CN115961472A - Method for coating and modifying gelatin/titanium dioxide super-hydrophilic polyester fabric - Google Patents
Method for coating and modifying gelatin/titanium dioxide super-hydrophilic polyester fabric Download PDFInfo
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- CN115961472A CN115961472A CN202211245922.XA CN202211245922A CN115961472A CN 115961472 A CN115961472 A CN 115961472A CN 202211245922 A CN202211245922 A CN 202211245922A CN 115961472 A CN115961472 A CN 115961472A
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Abstract
The invention discloses a method for coating and modifying gelatin/titanium dioxide super-hydrophilic polyester fabric, and belongs to the technical field of polyester surface modification and post-finishing. The invention is based on TiO 2 The hydrophilic modification of the gelatin compound pair polyester fabric comprises the following steps: putting the polyester fabric after refining treatment into TiO 2 And (3) carrying out secondary soaking and secondary rolling on the gelatin compound dispersion liquid at room temperature, washing and drying to obtain the hydrophilic modified polyester fabric. TiO adopted in the invention 2 Gelatin does not contain irritant chemicals, the modification method does not involve high-temperature and high-pressure conditions, the reaction time is short, the hydrophilic modification effect is obvious, the modification mode is mild, and the generated wastewater is easy to recycle.
Description
Technical Field
The invention relates to a method for coating and modifying gelatin/titanium dioxide super-hydrophilic polyester fabric, and belongs to the technical field of polyester surface modification and post-finishing.
Background
The yield of terylene, one of the most used chemical fibers in the world at present, accounts for more than eight times of the total production of the chemical fibers because terylene has many excellent characteristics, such as high strength at break, high modulus, stretch resistance, wrinkle resistance, shape retention, wear resistance, wash and wear resistance and the like. However, because only two ends of the polyester molecular chain contain hydroxyl groups, no other hydrophilic groups exist, the polyester molecular chain is lack of hydrophilic groups, and the crystallinity and the phase extraction degree are very high, the moisture regain of the polyester is only 0.4%, and the hydrophilicity, the air permeability and the antistatic property of the polyester fabric are poor, so that the performances of polyester clothes and the like are influenced.
Currently, polyester fabrics are usually modified by surface modification techniques such as surface grafting, oxidation treatment with an oxidant, alkali weight reduction treatment, enzymatic hydrolysis, chemical treatment, plasma, coating with a hydrophilic finishing agent, and the like. The modification method for the polyester fabric has the following technical defects: relates to high-energy input and irritant chemicals, is not environment-friendly, has complicated treatment process and unstable firmness, and damages the mechanical property and hand feeling of the fabric. For example: the ultraviolet grafted titanium dioxide and the polyester fabric treated by the plasma have timeliness, and the polyester fabric can recover hydrophobicity within a period of time (one week to one month); the enzyme has mild technical action conditions for treating the polyester fabric and weak modification effect.
Disclosure of Invention
The technical problem is as follows:
in the prior art, the ultraviolet grafted titanium dioxide is adopted to modify the polyester hydrophilicity, so that the cost is higher due to high energy input, and the modification effect has timeliness (the hydrophobicity can be recovered after a period of time); the hydrophilic modification effect of the polyester by adopting the biological enzyme is poor; the problem that the existing hydrophilic agent coating layer is weak and is not firmly adhered to the polyester fabric is solved.
The technical scheme is as follows:
in order to solve at least one of the above problems, the present invention employs TiO 2 The gelatin and the compound solution are used for coating and modifying the surface of the polyester fabric, so that the hydrophilic modification of the polyester fabric is greatly improved.
It is a first object of the present invention to provide TiO 2 The method for modifying the gelatin compound pair polyester fabric comprises the following steps:
putting the polyester fabric after refining treatment into TiO 2 And (3) carrying out secondary soaking and secondary rolling on the gelatin compound dispersion liquid at room temperature, washing and drying to obtain the hydrophilic modified polyester fabric.
In one embodiment of the present invention, the TiO is 2 The gelatin compound dispersion liquid comprises TiO 2 Nanoparticles, gelatin and deionized water.
In one embodiment of the present invention, the TiO is 2 The concentration of gelatin in the gelatin compound dispersion liquid is 1-10 g/L. Specifically, 5g/L is preferable.
In one embodiment of the present invention, the TiO is 2 TiO in gelatin compound dispersion liquid 2 The concentration of the nano particles is 1 to 5g/L. Specifically, 4g/L is preferable.
