Down jacket with stain-resistant collar and manufacturing method thereof

Abstract

The present invention relates to a down jacket with a collar that is resistant to dirt and a method for making the same. The collar fabric of the down jacket is composited by an inner lining layer and an outer protective layer, and the outer protective layer is woven from polyacrylonitrile fiber and modified polyester fiber. The modified polyester fiber is prepared by fully mixing polyethylene terephthalate that has been pre-emulsified with hydroxyl ternary vinyl acetate resin and camel grass fiber that have been ultrasonically dispersed and extruding into mixed pellets, which are melted and prepared by a wet spinning process. The present invention improves the water- and oil-repellent and easy-to-decontaminate effects of the collar fabric by adding hydroxyl ternary vinyl acetate resin and camel grass fiber to the modified polyester fiber. The collar fabric is used to make the collar of the down jacket to obtain a down jacket with a collar that is resistant to dirt. The collar fabric can increase the moisture content of the collar fabric, and the moisture content remains stable. The collar fabric is softer, more comfortable to use, and can also moisturize the user's skin to prevent dryness.

Description

Technical Field

[0001] The invention belongs to the technical field of down jackets, and particularly relates to a down jacket with a stain-resistant collar and a manufacturing method thereof. Background Art

[0002] Down jackets are one of the common clothes in winter. The collars and cuffs of down jackets are easily stained. The stains on the collars mainly come from the oil secreted by the human body or the grease on the hair. In order to reduce the number of times down jackets need to be washed, the collars of down jackets are generally designed to be dirt-resistant.

[0003] In the prior art, in order to achieve the dirt-resistant function of the collar fabric, the collar fabric is usually post-treated with an easy-to-clean finishing agent or a three-proof finishing agent. The collar fabric treated with the finishing agent has the following defects: a large amount of chemical agents are added, which is very irritating to the skin. In severe cases, it may cause allergies, eczema, etc., which are easy to harm the human body; the collar fabric is less soft and less comfortable to use; down jackets are mostly worn by people in cold areas and are also commonly used by polar expedition personnel. In this case, the moisture content of the skin will drop rapidly and significantly, resulting in dry skin, peeling, itching, etc. Summary of the Invention

[0004] The purpose of the present invention is to provide a down jacket with a stain-resistant collar and a manufacturing 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 down jacket with a dirt-resistant collar, wherein the collar fabric of the down jacket is composited by an inner lining layer and an outer protective layer, wherein the outer protective layer is woven from polyacrylonitrile fiber and modified polyester fiber;

[0007] Among them, the modified polyester fiber is prepared by fully mixing polyethylene terephthalate after pre-emulsification, hydroxy ternary vinyl chloride resin after ultrasonic dispersion, and camel grass fiber and extruding them into mixed particles, and then melting the mixed particles and preparing them through a wet spinning process.

[0008] As a further optimization scheme of the present invention, the modified polyester fiber is prepared from the following raw materials by weight: 50-80 parts of polyethylene terephthalate, 5-15 parts of hydroxy ternary chloroacetic acid resin, 12-32 parts of camel grass fiber, 2-5 parts of emulsified silicone oil, 0.2-1.5 parts of amphoteric surfactant, and 0.2-1 part of coupling agent.

[0009] As a further optimized solution of the present invention, the amphoteric surfactant is one of dodecylethoxysulfobetaine, dodecyldimethylsulfopropylbetaine, and alkyldimethylhydroxypropylphosphate betaine.

[0010] As a further optimization solution of the present invention, the coupling agent is one of a silane coupling agent and a titanate coupling agent.

[0011] As a further optimization solution of the present invention, the modified polyester fiber preparation method is specifically as follows:

[0012] Step 1: pre-emulsifying polyethylene terephthalate by fully mixing half of the emulsified silicone oil and half of the amphoteric surfactant to obtain a mixture 1;

[0013] Step 2: crushing the camel grass fiber and subjecting it to ultrasonic dispersion treatment with the remaining emulsified silicone oil, the remaining amphoteric surfactant, and the hydroxy ternary chloroacetic acid resin under a heating environment to obtain a second mixture;

[0014] Step 3: Mix the mixture 1, the mixture 2 and the coupling agent thoroughly, let them stand and keep warm for 8 to 12 hours, then extrude the mixed pellets using a screw extruder, heat and melt the mixed pellets and prepare the modified polyester fiber using a wet spinning process.

