Liner-free down-proof fabric of down jacket and processing technology thereof

Abstract

The invention belongs to the technical field of down-proof fabrics, and particularly relates to a down jacket liner-free down-proof fabric and a processing technology thereof. According to the processing technology, the fabric is processed through the following procedures in sequence: cold batching, open-width washing, dyeing pretreatment, dyeing and after-finishing; in the after-treatment, calendaring treatment is carried out for not less than four times, and washing and heating beating treatment are carried out after each time or two times of calendaring treatment. The linerless down-proof fabric of the down jacket is free of peculiar smell, soft in hand feeling, good in air permeability, high in wear resistance and good and durable in down-proof effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of down-proof fabrics, and particularly relates to a down jacket non-lined down-proof fabric and its processing technology. Background Art

[0002] Down jackets are one of the common items in winter. The wearing comfort and warmth retention of down jackets are not only related to the quality of the filled down, but also have a great relationship with the down jacket fabric. Common down jacket fabrics include waterproof coated fabrics, high-density water-repellent fabrics, and ordinary woven fabrics laminated with down-proof cloth.

[0003] Among them, the waterproof coated fabric is a fabric obtained by coating and calendering the base fabric. For example, the down-proof fabrics disclosed in patents CN110055764A and CN105908520A. The coating can endow the fabric with good down-proof performance, but at the same time, it will significantly reduce the hand feeling and softness of the fabric, and the product has poor air permeability.

[0004] The high-density water-repellent fabric has a very high fabric density itself, generally above 290T. The down-proof performance is improved by a post-treatment process of fusing the surface fabric at high temperature to reduce the fabric voids. For example, the high-density down-proof chemical fiber fabric prepared in patent CN112030317A. This fabric has a high tightness, but also has poor air permeability.

[0005] The ordinary woven fabric laminated with down-proof cloth generally uses nylon or polyester with a lower density. When making a down jacket, a down-proof cloth is added inside the ordinary woven fabric to play a role in preventing down from leaking. For example, the down-proof fabric disclosed in patent CN213681485U includes a surface fabric layer and a lining finishing layer. The down-proof cloth in this fabric structure will affect the softness and air permeability of the down jacket, increase the weight of the whole garment, and the down-proof cloth is easy to break or agglomerate after multiple washings, affecting the wearing experience of the clothing.

[0006] Therefore, it is necessary to develop a down-proof fabric that not only has excellent down-proof performance but also has a soft hand feeling and good air permeability to meet the requirements of consumers for comfort. Summary of the Invention

[0007] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a down jacket non-lined down-proof fabric, which has no peculiar smell, a soft hand feeling, good air permeability, high wear resistance, and good and lasting down-proof effect; the present invention also provides its processing technology.

[0008] The processing technology of the down jacket non-lined down-proof fabric of the present invention is to process the fabric through the following processes in sequence: cold pad-batch → open-width washing → pretreatment before dyeing → dyeing → post-finishing.

[0009] In the present invention, the fabric is woven from 7D - 150D nylon fiber, polyester fiber, nylon-polyester interwoven fiber or polyester-nylon interwoven fiber, and the fabric texture is plain weave, twill weave, satin weave, jacquard or check; for example, 20D, 400T nylon plain weave fabric, etc.

[0010] Preferably, the fiber fineness of the fabric is above 12F, and monofilament or low fineness fibers cannot be used.

[0011] In the present invention, the operating conditions of the cold pad-batch process are as follows: calculated by mass parts, the cold pad-batch treatment liquid is composed of 5 - 10 parts of liquid caustic soda, 1 - 2 parts of emulsifier, 2 - 4 parts of hydrogen peroxide, and 2 - 4 parts of softener; the cold pad-batch vehicle speed is 40 - 80 km / h, and the cold pad-batch time is 36 - 72 h.

[0012] Preferably, the liquid caustic soda is a sodium hydroxide solution with a concentration of 30 - 32 wt.%; the emulsifier is Haishihua brand emulsifier OP-10; the softener is TF-4755B of Zhejiang Transfar Group Co., Ltd.

