Machine-washable wool and real silk outdoor fabric and preparation method thereof

Abstract

The invention relates to a machine washable wool and real silk outdoor fabric and a preparation method thereof, and relates to the technical field of fabric preparation, the wool and real silk outdoor fabric is obtained by weaving with wool fiber blended bio-based nylon 510 fibers as warp yarns and real silk fiber blended bio-based nylon 510 fibers as weft yarns; wherein the wool fibers and the real silk fibers are subjected to the following functional finishing: firstly, the wool fibers and the real silk fibers are subjected to thermal shrinkage treatment, and then the wool fibers and the real silk fibers subjected to the thermal shrinkage treatment are padded by using functional finishing liquid; the functional finishing liquid is prepared from the following components in percentage by mass: 80 to 90 percent of fluorine-containing polymer emulsion, 5 to 10 percent of nano-scale ceramic powder, 1 to 5 percent of cross-linking agent and 1 to 5 percent of anionic surfactant. The fabric provided by the invention has excellent outdoor wearability, and solves the problem that the traditional wool or real silk fabric is not resistant to machine washing and is not easy to care.

Description

Technical Field

[0001] The invention belongs to the technical field of fabric preparation, and in particular relates to a machine-washable wool and silk outdoor fabric and a preparation method thereof. Background Art

[0002] At present, with the growing demand for light, comfortable and multifunctional clothing, in order to adapt to the changes in market demand, new wool textile products are gradually developing towards light, easy-to-care casual sportswear. Wool fiber is a pure natural renewable fiber. Due to its excellent warmth retention, elasticity, hygroscopicity and other characteristics, it is often used in medium-thick winter clothing fabrics. Silk fiber, that is, silk fiber, is mainly composed of animal protein and has a cool feeling. It has good air permeability and hygroscopicity and is often used in summer clothing fabrics.

[0003] The strength of wool fiber and silk fiber materials is lower than that of other fibers. If wool fiber, silk fiber and other high-strength fibers are first blended to obtain blended yarn, and then the blended yarn is used to weave fabrics, it can not only give full play to the advantages of wool fiber and silk fiber materials such as moisture absorption, breathability and antibacterial, but also enhance their mechanical properties, so that both can be well used in outdoor clothing. In addition, wool fiber and silk fiber materials are difficult to care for and cannot be machine washed. Fabrics woven with wool fiber and silk fiber have the problem of shrinkage and deformation when exposed to water, which greatly affects their wearing performance. Summary of the invention

[0004] The purpose of the present invention is to provide a machine washable wool silk outdoor 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] As a first aspect of the present invention, the present invention provides a machine-washable wool and silk outdoor fabric, wherein the wool and silk outdoor fabric is obtained by weaving wool fibers blended with bio-based nylon 510 fibers as warp yarns and silk fibers blended with bio-based nylon 510 fibers as weft yarns;

[0007] The wool fibers and silk fibers are both subjected to the following functional finishing: firstly, the wool fibers and silk fibers are subjected to heat shrinkage treatment, and then the heat-shrinked wool fibers and silk fibers are impregnated with a functional finishing liquid;

[0008] The functional finishing liquid comprises, by weight percentage, 80-90% of fluorine-containing polymer emulsion, 5-10% of nano-grade ceramic powder, 1-5% of cross-linking agent and 1-5% of anionic surfactant.

[0009] As a further optimization scheme of the present invention, the bio-based nylon 510 fiber is a masterbatch yarn, which is made by melt spinning of the following raw materials in percentage by mass: 2-5% masterbatch, 1-5% nano titanium dioxide, 1-5% anionic surfactant, and the remainder is nylon 510 resin chips.

[0010] As a further optimization scheme of the present invention, the fluorine-containing polymer emulsion is obtained by free radical dispersion polymerization, and comprises, by mole percentage, 80 mol % of tetrafluoroethylene, 15 mol % of hexafluoropropylene and 5 mol % of vinylidene fluoride.

[0011] As a further optimization solution of the present invention, the nano-scale ceramic powder includes nano-scale zinc oxide or nano-scale lanthanum oxide.

