Color-fixing real silk fiber material, textile fabric and preparation method of color-fixing real silk fiber material and textile fabric

Abstract

The invention provides a color-fixed real silk fiber material, a textile fabric and a preparation method thereof.The color-fixed real silk fiber material and the color-fixed real silk fabric are subjected to heat preservation in a mixed aqueous solution A of phytic acid and metal salt for 45-75 minutes, the pick-up rate is controlled to be 75%-100%, and then the mixture is immersed in malic acid at the temperature of 70-85 DEG C, dialdehyde chitosan and 2, 4, 6-trimethyl-1, 3-pentanediol; carrying out heat preservation for 1.5-3 hours in a mixed aqueous solution B containing 2, 3-epoxypropyl trimethyl ammonium chloride; and baking at the temperature of 80-100 DEG C after the pick-up rate is controlled to be 120-150%. According to the color-fixed real silk fiber material, after a color-fixed real silk textile fabric is sequentially subjected to hot bath treatment through a mixed aqueous solution A of phytic acid and metal salt, malic acid and a mixed aqueous solution B of dialdehyde chitosan and 2, 3-epoxypropyltrimethylammonium chloride, the pick-up rate is controlled, baking is conducted, and the color-fixed real silk textile fabric is obtained. According to the modified color-fixed real silk fiber material, the flame retardant property is improved, and meanwhile, the color fastness of the dyed real silk material is improved.

Description

Technical Field

[0001] The invention relates to the field of textile materials, and in particular to a color-fixing silk fiber material and a textile fabric and a preparation method thereof. Background Art

[0002] With the frequent occurrence of fires in daily life, the methods for modifying the flame retardant properties of textile materials have gradually increased. Phytic acid chelated metal has a good effect on the modification of the flame retardant properties of silk. However, after the flame retardant modification, the color fixation of silk after dyeing is reduced, which has a negative impact on the color fixation performance of silk. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a color-fixing silk fiber material and a textile fabric and a preparation method thereof.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a color-fixing silk fiber material, wherein the silk fiber is sequentially subjected to the following steps for modification to obtain the color-fixing silk fiber material; (1) immersing the silk fiber in a mixed aqueous solution A of phytic acid and a metal salt at 70 to 85° C. for 45 to 75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride; (2) the silk fibers treated in step (1) are immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 70-85° C. and kept warm for 1.5-3 hours after the milling rate is controlled to be 75%-100%. (3) baking the silk fiber treated in step (2) at 80-100° C. after controlling the residual rate of the silk fiber to be 120-150%; (4) Rinse the silk fibers treated in step (3) with water and then air dry them naturally.

[0005] The above-mentioned color-fixing silk fiber material is treated in a hot water bath with a mixed aqueous solution A of phytic acid and metal salt, and a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride, and the residual rate is controlled and the material is baked. The modified color-fixing silk fiber material not only improves the flame retardant properties, but also improves the color fastness of the silk material after dyeing.

[0006] Preferably, in step (1), the concentration of phytic acid in the mixed aqueous solution A is 30 g / L to 75 g / L, and the concentration of the metal salt is 2 to 4 g / L.

[0007] Preferably, in step (2), the concentration of malic acid in the mixed aqueous solution B is 8-20 g / L, the concentration of dialdehyde chitosan is 15-35 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10-25 g / L.

[0008] The above-mentioned color-fixing silk fiber material has better effects on the flame retardant and color-fixing properties of the silk material by controlling the concentrations of phytic acid and metal salt in the mixed aqueous solution A and the concentrations of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride in the mixed aqueous solution B.

[0009] Preferably, in step (1), the bath ratio of the silk fiber to the mixed aqueous solution A is 1:(40-75).

[0010] Preferably, in step (2), the bath ratio of the silk fiber to the mixed aqueous solution B is 1:(40-75).

[0011] Preferably, the baking time in step (3) is 60 to 120 minutes.

[0012] Preferably, the silk fiber is mulberry silk, tussah silk, castor silk or cassava silk.

[0013] The present invention also provides a color-fixing silk textile fabric, which is woven from any of the above-mentioned color-fixing silk fiber materials.

