A polyester fiber fabric and a production method thereof

Abstract

The application belongs to the technical field of household textiles, and particularly relates to a polyester fiber fabric and a production method thereof. The production method of the polyester fiber fabric comprises the following steps: S1. adding sodium alginate and sodium benzoate into a zinc salt solution to perform a reaction, filtering and drying the obtained solid to obtain a zinc alginate benzoate; S2. modification of the polyester fiber fabric: adding the zinc alginate benzoate into water to uniformly stir to obtain a finishing liquid, immersing a gray cloth made of polyester fiber into the finishing liquid, performing two-dip-two-rolling, and then drying to obtain the polyester fiber fabric. The application prepares the zinc alginate benzoate with stronger hydrophilicity by the reaction of sodium alginate and sodium benzoate, can introduce more carboxylate ions into the sodium alginate and the sodium benzoate, and further improves the hydrophilic effect of the prepared polyester fiber fabric.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of household textiles, and particularly relates to a polyester fiber fabric and a production method thereof. BACKGROUND

[0002] Polyester fiber, commonly known as "polyester", is a synthetic fiber made of polyester compounds obtained by chemical polycondensation of organic acid and organic alcohol. Polyester fiber has excellent wrinkle resistance, shape retention and elastic recovery. It has high strength, high modulus, wear resistance, no hair sticking, heat resistance and light resistance. It is one of the three synthetic fibers with wide application, and is widely used in the field of household textiles such as bedding and carpets.

[0003] With the continuous improvement of living standards, people have higher and higher requirements for textiles. However, the moisture absorption of traditional polyester fiber is not good, and the sweat excreted by the human body cannot be discharged outside the body in time, and the use comfort is not good.

[0004] In order to improve the comfort of polyester fiber fabric, people try to use ethoxylated carboxylic acid, polyether and other hydrophilic finishing agents to finish the polyester fiber gray fabric. However, the hydrophilicity of the prepared polyester fiber fabric needs to be further improved, and the hydrophilicity of the hydrophilic finishing agent itself is relatively strong, which is easy to dissolve in water during use, resulting in poor durability of the hydrophilic effect. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a polyester fiber fabric and a production method thereof, so as to further improve the hydrophilicity of the prepared polyester fiber fabric and improve the durability of the hydrophilic effect of the polyester fiber fabric.

[0006] In some embodiments, the present application provides a production method of a polyester fiber fabric, comprising the following steps:

[0007] S1. Adding sodium alginate and sodium benzoate to a zinc salt solution for reaction, filtering and drying the solid obtained by filtering to obtain a zinc alginate benzoate;

[0008] S2. Modification of polyester fiber fabric: adding zinc alginate benzoate to water, stirring uniformly to obtain a finishing liquid, dipping the gray fabric made of polyester fiber in the finishing liquid, double-dipping and double-rolling, and then drying to obtain the polyester fiber fabric.

[0009] In some embodiments, in step S1, the zinc salt includes zinc chloride, zinc nitrate or a combination of the two.

[0010] In some embodiments, in step S1, the mass ratio of the zinc salt to the sodium alginate is 0.9-1.5:1, preferably 1-1.5:1.

[0011] In some embodiments, in step S1, the mass ratio of the zinc salt to the sodium benzoate is 0.9-1.5:0.9-1.5, preferably 1-1.5:0.9-1.5.

[0012] In some embodiments, in step S1, the temperature of the reaction is 20-60℃, preferably 30-60℃; the time length of the reaction is 1-5h, preferably 2-5h.

[0013] In some embodiments, in step S2, the zinc alginate benzoate salt is made into hydrophilic microcapsules, and then into a finishing liquid. The preparation of the hydrophilic microcapsules comprises: adding polyvinyl alcohol into water to obtain an emulsion, adding wall material and the zinc alginate benzoate salt into the emulsion to obtain a mixed liquid, and drying the mixed liquid to obtain the hydrophilic microcapsules, wherein the wall material comprises gum arabic.

[0014] In some embodiments, in step S2, the mass ratio of the polyvinyl alcohol to water is 0.2-0.5:1, preferably 0.3-0.5:1.

[0015] In some embodiments, in step S2, the mass ratio of the zinc alginate benzoate salt to gum arabic is 1:2-4, preferably 1:2.5-4.

[0016] In some embodiments, in step S2, the concentration of the wall material in the mixed liquid is 60-70g / L, preferably 65-70g / L.

[0017] In some embodiments, in step S2, the wall material further comprises sodium alginate.

