2 dyeing process, the oil removing step includes: soaking the gray fabric in the SI in an oil removing agent aqueous solution at the temperature of 80-95 ℃ to obtain the deoiled gray fabric;
wherein the degreasing agent in the degreasing agent aqueous solution is any one of degreasing agent SL-376bs, degreasing agent HT-173ECO bs and emulsification refining degreasing agent DO-1173.
By adopting the technical scheme, the oil removing agent has good removal effect on oil stains and stains on the surface of the grey cloth at the temperature of 80-95 ℃, so that the situations of color spots and the like on the cloth surface of the finally obtained fabric are reduced.
Preferably, in the S2 dyeing process, the temperature and time of the dyeing process of the grey cloth are controlled as follows:
firstly, heating from 50 ℃ to 70 ℃ at a heating rate of 1.5-2.0/min, then heating from 70 ℃ to 130-132 ℃ at a heating rate of 1.0-1.5 ℃/min, and keeping the temperature for 30-45 min; finally, the temperature is reduced from 130 ℃ to 132 ℃ to 50 ℃ at a cooling rate of 2.5-3.0 ℃/min.
By adopting the technical scheme, the temperature rise rate of the grey cloth in the dyeing process is controlled, so that on one hand, the phenomena of colored patterns, colored spots, silk hooking and the like in the re-dyeing process of the obtained grey cloth are reduced, and the cloth cover condition of the obtained fabric is improved. On the other hand, under the conditions of the temperature gradient and the temperature rise rate, the color fastness of the obtained fabric is also improved.
Preferably, in the S2 dyeing process, the reduction cleaning specifically comprises the following steps: sequentially soaking the dyed grey cloth in a reduction cleaning aqueous solution and a glacial acetic acid aqueous solution to obtain the reduction cleaned grey cloth;
wherein the reduction cleaning agent in the reduction cleaning aqueous solution is one or more of sodium hydrosulfite, reduction cleaning agent MC-08N (FA-004A) and reduction cleaning agent HT-RCbs.
By adopting the technical scheme, the optimized cleaning process is used, and the pH is properly controlled, so that the fabric has an excellent fastness effect.
In summary, the present application has the following beneficial effects:
1. according to the method, after the gray fabric obtained by double-sided weft knitting of the regenerated polyester fibers and the cross regenerated polyester fibers is padded by the water absorption finishing agent, the single fiber fineness of the regenerated polyester fibers is fine, the single fiber fineness of the cross regenerated polyester fibers is fine and coarse, the surface of the obtained gray fabric is fine, the inner side of the obtained gray fabric is coarse, capillary action is formed between the fibers in the gray fabric, the conduction of water is enhanced, and meanwhile, the cross regenerated polyester fibers are special-shaped cross-section polyester fibers with excellent moisture conductivity, so that the obtained fabric has good hydrophilic and quick-drying performances, and the hydrophilic and quick-drying effects are lasting;
2. according to the method, the tightness among the fibers in the grey cloth is adjusted by controlling the length of the regenerated terylene and the cross regenerated terylene, so that the capillary effect among the fibers is promoted, the moisture conduction function among the fibers is enhanced, and the moisture conductivity among the fibers is improved;
3. according to the method, the yarn threading modes of the regenerated terylene and the cross regenerated terylene are controlled, so that the reverse side yarns have more interlacing points, the diffusion and the conduction of water are promoted, meanwhile, the front side yarns and the connecting yarns can form excellent capillary effect, and the water is promoted to be conducted and evaporated, therefore, the obtained fabric has better hydrophilic and quick-drying performances, and the hydrophilic and quick-drying effects are lasting.
Detailed Description
The present application will be described in further detail with reference to examples.
The raw materials used in the examples of the present application are commercially available except for the following specific descriptions.