In one embodiment of the present invention, the TiO is 2 The pH value of the gelatin compound dispersion liquid is neutral.
In one embodiment of the invention, the two-dipping and two-rolling is to dip the polyester fabric in TiO 2 And rolling the gelatin compound dispersion liquid for 10min by a padder for one time, wherein the rolling residual rate is 90 percent, and the rolling residual rate is twice.
In one embodiment of the present invention, washing means washing the padded polyester twice with deionized water.
In one embodiment of the invention, the drying is oven drying at 60 ℃.
In one embodiment of the present invention, the refining treatment is to remove residual size and impurities on the surface of the fabric.
In one embodiment of the present invention, the refining process comprises the following specific operations:
placing the terylene fabric in a solution of soap chips and sodium carbonate for desizing and scouring; and (5) cleaning, drying and balancing in a constant temperature and humidity box to obtain the polyester fabric subjected to refining treatment.
In one embodiment of the invention, the concentration of the soap flake treatment in the refining treatment is 4-6 g/L, and the concentration of the sodium carbonate is 3-5 g/L; more preferably: the soap flake concentration is 5g/L, and the sodium carbonate concentration is 4g/L.
In one embodiment of the present invention, the condition of desizing and scouring in the refining treatment is as follows: treating at 95-100 ℃ for 25-35 min, wherein the bath ratio is 1; more preferably: treating at 98 ℃ for 30min, wherein the bath ratio is 1.
In one embodiment of the invention, the cleaning in the refining treatment is water cleaning, and the drying is drying in an oven at 80 ℃; the conditions of constant temperature and constant humidity are 25 +/-1 ℃,65 +/-2 percent and the balance time is not less than 24 hours.
In one embodiment of the present invention, the preparation of the dispersion specifically comprises:
soaking gelatin in deionized water, heating and dissolving to obtain a gelatin solution; adding TiO into the mixture 2 Mixing with gelatin solution, fixing volume, and ultrasonic dispersing.
In one embodiment of the present invention, the conditions of the ultrasonic dispersion are: ultrasonic treatment is carried out for 15-30 min under the conditions that the temperature is 25-32 ℃ and the power is 50-53 Hz; more preferably: ultrasonic treatment is carried out for 30min at the temperature of 25-32 ℃ and the power of 53 Hz.
The second purpose of the invention is to obtain the hydrophilic modified polyester fabric by the method.
A third object of the invention is the use of the method according to the invention in the textile field.
The fourth purpose of the invention is to provide a textile prepared by adopting the hydrophilic modified polyester fabric.
In one embodiment of the invention, the textile comprises a household textile and an industrial textile.
Has the advantages that:
(1) TiO adopted in the invention 2 Gelatin does not contain irritant chemicals, the modification method does not involve high-temperature and high-pressure conditions, the reaction time is short, the hydrophilic modification effect is obvious, the modification mode is mild, and the generated wastewater is easy to recycle.
(2) TiO adopted in the invention 2 The gelatin contains more hydrophilic groups and has certain viscosity, and the gelatin is attached to the surface of the polyester fabric through coating, so that the surface of the polyester fabric is attached with hydrophilic groups such as hydroxyl groups, and hydrogen bonds are formed. The invention achieves excellent hydrophilic modification effect on the premise of ensuring that the self advantage performance of the terylene is not influenced.
Compared with the contact angle of 100.6 degrees, the contact angle of the hydrophilic modified polyester fabric obtained by the invention is reduced to 0 degree after modification, and the reduction amplitude reaches 100 percent.
Drawings
FIG. 1 shows TiO in example 1 2 Scanning electron microscope images of the dacron before and after treatment of the gelatin compound dispersion liquid, wherein the image (a) is TiO 2 The terylene fabric before the treatment of the gelatin compound dispersion liquid; FIG. B-TiO 2 The dacron fabric is treated by the gelatin compound dispersion liquid.
FIG. 2 shows TiO in example 1 2 ATR-FTIR spectrogram of dacron fabric before and after treatment of gelatin compound dispersion liquid, wherein, tiO is 2 The polyester fabric before being treated by the gelatin compound dispersion liquid is marked as unmodified polyester and TiO 2 The polyester fabric treated by the gelatin compound dispersion liquid is marked as TiO 2 Gelatin modified terylene.
FIG. 3 shows TiO in example 1 2 XRD patterns of the polyester fabric before and after treatment of the gelatin compound dispersion liquid.