[0013] Different from the conventional cold pad-batch treatment, in the present invention, an emulsifier and a super softener are added to the cold pad-batch treatment liquid, which can not only remove the sizing agent on the surface of the fabric fibers, but also fully lubricate the fibers, endow the fabric with a soft hand feeling, restore the clean and fresh state of the fibers, and play a fundamental role in fully opening and fluffing the fibers.

[0014] In the present invention, the operating conditions of the open-width washing are as follows: calculated by mass parts, the open-width washing treatment liquid is composed of 2 - 4 parts of desizing agent, 2 - 4 parts of deoiling agent, 2 - 4 parts of scouring agent, and 300 parts of water; the vehicle speed is 40 - 100 km / h.

[0015] Preferably, the desizing agent is TF-127HF of Zhejiang Transfar Group Co., Ltd.; the deoiling agent is TF-101E of Zhejiang Transfar Group Co., Ltd.; the scouring agent is TD-179 of Zhejiang Transfar Group Co., Ltd.

[0016] In the present invention, after the cold pad-batch treatment, open-width washing is carried out, which can further clean the sizing agent and impurities on the surface of the fabric fibers.

[0017] In the present invention, the operating conditions of the pre-treatment before dyeing are as follows: calculated by mass parts, the pre-treatment liquid before dyeing is composed of 3 - 6 parts of soda ash, 1 - 2 parts of desizing agent, 1 - 2 parts of soaping agent, and 300 parts of water; the vehicle speed is 40 - 80 km / h, and it is treated for 3 passes at a temperature of 100 °C.

[0018] Preferably, the desizing agent is TF-127HF of Zhejiang Transfar Group Co., Ltd.; the soaping agent is TF-231 of Zhejiang Transfar Group Co., Ltd.

[0019] The pre-dyeing treatment is to wash it clean again in the dyeing vat to ensure that the fabric fibers are thoroughly treated before dyeing, preparing for the subsequent fluffy fibers.

[0020] In the present invention, the dyeing adopts the jig dyeing process. There are no special requirements for the operating conditions. The dyeing conditions can be selected according to the fabric material and fabric color, and a fixing treatment is carried out after dyeing.

[0021] In the present invention, not less than 4 calendering treatments are carried out in the post-treatment, and water washing and heat-beating treatments are carried out after each one or two calendering treatments.

[0022] Furthermore, preferably 4-6 calendering treatments are carried out in the post-treatment, and the number of water washing and heat-beating treatments is not less than 3 times. If the number of calendering, water washing and heat-beating treatments is too small, the fibers cannot be fully fluffed up. Calendering 4-6 times can already make the fibers fully fluffed up, and increasing the number of times will increase the processing cost.

[0023] In some preferred embodiments, the post-treatment can be carried out according to the following steps:

[0024] The first calendering, water washing and heat-beating, the second calendering, water washing and heat-beating, the third calendering, water washing and heat-beating, the fourth calendering, water washing and heat-beating, the fifth calendering, water washing and heat-beating;

[0025] Or:

[0026] The first calendering, water washing and heat-beating, the second calendering, water washing and heat-beating, the third calendering, water washing and heat-beating, the fourth calendering, water washing and heat-beating;

[0027] Or:

[0028] The first calendering, water washing and heat-beating, the second calendering, water washing and heat-beating, the third calendering, the fourth calendering, water washing and heat-beating, the fifth calendering, water washing and heat-beating;

[0029] Or:

[0030] The first calendering, water washing and heat-beating, the second calendering, the third calendering, water washing and heat-beating, the fourth calendering, the fifth calendering, water washing and heat-beating, the sixth calendering, water washing and heat-beating.

[0031] The post-treatment steps of the present invention include but are not limited to the steps listed above.

[0032] The operating conditions for each calendering are: using a film roller, with a temperature of 120-140 °C, a vehicle speed of 20-30 km / h, and a pressure of 0.5-0.8 MPa.