[0014] The present invention also provides a color-fixing silk textile fabric, which is modified by sequentially performing the following steps to obtain the color-fixing silk textile fabric; (1) immersing the silk fabric in a mixed aqueous solution A of phytic acid and a metal salt at 70 to 85° C. for 45 to 75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride; (2) the silk fabric treated in step (1) is controlled to have a residual rate of 75% to 100% and then immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 70 to 85° C. and kept warm for 1.5 to 3 hours; (3) baking the silk fabric treated in step (2) at 80-100° C. after controlling the residual rate to be 120-150%; (4) Rinse the silk fibers treated in step (3) with water and then air dry them naturally.

[0015] Preferably, in step (1), the concentration of phytic acid in the mixed aqueous solution A is 30 g / L to 75 g / L, and the concentration of the metal salt is 2 to 4 g / L; Preferably, in step (2), the concentration of malic acid in the mixed aqueous solution B is 8-20 g / L, the concentration of dialdehyde chitosan is 15-35 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10-25 g / L.

[0016] The above-mentioned color-fixing silk textile fabric has better effects on the flame retardant and color-fixing properties of the silk material by controlling the concentrations of phytic acid and metal salt in the mixed aqueous solution A and the concentrations of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride in the mixed aqueous solution B.

[0017] Preferably, in step (1), the bath ratio of the silk fabric to the mixed aqueous solution A is 1:(40-75).

[0018] Preferably, in step (2), the bath ratio of the silk fabric to the mixed aqueous solution B is 1:(40-75).

[0019] Preferably, the baking time in step (3) is 60 to 120 minutes.

[0020] Preferably, the silk fabric is mulberry silk fabric, tussah silk fabric, castor silk fabric or cassava silk fabric.

[0021] The present invention also provides a method for preparing a color-fixing silk textile fabric, the method comprising the following steps: (1) immersing the silk fabric in a mixed aqueous solution A of phytic acid and a metal salt at 70 to 85° C. for 45 to 75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride; (2) the silk fabric treated in step (1) is controlled to have a residual rate of 75% to 100% and then immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 70 to 85° C. and kept warm for 1.5 to 3 hours; (3) baking the silk fabric treated in step (2) at 80-100° C. after controlling the residual rate to be 120-150%; (4) Rinse the silk fibers treated in step (3) with water and then air dry them naturally.

[0022] Preferably, in step (1), the concentration of phytic acid in the mixed aqueous solution A is 30 g / L to 75 g / L, and the concentration of the metal salt is 2 to 4 g / L.

[0023] Preferably, in step (2), the concentration of malic acid in the mixed aqueous solution B is 8-20 g / L, the concentration of dialdehyde chitosan is 15-35 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10-25 g / L.

[0024] Preferably, in step (1), the bath ratio of the silk fabric to the mixed aqueous solution A is 1:(40-75).

[0025] Preferably, in step (2), the bath ratio of the silk fabric to the mixed aqueous solution B is 1:(40-75).

[0026] Preferably, the baking time in step (3) is 60 to 120 minutes.

[0027] Preferably, the silk fabric is mulberry silk fabric, tussah silk fabric, castor silk fabric or cassava silk fabric.

[0028] The beneficial effects of the present invention are as follows: the present invention provides a color-fixing silk fiber material and a textile fabric and a preparation method thereof; the color-fixing silk fiber material and the color-fixing silk textile fabric of the present invention are sequentially treated with a mixed aqueous solution A of phytic acid and a metal salt, and a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride in a hot water bath, and then the rolling rate is controlled and the fabric is baked; the modified color-fixing silk fiber material has improved flame retardancy and improved color fastness of the silk material after dyeing. DETAILED DESCRIPTION

[0029] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be further described below in conjunction with specific embodiments.

