Down jacket fabric with four-layer structure

Abstract

The utility model discloses a down jacket fabric with a four-layer structure, which comprises an outer-layer composite fabric, an inner-layer composite fabric and a down filling channel, the outer-layer composite fabric and the inner-layer composite fabric are locally and seamlessly combined through hot pressing, a hot pressing pattern is an inverted L-shaped pattern distributed in an array mode and comprises cross grains and twill grains, and the end parts of the cross grains and the twill grains are connected together. The included angle between the cross grain and the twill is larger than 90 degrees, the multiple hot-pressing patterns arranged in an array mode are arranged at intervals in the direction of the cross grain and the direction of the twill, and the non-press-fit space between the hot-pressing patterns is a down filling channel; the outer-layer composite fabric comprises a waterproof membrane sensing layer and a base cloth layer, the outer side face of the base cloth layer is connected with the waterproof membrane sensing layer in a hot pressing mode, the inner-layer composite fabric comprises a waterproof moisture-permeable membrane layer and a lining layer, and the inner side of the waterproof moisture-permeable membrane layer is connected with the lining layer in a dot-matrix pressing mode. The down filling channel is arranged between the inner side surface of the base cloth layer and the outer side surface of the waterproof moisture-permeable film layer; the fabric has wear resistance and repeated washing resistance, can prevent down leakage after down filling, and is high in cost performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile fabrics, and in particular relates to a down jacket fabric with a four-layer structure. Background Art

[0002] Currently, there are three main types of down jacket fabrics on the market. The first type is products produced using roller-pressing technology. The glossiness of fabrics processed using roller-pressing technology is difficult to control, the hand feel is monotonous, and after three washes, the glossiness, hand feel, and down-proofing properties are significantly reduced. The second type is ultra-fine, high-density channel fabrics. The production of these fabrics requires very high machine requirements, resulting in low production capacity and high prices, making them unsuitable for mass consumption. The third type is products produced using release paper transfer coating technology. These fabrics require down packing when sewing down jackets, otherwise the lining will experience down lining. Given that existing fabrics cannot balance economy, fabric quality, and down-proofing, it is necessary to improve the structure of existing fabrics and design a cost-effective down jacket fabric that meets the needs of the general public. Utility Model Content

[0003] In response to the above problems and technical requirements, the utility model provides a four-layer down jacket fabric. The improved fabric is wear-resistant and resistant to multiple washings, can maintain the original texture of the fabric, prevent the down from running after filling, and has a high cost-effectiveness.

[0004] The technical solution of the utility model is as follows: a four-layer down jacket fabric, including an outer composite fabric, an inner composite fabric and a filling channel, the outer composite fabric and the inner composite fabric are locally seamlessly connected by hot pressing, the hot pressing pattern is an inverted L-shaped figure distributed in an array, including transverse stripes and twill stripes connected together at the ends, the angle between the transverse stripes and the twill stripes is greater than 90°, and the multiple hot pressing patterns arranged in the array are spaced apart along the transverse direction and the twill direction respectively, the unpressed space between the hot pressing patterns is the filling channel, and the filling channel can be directly filled with down material; the outer composite fabric includes a waterproof membrane layer and a base fabric layer, the outer side surface of the base fabric layer is connected to the waterproof membrane layer by hot pressing, the inner composite fabric includes a waterproof and breathable membrane layer and an inner lining layer, the inner side of the waterproof and breathable membrane layer is dot matrix pressed to the inner lining layer, and the filling channel is arranged between the inner side surface of the base fabric layer and the outer side surface of the waterproof and breathable membrane layer.

[0005] Furthermore, the waterproof film-sensitive layer is a release paper transfer coating, and the coating agent of the release paper transfer coating includes a mixture of ink and oily glue, and the ratio between the ink and the oily glue mixture is 25-30:100.

[0006] Furthermore, the base fabric layer is made of polyester pongee fabric with a thickness of 240T or more, the outer side of the base fabric layer that is in contact with the waterproof membrane layer is a fleece surface, and the inner side of the base fabric layer that is opposite to the filling channel is a smooth surface.

[0007] Furthermore, the waterproof and breathable membrane layer is a TPU low-permeability membrane layer, the thickness of the TPU low-permeability membrane layer is 6-10 μm, and the gram weight of the TPU low-permeability membrane layer is 8-12 g / ㎡.

[0008] Furthermore, the inner lining layer is a 15D polyester fabric layer.

[0009] Furthermore, the waterproof and breathable membrane layer and the inner lining layer are connected by dot lamination using an engraving wheel. The coverage of the dot lamination area relative to the total area is 34%, the diameter of each lamination point is 500 μm, and the lamination depth is 60 μm.

[0010] Furthermore, the pressing depth of the hot pressing pattern between the outer layer composite fabric and the inner layer composite fabric is 150 μm.