[0033] The operating conditions for each water washing are as follows: by mass parts, the water washing liquid is composed of 50 parts of water, 5 - 8 parts of softener, 2 - 4 parts of bulking agent, and 2 - 4 parts of penetrant; the bath ratio of the water tank is (10 - 12):1, the water temperature is 40 - 80°C, and the vehicle speed is 20 - 40 km / h.

[0034] Preferably, the softener is TF - 4755B of Zhejiang Transfar Group Co., Ltd.; the bulking agent is H8902 of Guangzhou Honghua Chemical Co., Ltd.; the penetrant is Haishihua brand penetrant OE - 35.

[0035] The temperature control for each heat - beating is 50 - 60°C.

[0036] The calendering temperature and pressure of the present invention are lower than the conventional calendering temperature. Conventional high - pressure and high - temperature calendering will cause the fibers to melt and cross - link, which can fill the gaps between the fibers to a certain extent, thereby improving the anti - feather - leakage property of the fabric. However, high - pressure and high - temperature calendering will also cause the fibers to become brittle and unable to achieve the durability of anti - feather - leakage. The present invention performs calendering at a certain temperature and pressure, which can not only well protect the toughness of the fibers, but also press the fibers to a certain flatness. Then, during the water - washing process, through the action of auxiliaries such as softeners and bulking agents, and heat - beating at a certain temperature, the fibers are shaken loose to achieve the purpose of fluffiness. Repeated calendering, water - washing, and heat - beating can make the fibers completely fluffy, use the fluffy fibers to fully fill the gaps in the fabric, achieve the durable anti - feather - leakage effect resistant to water - washing, and at the same time keep the fabric with a soft hand feeling and good air permeability.

[0037] In addition, the film roller used in the calendering of the present invention has better elasticity compared with the ordinary nylon mirror roller, which can better protect the fibers and prevent the fibers from being damaged during the calendering process.

[0038] The present invention also provides a down - proof fabric without a liner for down jackets processed by the above - mentioned processing technology, with the number of feather - leakage ≤ 5 (GB / T 14272 - 2011), air permeability ≥ 15 mm / s (GB / T 5453 - 1997), mass loss of the front side ≤ 2 mg (GB / T 21196.3 - 2007), warp and weft bending lengths ≤ 1.5 cm, and no peculiar smell (GB 18401 - 2010); after the fabric is washed 5 times, the number of feather - leakage ≤ 5 (GB / T 14272 - 2011), air permeability ≥ 25 mm / s (GB / T 5453 - 1997), mass loss of the front side ≤ 2 mg (GB / T 21196.3 - 2007), warp and weft bending lengths ≤ 1.0 cm, and no peculiar smell (GB 18401 - 2010); achieving the effects of no sound, no bone feeling, soft and comfortable hand feeling, breathable without stuffiness, and durable anti - feather - leakage resistant to water - washing.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] (1) The present invention adopts a physical technology of repeated calendering and water washing. Calendering is carried out under certain temperature and pressure, which can not only well protect the toughness of the fibers, but also press the fibers to a certain flatness. Then, during the water washing process, through the action of auxiliaries such as softeners and fluffing agents, and heat beating at a certain temperature, the fibers are shaken loose to achieve the purpose of fluffiness. Repeated calendering, water washing and heat beating can maximize the fluffiness of each thin filament in the fibers, thereby filling the voids in the fabric. This not only protects the flexibility of the fibers, making the fabric feel soft and have high breathability, but also uses the fluffing and swelling of the fibers to fully fill the voids, enabling the fabric to have excellent water-washable, breathable and non-bulked anti-down effects;

[0041] (2) The present invention processes the fabric through procedures of cold stacking, open-width water washing and pretreatment before dyeing in sequence, which can thoroughly remove the sizing agents and impurities on the surface of the fabric fibers, preparing for the subsequent fluffing of the fibers. In addition, adding emulsifiers and super softeners to the cold stacking treatment liquid can also fully lubricate the fibers, endowing the fabric with a soft hand feeling, playing a basic role in fully opening and fluffing the fibers. Combined with the repeated calendering, water washing and beating treatment in post-finishing, each fine fiber in the fabric fibers is fully softened and maximally fluffed, making the anti-down effect sustainable. Compared with coated fabrics, this fabric will not damage the anti-down property even when pinched by external forces, achieving the effect of durable breathable anti-down;