[0015] As a further optimization scheme of the present invention, in step 1, the pre-emulsification treatment temperature is 250°C to 255°C, the pre-emulsification treatment time is 20 to 30 minutes, and stirring is continued during the pre-emulsification process at a stirring speed of 2000 to 2400 r / min.

[0016] As a further optimization solution of the present invention, the camel grass fiber is obtained by washing, cutting, steaming, softening and drying the camel grass roots, and the softening is a hydrothermal method with a hydrothermal temperature of 60 to 80°C.

[0017] As a further optimization scheme of the present invention, in step 2, the camel grass fiber is crushed to a length of 2 to 7 mm, the ultrasonic dispersion time is 20 to 30 min, the ultrasonic dispersion wave frequency is 20 to 35 KHz, and the ultrasonic dispersion speed is 4000 to 5600 r / min.

[0018] As a further optimization solution of the present invention, in step three, the insulation temperature is 260°C to 265°C.

[0019] A method for manufacturing a down jacket with a stain-resistant collar comprises the following steps: using polyacrylonitrile fiber and modified polyester fiber as warp and weft to weave an outer protective layer; hot-pressing the inner lining layer and the outer protective layer with a hot-pressing roller to obtain a collar fabric; sewing the collar fabric into a down jacket collar and sewing the collar fabric to the down jacket body to obtain the down jacket with a stain-resistant collar.

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

[0021] 1) The present invention improves the water- and oil-repellent and easy-to-decontaminate effects of the collar fabric by adding hydroxyl ternary chloroacetic acid resin and camel grass fiber when preparing modified polyester fiber. When the collar fabric is used to make the collar of a down jacket, a down jacket with a stain-resistant collar can be obtained. The collar fabric can also increase the moisture content of the collar fabric, thereby making the collar fabric softer and more comfortable to use. The collar fabric can also effectively moisturize the user's skin and prevent dryness.

[0022] 2) In the present invention, the moisture content of the collar fabric can be increased by using the hydroxy ternary chloroacetic acid resin and the camel grass fiber, and can remain stable even after multiple washings. The moisture content of the collar fabric is stable and high, has good moisturizing properties for the user's skin, and the effect is long-lasting, thereby preventing dry skin.

[0023] 3) The camel grass fiber used in the present invention is natural and safer. DETAILED DESCRIPTION

[0024] 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.

[0025] A down jacket with a dirt-resistant collar, wherein the collar fabric of the down jacket is composited by an inner lining layer and an outer protective layer, wherein the outer protective layer is woven from polyacrylonitrile fiber and modified polyester fiber;

[0026] Among them, the modified polyester fiber is prepared by fully mixing polyethylene terephthalate after pre-emulsification, hydroxy ternary vinyl chloride resin after ultrasonic dispersion, and camel grass fiber and extruding them into mixed particles, and then melting the mixed particles and preparing them through a wet spinning process.

[0027] A method for manufacturing a down jacket with a stain-resistant collar is specifically as follows:

[0028] (1) Using polyacrylonitrile fiber and modified polyester fiber as warp and weft to weave an outer protective layer;

[0029] (2) The inner lining layer and the outer protective layer are hot-pressed and laminated by hot-pressing rollers to obtain the collar fabric;

[0030] (3) The collar fabric is sewn into the collar of the down jacket and the collar fabric is sewn together with the down jacket body to obtain a down jacket with a collar that is resistant to dirt.

[0031] Example 1

[0032] The modified polyester fiber is prepared from the following raw materials by weight: 76.6 parts of polyethylene terephthalate, 6 parts of hydroxy ternary vinyl chloride resin, 12 parts of camel grass fiber, 5 parts of emulsified silicone oil, 0.2 parts of amphoteric surfactant, and 0.2 parts of coupling agent.

[0033] The camel grass fiber is obtained by washing, cutting, steaming, softening and drying the camel grass root system, wherein the softening is performed by a hydrothermal method at a hydrothermal temperature of 60°C.