[0011] Beneficial effects of the utility model:

[0012] 1) This fabric adopts a four-layer composite structure, including two layers of outer composite fabric and two layers of inner composite fabric. The filling channel is located between the two layers. The filling channels are seamlessly separated by heat pressing, so the filling channels have a good sealing effect. Both the inside and outside of the filling channels have sufficient strength and density to prevent the down from drilling out. The inverted L-shaped heat pressing pattern separates the filling channels into diamond shapes, so that the down material is stabilized in each filling channel. The down material will not flow between the filling channels, and there will be no down running without the need for additional down bags.

[0013] 2) The outer composite fabric is made by laminating a release paper transfer coating and polyester pongee fabric. The PU coating is transferred to the polyester pongee fabric using release paper, producing a PU fabric with specific functions. This fabric is waterproof and breathable, and can resist environmental erosion. At the same time, the delicate film-like texture gives the fabric softness and comfort. As the outer fabric of a down jacket, it is environmentally friendly and cost-effective. In addition, the inner side of the polyester pongee fabric, which serves as the base fabric layer, is calendered. The outer side of the fleece base fabric layer and the release paper transfer coating have a better bond. The inner side of the smooth base fabric layer is convenient for filling operations and is not easily stained by dust during processing.

[0014] 3) The inner composite fabric is made of a TPU low-permeability film layer and a polyester fabric layer, which are dot-matrix laminated. The 15D polyester fabric layer serves as the inner lining, which is smooth, wrinkle-resistant, and washable. It dries easily without deforming after washing. The TPU low-permeability film layer is resistant to low temperatures, abrasion, and tearing, as well as waterproof and breathable, greatly improving the overall material strength and breathability of the fabric.

[0015] 4) The down jacket fabric produced using the above four-layer structure has very high physical properties, is resistant to severe cold and tearing, and is suitable for use in winter environments; both the inner and outer layers are waterproof and breathable, which can improve wearing comfort, prevent stuffiness, and have good perspiration and moisture removal effects; the PU release paper transfer coating on the surface feels delicate and soft, and repeated washing has little effect on the feel and gloss; the inverted L-shaped hot pressing pattern can ensure that the down does not fall off after washing, and there is no need to set up a separate down bag. The down jacket fabric produced using this solution has low cost, excellent performance, strong economic benefits, and can meet the needs of large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The outer layer composite fabric and the inner layer composite fabric are arranged in the present invention;

[0017] Figure 2 Schematic diagram of thermal compression connection between the outer composite fabric and the inner composite fabric;

[0018] Figure 3 This is a state diagram of the filling channel being filled with down material;

[0019] Figure 4 This is a diagram of the setup for heat pressing patterns between four layers of fabric;

[0020] Marked in the figure are: outer composite fabric 1, waterproof membrane layer 11, base fabric layer 12, filling channel 2, fleece material 21, inner composite fabric 3, waterproof and breathable membrane layer 31, lining layer 32, pressing point 33, hot pressing pattern 4, horizontal stripes 41, and twill 42. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] like Figure 1-4 The four-layer down jacket fabric of the present invention is shown, comprising an outer composite fabric 1, an inner composite fabric 3, and a filling channel 2. The outer and inner composite fabrics 1 and 3 are locally seamlessly joined by hot pressing. The hot pressing pattern 4 is an array of inverted L-shaped patterns, comprising horizontal stripes 41 and diagonal stripes 42 connected at their ends. The angle between the horizontal stripes 41 and diagonal stripes 42 is greater than 90°. The array of multiple hot pressing patterns 4 is spaced apart along the horizontal and diagonal stripes, and the pressing depth of the hot pressing patterns 4 is 150μm. The unpressed spaces between the hot pressing patterns 4 serve as filling channels, which can be directly filled with down material.

[0023] The outer composite fabric 1 includes a waterproof membrane layer 11 and a base fabric layer 12. The outer surface of the base fabric layer 12 is thermally bonded to the waterproof membrane layer 11. The waterproof membrane layer 11 is a release paper transfer coating, and the coating agent of the release paper transfer coating includes a mixture of ink and oil-based glue, with the ratio of the ink to oil-based glue mixture being 25-30:100. The base fabric layer 12 is a polyester pongee fabric with a thickness of 240T or higher. The outer surface of the base fabric layer 12 that contacts the waterproof membrane layer 11 is a fleece surface, and the inner surface of the base fabric layer 12 that faces the filling channel 2 is a smooth surface. The outer composite fabric 1 is formed by laminating a release paper transfer coating and a polyester pongee fabric. The PU coating is transferred to the polyester pongee fabric using release paper, and a PU fabric with specific functions can be produced. The fabric is waterproof and breathable and can resist environmental erosion. At the same time, the delicate membrane texture gives the fabric softness and comfort. As the outer fabric of a down jacket, it is environmentally friendly and cost-effective. The inner side of the polyester pongee fabric serving as the base fabric layer is calendered, and the outer side of the fleece base fabric layer and the release paper transfer coating have a better bonding effect. The inner side of the smooth base fabric layer is convenient for filling operations and is not easily contaminated with dust during processing.