FIG. 4 shows TiO in example 1 2 Comparing water contact angles of the polyester fabrics before and after treatment of the gelatin compound dispersion liquid; wherein the left figure is TiO 2 The terylene fabric before the treatment of the gelatin compound dispersion liquid; the right figure is TiO 2 The dacron fabric is treated by the gelatin compound dispersion liquid.
FIG. 5 shows unrefined TiO of example 1 2 Mechanical property diagrams of terylene fabrics (refined and modified TiO 2/gelatin) before and after treatment of gelatin compound dispersion liquid; wherein A is the breaking strength; b is elongation at break.
Detailed Description
The technical solution of the present invention is explained below with reference to the embodiments of the present invention.
The fabric raw materials adopted in the examples and the comparative examples are as follows: 100 percent of polyester filament yarn plain fabric, the warp and weft yarns are 2.22tex, the warp and weft densities are 880/680 pieces/(10 cm) respectively, and the surface density is 56g/m 2 。
The test method comprises the following steps:
1. method for testing water contact angle of fabric:
and (3) balancing the polyester fabric to be tested in a constant temperature and humidity box (25 +/-1 ℃,65 +/-2%) for at least 24 hours, and testing by adopting a DSA 25 contact angle measuring instrument to obtain a corresponding water contact angle. Cutting 5 different positions of the terylene fabric to be detected by scissors for sampling, adhering a double-sided adhesive tape on a glass slide, dripping water drops (10 mu L) at a position 10mm away from the cloth surface, displaying and observing a contact angle through an instrument, photographing and storing, and averaging the results to obtain the average value of the water contact angle.
2. And (3) observing surface microscopic morphology:
after the surface of the polyester fabric to be detected is plated with gold, an SU 510 scanning electron microscope is used for observing the change of the appearance of the surface of the polyester fabric to be detected, the accelerating voltage of the electron microscope is Wie5.0kV, and the magnification is 500 times.
3. The surface chemical structure of the polyester fabric is characterized:
carrying out total reflection infrared spectrum test on the surface of the polyester fabric to be tested by adopting a Nicolet is 10 type Fourier infrared spectrometer, wherein the scanning range is 4000cm -1 ～500cm -1 The number of scans was 32.
4. The crystallinity of the polyester fabric is characterized by:
and (3) carrying out X-ray test on the surface of the polyester fabric to be tested by adopting a D2 PHASER type X-ray diffractometer, wherein the scanning angle is 5-50 degrees.
5. The mechanical property characterization of the polyester fabric comprises the following steps:
and (3) performing a tensile fracture test on the polyester fabric to be tested by adopting an HD026NS-200 type multifunctional electronic fabric strength tester, wherein the test gauge is 50mm, and the tensile speed is 100mm/min.
Example 1
A method for coating and modifying a polyester fabric based on titanium dioxide and gelatin compounding comprises the following steps:
(1) Refining treatment of the polyester fabric:
placing the polyester fabric into a solution of 5g/L soap flakes and 4g/L sodium carbonate according to a bath ratio of 1; then washing with water, drying at 80 ℃, and finally balancing the polyester fabric in a constant temperature and humidity box (25 +/-1 ℃,65 +/-2%) for at least 24 hours to obtain the polyester fabric subjected to refining treatment;
(2) Gelatin dissolution treatment:
and (3) putting the gelatin into 10mL of deionized water for soaking for 10min, and heating in water at 60 ℃ until the gelatin is dissolved to obtain a gelatin solution.
(3) Modification treatment:
adding TiO into the mixture 2 Mixing the nano particles, gelatin solution and deionized water, and performing ultrasonic dispersion to obtain TiO 2 Gelatin compound dispersion liquid; the concentration of gelatin in the dispersion was 5g/L, tiO 2 The concentration of the nanoparticles was 4g/L.
Cutting the refined polyester fabric into squares, wherein each piece of the polyester fabric is 0.54g in weight; impregnating it in TiO 2 And in the gelatin compound dispersion liquid, carrying out two-dipping and two-rolling (each dipping time is 10min, and the rolling residual rate is 90%) under the condition that the pH value is neutral, washing and drying to obtain the hydrophilic modified polyester fabric.