[0042] (3) The non-bulked anti-down fabric for down jackets processed by the present invention has no peculiar smell, feels soft, has good breathability, high wear resistance, good anti-down leakage effect, with the number of down leakage ≤ 5 pieces, air permeability ≥ 15 mm / s, mass loss of the front side ≤ 2 mg, bending length in warp and weft directions ≤ 1.5 cm, and no peculiar smell; after 5 washes, the number of down leakage ≤ 5 pieces, air permeability ≥ 25 mm / s, mass loss of the front side ≤ 2 mg, bending length in warp and weft directions ≤ 1.0 cm, and no peculiar smell. Description of the Drawings

[0043] Figure 1 It is the surface view of the fabric processed in Example 1 of the present invention;

[0044] Figure 2 It is the fiber view of the fabric before processing in Example 1 of the present invention;

[0045] Figure 3 It is the fiber view of the fabric processed in Example 1 of the present invention. Detailed Embodiments

[0046] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings and embodiments. The raw material auxiliaries used in the embodiments are all commercially available unless otherwise specified.

[0047] Example 1

[0048] A down jacket non - wadding anti - down fabric. The base fabric is a 20D, 400T nylon plain fabric woven from 24F nylon fiber. The processing steps are as follows:

[0049] (1) Cold pad - batch: By mass fraction, the cold pad - batch treatment liquid consists of 8 parts of liquid caustic soda (sodium hydroxide solution with a concentration of 32 wt.%), 1 part of emulsifier (OP - 10), 3 parts of hydrogen peroxide, and 3 parts of softener (TF - 4755B). The cold pad - batch speed is 50 km / h, and the cold pad - batch time is 48 h;

[0050] (2) Open - width washing: By mass fraction, the open - width washing treatment liquid consists of 3 parts of desizing agent (TF - 127HF), 3 parts of degreasing agent (TF - 101E), 3 parts of scouring agent (TD - 179), and 300 parts of water. The speed is 80 km / h;

[0051] (3) Pretreatment before dyeing: By mass fraction, the pretreatment liquid before dyeing consists of 5 parts of soda ash, 2 parts of desizing agent (TF - 127HF), 1 part of soaping agent (TF - 231), and 300 parts of water. The speed is 60 km / h, and it is treated at 100 °C for 3 passes;

[0052] (4) Dyeing: The jig dyeing process is adopted, with a temperature of 50 °C for 2 passes, 60 °C for 1 pass, 70 °C for 1 pass, 85 °C for 1 pass, 95 °C for 1 pass, and 105 °C for 6 passes. After dyeing, fixation treatment is carried out at 80 °C for 4 passes;

[0053] (5) Post - finishing: It is carried out according to the following steps: first calendering, washing and heat - beating, second calendering, washing and heat - beating, third calendering, fourth calendering, washing and heat - beating, fifth calendering, washing and heat - beating;

[0054] The operating conditions for each calendering are: using a film roller, with a temperature of 140 °C, a speed of 30 km / h, and a pressure of 0.5 MPa;

[0055] The operating conditions for each washing are: By mass fraction, the washing liquid consists of 50 parts of water, 6 parts of softener (TF - 4755B), 3 parts of bulking agent (H8902), and 3 parts of penetrant (OE - 35). The bath ratio of the water tank is 10:1, the water temperature is 60 °C, and the speed is 30 km / h;

[0056] The temperature control for each heat - beating is 60 °C.

[0057] The surface of the down jacket non - wadding anti - down fabric processed in this example is as Figure 1 shown, and the fabric fibers before and after processing are as Figures 2 - 3 shown. It can be seen from Figures 2 - 3 that after processing, the fibers are fully fluffed and swollen, and have good bending properties without external force damage; from Figure 1It can be seen that the processed fibers are fluffy and swollen, fully filling the gaps in the fabric, making it have excellent anti-feather leakage property.