[0034] The modified polyester fiber preparation method is specifically as follows:

[0035] Step 1: Pre-emulsifying polyethylene terephthalate by fully mixing half of the emulsified silicone oil and half of the dodecyl ethoxy sulfobetaine to obtain a mixture 1, wherein the pre-emulsification temperature is 250° C., the pre-emulsification time is 20 min, and stirring is continued during the pre-emulsification process at a stirring speed of 2000 r / min;

[0036] Step 2: crushing the camel grass fiber and ultrasonically dispersing it with the remaining emulsified silicone oil, the remaining dodecylethoxysulfobetaine, and the hydroxy ternary chloroacetic acid resin under a heated environment to obtain a second mixture, wherein the crushed camel grass fiber has a length of 2 mm, the ultrasonic dispersion time is 20 minutes, the ultrasonic dispersion wave frequency is 20 kHz, and the ultrasonic dispersion speed is 4000 r / min;

[0037] Step 3: Mix mixture 1, mixture 2 and silane coupling agent thoroughly, let it stand and keep warm for 8 hours at a temperature of 260° C., then extrude mixed pellets using a screw extruder, heat and melt the mixed pellets, and prepare modified polyester fibers using a wet spinning process.

[0038] Among them, the silane coupling agent is silane coupling agent KH-792 (KH-900).

[0039] Example 2

[0040] The modified polyester fiber is prepared from the following raw materials by weight: 56 parts of polyethylene terephthalate, 12 parts of hydroxy ternary vinyl chloride resin, 26 parts of camel grass fiber, 4 parts of emulsified silicone oil, 1.2 parts of amphoteric surfactant, and 0.8 parts of coupling agent.

[0041] The camel grass fiber is obtained by washing, cutting, steaming, softening and drying the camel grass root system. The softening is performed by a hydrothermal method at a hydrothermal temperature of 70°C.

[0042] The modified polyester fiber preparation method is specifically as follows:

[0043] Step 1: Pre-emulsifying polyethylene terephthalate by fully mixing half of the emulsified silicone oil and half of the alkyl dimethyl hydroxypropyl phosphate betaine to obtain a mixture 1, wherein the pre-emulsification temperature is 253° C., the pre-emulsification time is 26 min, and stirring is continued during the pre-emulsification process at a stirring speed of 2300 r / min;

[0044] Step 2: crushing the camel grass fiber and ultrasonically dispersing it with the remaining emulsified silicone oil, the remaining amphoteric surfactant, and the hydroxy ternary vinyl acetate resin under a heated environment to obtain a second mixture, wherein the crushed camel grass fiber has a length of 5 mm, the ultrasonic dispersion time is 25 minutes, the ultrasonic dispersion wave frequency is 30 kHz, and the ultrasonic dispersion speed is 5200 r / min;

[0045] Step 3: Mix mixture 1, mixture 2 and silane coupling agent thoroughly, let them stand and keep warm for 10 hours at a temperature of 262° C., then extrude mixed pellets using a screw extruder, heat and melt the mixed pellets, and prepare modified polyester fibers using a wet spinning process.

[0046] Among them, the silane coupling agent is silane coupling agent KH-792 (KH-900).

[0047] Example 3

[0048] The modified polyester fiber is prepared from the following raw materials by weight: 50 parts of polyethylene terephthalate, 15 parts of hydroxy ternary vinyl chloride resin, 32 parts of camel grass fiber, 2 parts of emulsified silicone oil, 0.5 parts of amphoteric surfactant, and 0.5 parts of coupling agent.

[0049] The camel grass fiber is obtained by washing, cutting, steaming, softening and drying the camel grass root system. The softening is performed by a hydrothermal method at a hydrothermal temperature of 80°C.

[0050] The modified polyester fiber preparation method is specifically as follows:

[0051] Step 1: pre-emulsifying polyethylene terephthalate by fully mixing half of the emulsified silicone oil and half of the dodecyl dimethyl sulfonyl betaine to obtain a mixture 1, wherein the pre-emulsification temperature is 255° C., the pre-emulsification time is 30 min, and stirring is continued during the pre-emulsification process at a stirring speed of 2400 r / min;

[0052] Step 2: crushing the camel grass fiber and ultrasonically dispersing it with the remaining emulsified silicone oil, the remaining amphoteric surfactant, and the hydroxy ternary vinyl acetate resin under a heated environment to obtain a second mixture, wherein the crushed camel grass fiber has a length of 7 mm, the ultrasonic dispersion time is 30 minutes, the ultrasonic dispersion wave frequency is 35 kHz, and the ultrasonic dispersion speed is 5600 r / min;

[0053] Step 3: Mix mixture 1, mixture 2 and titanate coupling agent thoroughly, let stand and keep warm for 12 hours at a temperature of 265° C., then extrude mixed pellets using a screw extruder, heat and melt the mixed pellets, and prepare modified polyester fibers using a wet spinning process.