The method comprises the following steps of carrying out drip diffusion time, moisture residual rate, evaporation rate, washing and friction detection on the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in the embodiment of the application and the knitted fabric obtained in the comparative example, wherein the detection standards are as follows:
and (3) detecting the dripping water diffusion time: according to AATCC 79-2010.
And (3) detecting the residual rate of moisture: according to GB/T9995-1997.
And (3) detecting the evaporation rate: the first part of the evaluation of moisture absorption quick drying of textiles is as per GB/T2165.1-2008: single combinatorial testing approach.
Washing detection: according to JIS L0844: 2011A-2.
Detecting friction; according to JIS L0849-2004, method for testing color fastness to rubbing.
Examples
Example 1
The super-hydrophilic quick-drying knitted fabric is prepared by weaving 8.4kg of regenerated terylene and 11.6kg of cross regenerated terylene through a weaving process, and then sequentially performing dyeing process and finishing process treatment.
In the embodiment, the regenerated terylene is 75D/144F regenerated terylene, and the cross regenerated terylene is 75D/36F cross regenerated terylene;
the yarn feeding tension of the 75D/144F regenerated terylene is 5cN, and the yarn length is 10 cm/50N;
the yarn feeding tension of the 75D/36F cross regenerated terylene is 3cN, and the yarn length is 7 cm/50N.
The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric comprises the following steps:
s1 weaving process: the regenerated terylene and the cross regenerated terylene are woven and interwoven on a double-sided circular knitting machine by a 72-way Delile machine to form grey cloth.
Wherein, the adopted 72-way Delile machine has the machine number of 28G, the cylinder diameter of 30' and the rotating speed of 18 r/min.
The specific weaving process is as follows:
referring to table 1, the arrangement of dial needles is AB, the arrangement of cylinder needles is AB, rib alignment is adopted, and 2 needles are circulated one cycle.
The knitting mode is that six paths of knitting are adopted for one cycle, wherein the yarn threading mode is that the 1 st path and the 4 th path penetrate 75D/144F regenerated terylene as a front yarn and a connecting yarn, two needles of a needle disk are used, a needle is provided with tuck U, a needle is provided with floating thread-, two needles of a needle cylinder are used, and all the tuck U and the needle are formed into a loop reverse V; the 2 nd, 3 rd, 5 th and 6 th threads 75D/36F cross regenerated terylene as the reverse yarn, two needles of the dial are looped on one needle, one needle is floated, and the two needles of the needle cylinder are floated completely.
TABLE 1 triangular configuration Table
And (4) surface note: "U" indicates an upper tuck; "V" indicates upper looping; "Λ" indicates looping; "-" indicates a float line.
S2 dyeing process treatment:
s21 oil removal: adding water into a dyeing machine according to the bath ratio of the grey cloth to the degreasing agent aqueous solution of 1:10, then adding 1.5g/L degreasing agent SL-376bs and 1.5g/L penetrant FS-30 into the water, and stirring and mixing uniformly to obtain the degreasing agent aqueous solution. And (3) putting the grey cloth in the step (S1) into an oil removing agent aqueous solution at 80 ℃, removing oil for 20min, and then discharging the oil removing agent aqueous solution to obtain the deoiled grey cloth.
Wherein, the running speed of the grey cloth in S1 in the degreasing agent aqueous solution is 30-60S/r (30S/r in the embodiment), wherein S represents seconds, r represents circles, and S/r represents the time required for the grey cloth to rotate for one circle in the dye vat of the dyeing machine.
S22 staining: adding water into a dyeing machine according to the bath ratio of the grey cloth to the dye bath of 1:10, adding 0.5g/L of environment-friendly repairing agent, 0.8g/L of substitute acid, 0.3g/L of chelating agent, 1g/L of leveling agent and 1g/L of dispersing agent into water, stirring and mixing, heating to 50 ℃, adding 0.4% of disperse blue and 0.06% of disperse yellow, stirring and mixing to obtain the dye bath.