[0012] As a further optimization scheme of the present invention, the fiber composition of the wool silk outdoor fabric includes 35-45% wool fiber, 30-40% silk fiber and 15-35% bio-based nylon 510 fiber in terms of mass percentage.

[0013] As a second aspect of the present invention, the present invention also provides a method for preparing the machine washable wool silk outdoor fabric as described above, which specifically comprises the following steps:

[0014] (1) Weighing the formulated amount of fluorine-containing polymer emulsion, nano-ceramic powder, cross-linking agent and anionic surfactant, mixing them evenly, adjusting the pH value to 4-6, and obtaining a functional finishing solution for use;

[0015] (2) First, the wool fiber and the silk fiber are respectively placed in 90-100° C. water and boiled for 30-40 minutes to complete the heat shrinkage treatment, then, the functional finishing liquid is added to the water so that its mass concentration is controlled to be 4%, and the wool fiber and the silk fiber that have been heat-shrunk are respectively immersed in the water containing the functional finishing liquid for 10-20 minutes, and the bath ratio is 1:30-40. After the immersion, the fibers are squeezed and the pressing rate is controlled to be 40-60%. Finally, the fibers are pre-baked at 100° C. for 2 minutes and baked at 150° C. for 2 minutes to complete the functional finishing;

[0016] (3) The wool fiber obtained by the treatment in step (2) is blended with the bio-based nylon fiber to obtain the warp yarn, and the silk fiber obtained by the treatment in step (2) is blended with the bio-based nylon fiber to obtain the weft yarn, and then the warp yarn and the weft yarn are weaved to obtain the machine washable wool silk outdoor fabric.

[0017] As a further optimization scheme of the present invention, in step (3), the weaving density of the warp yarn is 60-80 strands / inch, the weaving density of the weft yarn is 50-70 strands / inch, and the weaving structure of the warp yarn and the weft yarn is a small grid with a size of 0.2-0.6cm×0.2-0.6cm.

[0018] The beneficial effects of the present invention are:

[0019] (1) The wool and silk outdoor fabric of the present invention is obtained by weaving wool fiber blended with bio-based nylon 510 fiber as warp yarn and silk fiber blended with bio-based nylon 510 fiber as weft yarn. The bio-based nylon 510 fiber with excellent strength performance is blended with wool fiber and silk fiber to form a blended yarn, and then the blended yarn is used to weave the fabric, so that the breathability, moisture absorption and wearing comfort of the wool fiber and silk fiber materials can be fully utilized, while giving the fabric better outdoor wear performance.

[0020] (2) The present invention first performs a heat shrinkage treatment on the wool fibers and silk fibers, then uses a functional finishing liquid to impregnate the heat-shrinked wool fibers and silk fibers, and designs and improves the composition of the functional finishing liquid to improve the fabric's resistance to machine washing deformation and shrinkage, thereby solving the problem that the wool fabric is not resistant to machine washing and is difficult to care for to a certain extent. DETAILED DESCRIPTION

[0021] 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.

[0022] 1. Materials and Methods

[0023] In the following examples, any method not specified may be carried out according to conventional methods, and other materials, reagents, etc. used may be obtained through commercial channels unless otherwise specified.

[0024] Wool fiber and silk fiber are both obtained through commercial methods. The preparation of wool fiber and silk fiber (silk fiber) generally involves pretreatment, woolen spinning (stretching, combining), fine spinning (twisting) and dyeing, which will not be elaborated here.

[0025] The bio-based nylon fiber is a masterbatch yarn, and its preparation method is as follows: firstly, nano titanium dioxide, a cross-linking agent CX-100 and an anionic surfactant (sodium dodecylbenzene sulfonate) are blended with nylon 510 resin chips accounting for 1 / 5 of the total amount according to the formula amount, and then mixed in a high-speed mixer and sent to a twin-screw granulator for blending and melt granulation, the melt temperature is 280°C, the masterbatch obtained by granulation is mixed with the remaining nylon 510 resin chips and vacuum dried (vacuum degree is less than 0.2 mmHg, drying temperature is 120°C, time is 4h), and then blended with the masterbatch of the formula amount, and the blend is sent to a melt spinning machine for spinning, and then the bio-based nylon 510 masterbatch yarn is obtained through post-treatment such as drawing and cooling. The linear density of the bio-based nylon 510 masterbatch yarn is determined according to the blending ratio with wool fiber or silk fiber and the linear density of the blended yarn.