[0030] Example 1 As a color-fixing silk fiber material of the present invention, the silk fiber is subjected to the following modification treatments in sequence to obtain the color-fixing silk fiber material; (1) immersing silk fibers in a mixed aqueous solution A of phytic acid and metal salt at 70-85° C. for 45-75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride; the concentration of phytic acid in the mixed aqueous solution A is 30 g / L-75 g / L, the concentration of the metal salt is 2-4 g / L, and the bath ratio of the silk fibers to the mixed aqueous solution A is 1:(40-75); the silk fibers are mulberry silk, tussah silk, castor silk or cassava silk; (2) the silk fiber treated in step (1) is controlled to have a residual rate of 75% to 100% and then immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 70 to 85° C. and kept warm for 1.5 to 3 hours; the concentration of malic acid in the mixed aqueous solution B is 8 to 20 g / L, the concentration of dialdehyde chitosan is 15 to 35 g / L, the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10 to 25 g / L, and the bath ratio of the silk fiber to the mixed aqueous solution B is 1:(40 to 75); (3) baking the silk fiber treated in step (2) at 80-100° C. for 60-120 minutes after controlling the rolling rate to be 120-150%; (4) Rinse the silk fibers treated in step (3) with water and then air dry them naturally.

[0031] Example 2 As a color-fixing silk textile fabric of the present invention, the silk fabric is subjected to modification treatment in the following steps in sequence to obtain a color-fixing silk fiber material; (1) The silk fiber is immersed in a mixed aqueous solution A of phytic acid and a metal salt at 80°C for 60 minutes, wherein the metal salt is calcium chloride; the concentration of phytic acid in the mixed aqueous solution A is 45 g / L, the concentration of the metal salt is 2.5 g / L, and the bath ratio of the silk fiber to the mixed aqueous solution A is 1:45; the silk fabric selected in this embodiment is a silk double crepe, 52 g / m 2 ; (2) The silk fiber treated in step (1) is controlled to have a residual rate of 85% and then immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 80° C. for 2 hours; the concentration of malic acid in the mixed aqueous solution B is 12 g / L, the concentration of dialdehyde chitosan is 20 g / L, the concentration of 2,3-epoxypropyltrimethylammonium chloride is 15 g / L, and the bath ratio of the silk fiber to the mixed aqueous solution B is 1:50; the dialdehyde chitosan in this embodiment is prepared by oxidizing chitosan with sodium periodate; (3) baking the silk fiber treated in step (2) at 90° C. for 60 minutes after controlling the residual rate to 135%; (4) Rinse the silk fibers treated in step (3) with deionized water and then air dry them naturally.

[0032] Example 3 As a color-fixing silk textile fabric of the present invention, the only difference between this embodiment and embodiment 2 is that the concentration of malic acid in the mixed aqueous solution B is 8 g / L.

[0033] Example 4 As a color-fixing silk textile fabric of the present invention, the only difference between this embodiment and embodiment 2 is that the concentration of malic acid in the mixed aqueous solution B is 18 g / L.

[0034] Example 5 As a color-fixing silk textile fabric of the present invention, the only difference between this embodiment and Embodiment 2 is that the concentration of dialdehyde chitosan is 15 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10 g / L.

[0035] Example 6 As a color-fixing silk textile fabric of the present invention, the only difference between this embodiment and Embodiment 2 is that the concentration of dialdehyde chitosan is 30 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 20 g / L.

[0036] Example 7 As a color-fixing silk textile fabric of the present invention, the only difference between this embodiment and Embodiment 2 is that the concentration of dialdehyde chitosan is 30 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10 g / L.

[0037] Comparative Example 1 As a color-fixing silk textile fabric of the comparative example of the present invention, the only difference between this comparative example and Example 2 is that in the step (2), chitosan is used to replace dialdehyde chitosan.

[0038] Comparative Example 2 As a color-fixing silk textile fabric of the comparative example of the present invention, the only difference between this comparative example and Example 2 is that malic acid is not added in the step (2).

[0039] Comparative Example 3 As a color-fixing silk textile fabric of the comparative example of the present invention, the only difference between this comparative example and Example 2 is that in the step (2), 2,3-epoxypropyltrimethylammonium chloride is not added.

[0040] Comparative Example 4 A color-fixing silk textile fabric as a comparative example of the present invention comprises the following steps: (1) The silk fiber is immersed in a mixed aqueous solution A of phytic acid and a metal salt at 80°C for 60 minutes, wherein the metal salt is calcium chloride; the concentration of phytic acid in the mixed aqueous solution A is 45 g / L, the concentration of the metal salt is 2.5 g / L, and the bath ratio of the silk fiber to the mixed aqueous solution A is 1:45; the silk fabric selected in this embodiment is a silk double crepe, 52 g / m 2 ; (2) baking the silk fiber treated in step (1) at 90° C. for 60 minutes after controlling the residual rate to 135%; (3) Rinse the silk fibers treated in step (2) with deionized water and then air dry them naturally.