And (3) adding the deoiled grey cloth of S21 into a dye bath, adjusting the pH value of the dye bath to 4.0-5.0, and dyeing the grey cloth for 30min by adopting a one-bath dyeing method to obtain the dyed grey cloth.
Wherein, the running speed of the gray fabric without oil of S21 in the dye bath is 30-60S/r (30S/r in the embodiment).
In the embodiment of the application, the oil removing agent SL-376bs, the oil removing agent HT-173ECO bs and the emulsion refining oil removing agent DO-1173 have the same effect on the fabric. Therefore, in the embodiment of the application, only the degreasing agent SL-376bs is taken as an example for brief description, but the application of the degreasing agent HT-173ECO bs and the emulsification refining degreasing agent DO-1173 in the application is not influenced.
The gray fabric after oil removal of S21 is in a dye bath, and the temperature and time of the dye bath are controlled as follows:
heating from 50 ℃ to 70 ℃ at a heating rate of 1.5 ℃/min, then heating from 70 ℃ to 130 ℃ at a heating rate of 1.0 ℃/min, and keeping the temperature for 30 min; and finally, cooling from 130 ℃ to 50 ℃ at a cooling rate of 2.5-3.0 ℃/min, and discharging dye liquor to obtain the dyed grey cloth.
In the embodiment of the application, the temperature and time control of the gray fabric dyeing process preferably protected by the application have the same influence on the fabric. Therefore, in the embodiment of the present application, the dye bath is only briefly described by taking the above temperature and time control parameters as examples, but does not affect the application of the temperature and time of the dye bath in the preferred protection of the present application in the present application.
S23 reduction cleaning: adding water, 2.0g/L caustic soda flakes and 2.0g/L sodium hydrosulfite into a dyeing machine according to the bath ratio of the grey cloth to the reduction cleaning aqueous solution of 1:10, stirring and mixing uniformly to obtain the reduction cleaning aqueous solution with the pH of 10-12, heating the reduction cleaning aqueous solution to 80 ℃, cleaning the grey cloth dyed in S22 for 20min by using the reduction cleaning aqueous solution, and discharging the reduction cleaning aqueous solution to obtain the alkaline reduction cleaning grey cloth.
Adding water and 1.0g/L glacial acetic acid solution into a dyeing machine according to the bath ratio of the grey cloth to the glacial acetic acid solution of 1:10, and heating to 50 ℃ to obtain the glacial acetic acid solution with the pH value of 7. Adding the alkaline reduction-cleaned grey cloth into a glacial acetic acid aqueous solution at 50 ℃ for 10min, wherein the running speed of the grey cloth is 30-60s/r (30 s/r in the embodiment), and discharging the glacial acetic acid aqueous solution to obtain the reduction-cleaned grey cloth.
In the examples of the present application, the effect of the sodium hydrosulfite, the reducing detergent MC-08N (FA-004A) and the reducing detergent HT-RCbs on the fabric was the same. Therefore, in the examples of the present application, only the reducing detergent sodium hydrosulfite is taken as an example for brief description, but the application of the reducing detergent MC-08N (FA-004A) and the reducing detergent HT-RCbs in the present application is not affected.
S24 dehydration: and dehydrating the grey cloth subjected to reduction cleaning in the S23 for 3min to obtain a dehydrated grey cloth.
S25 scutching: and (4) conveying the dehydrated grey fabric in the step (S24) to an expanding machine for expanding, wherein the speed of the machine is 30m/min, and obtaining the expanded grey fabric, wherein the width of the grey fabric is 150 cm.
S3 post-processing:
s31, processing by adding an auxiliary agent: adding 100L of water and 1kg of water-absorbing finishing agent SR-100T into a binding groove of a forming machine, and stirring and mixing to obtain the water-absorbing finishing agent aqueous solution. And (3) dipping and binding the grey cloth subjected to the scutching in S25 in a binding groove of a forming machine to obtain the grey cloth subjected to the processing of the auxiliary agent. Wherein, the liquid carrying rate of the grey cloth after the processing of the addition agent is 65-70% (65% in the embodiment), the speed of the forming machine is 18-20m/min (18 m/min in the embodiment), and the pressure of the roller is 27N.