[0018] In some embodiments, in step S2, the mass ratio of the sodium alginate to the gum arabic is 0.4-0.6:1, preferably 0.45-0.6:1.

[0019] In some embodiments, in step S2, the concentration of the zinc alginate benzoate salt in the finishing liquid is 30-50g / L, preferably 35-50g / L.

[0020] In some embodiments, in step S2, the mass ratio of the grey cloth to the finishing liquid is 1:10-20, preferably 1:12-20.

[0021] In some embodiments, in step S2, during the padding process, the padding rate is 72wt%-75wt%, preferably 73wt%-75wt%.

[0022] In some embodiments, in step S2, the temperature of the drying is 110-115℃, preferably 112-115℃; the time length of the drying is 1-3min, preferably 1.5-3min.

[0023] In some embodiments, the present invention also provides polyester fiber fabrics produced according to the production method described above.

[0024] As described above, the polyester fiber fabric and its production method of the present invention have the following beneficial effects:

[0025] (1) In this application, sodium alginate and sodium benzoate are prepared into zinc alginate benzoate salt with stronger hydrophilicity by reaction, which can introduce more carboxylate ions into sodium alginate and sodium benzoate, thereby further improving the hydrophilic effect of the polyester fiber fabric.

[0026] (2) In this application, sodium alginate and gum arabic are used in combination to improve the encapsulation rate, thereby further enhancing the hydrophilicity of the polyester fiber fabric.

[0027] (3) In this application, by preparing the hydrophilic finishing agent zinc alginate benzoate into microcapsules, the technical problem of the hydrophilic finishing agent itself being highly hydrophilic and easily soluble in water during use, resulting in poor durability of the hydrophilic effect, is solved. Detailed Implementation

[0028] The present invention will be further illustrated by specific examples below. However, it should be noted that the specific material ratios, process conditions and results described in the embodiments of the present invention are only for illustrating the present invention and cannot be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

[0029] This invention provides a method for producing polyester fiber fabric, comprising the following steps:

[0030] S1. Add sodium alginate and sodium benzoate to a zinc salt solution and react at 20-60℃ for 1-5 hours. Filter and dry the obtained solid to obtain zinc alginate-benzoate salt. The zinc salt includes zinc chloride, zinc nitrate, or a combination of the two. The mass ratio of zinc salt to sodium alginate is 0.9-1.5:1, and the mass ratio of zinc salt to sodium benzoate is 0.9-1.5:0.9-1.5.

[0031] S2. Modification of polyester fiber fabric: Add zinc alginate benzoate salt to water and stir evenly to obtain a finishing solution with a concentration of 30-50 g / L. Immerse the polyester fiber fabric in the finishing solution, and perform two dips and two nips. The mass ratio of the fabric to the finishing solution is 1:10-20. During the nipping process, the nipping rate is 72wt%-75wt%. Then dry at 110-115℃ for 1-3 min to obtain polyester fiber fabric.

[0032] In some embodiments, the zinc alginate benzoate is made into hydrophilic microcapsules, and then into finishing liquid, and the preparation of the hydrophilic microcapsules comprises: adding polyvinyl alcohol into water to obtain an emulsion, adding wall material and the zinc alginate benzoate into the emulsion to obtain a mixed solution with a concentration of 60-70 g / L of the wall material, and drying the mixed solution to obtain the hydrophilic microcapsules, wherein the wall material comprises gum arabic; the mass ratio of the zinc alginate benzoate to the wall material is 1:2-4, and the mass ratio of the polyvinyl alcohol to water is 0.2-0.5:1.

[0033] In some embodiments, in step S2, the wall material further comprises sodium alginate, and the mass ratio of the sodium alginate to the gum arabic is 0.4-0.6:1.

[0034] In some embodiments, the present application further provides a polyester fiber fabric prepared by the production method as described above.

[0035] The present application will be described in detail below through specific examples. It should also be understood that the following examples are only used to specifically describe the present application, and cannot be understood as a limitation on the protection scope of the present application. Some non-essential improvements and adjustments made by those skilled in the art based on the above description of the present application all belong to the protection scope of the present application. The specific process parameters in the following examples are only one example in the appropriate range, i.e., those skilled in the art can make appropriate selection within the range through the description herein, and are not limited to the specific values in the following examples.