[0058] Example 2

[0059] A down jacket without a liner anti-feather fabric, the base fabric is a 20D, 400T nylon plain fabric woven from 24F nylon fibers, and the processing procedures are as follows:

[0060] (1) Cold pad-batch: By mass fraction, the cold pad-batch treatment liquid consists of 5 parts of liquid caustic soda (sodium hydroxide solution with a concentration of 30 wt.%), 2 parts of emulsifier (OP-10), 4 parts of hydrogen peroxide, and 2 parts of softener (TF-4755B). The cold pad-batch speed is 40 km / h, and the cold pad-batch time is 72 h;

[0061] (2) Open-width washing: By mass fraction, the open-width washing treatment liquid consists of 2 parts of desizing agent (TF-127HF), 1 part of degreasing agent (TF-101E), 2 parts of scouring agent (TD-179), and 300 parts of water. The speed is 40 km / h;

[0062] (3) Pretreatment before dyeing: By mass fraction, the pretreatment liquid before dyeing consists of 3 parts of soda ash, 1 part of desizing agent (TF-127HF), 2 parts of soap detergent (TF-231), and 300 parts of water. The speed is 40 km / h, and it is treated for 3 passes at a temperature of 100 °C;

[0063] (4) Dyeing: Adopt the jig dyeing process, 2 passes at 50 °C, 1 pass at 60 °C, 1 pass at 70 °C, 1 pass at 85 °C, 1 pass at 95 °C, 6 passes at 105 °C. After dyeing, carry out fixation treatment, 4 passes at 80 °C;

[0064] (5) Post-finishing: Carry out according to the following steps: first calendering, washing and heat-beating, second calendering, washing and heat-beating, third calendering, washing and heat-beating, fourth calendering, washing and heat-beating;

[0065] The operating conditions for each calendering are: using a film roller, temperature 120 °C, speed 20 km / h, pressure 0.8 MPa;

[0066] The operating conditions for each washing are: By mass fraction, the washing liquid consists of 50 parts of water, 8 parts of softener (TF-4755B), 4 parts of bulking agent (H8902), and 4 parts of penetrant (OE-35). The bath ratio of the water tank is 11:1, the water temperature is 70 °C, and the speed is 40 km / h;

[0067] The temperature control for each heat-beating is 55 °C.

[0068] Example 3

[0069] A non-lined down-proof fabric for down jackets. The base fabric is a 20D, 400T nylon plain fabric woven from 24F nylon fibers. The processing steps are as follows:

[0070] (1) Cold pad-batch: By mass, the cold pad-batch treatment liquid consists of 10 parts of liquid caustic soda (sodium hydroxide solution with a concentration of 32 wt.%), 2 parts of emulsifier (OP-10), 2 parts of hydrogen peroxide, and 4 parts of softener (TF-4755B). The cold pad-batch speed is 80 km / h, and the cold pad-batch time is 36 h;

[0071] (2) Open-width washing: By mass, the open-width washing treatment liquid consists of 4 parts of desizing agent (TF-127HF), 4 parts of deoiling agent (TF-101E), 4 parts of scouring agent (TD-179), and 300 parts of water. The speed is 100 km / h;

[0072] (3) Pretreatment before dyeing: By mass, the pretreatment liquid before dyeing consists of 6 parts of soda ash, 1 part of desizing agent (TF-127HF), 1 part of soaping agent (TF-231), and 300 parts of water. The speed is 80 km / h, and it is treated 3 times at a temperature of 100 °C;

[0073] (4) Dyeing: The jig dyeing process is adopted, with 2 passes at 50 °C, 1 pass at 60 °C, 1 pass at 70 °C, 1 pass at 85 °C, 1 pass at 95 °C, and 6 passes at 105 °C. After dyeing, fixation treatment is carried out, 4 passes at 80 °C;

[0074] (5) Post-finishing: It is carried out according to the following steps: the first calendering, washing and heat-beating, the second calendering, the third calendering, washing and heat-beating, the fourth calendering, the fifth calendering, washing and heat-beating, the sixth calendering, washing and heat-beating;

[0075] The operating conditions for each calendering are: using a film roller, temperature 130 °C, speed 25 km / h, pressure 0.6 MPa;

[0076] The operating conditions for each washing are: By mass, the washing liquid consists of 50 parts of water, 5 parts of softener (TF-4755B), 2 parts of bulking agent (H8902), and 2 parts of penetrant (OE-35). The bath ratio of the water tank is 12:1, the water temperature is 80 °C, and the speed is 20 km / h;

[0077] The temperature control for each heat-beating is 50 °C.