S32 sizing: and (3) conveying the grey cloth processed by the addition of the auxiliary agent in the S31 into an oven, and carrying out setting treatment for 2-3min (3 min in the embodiment) under the conditions that the temperature is 150 ℃, the vehicle speed is 18m/min and the overfeeding is 15% to obtain the stable regenerated polyester super-hydrophilic quick-drying knitted fabric.
Examples 2 to 3
The super-hydrophilic quick-drying knitted fabric for the regenerated polyester is different from the example 1 in that the raw material components and the corresponding weights are shown in the following table.
The regenerated polyester super-hydrophilic quick-drying knitted fabrics obtained in examples 1 to 3 were subjected to drip diffusion time, moisture residual rate, evaporation rate, washing and rubbing tests, and the test results are shown in the following table.
Analysis of the data of the performance test results in the table shows that the drip diffusion time before washing is as low as 0.5-0.7s, and the drip diffusion time after 5 times of washing is as low as 0.5-0.6s for the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in the embodiments 1-3 of the present application; the residual rate of water before washing and after washing for 10 times is 0 percent; the evaporation rate before washing is as high as 0.25-0.29g/h, and the evaporation rate after washing for 5 times is as high as 0.27-0.3 g/h; washing and friction levels are up to 4-5 levels. Therefore, the regenerated polyester super-hydrophilic quick-drying knitted fabric has good hydrophilic and quick-drying performances, excellent washing and rubbing fastness and lasting hydrophilic and quick-drying effects.
Particularly, the dropping water diffusion time of the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in the example 2 after 5 times of washing is as low as 0.5 s; the evaporation rate before washing is as high as 0.29g/h, and the evaporation rate after washing for 5 times is as high as 0.3 g/h. Therefore, the fineness of the regenerated polyester is 0.5dpf, specifically 75D/144F, in the total raw materials of the regenerated polyester super-hydrophilic quick-drying knitted fabric; the fineness of the cross regenerated terylene is 2.1dpf, in particular to 75D/36F cross regenerated terylene, which not only can improve the hydrophilicity and the quick drying performance of the obtained fabric, but also can prolong the hydrophilicity and the quick drying effect of the fabric.
Examples 4 to 11
A super-hydrophilic quick-drying knitted fabric made of regenerated polyester is different from the knitted fabric made of the regenerated polyester in example 2 in that the regenerated polyester and the cross regenerated polyester are different in specification and dpf and the regenerated polyester and the cross regenerated polyester are the same as the knitted fabric made of the regenerated polyester and the cross regenerated polyester in example 2.
The specifications and dpf of the regenerated polyester and the cross-shaped regenerated polyester are shown in the following table.
The regenerated polyester super-hydrophilic quick-drying knitted fabrics obtained in examples 4 to 11 were subjected to drip diffusion time, moisture residual rate, evaporation rate, washing and rubbing tests, and the test results are shown in the following table.
Analysis of the data of the performance test results in the table shows that the drip diffusion time before washing is as low as 0.6-0.9s, and the drip diffusion time after 5 times of washing is as low as 0.5-1s for the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in the embodiments 4-11 of the present application; the residual rate of water before washing is as low as 0-1%, and the residual rate of water after washing for 10 times is as low as 0-2%; the evaporation rate before washing is as high as 0.24-0.29g/h, and the evaporation rate after washing for 5 times is as high as 0.26-0.3 g/h. Therefore, when the fineness of the regenerated polyester is 0.3-0.6dpf and the fineness of the cross regenerated polyester is 2.1-2.8dpf in the total raw materials of the regenerated polyester super-hydrophilic quick-drying knitted fabric, the obtained regenerated polyester super-hydrophilic quick-drying knitted fabric has good hydrophilic and quick-drying performances and lasting hydrophilic and quick-drying effects.