[0041] Experimental methods 1. 52g / m 2 The silk double crepe was cut into 5 cm × 15 cm specifications, and the color-fixed silk textile fabrics were prepared according to Examples 2-7 and Comparative Examples 1-3, with 6 pieces prepared for each example. The reference product was 52 g / m 2 Silk crepe de chine.

[0042] 2. Flame retardant performance test.

[0043] The limiting oxygen index (LOI) of silk fabrics was tested on a FTTO 0080 automatic oxygen index instrument in accordance with GB / T 5454 "Textile Combustion Performance Test Oxygen Index Method". Three samples were set in parallel.

[0044] 3. Dyeing performance test Dyeing by immersion method, first use deionized water as reference solution, take reactive red 3BF dye to prepare sample and inject it into cuvette, use visible light spectrophotometer to scan in the wavelength range of 420nm~700nm to get the corresponding absorbance. Find the maximum absorption wavelength λ of the dye through absorbance and scanning wavelength.

[0045] Then, different silk fabrics were immersed in the dye at 55°C and stirred for 10 minutes. The dye solution concentration was 2% and the bath ratio was 1:10 to complete the dyeing. The dye solution before dyeing and the residual liquid after dyeing of different silk fabrics were sampled, and their absorbance was measured to calculate the dyeing rate of the silk fabric samples.

[0046] Dyeing rate (%) = (1-A1 / A0) × 100%, A0 is the absorbance of the original dye solution, and A1 is the absorbance of the residual solution after dyeing.

[0047] 4. Washing color fastness performance test The above dyed silk fabrics were rinsed with deionized water to remove the floating color on the surface and dried naturally. The different silk fabrics with floating color removed were placed in deionized water with a bath ratio of 1:50, preheated to 25°C in a vertical decontamination test machine, stirred at 80 r / min, and washed for 2 hours. The washing liquid samples were collected and their absorbance values ​​were measured. The color fastness performance was based on the untreated 52g / m 2 Silk double crepe is used as the reference material for calculation, and the color fastness performance (%) = (A0-A2) / (A0-A3) × 100%, A0 is the absorbance of the dyeing solution, A2 is the absorbance of the washing solution after the modified sample is washed, and A3 is the absorbance of the washing solution after the reference material is washed.

[0048] The experimental results are shown in Table 1.

[0049] sample Limiting oxygen index (LOI / %) Dyeing rate (%) Color fastness performance (%) Example 2 29.0 20.4 120.7 Example 3 29.1 19.3 111.5 Example 4 28.7 21.7 123.8 Example 5 28.7 18.7 107.8 Example 6 29.1 22.4 128.2 Example 7 28.8 21.8 124.1 Comparative Example 1 28.9 16.9 90.1 Comparative Example 2 29.1 17.1 91.2 Comparative Example 3 28.8 16.7 89.0 Comparative Example 4 30.2 15.6 83.2 Reference 24.5 18.0 100 As can be seen from the above table, the silk fabric is treated with a hot water bath of a mixed aqueous solution A of phytic acid and metal salts, a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride, and the residual rate is controlled and baked. The modified color-fixing silk fiber material improves the flame retardant properties and improves the color fastness of the silk material after dyeing. After washing, in comparison, the comparative method improves the flame retardant properties while bringing negative effects on the dyeing and color fixing properties. By combining the mixed aqueous solution A of phytic acid and metal salts, and the mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride, the hot water bath treatment not only provides flame retardant properties but also improves the dyeing and color fixing properties.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A color-fixing silk fiber material, It is characterized in that The silk fiber is modified by the following steps in sequence to obtain a color-fixed silk fiber material; (1) immersing the silk fiber in a mixed aqueous solution A of phytic acid and a metal salt at 70 to 85° C. for 45 to 75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride; (2) the silk fibers treated in step (1) are immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 70-85° C. and kept warm for 1.5-3 hours after the milling rate is controlled to be 75%-100%. (3) baking the silk fiber treated in step (2) at 80-100° C. after controlling the residual rate of the silk fiber to be 120-150%; (4) Rinse the silk fibers treated in step (3) with water and then air dry them naturally.