[0026] The fluorine-containing polymer emulsion is obtained by free radical dispersion polymerization, and comprises 80 mol % of tetrafluoroethylene, 15 mol % of hexafluoropropylene and 5 mol % of vinylidene fluoride in terms of molar percentage. The solid content of the fluorine-containing polymer emulsion is 25 wt %. 2. Specific embodiments

[0028] Example 1

[0029] The machine-washable wool and silk outdoor fabric provided in this embodiment comprises, by weight percentage, 45% wool fiber, 30% silk fiber and 25% bio-based nylon 510 fiber.

[0030] The preparation method specifically comprises the following steps:

[0031] (1) According to the mass percentage, 80% of fluorine-containing polymer emulsion, 10% of nano-grade lanthanum oxide, 5% of cross-linking agent CX-100 and 5% of anionic surfactant (sodium dodecylbenzene sulfonate) are mixed and the pH value is adjusted to 4-6 to obtain a functional finishing solution for use;

[0032] (2) First, the wool fiber and the silk fiber are respectively placed in 100° C. water and boiled for 30 minutes to complete the heat shrinkage treatment, then, the functional finishing liquid is added into the water so that its mass concentration is controlled to be 4%, and the heat-shrinked wool fiber and the silk fiber are respectively immersed in the water containing the functional finishing liquid for 10 minutes, and the bath ratio is 1:30. After the immersion, the fibers are squeezed and the pressing rate is controlled to be 40%. Finally, the fibers are pre-baked at 100° C. for 2 minutes and baked at 150° C. for 2 minutes to complete the functional finishing;

[0033] (3) Bio-based nylon 510 fiber is made by melt spinning of the following raw materials in percentage by weight: 5% masterbatch, 5% nano titanium dioxide, 1% anionic surfactant, and the remainder is nylon 510 resin chips. The wool fiber obtained by step (2) is blended with the bio-based nylon 510 fiber to obtain warp yarn, and the silk fiber obtained by step (2) is blended with the bio-based nylon 510 fiber to obtain weft yarn. The specific blending ratio of the warp yarn and the weft yarn is determined according to the composition of each fiber component in the fabric and the weaving density of the warp yarn and the weft yarn. Then, the warp yarn and the weft yarn are woven, the weaving density of the warp yarn is 80 strands / inch, and the weaving density of the weft yarn is 50 strands / inch. The weaving structure of the warp yarn and the weft yarn is a small grid with a size of 0.2 cm×0.2 cm, and a machine washable wool silk outdoor fabric can be obtained.

[0034] Example 2

[0035] The machine washable wool and silk outdoor fabric provided in this embodiment comprises, by weight percentage, 35% wool fiber, 40% silk fiber and 25% bio-based nylon 510 fiber.

[0036] The preparation method specifically comprises the following steps:

[0037] (1) According to the mass percentage, 90% of fluorine-containing polymer emulsion, 5% of nano-grade lanthanum oxide, 2% of cross-linking agent CX-100 and 3% of anionic surfactant (sodium dodecylbenzene sulfonate) are mixed and the pH value is adjusted to 4-6 to obtain a functional finishing solution for use;

[0038] (2) First, the wool fiber and the silk fiber are placed in 90° C. water and boiled for 40 minutes to complete the heat shrinkage treatment, then, the functional finishing liquid is added to the water so that its mass concentration is controlled to be 4%, and the heat-shrinked wool fiber and silk fiber are immersed in the water containing the functional finishing liquid for 20 minutes, and the bath ratio is 1:40. After the immersion, the fibers are squeezed and the pressing rate is controlled to be 60%. Finally, the fibers are pre-baked at 100° C. for 2 minutes and baked at 150° C. for 2 minutes to complete the functional finishing;