[0078] Comparative Example 1

[0079] The difference between this comparative example and Example 1 is only that in the post-finishing, only 2 times of calendering, washing and heat-beating are carried out, that is, it is carried out according to the following steps: the first calendering, washing and heat-beating, the second calendering, washing and heat-beating, and the process conditions of calendering, washing and heat-beating remain unchanged.

[0080] Comparative Example 2

[0081] The difference between this comparative example and Example 1 is only that in the post-treatment, conventional high-pressure and high-temperature calendering treatment is adopted, that is, it is carried out according to the following steps: using a nylon mirror roller, with a temperature of 160 °C, a vehicle speed of 20 km / h, and a pressure of 12 MPa; after calendering, water washing and heat-beating are not carried out.

[0082] Comparative Example 3

[0083] The difference between this comparative example and Example 1 is only that during cold pad-batch dyeing, emulsifier and softener are not used, that is, the cold pad-batch dyeing treatment liquid consists of 8 parts of liquid caustic soda (sodium hydroxide solution with a concentration of 32 wt.%) and 3 parts of hydrogen peroxide.

[0084] The performance indexes of the anti-down fabrics prepared in each example and comparative example were tested, among which:

[0085] The anti-down property was tested with reference to the standard GB / T 14272-2011. The specification of the fabric test sample bag was 110 mm × 210 mm, and the detection index was the number of down feathers drilled (pieces);

[0086] The softness was tested with reference to the standard GB / T 18318.1-2009, and the detection indexes were the bending lengths (cm) in the warp and weft directions;

[0087] The air permeability was tested with reference to the standard GB / T 5453-1997, and the detection index was the air permeability rate (mm / s);

[0088] The abrasion resistance was tested with reference to the standard GB / T 21196.3-2007, and the detection index was the mass wear amount (mg) under a pressure of 9 kPa and 5000 times of friction;

[0089] The peculiar smell was tested with reference to the standard GB 18401-2010.

[0090] The test results are shown in Table 1.

[0091] Table 1

[0092]

[0093] To verify the washing stability of the anti-down fabric, after 10 times of washing according to the washing procedure provided by the standard GBT 8629-2017, the performance indexes of the anti-down fabrics prepared in each example and comparative example were tested again. The test results are shown in Table 2.

[0094] Table 2

[0095]

[0096] As can be seen from Table 1-2, the down jacket processed by the present invention uses a non-lined anti-down fabric, which has no peculiar smell, soft hand feeling, good air permeability, high abrasion resistance, good anti-down leakage effect, and still maintains good anti-down leakage property and air permeability after 10 washes.

[0097] In Comparative Example 1, only 2 calendering, water washing and heat beating were carried out in the post-treatment. The fluffiness of the fabric fibers was limited, and the gaps in the fabric could not be fully filled. Its softness and anti-down leakage property still need to be further improved.

[0098] Comparative Example 2 uses a conventional high-pressure and high-temperature calendering process, which can melt and crosslink the fibers to form a dense surface layer, making the fabric have relatively high anti-down leakage property. However, the air permeability of this fabric is very poor, and the fiber crosslinking causes the fibers to be unable to separate, so the fiber bending length cannot be tested. Moreover, its hand feeling is hard and the softness is not good. In addition, the dense surface layer of this fabric will be damaged after multiple washes, and the anti-down leakage property will be greatly reduced.

[0099] In Comparative Example 3, no emulsifier and softener were used during cold stacking, and the fibers were not fully pre-softened, which had a certain impact on the subsequent calendering and water washing and beating effects, resulting in a decrease in the fluffiness of the fabric fibers, thereby reducing the anti-down leakage property and softness of the fabric.