2. The color-fixing silk fiber material according to claim 1, It is characterized in that In the step (1), the concentration of phytic acid in the mixed aqueous solution A is 30 g / L to 75 g / L, and the concentration of the metal salt is 2 to 4 g / L.

3. The color-fixing silk fiber material according to claim 1, It is characterized in that In the step (2), the concentration of malic acid in the mixed aqueous solution B is 8-20 g / L, the concentration of dialdehyde chitosan is 15-35 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10-25 g / L.

4. The color-fixing silk fiber material according to claim 1, It is characterized in that In the step (1), the bath ratio of the silk fiber to the mixed aqueous solution A is 1:(40-75), in the step (2), the bath ratio of the silk fiber to the mixed aqueous solution B is 1:(40-75), and the baking time in the step (3) is 60-120 minutes. The silk fiber is mulberry silk, tussah silk, castor silk or cassava silk.

5. A color-fixing silk textile fabric, It is characterized in that The color-fixing silk textile fabric is obtained by weaving the color-fixing silk fiber material according to any one of claims 1 to 4.

6. A color-fixing silk textile fabric, It is characterized in that The silk fabric is modified by the following steps in sequence to obtain a color-fixed silk textile fabric; (1) immersing the silk fabric in a mixed aqueous solution A of phytic acid and a metal salt at 70 to 85° C. for 45 to 75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride; (2) the silk fabric treated in step (1) is controlled to have a residual rate of 75% to 100% and then immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 70 to 85° C. and kept warm for 1.5 to 3 hours; (3) baking the silk fabric treated in step (2) at 80-100° C. after controlling the residual rate to be 120-150%; (4) Rinse the silk fibers treated in step (3) with water and then air dry them naturally.

7. The color-fixing silk textile fabric according to claim 6, It is characterized in that In the step (1), the concentration of phytic acid in the mixed aqueous solution A is 30 g / L to 75 g / L, and the concentration of the metal salt is 2 to 4 g / L; In the step (2), the concentration of malic acid in the mixed aqueous solution B is 8-20 g / L, the concentration of dialdehyde chitosan is 15-35 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10-25 g / L.

8. The color-fixing silk fiber material according to claim 6, It is characterized in that In the step (1), the bath ratio of the silk fabric and the mixed aqueous solution A is 1:(40-75), in the step (2), the bath ratio of the silk fabric and the mixed aqueous solution B is 1:(40-75), and the baking time in the step (3) is 60-120 minutes. The silk fabric is mulberry silk fabric, tussah silk fabric, castor silk fabric or cassava silk fabric.

9. A method for preparing a color-fixing silk textile fabric, It is characterized in that The method comprises the following steps: (1) immersing the silk fabric in a mixed aqueous solution A of phytic acid and a metal salt at 70 to 85° C. for 45 to 75 minutes, wherein the metal salt is calcium chloride, magnesium chloride or aluminum chloride; (2) the silk fabric treated in step (1) is controlled to have a residual rate of 75% to 100% and then immersed in a mixed aqueous solution B of malic acid, dialdehyde chitosan and 2,3-epoxypropyltrimethylammonium chloride at 70 to 85° C. and kept warm for 1.5 to 3 hours; (3) baking the silk fabric treated in step (2) at 80-100° C. after controlling the residual rate to be 120-150%; (4) Rinse the silk fibers treated in step (3) with water and then air dry them naturally.

10. The method for preparing the color-fixing silk textile fabric according to claim 8, It is characterized in that In the step (1), the concentration of phytic acid in the mixed aqueous solution A is 30 g / L to 75 g / L, and the concentration of the metal salt is 2 to 4 g / L; In the step (2), the concentration of malic acid in the mixed aqueous solution B is 8-20 g / L, the concentration of dialdehyde chitosan is 15-35 g / L, and the concentration of 2,3-epoxypropyltrimethylammonium chloride is 10-25 g / L; In the step (1), the bath ratio of the silk fabric and the mixed aqueous solution A is 1:(40-75), in the step (2), the bath ratio of the silk fabric and the mixed aqueous solution B is 1:(40-75), and the baking time in the step (3) is 60-120 minutes. The silk fabric is mulberry silk fabric, tussah silk fabric, castor silk fabric or cassava silk fabric.