[0036] Example 1

[0037] A production method of a polyester fiber fabric, specifically comprising:

[0038] S1. Adding sodium alginate and sodium benzoate into a zinc chloride solution with a concentration of 70 g / L, the mass ratio of the zinc chloride to the sodium alginate is 0.9:1, the mass ratio of the zinc chloride to the sodium benzoate is 0.9:1.5, stirring at 20℃ for 5h to react, filtering and drying the solid obtained by filtering to obtain zinc alginate benzoate;

[0039] Adding polyvinyl alcohol PVA1750 into deionized water to obtain an emulsion, the mass ratio of the polyvinyl alcohol PVA1750 to the deionized water is 0.2:1;

[0040] Adding gum arabic and the zinc alginate benzoate into the emulsion to obtain a mixed solution with a concentration of 65 g / L of the gum arabic, the mass ratio of the zinc alginate benzoate to the gum arabic is 1:3, and drying the mixed solution to dryness to obtain the hydrophilic microcapsules;

[0041] S2. Modification of the polyester fiber fabric: adding the hydrophilic microcapsules prepared in step S1 into deionized water to obtain a finishing liquid with a concentration of 30 g / L of the hydrophilic microcapsules after stirring uniformly;

[0042] The grey fabric made of polyester fiber is immersed in the finishing liquid, and is double-dipped and double-rolled, the mass ratio of the grey fabric to the finishing liquid is 1:20, and the roll liquid rate is 75wt% during the roll liquid process;

[0043] Then, drying at 110℃ for 3min, to obtain the polyester fiber fabric.

[0044] Example 2

[0045] The application discloses a production method of a polyester fiber fabric, and particularly relates to the following steps:

[0046] S1. adding sodium alginate and sodium benzoate into a zinc chloride solution with a concentration of 70g / L, the mass ratio of the zinc chloride to the sodium alginate is 1.5:1, the mass ratio of the zinc chloride to the sodium benzoate is 1.5:0.9, stirring at 40℃ for 1h to carry out the reaction, filtering and drying the solid obtained by filtering, to obtain a zinc alginate benzoate;

[0047] adding polyvinyl alcohol PVA1750 into the deionized water to obtain an emulsion, the mass ratio of the polyvinyl alcohol PVA1750 to the deionized water is 0.3:1;

[0048] adding gum arabic and the zinc alginate benzoate into the emulsion to obtain a mixed solution with a gum arabic concentration of 60g / L, the mass ratio of the zinc alginate benzoate to the gum arabic is 1:2; and drying the mixed solution to dryness to obtain the hydrophilic microcapsule;

[0049] S2. modifying the polyester fiber fabric: adding the hydrophilic microcapsule prepared in step S1 into the deionized water, stirring uniformly to obtain a finishing liquid with a hydrophilic microcapsule concentration of 40g / L;

[0050] The grey fabric made of polyester fiber is immersed in the finishing liquid, and is double-dipped and double-rolled, the mass ratio of the grey fabric to the finishing liquid is 1:15, and the roll liquid rate is 74wt% during the roll liquid process;

[0051] Then, drying at 115℃ for 1min, to obtain the polyester fiber fabric.

[0052] Example 3

[0053] The application discloses a production method of a polyester fiber fabric, and particularly relates to the following steps:

[0054] S1. adding sodium alginate and sodium benzoate into a zinc chloride solution with a concentration of 70g / L, the mass ratio of the zinc chloride to the sodium alginate is 1.2:1, the mass ratio of the zinc chloride to the sodium benzoate is 1.2:1.3, stirring at 60℃ for 1h to carry out the reaction, filtering and drying the solid obtained by filtering, to obtain a zinc alginate benzoate,

[0055] Polyvinyl alcohol PVA1750 was added into deionized water to obtain an emulsion, and the mass ratio of polyvinyl alcohol PVA1750 to deionized water was 0.25:1;

[0056] Arabic gum and zinc alginate benzoate were added into the emulsion to obtain a mixed solution with the concentration of Arabic gum being 70 g / L, and the mass ratio of zinc alginate benzoate to Arabic gum was 1:4; and the mixed solution was dried to dryness to obtain the hydrophilic microcapsule;

[0057] S2. Modification of polyester fabric: hydrophilic microcapsules prepared in step S1 were added into deionized water to obtain a finishing solution with the concentration of hydrophilic microcapsules being 50 g / L;

[0058] The grey fabric made of polyester fiber was immersed in the finishing solution, and was double-dipped and double-rolled, and the mass ratio of the grey fabric to the finishing solution was 1:10, and the pick-up rate was 72 wt% during the rolling process;

[0059] Then, the polyester fabric was dried at 112°C for 2 min to obtain the polyester fabric.