[0039] (3) Bio-based nylon 510 fiber is made by melt spinning of the following raw materials in percentage by mass: 2% masterbatch, 1% nano titanium dioxide, 5% anionic surfactant, and the remainder is nylon 510 resin chips. The wool fiber obtained by step (2) is blended with the bio-based nylon 510 fiber to obtain warp yarn, and the silk fiber obtained by step (2) is blended with the bio-based nylon 510 fiber to obtain weft yarn. The specific blending ratio of the warp yarn and the weft yarn is determined according to the composition of each fiber component in the fabric and the weaving density of the warp yarn and the weft yarn. Then, the warp yarn and the weft yarn are woven, the weaving density of the warp yarn is 60 strands / inch, and the weaving density of the weft yarn is 70 strands / inch. The weaving structure of the warp yarn and the weft yarn is a small grid with a size of 0.6 cm×0.6 cm, and a machine-washable wool silk outdoor fabric can be obtained.

[0040] Example 3

[0041] The machine-washable wool and silk outdoor fabric provided in this embodiment comprises, by weight percentage, 40% wool fiber, 35% silk fiber and 25% bio-based nylon 510 fiber.

[0042] The preparation method specifically comprises the following steps:

[0043] (1) According to the mass percentage, 85% of fluorine-containing polymer emulsion, 8% of nano-alumina, 5% of cross-linking agent CX-100 and 2% of anionic surfactant (sodium dodecylbenzene sulfonate) are mixed and the pH value is adjusted to 4-6 to obtain a functional finishing solution for use;

[0044] (4) First, the wool fiber and the silk fiber are respectively placed in 100° C. water and boiled for 30 minutes to complete the heat shrinkage treatment, then, the functional finishing liquid is added to the water so that its mass concentration is controlled to be 4%, and the wool fiber and the silk fiber that have undergone heat shrinkage treatment are respectively immersed in the water containing the functional finishing liquid for 20 minutes, and the bath ratio is 1:40. After immersion, the fibers are squeezed and the pressing rate is controlled to be 50%. Finally, the fibers are pre-baked at 100° C. for 2 minutes and baked at 150° C. for 2 minutes to complete the functional finishing;

[0045] (5) Bio-based nylon 510 fiber is made by melt spinning of the following raw materials in percentage by mass: 4% masterbatch, 3% nano titanium dioxide, 3% anionic surfactant, and the remainder is nylon 510 resin chips. The wool fiber obtained by step (2) is blended with the bio-based nylon 510 fiber to obtain warp yarn, and the silk fiber obtained by step (2) is blended with the bio-based nylon 510 fiber to obtain weft yarn. The specific blending ratio of the warp yarn and the weft yarn is determined according to the composition of each fiber component in the fabric and the weaving density of the warp yarn and the weft yarn. Then, the warp yarn and the weft yarn are woven, the weaving density of the warp yarn is 70 strands / inch, and the weaving density of the weft yarn is 60 strands / inch. The weaving structure of the warp yarn and the weft yarn is a small grid with a size of 0.6 cm×0.6 cm, and a machine-washable wool silk outdoor fabric can be obtained.

[0046] 3. Verification Test

[0047] 1. In order to explore whether the fabrics prepared in Examples 1-3 have good outdoor wear performance, the evaluation criteria for the three key performances of air permeability, bursting performance, and moisture absorption and quick drying of each layer of outdoor sports fabrics were determined with reference to GB / T5453-1997, GB / T19976-2005, GB / T21655.2-2009 and the special requirements for outdoor sports fabrics, as shown in Table 1. Among them, air permeability, bursting performance, and moisture absorption and quick drying are represented by air permeability, bursting strength, and liquid moisture management capacity OMMC, respectively.

[0048] Table 1. Outdoor fabric performance evaluation criteria

[0049]

[0050] The fabrics prepared in Examples 1-3 were respectively tested for air permeability using the YG461E-III fully automatic air permeability meter in accordance with GB / T5453-1997 "Determination of air permeability of textile fabrics". The bursting performance of the fabrics was tested using the HD026N electronic fabric bursting strength meter in accordance with GB / T19976-2005 "Determination of bursting strength of textiles by steel ball method". The overall liquid water absorption and diffusion capacity of the fabrics was tested using the liquid water management tester in accordance with GB / T21655.2-2009 "Evaluation of moisture absorption and quick-drying properties of textiles Part 2: Dynamic moisture transfer method". In addition, 100% wool fabric and 100% silk fabric were used as control groups for the same test treatment as above.

