Mirror nylon fabric and preparation method thereof

Abstract

The present invention relates to a mirror-finish nylon fabric and a preparation method thereof. The preparation method comprises the following steps: step 1, selecting a nylon fabric, performing a first calendering treatment on the nylon fabric, and after the treatment, performing a first water washing on the nylon fabric using a silicone softener, an Eclaudiceae extract, and water; step 2, performing a second calendering treatment on the nylon fabric treated in step 1, and after the treatment, performing a second water washing on the nylon fabric using a bulking softener and water. The present invention comprises performing a first water washing on the calendered nylon fabric using a silicone softener, an Eclaudiceae extract, and water after the first calendering treatment, and performing a second water washing on the calendered nylon fabric using a bulking softener and water after the second calendering treatment. The mirror-finish nylon fabric produced by the present invention has significantly improved color fastness to friction, color fastness to perspiration, antibacterial properties, and softness, while still maintaining its original breathability.

Description

Technical Field

[0001] The invention belongs to the technical field of nylon fabrics, and particularly relates to a mirror nylon fabric and a preparation method thereof. Background Art

[0002] Nylon fabric is light, soft, and wear-resistant, and has gradually become one of the commonly used fabrics in modern life. It is widely used in down jackets, shoes, socks, gloves, backpacks, tents and other fields. Mirror refers to an effect on the surface of nylon fabric, which looks similar to a glass mirror and can be achieved through calendering. Calendering is a fabric processing technology that produces a mirror effect on the fabric under the action of temperature and pressure.

[0003] Although calendering can improve the quality of nylon fabrics, making them smoother, softer, and more three-dimensional, and giving them a better texture, it can also increase the durability of nylon fabrics and extend their service life. However, nylon fabrics after calendering are prone to color difference, and are also prone to poor color fastness during later use. Summary of the Invention

[0004] The purpose of the present invention is to provide a mirror nylon fabric and a preparation method thereof in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A method for preparing a mirror-finished nylon fabric comprises the following steps:

[0007] Step 1: Select nylon fabric, perform a first calendering treatment on the nylon fabric, and then wash the nylon fabric with a first washing solution, wherein the washing solution is composed of a silicone softener, an Eclipta prostrata extract, and water;

[0008] Step 2: performing a second calendering treatment on the nylon fabric treated in step 1, and then washing the nylon fabric for a second time using a second washing solution, wherein the second washing solution is composed of a fluffy softener and water;

[0009] Step 3: Perform a third calendering treatment on the nylon fabric treated in step 2 to obtain a mirror nylon fabric.

[0010] As a further optimization scheme of the present invention, in step one, the thickness of the warp yarn and the weft yarn of the nylon fabric are both 40D, the warp density is 55-65 yarns / cm, and the weft density is 40-50 yarns / cm.

[0011] As a further optimization solution of the present invention, in the first calendering treatment, the surface temperature of the metal calendering roller is 170-180°C and the speed is 20-30m / min;

[0012] The second calendering treatment, the surface temperature of the metal calendering roller is 160-170℃, and the speed is 20-30m / min;

[0013] The third calendering treatment, the surface temperature of the metal calendering roller is 30-45℃, and the speed is 30-50m / min;

[0014] During the three calendering processes, the roller surface line pressure of the metal calendering roller is 4-6 MPa.

[0015] As a further optimization solution of the present invention, in step 1, the amount of the silicone softener is 20-35 g / L, and the silicone softener is any one or more of aminopolysiloxane and polydimethylsiloxane.

[0016] As a further optimization scheme of the present invention, in step 2, the amount of the fluffy softener is 25-35 g / L, and the fluffy softener is any one or more of fatty acid sulfate, distearyl succinic acid sulfonate, and pentaerythritol fatty acid ester.

[0017] As a further optimized solution of the present invention, in step 1, the amount of the Eclipta prostrata extract is 30-50 g / L.

[0018] As a further optimization scheme of the present invention, the method for obtaining the Eclipta prostrata extract is to take the stems of fresh Eclipta prostrata, crush them, soak them in an ethanol solution with a pH value of 7-8 and a volume percentage concentration of 68% to 80% for 1-2 hours, and then extract them. The solution obtained by extraction is filtered and concentrated in turn to obtain the Eclipta prostrata extract.