FIG. 1 shows TiO in example 1 2 Scanning electron microscope images of the dacron before and after treatment of the gelatin compound dispersion liquid, wherein the image (a) is TiO 2 The polyester fabric before being treated by the gelatin compound dispersion liquid; FIG. B-TiO 2 The dacron fabric is treated by the gelatin compound dispersion liquid. As can be seen, tiO in FIG. (a) 2 The surface of the polyester fabric is very smooth before the treatment of the gelatin compound dispersion liquid; and TiO in diagram (b) 2 The surface of the polyester fabric treated by the gelatin compound dispersion liquid has no obvious particle adhesion, because the gelatin can be used as a binder to connect TiO 2 Nano particles and terylene fabric, and a firm layer of gelatin-TiO is formed on the surface of the terylene fabric 2 And the film enables a close fit structure to be formed between the coating layer and the polyester fabric.
FIG. 2 shows TiO in example 1 2 ATR-FTIR spectrograms of the polyester fabrics before and after treatment of the gelatin compound dispersion liquid. As can be seen from FIG. 2, tiO 2 Before and after the treatment of the gelatin compound dispersion liquid, the ATR-FTIR spectrogram of the polyester fabric has no obvious change and no new peak; the modification method provided by the invention is proved to only modify the surface of the polyester fabric, and not to change the internal structure of the polyester fabric and influence the mechanical properties of the polyester fabric. Wherein, 769-659 cm -1 The absorption peak is derived from the stretching vibration of an alcohol bond O-H; 1320-1210 cm -1 、1140～1070cm -1 The absorption peak at (A) is derived from stretching vibration of the C-O bond in the ester bond; 1750 to 1710cm -1 The peak of absorption is related to the stretching vibration of C = O in the ester bond; 3000-2850 cm -1 The absorption peak is derived from the C-H stretching vibration in the alkane; 3650-3700 cm -1 The absorption peak at (A) is related to the stretching vibration of N-H in the amino group. Observed through TiO 2 The intensity of characteristic peaks of groups such as C = O, C-H, N-H and the like of the whole infrared of the polyester fabric treated by the gelatin compound dispersion liquid is enhanced, which proves that TiO 2 After the gelatin compound dispersion liquid is treated, the gelatin and the TiO are added 2 The polyester fiber is attached to the surface of polyester fabric, and groups such as C = O, C-H, N-H, O-H and the like in ester bonds are added.
FIG. 3 shows TiO in example 1 2 XRD patterns of the polyester fabrics before and after treatment of the gelatin compound dispersion liquid. As can be seen from FIG. 3, the reaction is carried out via TiO 2 After the treatment of the/gelatin compound dispersion liquid, the crystallinity of the polyester fabric is remarkably improved compared with that before the treatment, the main diffraction peaks of the unmodified polyester fabric are 2 theta =17.7 degrees, 22.7 degrees and 25.4 degrees, the main diffraction peaks of the modified polyester fabric are 2 theta =16.1 degrees, 17.4 degrees, 22.4 degrees and 25.2 degrees, the crystallinity of the modified polyester fabric is 51.02 percent calculated by MDI Jade 6.0 software, and TiO is subjected to TiO 6 Jade 6.0 2 The crystallinity of the polyester fabric treated by the gelatin-mixed dispersion liquid is 71 percent, which is increased by 19.98 percent.
FIG. 4 shows TiO in example 1 2 Comparing the water contact angles of the polyester fabrics before and after the treatment of the gelatin compound dispersion liquid; wherein (a) is TiO 2 The terylene fabric before the treatment of the gelatin compound dispersion liquid; FIG. b shows TiO 2 The dacron fabric is treated by the gelatin compound dispersion liquid. As can be seen from FIG. 4, tiO 2 After the gelatin compound dispersion liquid is treated, the water contact angle is obviously reduced, and the hydrophilicity is obviously improved as proved: the water contact angle in 60s is reduced from 100.6 degrees before modification to 0 degree after modification, and the technical effect of converting the hydrophobic polyester fabric into the super-hydrophilic polyester fabric is realized.
FIG. 5 shows TiO in example 1 2 And comparing the breaking strength and the breaking elongation of the polyester fabric before and after the treatment of the gelatin compound dispersion liquid. As can be seen from FIG. 5, tiO 2 Compared with unrefined polyester fabrics, the breaking strength of the fabrics treated by the gelatin compound dispersion liquid is reduced, but still higher than that of the refined polyester fabrics, the breaking strength of more than 400N can be still maintained; tiO2 2 Compared with unrefined polyester fabrics, the elongation at break of the fabrics treated by the gelatin compound dispersion liquid is reduced, but the elongation at break of the fabrics treated by the gelatin compound dispersion liquid is still higher than that of the refined polyester fabrics by 36 percent, the physical and mechanical properties are equivalent to those of other alkali treatment methods, and the effect of the functional layer is better.