Examples 12 to 14
The super-hydrophilic quick-drying knitted fabric made of the regenerated polyester is different from the fabric made in the embodiment 2 in that in the weaving process of S1, the fabric is the same as the fabric made in the embodiment 2 except that the yarn feeding tension of the regenerated polyester and the cross regenerated polyester are different.
The yarn feeding tension of the regenerated polyester and the cross regenerated polyester are shown in the following table.
The regenerated polyester super-hydrophilic quick-drying knitted fabrics obtained in examples 12 to 14 were subjected to the drip diffusion time, the moisture residual rate, the evaporation rate, washing and the friction test, and the test results are shown in the following table.
Analysis of the data of the performance test results in the table shows that the drip diffusion time before washing is as low as 0.5-0.6s, and the drip diffusion time after 5 times of washing is as low as 0.5s for the regenerated polyester super-hydrophilic quick-drying knitted fabrics obtained in examples 2 and 12 of the present application; the residual rate of water before and after washing is 0 percent; the evaporation rate before washing is as high as 0.29-0.30g/h, and the evaporation rate after washing for 5 times is as high as 0.3 g/h.
In the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in examples 13 to 14 of the application, the drip diffusion time before washing is 0.6 to 0.7s, and the drip diffusion time after 5 times of washing is 0.6 to 0.7 s; the residual rate of water before washing is 0%, and the residual rate of water after washing is 0-1%; the evaporation rate before washing is 0.24-0.25g/h, and the evaporation rate after washing for 5 times is 0.25-0.26 g/h.
Compared with the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in example 2, the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in examples 13 to 14 has the advantages that the dripping water diffusion time before washing is relatively increased by 0 to 16.67%, and the dripping water diffusion time after 5 times of washing is relatively increased by 20 to 40%; the evaporation rate before washing is relatively reduced by 13.79-17.24%, and the evaporation rate after 5 times of washing is relatively reduced by 13.33-16.67%.
As can be seen from the examples 2, 12, 13, and 14 and from the above table, in the weaving process of the regenerated polyester super-hydrophilic quick-drying knitted fabric, although the threading tension of the regenerated polyester is 4cN, the threading tension of the cross regenerated polyester is 2cN, or the threading tension of the regenerated polyester is 7cN, and the threading tension of the cross regenerated polyester is 6cN, the obtained fabric has good hydrophilic and quick-drying properties. However, when the threading tension of the regenerated terylene is controlled to be 5-6cN and the threading tension of the cross regenerated terylene is controlled to be 3-4cN, the hydrophilicity and the quick-drying performance of the obtained fabric can be improved, and the hydrophilicity and the quick-drying effect of the fabric can be prolonged.
Examples 15 to 17
The super-hydrophilic quick-drying knitted fabric made of the regenerated polyester is different from the fabric made in the embodiment 2 in that the weaving process of S1 is the same as the fabric made in the embodiment 2 except that the threads of the regenerated polyester and the crossed regenerated polyester are different in length.
The yarn feeding tension of the regenerated polyester and the cross regenerated polyester are shown in the following table.
The regenerated polyester super-hydrophilic quick-drying knitted fabrics obtained in examples 15 to 17 were subjected to drip diffusion time, moisture residual rate, evaporation rate, washing and rubbing tests, and the test results are shown in the following table.
Analysis of the data of the performance test results in the table shows that the drip diffusion time before washing is as low as 0.5-0.6s, and the drip diffusion time after 5 times of washing is as low as 0.5s for the regenerated polyester super-hydrophilic quick-drying knitted fabrics obtained in the examples 2 and 15 of the present application; the residual rate of water before and after washing is 0 percent; the evaporation rate before washing is as high as 0.29-0.30g/h, and the evaporation rate after washing for 5 times is as high as 0.3 g/h.