[0054] Among them, the titanate coupling agent is titanate coupling agent NDZ-201.

[0055] Comparative Example 1

[0056] A down jacket with a dirt-resistant collar. The collar fabric of the down jacket is composited by an inner lining layer and an outer protective layer, and the outer protective layer is woven from polyacrylonitrile fiber and polyester fiber.

[0057] A method for manufacturing a down jacket with a stain-resistant collar is specifically as follows:

[0058] (1) Using polyacrylonitrile fiber and polyester fiber as warp and weft to weave an outer protective layer;

[0059] (2) The inner lining layer and the outer protective layer are hot-pressed and laminated by hot-pressing rollers to obtain the collar fabric;

[0060] (3) The collar fabric is sewn into the collar of the down jacket and the collar fabric is sewn together with the down jacket body to obtain a down jacket with a collar that is resistant to dirt.

[0061] Comparative Example 2

[0062] A down jacket with a dirt-resistant collar, wherein the collar fabric of the down jacket is composited by an inner lining layer and an outer protective layer, wherein the outer protective layer is woven from polyacrylonitrile fiber and modified polyester fiber;

[0063] The modified polyester fiber is prepared by fully mixing polyethylene terephthalate after pre-emulsification with acrylic resin and camel grass fiber after ultrasonic dispersion and extruding into mixed particles, and then melting the mixed particles and preparing them through a wet spinning process.

[0064] A method for manufacturing a down jacket with a stain-resistant collar is specifically as follows:

[0065] (1) Using polyacrylonitrile fiber and modified polyester fiber as warp and weft to weave an outer protective layer;

[0066] (2) The inner lining layer and the outer protective layer are hot-pressed and laminated by hot-pressing rollers to obtain the collar fabric;

[0067] (3) The collar fabric is sewn into the collar of the down jacket and the collar fabric is sewn together with the down jacket body to obtain a down jacket with a collar that is resistant to dirt.

[0068] The modified polyester fiber is prepared from the following raw materials by weight: 56 parts of polyethylene terephthalate, 12 parts of acrylic resin, 26 parts of camel grass fiber, 4 parts of emulsified silicone oil, 1.2 parts of amphoteric surfactant, and 0.8 parts of coupling agent.

[0069] The camel grass fiber is obtained by washing, cutting, steaming, softening and drying the camel grass root system. The softening is performed by a hydrothermal method at a hydrothermal temperature of 70°C.

[0070] The modified polyester fiber preparation method is specifically as follows:

[0071] Step 1: Pre-emulsifying polyethylene terephthalate by fully mixing half of the emulsified silicone oil and half of the alkyl dimethyl hydroxypropyl phosphate betaine to obtain a mixture 1, wherein the pre-emulsification temperature is 253° C., the pre-emulsification time is 26 min, and stirring is continued during the pre-emulsification process at a stirring speed of 2300 r / min;

[0072] Step 2: crushing the camel grass fiber and ultrasonically dispersing it with the remaining emulsified silicone oil, the remaining amphoteric surfactant, and the acrylic resin under a heated environment to obtain a second mixture, wherein the crushed camel grass fiber has a length of 5 mm, the ultrasonic dispersion time is 25 minutes, the ultrasonic dispersion wave frequency is 30 kHz, and the ultrasonic dispersion speed is 5200 r / min;

[0073] Step 3: Mix mixture 1, mixture 2 and silane coupling agent thoroughly, let them stand and keep warm for 10 hours at a temperature of 262° C., then extrude mixed pellets using a screw extruder, heat and melt the mixed pellets, and prepare modified polyester fibers using a wet spinning process.

[0074] Among them, the silane coupling agent is silane coupling agent KH-792 (KH-900).

[0075] Comparative Example 3

[0076] A down jacket with a dirt-resistant collar, wherein the collar fabric of the down jacket is composited by an inner lining layer and an outer protective layer, wherein the outer protective layer is woven from polyacrylonitrile fiber and modified polyester fiber;

[0077] Among them, the modified polyester fiber is prepared by fully mixing polyethylene terephthalate after pre-emulsification, hydroxy ternary vinyl chloride resin after ultrasonic dispersion, and wool fiber and extruding them into mixed particles, and then melting the mixed particles and preparing them through a wet spinning process.