[0060] Example 4

[0061] The difference between this example and example 1 is that:

[0062] S1. Sodium alginate and sodium benzoate were added into a zinc chloride solution with the concentration of 70 g / L, and the mass ratio of zinc chloride to sodium alginate was 0.9:1, and the mass ratio of zinc chloride to sodium benzoate was 0.9:1.5, and the mixture was stirred at 20°C for 5 h to react, and the solid obtained by filtration was dried to obtain zinc alginate benzoate;

[0063] Polyvinyl alcohol PVA1750 was added into deionized water to obtain an emulsion, and the mass ratio of polyvinyl alcohol PVA1750 to deionized water was 0.2:1;

[0064] Wall material and zinc alginate benzoate were added into the emulsion to obtain a mixed solution with the concentration of Arabic gum being 65 g / L, and the mass ratio of zinc alginate benzoate to wall material was 1:3; and the mixed solution was dried to dryness to obtain the hydrophilic microcapsule, and the wall material was composed of Arabic gum and sodium alginate with the mass ratio of 1:0.4.

[0065] Example 5

[0066] The difference between this example and example 1 is that:

[0067] S1. Sodium alginate and sodium benzoate were added into a zinc chloride solution with the concentration of 70 g / L, and the mass ratio of zinc chloride to sodium alginate was 0.9:1, and the mass ratio of zinc chloride to sodium benzoate was 0.9:1.5, and the mixture was stirred at 20°C for 5 h to react, and the solid obtained by filtration was dried to obtain zinc alginate benzoate;

[0068] Polyvinyl alcohol PVA1750 was added into the deionized water to obtain an emulsion, and the mass ratio of polyvinyl alcohol PVA1750 to deionized water was 0.2:1;

[0069] The wall material and the zinc alginate benzoate were added into the emulsion to obtain a mixed solution with the concentration of 65 g / L of gum arabic, and the mass ratio of the zinc alginate benzoate to the wall material was 1:3; and the mixed solution was dried to dryness to obtain the hydrophilic microcapsule, and the wall material was composed of gum arabic and sodium alginate according to the mass ratio of 1:0.6.

[0070] Example 6

[0071] A production method of a polyester fabric, specifically:

[0072] S1. Sodium alginate and sodium benzoate were added into a zinc chloride solution with the concentration of 70 g / L, the mass ratio of zinc chloride to sodium alginate was 0.9:1, the mass ratio of zinc chloride to sodium benzoate was 0.9:1.5, stirring was carried out at 20℃ for 5h to carry out the reaction, filtration was carried out and the solid obtained by filtration was dried to obtain the zinc alginate benzoate;

[0073] S2. Modification of the polyester fabric: the zinc alginate benzoate prepared in step S1 was added into deionized water to obtain a finishing liquid with the concentration of 30 g / L of the zinc alginate benzoate after stirring uniformly;

[0074] The grey fabric made of polyester terylene fiber was immersed in the finishing liquid, and two-dip-two-rolling was carried out, the mass ratio of the grey fabric to the finishing liquid was 1:20, and the pick-up rate was 75wt% during the rolling process;

[0075] Then, drying was carried out at 110℃ for 3min to obtain the polyester fabric.

[0076] Comparative Example 1

[0077] A production method of a polyester fabric, specifically:

[0078] Sodium alginate was added into deionized water to obtain a finishing liquid with the concentration of 30 g / L of sodium alginate after stirring uniformly;

[0079] The grey fabric made of polyester terylene fiber was immersed in the finishing liquid, and two-dip-two-rolling was carried out, the mass ratio of the grey fabric to the finishing liquid was 1:20, and the pick-up rate was 75wt% during the rolling process;

[0080] Then, drying was carried out at 110℃ for 3min to obtain the polyester fabric.

[0081] Comparative Example 2

[0082] A production method of a polyester fabric, specifically:

[0083] Sodium benzoate was added to deionized water, and stirred to obtain a finishing liquid with a concentration of 30 g / L of sodium benzoate;

[0084] The gray fabric made of polyester fiber was immersed in the finishing liquid, and was double-dipped and double-rolled, with a mass ratio of the gray fabric to the finishing liquid of 1:20. During the rolling process, the rolling rate was 75 wt%.

[0085] Then, the polyester fiber fabric was dried at 110°C for 3 min.

[0086] Performance detection

[0087] According to GB / T21655.1-2008, the water absorption rate of the polyester fiber fabric prepared in Examples 1-6 and Comparative Examples 1-2 was detected, and the results are shown in Table 1.