[0051] The results are shown in Table 2.

[0052] Table 2. Performance test results statistics

[0053]

[0054] As can be seen from Table 2, compared with 100% wool fabric and 100% silk fabric, the fabrics prepared in Examples 1-3 all meet the standards of air permeability, moisture absorption and quick drying, and bursting strength of each layer of outdoor sports fabrics, and have good outdoor wear performance. The fabrics of Examples 1-3 are respectively blended with wool fiber, silk fiber and bio-based nylon 510 fiber. With the excellent strength performance of bio-based nylon 510 fiber blending, the bursting strength of the fabric is improved, and the outdoor wear performance of the fabric is improved. At the same time, the wool fiber and silk fabric can also play the breathable and moisture permeable, cold feeling and comfortable wearing performance.

[0055] 2. In order to explore the effect of functional finishing of wool fiber and silk fiber on the wearing performance of fabrics, the following comparative examples were set:

[0056] Comparative Example 1: The difference from Example 1 is step (2): the wool fiber and the silk fiber are respectively placed in 100° C. water and boiled for 30 minutes to complete the heat shrinkage treatment.

[0057] Comparative Example 2: The difference from Example 1 is step (2): adding functional finishing liquid into water so that its mass concentration is controlled to be 4%, and directly immersing the wool fibers and silk fibers that have not been heat-shrunk into water containing the functional finishing liquid for 10 minutes, with a bath ratio of 1:30. After immersion, the fibers are squeezed and the pressing rate is controlled to be 40%. Finally, the fibers are pre-baked at 100°C for 2 minutes and baked at 150°C for 2 minutes to complete the functional finishing.

[0058] Comparative Example 3: The difference from Example 1 is that the wool fiber and the silk fiber are not processed in step (2).

[0059] Comparative Example 4: The difference from Example 1 is that step (1): according to mass percentage, 90% of fluorine-containing polymer emulsion, 5% of crosslinking agent CX-100 and 5% of anionic surfactant (sodium dodecylbenzene sulfonate) are mixed, and the pH value is adjusted to 4-6 to obtain a functional finishing liquid for use;

[0060] Comparative Example 5: The difference from Example 1 is that in step (1), the functional finishing liquid of Example 1 is replaced by a commercially available non-ionic polyethylene emulsion (brand: Michelman, USA).

[0061] The fabrics prepared in Example 1 and Comparative Examples 1-5 were subjected to the following wearing performance tests.

[0062] (1) Felting test: Refer to GB8629.2001 and ISWTMNO.31 test standards, and use a fully automatic shrinkage tester to test the machine washing felt shrinkage of the fabric. Cut the fabric into 500mm×500mm specifications, and make 3 groups of marks in the warp and weft directions of the sample. Before the test, measure the distance between the marks and calculate the marked area, which is used as the original size S0 of the fabric. Then wash the fabric sample according to the standard procedure (7A+3×5A), and the washing temperature is set to 40℃. After the test, the fabric sample is balanced under standard atmospheric conditions (temperature 20±1℃, relative humidity 65±5%) for 48 hours, and measure the distance between the marks again to calculate the area S of the fabric after washing. l The felt shrinkage of the fabric is calculated using the following formula: Felting rate S% = (S0-S1) / S o ×100%.

[0063] (2) Tear resistance test: Test according to GB / T3917-1:2009 “Tear properties of fabrics - Part 1 - Determination of tear strength by impact pendulum method”.

[0064] The results are shown in Table 3.

[0065] Table 3. Felting test results

[0066]

[0067]

[0068] It can be seen from Table 3 that the felt shrinkage rate of the fabric in Example 1 is lower after testing, and the tear strength of the fabric is higher. It can be seen from Comparative Examples 1-3 compared with Example 1 that heat shrinkage treatment or functional finishing liquid finishing of wool fiber and silk fiber alone is not conducive to reducing the machine washing felt shrinkage rate of the fabric.