In the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in the embodiment 16-17, the dripping diffusion time before washing is 0.8-0.9s, and the dripping diffusion time after washing for 5 times is 0.6-0.7 s; the residual rate of water before washing is 0%, and the residual rate of water after washing is 0-1%; the evaporation rate before washing is 0.24-0.25g/h, and the evaporation rate after washing for 5 times is 0.25-0.26 g/h.
Compared with the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in example 2, the regenerated polyester super-hydrophilic quick-drying knitted fabric obtained in examples 16 to 17 has the advantages that the dripping water diffusion time before washing is increased by 33.33 to 50% relatively, and the dripping water diffusion time after 5 times of washing is increased by 20 to 40% relatively; the evaporation rate before washing is relatively reduced by 13.79-17.24%, and the evaporation rate after 5 times of washing is relatively reduced by 13.33-16.7%.
According to the example 2, the example 15, the example 16 and the example 17 and the combination of the above table, in the weaving process of the regenerated polyester super-hydrophilic quick-drying knitted fabric, the length of the regenerated polyester thread is controlled to be 10-15cm/50N, and the length of the cross regenerated polyester thread is controlled to be 7-8.5cm/50N, so that the hydrophilic and quick-drying performances of the obtained fabric can be improved, and the hydrophilic and quick-drying effects of the fabric can be prolonged.
Comparative example
Comparative examples 1 to 4
A knitted fabric, which is different from example 2 in that the same as example 2 except that the dpf of the regenerated polyester and the cross regenerated polyester are different.
The dpf and specific specifications of the regenerated polyester and the cross-shaped regenerated polyester are shown in the following table.
The knitted fabrics obtained in comparative examples 1 to 4 were subjected to drip diffusion time, moisture residual rate, evaporation rate, washing, and rubbing tests, and the test results are shown in the following table.
Analysis of the data of the performance test results in the table shows that the drip diffusion time of the knitted fabrics obtained in the comparative examples 1 to 4 before washing is as high as 1 to 1.3s, and the drip diffusion time after 5 times of washing is as high as 1 to 1.2 s; the residual rate of water before washing is 1-3%, and the residual rate of water after washing is 1-2%; the evaporation rate before washing is as low as 0.17-0.21g/h, and the evaporation rate after washing for 5 times is as low as 0.16-0.22 g/h.
Compared with the knitted fabrics obtained in comparative examples 1-4, the regenerated terylene super-hydrophilic quick-drying knitted fabric obtained in example 2 has the advantages that the drip diffusion time before washing is relatively reduced by 40-53.85%, and the drip diffusion time after 5 times of washing is relatively reduced by 50-58.33%; the residual rate of water before and after washing is relatively reduced by 100 percent; the evaporation rate before washing is relatively improved by 45-70.59%, and the evaporation rate after 5 times of washing is relatively reduced by 36.36-100%. Thereby indicating. The regenerated polyester super-hydrophilic quick-drying knitted fabric is formed by weaving 42-52% of regenerated polyester and 48-58% of cross regenerated polyester through double-sided weft and padding through a water absorbing finishing agent according to the weight percentage of raw materials; wherein the fineness of the regenerated terylene is 0.3-0.6 dpf; the cross regenerated terylene has the fineness of 2.1-2.8dpf, has better hydrophilic and quick-drying performance and lasting hydrophilic and quick-drying effect.
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.
Claims (10)
1. The super-hydrophilic quick-drying knitted fabric is characterized by being formed by weaving 42-52% of regenerated polyester and 48-58% of cross-shaped regenerated polyester through double-sided weft and padding through a water-absorbing finishing agent according to weight percentage;
the fineness of the regenerated terylene is 0.3-0.6 dpf;
the fineness of the cross regenerated terylene is 2.1-2.8 dpf;
the dpf is the fineness of each single fiber and satisfies the following formula:
dpf = D/F, where D is denier and F is the number of filaments.