[0078] A method for manufacturing a down jacket with a stain-resistant collar is specifically as follows:

[0079] (1) Using polyacrylonitrile fiber and modified polyester fiber as warp and weft to weave an outer protective layer;

[0080] (2) The inner lining layer and the outer protective layer are hot-pressed and laminated by hot-pressing rollers to obtain the collar fabric;

[0081] (3) The collar fabric is sewn into the collar of the down jacket and the collar fabric is sewn together with the down jacket body to obtain a down jacket with a collar that is resistant to dirt.

[0082] The modified polyester fiber is prepared from the following raw materials by weight: 56 parts of polyethylene terephthalate, 12 parts of hydroxy ternary chloroacetic acid resin, 26 parts of wool fiber, 4 parts of emulsified silicone oil, 1.2 parts of amphoteric surfactant, and 0.8 parts of coupling agent.

[0083] The wool fiber is obtained by washing, cutting, steaming, softening and drying camel grass roots. The softening is performed by a hydrothermal method at a hydrothermal temperature of 70°C.

[0084] The modified polyester fiber preparation method is specifically as follows:

[0085] Step 1: Pre-emulsifying polyethylene terephthalate by fully mixing half of the emulsified silicone oil and half of the alkyl dimethyl hydroxypropyl phosphate betaine to obtain a mixture 1, wherein the pre-emulsification temperature is 253° C., the pre-emulsification time is 26 min, and stirring is continued during the pre-emulsification process at a stirring speed of 2300 r / min;

[0086] Step 2: crush the wool fiber and perform ultrasonic dispersion treatment with the remaining emulsified silicone oil, the remaining amphoteric surfactant, and the hydroxy ternary chloroacetic acid resin under a heated environment to obtain a second mixture, wherein the wool fiber has a length of 5 mm after crushing, the ultrasonic dispersion time is 25 min, the ultrasonic dispersion wave frequency is 30 kHz, and the ultrasonic dispersion speed is 5200 r / min;

[0087] Step 3: Mix mixture 1, mixture 2 and silane coupling agent thoroughly, let them stand and keep warm for 10 hours at a temperature of 262° C., then extrude mixed pellets using a screw extruder, heat and melt the mixed pellets, and prepare modified polyester fibers using a wet spinning process.

[0088] Among them, the silane coupling agent is silane coupling agent KH-792 (KH-900).

[0089] Experimental verification

[0090] 1. Test of moisturizing and softness of collar fabric

[0091] The sample fabrics of Examples 1-3, Comparative Examples 1-3, and Control Groups 1-3 were tested for moisturizing and softness, with 30 collar fabrics in each group. The moisturizing test was carried out according to the determination method of "T / CTES1035-2021". It should be emphasized that when testing the collar fabrics of Examples 1-3 and Comparative Examples 1-3, it is not necessary to use sodium hyaluronate moisturizing agent. Sodium hyaluronate moisturizing agent is only used in the experiments of Control Groups 1-3.

[0092] In the control group experiment, the collar fabrics produced by comparative examples 1-3 were labeled as control group 1, control group 2, and control group 3, and the collar fabrics were impregnated with a sodium hyaluronate moisturizer. The sodium hyaluronate moisturizer used was a hyaluronic acid skin care processing agent HTA620, and the dosage was 40-60 g / L. The collar fabric was impregnated (liquid pressing rate 78%) and dried (temperature 60°C) to obtain a collar fabric as a sample fabric.

[0093] The softness test is specifically to have 10 testers touch the sample with their hands and faces, and record the softness level in turn. The softness level is 1-10, with 1 being the worst softness and 10 being the best softness.

[0094] The test results are shown in Table 1:

[0095] Table 1

[0096]

[0097] Note: The above data have been verified by variance.

[0098] Experimental conclusion: According to the data in Table 1, the collar fabrics produced according to Examples 1-3 all have good moisture content and can remain stable even after multiple washings. The moisture content of the collar fabric is stable and high, and it has good moisturizing properties for the user's skin. The effect is long-lasting, avoiding dry skin, and can also improve the comfort of the collar fabric. Therefore, the collar of the down jacket using the collar fabric has excellent moisturizing and softness. Among them, in the process of modifying the polyester fiber, hydroxy ternary chloroacetic acid resin and camel grass fiber play a decisive role in improving the softness and moisturizing properties of the collar fabric.