Example 2 Effect of different gelatin concentrations on the hydrophilic modification Effect
The gelatin concentrations in step (2) of example 1 were adjusted to 1g/L, 2g/L, 3g/L, 4g/L, 5g/L, 6g/L, 7g/L, 8g/L, 9g/L and 10g/L, and the others were kept the same as in example 1.
TABLE 1 results of 60s Water contact Angle test for examples 1-2
| Gelatin concentration (g/L) | 1 | 2 | 3 | 4 | 5 |
| Mean value of water contact angle (DEG) of 60s | 11.48 | 15.46 | 14.44 | 14.68 | 5.78 |
| Gelatin concentration (g/L) | 6 | 7 | 8 | 9 | 10 |
| Mean value of water contact angle (DEG) of 60s | 6.5 | 7.84 | 8.72 | 12.75 | 14.18 |
As can be seen from Table 1, as the gelatin concentration increases, the 60s water contact angle generally shows a trend of increasing after decreasing, the gelatin concentration reaches the minimum value when the gelatin concentration is 5g/L, the average value of the water contact angle is 5.78 degrees, and the polyester is super-hydrophilic modified polyester.
Example 3 different TiO 2 Influence of concentration of (2) on hydrophilic modification Effect
Preparation of TiO in step (2) of example 1 2 The concentration of (B) was 1g/L, 2g/L, 3g/L, 4g/L, 5g/L, and others were the same as in example 1.
Table 2 results of the 60s water contact angle test for examples 1 and 3
| Gelatin concentration (g/L) | 1 | 2 | 3 | 4 | 5 |
| Average value of water contact angle of 60s (°) | 10.34 | 11.2 | 14.16 | 5.78 | 12.88 |
As can be seen from Table 2, with TiO 2 The 60s water contact angle of the prepared hydrophilic modified polyester fabric shows the trend of increasing, then decreasing and then increasing, and the concentration of the hydrophilic modified polyester fabric is increased in TiO 2 At a concentration of 4g/L, the 60s water contact angle averaged 5.78 deg..
Example 4 stability test of hydrophilic modification Effect (Long-term storage)
After the hydrophilic modified polyester fabric prepared in example 1 was stored at room temperature for 60 days, a water contact angle test was performed for 60 s.
Table 3 results of 60s water contact angle test of hydrophilically modified polyester fabrics manufactured in examples 1 and 4
| Modified polyester fabric | 60s (example 1) | 60 days (example 4) |
| Average value of water contact angle of 60s (°) | 5.78 | 19.4 |
As can be seen from Table 3, the TiO compound was added 2 The gelatin-modified polyester fabric (the super-hydrophilic modified polyester fabric prepared in example 1) maintained a water contact angle of 19.4 ° at 60s after being stored at room temperature for 60 days. Although the water contact angle is increased compared with that of the newly prepared hydrophilic modified polyester fabric, the hydrophilic effect is still better; compared with the hydrophobic property recovery of the polyester fabric modified by the plasma for 7 days, the polyester fabric modified by the TiO modified by the plasma modified by the TiO modified by the modified polyester resin has the advantages of good hydrophobicity 2 The gelatin modified polyester fabric has the advantages of stable hydrophilic effect and aging.
Example 5 stability test of hydrophilic modification Effect (multiple Water washes)
After the hydrophilic modified polyester fabric prepared in example 1 was washed with water and dried repeatedly for 10 times, a 60s water contact angle test was performed.
Table 4 test results of 60s water contact angle of hydrophilically modified polyester fabrics obtained in examples 1 and 5
As can be seen from Table 4, it is obtained by treating with TiO 2 The average value of 60s water contact angles of the gelatin-modified polyester fabric (the hydrophilic modified polyester fabric prepared in example 1) after being washed and dried for 10 times is 10.52 degrees. Although the water contact angle is increased compared with that of the newly prepared hydrophilic modified polyester fabric, the hydrophilic effect of the polyester fabric still maintains a better level. Proved by TiO 2 The polyester fabric modified by gelatin has good coating fastness and excellent washing resistance.
Comparative example 1
Preparation of TiO in step (2) of example 1 2 The TiO is obtained by omitting the addition of gelatin 2 Nanoparticle dispersions, tiO 2 The concentration of nanoparticles was still 4g/L, otherwise identical to example 1.