Claims

1. A processing technology for a non - liner down - proof fabric of a down jacket, characterized in that: The fabric is processed successively through the following processes: cold pad-batch → open-width washing → pretreatment before dyeing → dyeing → after-finishing; The operating conditions of the cold pad-batch are as follows: by mass parts, the cold pad-batch treatment liquid consists of 5-10 parts of liquid caustic soda, 1-2 parts of emulsifier, 2-4 parts of hydrogen peroxide, and 2-4 parts of softener; the cold pad-batch speed is 40-80 km / h, and the cold pad-batch time is 36-72 h; In the after-finishing, calendering treatment is carried out no less than 4 times, and water washing and heat-beating treatment are carried out after every one or two calendering treatments; The operating conditions for each calendering are as follows: using a film roller, the temperature is 120-140 °C, the speed is 20-30 km / h, and the pressure is 0.5-0.8 MPa; The operating conditions for each water washing are as follows: by mass parts, the water washing liquid consists of 50 parts of water, 5-8 parts of softener, 2-4 parts of bulking agent, and 2-4 parts of penetrant; the bath ratio of the water tank is (10-12):1, the water temperature is 40-80 °C, and the speed is 20-40 km / h.

2. The processing technology of the non-lined down-proof fabric for down jackets according to claim 1, characterized in that: The fabric is woven from 7D-150D nylon fiber, polyester fiber, nylon-polyester interwoven fiber or polyester-nylon interwoven fiber, and the fabric texture is plain weave, twill weave, satin weave, jacquard or check.

3. The processing technology of the non-lined down-proof fabric for down jackets according to claim 2, characterized in that: The fiber F number of the fabric is above 12F.

4. The processing technology of the non-lined down-proof fabric for down jackets according to claim 1, characterized in that: In the cold pad-batch treatment liquid, the liquid caustic soda is a sodium hydroxide solution with a concentration of 30-32 wt.%.

5. The processing technology of the non-lined down-proof fabric for down jackets according to claim 1, characterized in that: The operating conditions of the open-width washing are as follows: by mass parts, the open-width washing treatment liquid consists of 2-4 parts of desizing agent, 2-4 parts of deoiling agent, 2-4 parts of scouring agent, and 300 parts of water; the speed is 40-100 km / h.

6. The processing technology of the down jacket's non-lined anti-down fabric according to claim 1, characterized in that: The operating conditions of the pretreatment before dyeing are as follows: by mass parts, the pretreatment before dyeing liquid consists of 3-6 parts of soda ash, 1-2 parts of desizing agent, 1-2 parts of soaping agent, and 300 parts of water; the speed is 40-80 km / h, and it is treated for 3 passes at a temperature of 100 °C; The desizing agent is TF-127HF of Zhejiang Transfar Group Co., Ltd.; the soaping agent is TF-231 of Zhejiang Transfar Group Co., Ltd.

7. The processing technology of the non-lined down-proof fabric for down jackets according to claim 1, characterized in that: The dyeing adopts the jig dyeing process, and fixation treatment is carried out after dyeing.

8. The processing technology of the non-lined down-proof fabric for down jackets according to claim 1, characterized in that: In the after-finishing, calendering treatment is carried out 4-6 times, and the number of water washing and heat-beating is no less than 3 times.

9. The processing technology of the non-lined down-proof fabric for down jackets according to claim 1, characterized in that: The temperature control for each heat-beating is 50-60 °C.

10. A down jacket non-baffle anti-feather fabric processed by the processing technology according to any one of claims 1-9, characterized in that: The number of down leakage is ≤5 pieces, the air permeability is ≥15 mm / s, the mass loss of the front side is ≤2 mg, the bending lengths in the warp and weft directions are ≤1.5 cm, and there is no peculiar smell; after the fabric is washed 5 times, the number of down leakage is ≤5 pieces, the air permeability is ≥25 mm / s, the mass loss of the front side is ≤2 mg, the bending lengths in the warp and weft directions are ≤1.0 cm, and there is no peculiar smell.

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