[0099] 2. Dirt resistance test of collar fabric

[0100] The sample fabrics of Examples 1-3 and Comparative Examples 1-3 were subjected to a dirt resistance test, with 30 collar fabrics in each group, and a blank group was set. The blank group was the collar fabric produced in Comparative Example 1 and treated with an easy-to-clean finishing agent. The easy-to-clean finishing agent used was an easy-to-clean finishing agent HSR2718. The collar fabric was treated by a padding process with a padding rate of 80%. The dirt resistance test was conducted in accordance with the determination method of "FZ / T01118-2012". The easy-to-clean grade and the water and oil repellency grade were both 1-10, with 1 being the worst grade and 10 being the best grade. The experimental results are shown in Table 2:

[0101] Table 2

[0102]

[0103] Note: The above data have been verified by variance.

[0104] Experimental conclusion: According to the data in Table 2, the collar fabrics produced according to Examples 1-3 have good water- and oil-repellent and easy-to-clean properties. By using the collar fabrics to make down jacket collars, down jackets with stain-resistant collars can be obtained. In addition, according to the data in Table 2, in the process of modifying polyester fibers, hydroxy ternary chloroacetic acid resin and camel grass fiber play a decisive role in improving the water- and oil-repellent and easy-to-clean effects of the collar fabrics.

[0105] 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 down jacket with a stain-resistant collar, characterized by: The collar fabric of the down jacket is composed of an inner lining layer and an outer protective layer, and the outer protective layer is woven from polyacrylonitrile fiber and modified polyester fiber; The modified polyester fiber is prepared by fully mixing polyethylene terephthalate after pre-emulsification, hydroxyl ternary vinyl acetate resin after ultrasonic dispersion, and camel grass fiber, and extruding the mixed pellets, and then melting the mixed pellets and preparing them through a wet spinning process; The modified polyester fiber is prepared from the following raw materials by weight: 50-80 parts of polyethylene terephthalate, 5-15 parts of hydroxy ternary vinyl chloride resin, 12-32 parts of camel grass fiber, 2-5 parts of emulsified silicone oil, 0.2-1.5 parts of amphoteric surfactant, and 0.2-1 part of coupling agent; The amphoteric surfactant is one of dodecyl ethoxy sulfobetaine, dodecyl dimethyl sulfopropyl betaine, and alkyl dimethyl hydroxypropyl phosphate betaine; The coupling agent is one of a silane coupling agent and a titanate coupling agent; The modified polyester fiber preparation method is specifically as follows: Step 1: pre-emulsifying polyethylene terephthalate by fully mixing half of the emulsified silicone oil and half of the amphoteric surfactant to obtain a mixture 1; Step 2: crushing the camel grass fiber and subjecting it to ultrasonic dispersion treatment with the remaining emulsified silicone oil, the remaining amphoteric surfactant, and the hydroxy ternary chloroacetic acid resin under a heating environment to obtain a second mixture; Step 3: Mix the mixture 1, the mixture 2 and the coupling agent thoroughly, let them stand and keep warm for 8 to 12 hours, then extrude the mixed pellets using a screw extruder, heat and melt the mixed pellets and prepare the modified polyester fiber using a wet spinning process.

2. The down jacket with a stain-resistant collar according to claim 1, characterized in that: In step 1, the pre-emulsification treatment temperature is 250° C. to 255° C., the pre-emulsification treatment time is 20 to 30 minutes, and stirring is continued during the pre-emulsification process at a stirring speed of 2000 to 2400 r / min.

3. The down jacket with a stain-resistant collar according to claim 1, characterized in that: The camel grass fiber is obtained by washing, cutting, steaming, softening and drying the camel grass root system, wherein the softening is a hydrothermal method.

4. The down jacket with a stain-resistant collar according to claim 3, characterized in that: In step 2, the camel grass fiber is crushed to a length of 2 to 7 mm, the ultrasonic dispersion time is 20 to 30 min, the ultrasonic dispersion wave frequency is 20 to 35 KHz, and the ultrasonic dispersion speed is 4000 to 5600 r / min.

5. The down jacket with a stain-resistant collar according to claim 1, characterized in that: In step three, the holding temperature is 260°C to 265°C.

6. A method for manufacturing a down jacket with a stain-resistant collar according to any one of claims 1 to 5, characterized in that: Polyacrylonitrile fiber and modified polyester fiber are used as warp and weft to weave an outer protective layer, and the inner lining layer and the outer protective layer are hot-pressed and compounded by a hot pressing roller to obtain the collar fabric, which is sewn into the collar of a down jacket and then sewn together with the down jacket body to produce a down jacket with a stain-resistant collar.

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