2. The regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 1, characterized in that: the fineness of the regenerated terylene is 0.5dpf, and the fineness of the cross regenerated terylene is 2.1 dpf.
3. The regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 2, characterized in that: the regenerated terylene is 75D/144F regenerated terylene, and the cross regenerated terylene is 75D/36F cross regenerated terylene.
4. The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric of claims 1-3 is characterized by comprising the following steps: the method comprises the following steps:
s1 weaving process: weaving the regenerated terylene and the cross regenerated terylene into grey cloth through double-sided weft;
s2 dyeing process: sequentially carrying out oil removal, dyeing and reduction cleaning on the grey cloth obtained in the step S1 to obtain dyed grey cloth;
s3 post-finishing process: and (3) sequentially dehydrating, scutching and padding the dyed grey cloth obtained in the step (S2) with a water-absorbing finishing agent aqueous solution to obtain the grey cloth with the liquid content of 60-75%, and then carrying out setting treatment to obtain the regenerated polyester super-hydrophilic quick-drying knitted fabric.
5. The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 3, characterized by comprising the following steps: in the S1 weaving process, the length of the regenerated polyester yarn is 10-15cm/50N, and the length of the cross regenerated polyester yarn is 7-8.5 cm/50N.
6. The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 4, characterized by comprising the following steps: in the S1 weaving process, the sequence of dial needles is AB, the sequence of cylinder needles is AB, rib alignment is adopted, and 2 needles circulate in one cycle;
the triangular arrangement is six paths of circulation, and the threading is as follows: the 1 st and 4 th paths penetrate into the regenerated terylene as the face yarn and the connecting yarn, the dial has two needles, one needle is tucked and the other needle is floated, and the two needles of the needle cylinder are all looped; the No. 2, No. 3, No. 5 and No. 6 are penetrated into the crossed regenerated terylene as the reverse yarn, two needles of the dial are looped and floated, and two needles of the needle cylinder are floated.
7. The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 4, characterized by comprising the following steps: in the S1 weaving process, the threading tension of the regenerated terylene is 5-6cN, and the threading tension of the cross regenerated terylene is 3-4 cN.
8. The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 4, characterized by comprising the following steps: in the S2 dyeing process, the specific steps of deoiling are as follows: soaking the gray fabric in the SI in an oil removing agent aqueous solution at the temperature of 80-95 ℃ to obtain the deoiled gray fabric;
wherein the degreasing agent in the degreasing agent aqueous solution is any one of degreasing agent SL-376bs, degreasing agent HT-173ECO bs and emulsification refining degreasing agent DO-1173.
9. The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 4, characterized by comprising the following steps: in the S2 dyeing process, the temperature and time of the grey cloth dyeing process are controlled as follows:
firstly, heating from 50 ℃ to 70 ℃ at a heating rate of 1.5-2.0/min, then heating from 70 ℃ to 130-132 ℃ at a heating rate of 1.0-1.5 ℃/min, and keeping the temperature for 30-45 min; finally, the temperature is reduced from 130 ℃ to 132 ℃ to 50 ℃ at a cooling rate of 2.5-3.0 ℃/min.
10. The preparation method of the regenerated polyester super-hydrophilic quick-drying knitted fabric according to claim 4, characterized by comprising the following steps: in the S2 dyeing process, the specific steps of reduction cleaning are as follows: sequentially soaking the dyed grey cloth in a reduction cleaning aqueous solution and a glacial acetic acid aqueous solution to obtain the reduction cleaned grey cloth;
wherein the reduction cleaning agent in the reduction cleaning aqueous solution is any one of sodium hydrosulfite, reduction cleaning agent MC-08N (FA-004A) and reduction cleaning agent HT-RCbs.
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Application publication date: 20220415 |