[0019] A mirror-finished nylon fabric is prepared by the above-mentioned preparation method.

[0020] The beneficial effects of the present invention are:

[0021] 1) The present invention performs a first water washing on the calendered nylon fabric using a silicone softener, an Eclipta prostrata extract, and water after a first calendering treatment, and then performs a second water washing on the calendered nylon fabric using a bulking softener and water after a second calendering treatment. The mirror-finished nylon fabric prepared by the present invention has significantly improved color fastness to friction, color fastness to perspiration, antibacterial properties, and softness, while still maintaining its original breathability.

[0022] 2) The present invention washes the nylon fabric with a silicone softener, an Eclalphia extract, and water after a first calendering treatment. A second calendering treatment allows the silicone softener and the Eclalphia extract attached to the nylon fabric to be evenly dispersed into the pores of the nylon fabric, thereby providing a certain degree of protection for the nylon fabric. The prepared mirror-finished nylon fabric has good softness, improves the color fastness to friction and perspiration of the mirror-finished nylon fabric, and further improves the antibacterial properties of the mirror-finished nylon fabric.

[0023] 3) After the second calendering treatment, the nylon fabric is washed with a fluffy softener and water, thereby improving the air permeability of the nylon fabric;

[0024] 4) The present invention uses polydimethylsiloxane and Eclipta prostrata extract together for the first water washing of nylon fabric, thereby improving the color fastness to friction, color fastness to perspiration, and antibacterial properties of the mirror nylon fabric through their synergistic effect.

[0025] 5) The present invention uses a silicone softener to stably infiltrate the Eclipta prostrata extract into the pores of the nylon fabric, and the synergistic effect between the silicone softener and the Eclipta prostrata extract forms a strong color-preserving effect on the nylon fabric, thereby reducing the impact of subsequent processes on the color difference of the nylon fabric. DETAILED DESCRIPTION

[0026] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] 1. Materials

[0028] (1) The nylon fabric of the present invention is obtained by weaving polyamide fibers, the thickness of the warp and weft yarns are both 40D, the warp density is 60 yarns / cm, and the weft density is 45 yarns / cm;

[0029] (2) The silicone softener of the present invention is any one or more of aminopolysiloxane and polydimethylsiloxane;

[0030] (3) The fluffy softener of the present invention is any one or more of fatty acid sulfate, distearyl succinic acid sulfonate, and pentaerythritol fatty acid ester;

[0031] (4) The Eclipta prostrata extract of the present invention is obtained by extracting fresh Eclipta prostrata. The specific method is: take the stems of fresh Eclipta prostrata, grind them, soak them in an ethanol solution with a pH value of 7-8 and a volume percentage concentration of 68% to 80% for 1-2 hours, and then extract them. The solution obtained by extraction is filtered and concentrated to obtain the Eclipta prostrata extract.

[0032] 2. Methods

[0033] 2.1 In order to explore the effect of the process on the performance of mirror nylon fabric, Example 1, Blank Group 1 and Comparative Examples 1-3 were set up as follows:

[0034] Example 1

[0035] A method for preparing a mirror-finished nylon fabric comprises the following steps:

[0036] Step 1: Select nylon fabric, perform a first calendering treatment on the nylon fabric, and then wash the nylon fabric with a first washing solution, wherein the washing solution is composed of a silicone softener, an Eclipta prostrata extract, and water;

[0037] Step 2: performing a second calendering treatment on the nylon fabric treated in step 1, and then washing the nylon fabric for a second time using a second washing solution, wherein the second washing solution is composed of a fluffy softener and water;

[0038] Step 3: Perform a third calendering treatment on the nylon fabric treated in step 2 to obtain a mirror nylon fabric.

[0039] Regarding the processing parameters of each step (temperature, machine speed, roller surface pressure of each calendering treatment) and the specific raw materials used in the above steps 1, 2 and 3, they are shown in Table 1:

[0040] Table 1 Preparation conditions and materials of mirror nylon fabric

[0041]

[0042]

[0043] Note: “-” means not used.

[0044] The difference between the preparation method of the medium mirror nylon fabric in blank group 1 and that in Example 1 is that no washing liquid is added in steps 1 and 2 and washing is performed directly.