[0088] Subsequently, each group of samples was machine washed at room temperature, with a washing time of 10 min, a water level of full water level, a stirring speed of 180 r / min, a spin-drying speed of 650 r / min, and a spin-drying time of 6 min. Then, the samples were air-dried. After 50 cycles of washing-air drying, the water absorption rate was detected again according to GB / T21655.1-2008, and the results are shown in Table 1.

[0089] Table 1 detection results

[0090] Group Water absorption (before washing) Water absorption (after washing) Example 1 318％ 316％ Example 2 307％ 306％ Example 3 312％ 309％ Example 4 375％ 372％ Example 5 369％ 366％ Example 6 373％ 312％ Comparative Example 1 249％ 151％ Comparative Example 2 224％ 133％

[0091] As shown in Table 1, compared with Comparative Example 1, the water absorption rate of the polyester fiber fabric of Example 6 was significantly improved. This indicates that, by preparing sodium alginate benzoate into a zinc alginate benzoate with stronger hydrophilicity through the reaction, more carboxylate groups can be introduced into sodium alginate and sodium benzoate, thereby improving the hydrophilicity of the prepared polyester fiber fabric.

[0092] As shown in Table 1, compared with Example 1, the water absorption rates of the polyester fiber fabrics of Examples 4 and 5 before washing were increased by about 17.9% and about 16.0%, respectively. This result indicates that, in the present application, the use of sodium alginate and gum arabic in combination can improve the embedding rate, thereby further improving the hydrophilicity of the prepared polyester fiber fabric.

[0093] As shown in Table 1, before and after washing, the water absorption rate of the polyester fiber fabric of Example 4 did not change significantly, while the water absorption rate of the polyester fiber fabric of Example 6 decreased significantly. This result indicates that, by preparing the zinc alginate benzoate into a microcapsule, the present application solves the technical problem that the hydrophilic finishing agent itself has strong hydrophilicity, which is easily dissolved in water during use, resulting in poor durability of the hydrophilic effect.

[0094] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Any modification or change made by those skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A method for producing polyester fiber fabric, characterized in that, Includes the following steps: S1. Add sodium alginate and sodium benzoate to the zinc salt solution to react, filter, and dry the filtered solid to obtain zinc alginate benzoate salt; S2. Modification of polyester fiber fabric: Zinc alginate benzoate salt is made into hydrophilic microcapsules, and then a finishing solution is prepared. The preparation of hydrophilic microcapsules includes: adding polyvinyl alcohol to water to obtain an emulsion, adding a wall material and zinc alginate benzoate salt to the emulsion to obtain a mixture, drying the mixture to obtain the hydrophilic microcapsules, wherein the wall material includes gum arabic, immersing a greige fabric made of polyester fiber in the finishing solution, performing two dips and two nips, and then drying to obtain the polyester fiber fabric.

2. The production method as described in claim 1, characterized in that, In step S1, the zinc salt includes zinc chloride, zinc nitrate, or a combination of both; And / or, in step S1, the mass ratio of the zinc salt to the sodium alginate is 0.9-1.5:1; And / or, in step S1, the mass ratio of the zinc salt to the sodium benzoate is 0.9-1.5:0.9-1.5; And / or, in step S1, the reaction temperature is 20-60℃ and the reaction time is 1-5h.

3. The production method as described in claim 1, characterized in that, In step S2, the mass ratio of polyvinyl alcohol to water is 0.3-0.5:1; And / or, in the mixture described in step S2, the concentration of the wall material is 60-70 g / L.

4. The production method as described in claim 1, characterized in that, The wall material described in step S2 also includes sodium alginate; And / or, in step S2, the mass ratio of the zinc alginate benzoate salt to the wall material is 1:2-4.

5. The production method according to claim 4, characterized in that, In step S2, the mass ratio of sodium alginate to gum arabic is 0.4-0.6:

1.

6. The production method according to claim 1, characterized in that, In the finishing solution described in step S2, the concentration of zinc alginate benzoate salt is 30-50 g / L.

7. The production method according to claim 1, characterized in that, In step S2, the mass ratio of the greige fabric to the finishing solution is 1:10-20; And / or, in step S2, during the slurry rolling process, the slurry rolling rate is 72wt%-75wt%.

8. The production method according to claim 1, characterized in that, In step S2, the drying temperature is 110-115℃ and the drying time is 1-3 minutes.

9. Polyester fiber fabric produced by the production method according to any one of claims 1-8.