[0069] It can be seen from Comparative Example 4 compared with Example 1 that the composition of the functional finishing liquid has an impact on improving the tear strength of the fabric, and the addition of nano-ceramic powder such as nano-lanthanum oxide helps to improve the tear resistance of the final prepared fabric.

[0070] In addition, it can be seen from the comparison between Comparative Example 5 and Example 1 that the commercially available non-ionic polyethylene emulsion commonly used for shrink-proof finishing of fabrics can reduce the machine washing felt shrinkage rate of the fabric, but cannot improve the tear resistance of the fabric.

[0071] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A machine washable wool silk outdoor fabric, characterized in that: The wool and silk outdoor fabric is obtained by weaving wool fiber blended with bio-based nylon 510 fiber as warp yarn and silk fiber blended with bio-based nylon 510 fiber as weft yarn; The wool fibers and silk fibers are both subjected to the following functional finishing: firstly, the wool fibers and silk fibers are subjected to heat shrinkage treatment, and then the heat-shrinked wool fibers and silk fibers are impregnated with a functional finishing liquid; The functional finishing liquid comprises, by weight percentage, 80-90% of fluorine-containing polymer emulsion, 5-10% of nano-grade ceramic powder, 1-5% of cross-linking agent and 1-5% of anionic surfactant.

2. The machine washable wool silk outdoor fabric according to claim 1, characterized in that: The bio-based nylon 510 fiber is a masterbatch yarn, which is made by melt spinning of the following raw materials in percentage by mass: 2-5% masterbatch, 1-5% nano titanium dioxide, 1-5% anionic surfactant, and the remainder is nylon 510 resin chips.

3. A machine washable wool silk outdoor fabric according to claim 1, characterized in that: The fluorine-containing polymer emulsion is obtained by free radical dispersion polymerization, and comprises, by mole percentage, 80 mol % of tetrafluoroethylene, 15 mol % of hexafluoropropylene and 5 mol % of vinylidene fluoride.

4. The machine washable wool silk outdoor fabric according to claim 1, characterized in that: The nano-scale ceramic powder includes nano-scale zinc oxide or nano-scale lanthanum oxide.

5. The machine washable wool silk outdoor fabric according to claim 1, characterized in that: The fiber components of the wool silk outdoor fabric include 35-45% wool fiber, 30-40% silk fiber and 15-35% bio-based nylon 510 fiber according to mass percentage.

6. A method for preparing a machine washable wool and silk outdoor fabric according to any one of claims 1 to 5, characterized in that: The specific steps include: (1) Weighing the formulated amount of fluorine-containing polymer emulsion, nano-ceramic powder, cross-linking agent and anionic surfactant, mixing them evenly, adjusting the pH value to 4-6, and obtaining a functional finishing solution for use; (2) First, the wool fiber and the silk fiber are placed in 90-100° C. water and boiled for 30-40 minutes to complete the heat shrinkage treatment, then, the functional finishing liquid is added to the water so that its mass concentration is controlled to be 4%, and the wool fiber and the silk fiber that have been heat-shrunk are immersed in the water containing the functional finishing liquid for 10-20 minutes, and the bath ratio is 1:30-40. After the immersion, the fibers are squeezed and the pressing rate is controlled to be 40-60%. Finally, the fibers are pre-baked at 100° C. for 2 minutes and baked at 150° C. for 2 minutes to complete the functional finishing; (3) The wool fiber obtained by the treatment in step (2) is blended with the bio-based nylon fiber to obtain the warp yarn, and the silk fiber obtained by the treatment in step (2) is blended with the bio-based nylon fiber to obtain the weft yarn, and then the warp yarn and the weft yarn are weaved to obtain the machine washable wool silk outdoor fabric.

7. The method for preparing a machine washable wool silk outdoor fabric according to claim 6, characterized in that: In step (3), the weaving density of the warp yarn is 60-80 strands / inch, the weaving density of the weft yarn is 50-70 strands / inch, and the weaving structure of the warp yarn and the weft yarn is a small grid with a size of 0.2-0.6cm×0.2-0.6cm.

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