Comparative example 2
Preparation of TiO in step (2) of example 1 2 Gelatin compounded dispersion, omitting TiO 2 The addition of (1) was a gelatin solution, and the concentration of gelatin was still 5g/L, which was otherwise the same as that in example 1.
Comparative example 3
A method for coating and modifying polyester fabric based on titanium dioxide and gelatin (two-step method) comprises the following steps:
(1) Same as in step (1) of example 1;
(2) Modification treatment:
cutting the refined polyester fabric into squares, wherein each piece of the polyester fabric is 0.54g in weight; soaking in gelatin water solution with neutral pH for two times and rolling for two times (each time for 10min, the rolling residual rate is 90%), and adding TiO with neutral pH 2 Soaking the nano-particle dispersion liquid for two times (each time of soaking is 10min, the rolling residual rate is 90%), washing and drying to obtain the hydrophilic modified polyester fabric. Wherein the gelatin aqueous solution is obtained by dissolving gelatin, mixing with deionized water and performing ultrasonic dispersion, and the concentration of the gelatin is 5g/L; tiO2 2 The nanoparticle dispersion is made of TiO 2 Mixing the nano particles with deionized water, and performing ultrasonic dispersion to obtain the product TiO 2 The concentration of the nanoparticles was 4g/L.
The hydrophilic modified polyester fabrics prepared in example 1 and comparative examples 1, 2 and 3 were subjected to a 60s water contact angle test, and the test results are as follows:
table 5 test results of 60s water contact angle of hydrophilic modified polyester fabrics obtained in example 1 and comparative examples 1, 2 and 3
| Modified polyester fabric | Example 1 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Average value of water contact angle of 60s (°) | 5.78 | 19.35 | 16.68 | 19.18 |
As can be seen from table 5:
TiO alone 2 The single gelatin can also play a certain hydrophilic modification role on the terylene, but TiO is used 2 After being compounded with gelatin, the 60s water contact angle can be further reduced to 5.78 degrees, and the super-hydrophilic modified polyester fabric can be directly achieved, which proves that TiO 2 The gelatin can synergistically improve the hydrophilic modification effect on the terylene.
Comparative examples 1 and 3 show that modification with gelatin was followed by TiO modification 2 The water contact angle of 60s of the modified polyester fabric is 19.18 degrees and is higher than that of the polyester fabricOne-step TiO Process of example 1 2 5.78 degrees of the gelatin compound dispersion liquid, proving that the TiO compound dispersion liquid 2 And gelatin, wherein a one-step TiO modification process is used to produce the final hydrophilic modification effect 2 The polyester fabric modified by the gelatin compound dispersion liquid has better hydrophilic modification effect.
Claims (10)
1. A method for coating and modifying polyester fabric comprises the following steps: putting the refined polyester fabric into TiO 2 And soaking the mixture in gelatin compound dispersion liquid for two times at room temperature, washing and drying to obtain the hydrophilic modified polyester fabric.
2. The method of claim 1, wherein the TiO is 2 The concentration of the gelatin in the gelatin compound dispersion liquid is 1-10 g/L.
3. The method of claim 1, wherein the TiO is selected from the group consisting of 2 TiO in gelatin compound dispersion liquid 2 The concentration of the nano particles is 1 to 5g/L.
4. The method of claim 1, wherein the TiO is selected from the group consisting of 2 The concentration of gelatin in the gelatin compound dispersion liquid is 5g/L, and TiO 2 The concentration of (2) is 4g/L.
5. The method of claim 1, wherein the TiO is selected from the group consisting of 2 The pH value of the gelatin compound dispersion liquid is neutral.
6. The method as claimed in claim 1, wherein the method for preparing the polyester fabric with the refining treatment comprises:
placing the polyester fabric in a solution of soap chips and sodium carbonate for desizing and scouring; and (5) cleaning, drying and balancing in a constant temperature and humidity box to obtain the polyester fabric subjected to refining treatment.
7. The method according to any one of claims 1 to 6, characterized in thatCharacterized in that the preparation method of the dispersion comprises the following steps: soaking gelatin in deionized water, heating and dissolving to obtain a gelatin solution; mixing TiO with 2 Mixing with gelatin solution, fixing volume, and ultrasonic dispersing.
8. A hydrophilically modified polyester fiber obtained by the process of any one of claims 1 to 7.
9. Use of the hydrophilically modified fabric of claim 8 in the textile field.
10. A textile prepared from the hydrophilically modified polyester fabric of claim 8.
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