[0045] Comparative Example 1

[0046] In this comparative example, the difference from Example 1 is that in step 1, water washing is performed directly without adding water washing liquid 1.

[0047] Comparative Example 2

[0048] In this comparative example, the difference from Example 1 is that in step 2, water washing is performed directly without adding water washing liquid 2.

[0049] Comparative Example 3

[0050] A method for preparing a mirror-finished nylon fabric comprises the following steps:

[0051] Step 1: Select nylon fabric, perform a first calendering treatment on the nylon fabric, and then wash the nylon fabric with a first washing solution, wherein the washing solution is composed of a fluffy softener and water;

[0052] The dosage of the fluffy softener is 32g / L, and the fluffy softener is pentaerythritol fatty acid ester;

[0053] During the calendering process, the surface temperature of the metal calendering roller was 160°C, the speed was 26 m / min, and the roller surface pressure of the metal calendering roller was 6 MPa;

[0054] Step 2: performing a second calendering treatment on the nylon fabric treated in step 1, and then washing the nylon fabric for a second time with a second washing solution, wherein the second washing solution comprises a silicone softener, an Eclipta prostrata extract, and water;

[0055] The dosage of silicone softener is 28g / L, and the silicone softener is polydimethylsiloxane;

[0056] The dosage of Eclipta prostrata extract is 37 g / L;

[0057] During the calendering process, the surface temperature of the metal calendering roller was 180°C, the speed was 30m / min, and the roller surface pressure of the metal calendering roller was 4MPa;

[0058] Step 3: Perform a third calendering treatment on the nylon fabric treated in step 2 to obtain a mirror-finished nylon fabric;

[0059] During the calendering process, the surface temperature of the metal calendering roller is 45°C, the vehicle speed is 40m / min, and the roller surface line pressure of the metal calendering roller is 5MPa.

[0060] The mirror nylon fabrics produced according to the above Example 1, the blank group, and comparative examples 1-3 were subjected to color fastness test, antibacterial test, softness test and air permeability test.

[0061] The color fastness test method is based on the determination methods of GB / T 3920-2008 "Textiles - Tests for color fastness to rubbing" and GB / T3922-1995 "Textiles - Test method for color fastness to perspiration". The GB250 gray sample card for evaluating color change is used. The basic gray card consists of five pairs of matte gray small cards (or cloth cards). It is divided into five fastness levels according to the distinguishable color difference, namely 5, 4, 3, 2, and 1. Half a level is added in every two levels, namely 4-5, 3-4, 2-3, and 1-2, expanding it to a five-level, nine-grade gray card. Among them, 5 is the best color fastness.

[0062] The antibacterial test method is based on the determination method of GB / T20944.2-2007;

[0063] The softness test method uses a 10-person rating method to conduct a subjective rating of the mirror nylon fabric by touch. The lower the feel level, the worse the feel of the mirror nylon fabric, and the higher the feel level, the better the feel of the mirror nylon fabric. The ratings are divided into 1-6, with 1 being the best and 6 being the worst.

[0064] The air permeability test method is based on the test method of GB / T5453 "Test method of air permeability of textile fabrics";

[0065] The specific test data are shown in Table 2:

[0066] Table 2 Experimental test data

[0067]

[0068] Conclusion: According to the data in Table 2, the mirror nylon fabric prepared according to the preparation method of the present invention has good color fastness to friction and perspiration, and also has good antibacterial rate and softness and can maintain the air permeability of the original nylon fabric.

[0069] Comparison of the preparation methods of Comparative Examples 1-3 and the blank group with the preparation method of Example 1 shows that after the first calendering treatment, the nylon fabric is washed with a silicone softener, an Eclalphia extract, and water, and then subjected to a second calendering treatment. The second calendering treatment allows the silicone softener and the Eclalphia extract attached to the nylon fabric to be evenly dispersed into the pores of the nylon fabric, thereby providing a certain protective effect on the nylon fabric. The prepared mirror nylon fabric has good softness, improves the color fastness to friction and perspiration of the mirror nylon fabric, and also improves the antibacterial properties of the mirror nylon fabric.

[0070] After the second calendering treatment, the nylon fabric is washed with a fluffy softener and water, which can improve the air permeability of the mirror nylon fabric. If the nylon fabric is washed with a fluffy softener and water for the first time, the fibers will become fluffy, and then after the second calendering treatment, the fluffy fibers will tightly cover the surface of the nylon fabric, which will easily reduce the air permeability of the mirror nylon fabric.

[0071] 2.2 In order to explore the effects of different water washing solutions on the properties of mirror nylon fabrics during calendering, based on the calendering process parameters of Example 1, Examples 2-5 and Comparative Examples 1-2 were set up, where the composition and amount of the water washing solutions used are shown in Table 3:

[0072] Table 3 Materials for water washing solution of Examples 1-6 and Comparative Examples 4-5

[0073]

[0074] The test method is as shown in Example 1, and the test data are shown in Table 4:

[0075] Table 4 Experimental test data

[0076]

[0077]

[0078] Experimental conclusion: According to the data in Table 2 and Table 4, the mirror nylon fabric prepared according to the preparation method of Example 5 has the best color fastness to friction, color fastness to perspiration, antibacterial rate, softness, and breathability. Therefore, Example 5 is the best embodiment, that is, the silicone softener is polydimethylsiloxane and the fluffy softener is distearyl succinate sulfonate;

[0079] Specifically, polydimethylsiloxane and Eclipta prostrata extract are used together for the first washing of nylon fabrics. Through the synergistic effect of each other, the color fastness to friction and perspiration as well as the antibacterial properties of the mirror nylon fabric are improved.

[0080] The mirror nylon fabric prepared by using a silicone softener and an Eclampsia chinensis extract for the first washing and a fluffy softener for the second washing has higher color fastness to friction, color fastness to sweat, antibacterial property, softness and breathability than the mirror nylon fabric prepared by using a fluffy softener for the first washing and a silicone softener and Eclampsia chinensis extract for the second washing. It is speculated that the Eclampsia chinensis extract is stably infiltrated into the pores of the nylon fabric by the silicone softener, and the synergistic effect between the silicone softener and the Eclampsia chinensis extract forms a stronger color retention effect on the nylon fabric, which can reduce the influence of color difference on the nylon fabric caused by subsequent processes.

[0081] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A method for preparing a mirror-finished nylon fabric, characterized in that: The following steps are involved: Step 1: Select nylon fabric and perform a first calendering treatment on the nylon fabric at a temperature of 170-180° C. After the treatment, the nylon fabric is washed for the first time with a washing solution 1, wherein the washing solution 1 is composed of a silicone softener, an Eclipta prostrata extract, and water; The method for obtaining the Eclipta prostrata extract comprises: taking fresh Eclipta prostrata stems, crushing them, soaking them in an ethanol solution with a pH value of 7-8 and a volume percentage concentration of 68% to 80% for 1-2 hours, and then extracting them; filtering and concentrating the solution obtained to obtain the Eclipta prostrata extract; The amount of the silicone softener is 20-35 g / L, and the silicone softener is any one or more of aminopolysiloxane and polydimethylsiloxane; The dosage of the Eclipta prostrata extract is 30-50 g / L; Step 2: performing a second calendering treatment on the nylon fabric treated in step 1 at a temperature of 160-170° C., and then washing the nylon fabric for a second time with a second washing solution, wherein the second washing solution is composed of a fluffy softener and water; The fluffy softener is used in an amount of 25-35 g / L, and the fluffy softener is any one or more of fatty acid sulfate, distearyl succinic acid sulfonate, and pentaerythritol fatty acid ester; Step 3: Perform a third calendering treatment at a temperature of 30-45° C. on the nylon fabric treated in step 2 to obtain a mirror-finished nylon fabric; During the three calendering treatments, the pressure is 4-6 MPa.

2. The method for preparing a mirror-finished nylon fabric according to claim 1, wherein: In step 1, the thickness of the warp yarn and the weft yarn of the nylon fabric are both 40D, the warp density is 55-65 yarns / cm, and the weft density is 40-50 yarns / cm.

3. The method for preparing a mirror-finished nylon fabric according to claim 1, wherein: The speed of the first calendering treatment is 20-30m / min; The speed of the second calendering treatment is 20-30m / min; The speed of the third calendering treatment is 30-50m / min.

4. A mirror nylon fabric, characterized by: The product is prepared by the preparation method according to any one of claims 1 to 3.

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