[0024] The inner composite fabric 3 comprises a waterproof and breathable membrane layer 31 and an inner lining layer 32. The inner side of the waterproof and breathable membrane layer 31 and the inner lining layer 32 are connected by a dot matrix press fit. The filling channel 2 is located between the inner side of the base fabric layer 12 and the outer side of the waterproof and breathable membrane layer 31. The waterproof and breathable membrane layer 31 is a TPU low-permeability membrane layer with a thickness of 6-10μm and a grammage of 8-12g / ㎡. The inner lining layer 32 is a 15D polyester fabric layer. The waterproof and breathable membrane layer 31 and the inner lining layer 32 are connected by a dot matrix press fit using an engraving wheel. The dot matrix press fit covers 34% of the total area. Each press fit point has a diameter of 500μm and a press fit depth of 60μm. The inner composite fabric 3 is made of a TPU low-permeability film layer and a polyester fabric layer laminated in a dot matrix. The 15D polyester fabric layer serves as the inner lining layer 32 and is smooth, wrinkle-resistant, and washable. It dries easily after washing and retains its shape. The TPU low-permeability film layer is low-temperature resistant, abrasion-resistant, tear-resistant, and waterproof and breathable, greatly improving the overall strength and breathability of the fabric.

[0025] This fabric adopts a four-layer fabric composite structure, including two layers of outer composite fabrics 1 and two layers of inner composite fabrics 3, with the filling channel 2 between the two layers. The filling channels 2 are seamlessly separated by hot pressing, so the filling channels 2 have a good sealing effect. The inner and outer sides of the filling channels 2 have sufficient strength and density to prevent the down from drilling out. The inverted L-shaped hot pressing pattern separates the filling channels 2 in a diamond shape, so that the down material is stabilized in each filling channel 2. The down material will not flow between the filling channels 2, and the down running phenomenon will not occur without the additional down bag.

[0026] An example of the production steps of the four-layer down jacket fabric of the utility model:

[0027] 1) Selection and processing of four-layer substrates:

[0028] The first waterproof film layer: Cover the release paper with a coating, and then transfer it to the second polyester fabric layer to obtain a two-layer laminated semi-finished product. The release paper transfer coating is a mixture of ink and oil-based glue, and the ratio of the ink to oil-based glue mixture is 25-30:100;

[0029] The second base fabric layer is made of 100% polyester, 50Denier*50Denier, density 300T, weight 70g / m 2 ;

[0030] The third waterproof and breathable membrane layer: 100% TPU material, 6U thickness, weight 8g / m 2 , low-transmittance transparent film;

[0031] The fourth lining material: 100% polyester, weight 30g / m 2 ,15D grey polyester yarn;

[0032] 2) Finished product processing flow:

[0033] Step 1: Heat the hot melt adhesive to 95-100°C for the third and fourth layers. Using a 34% coverage, 500µm diameter, and 60µm depth engraving wheel, transfer the hot melt adhesive to the third film layer. Lamination rollers then apply pressure to bond the third and fourth layers, creating laminated material B (the inner composite fabric). After steaming and rolling, place the roll in a curing chamber for 48 hours at 35°C and 55% relative humidity.

[0034] Step 2: Calender the back of the second fabric layer heavily using a nylon roller calender at a temperature of 150-155°C, a pressure of 8 MPA, and a calendering speed of 25 m / min. Then, hot-press the front of the second fabric layer to the release paper formed into a film using release paper transfer technology to obtain laminated material A (outer composite fabric).

[0035] Step 3: Finally, laminate material A (outer composite fabric) and material B (inner composite fabric) at a depth of 150um and heat press the pattern as shown below. Figure 4 The engraving wheel shown is attached by hot pressing at a temperature of 160-165°C.

[0036] Step 4: Fill the filling channel formed by hot pressing with down.

[0037] The above descriptions are merely some preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes and substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A four-layer down jacket fabric, characterized by: The utility model comprises an outer composite fabric, an inner composite fabric and a filling channel. The outer composite fabric and the inner composite fabric are locally seamlessly bonded by hot pressing. The hot pressing pattern is an inverted L-shaped figure distributed in an array, including transverse stripes and twill stripes connected together at the ends. The angle between the transverse stripes and the twill stripes is greater than 90°. The multiple hot pressing patterns arranged in the array are arranged at intervals along the transverse direction and the twill direction respectively. The unpressed space between the hot pressing patterns is the filling channel, and the filling channel can be directly filled with the down material; the outer composite fabric comprises a waterproof membrane layer and a base fabric layer, and the outer side surface of the base fabric layer is connected to the waterproof membrane layer by hot pressing. The inner composite fabric comprises a waterproof and breathable membrane layer and an inner lining layer. The inner side of the waterproof and breathable membrane layer and the inner lining layer are dot-matrix pressed together, and the filling channel is arranged between the inner side surface of the base fabric layer and the outer side surface of the waterproof and breathable membrane layer.

2. The four-layer down jacket fabric according to claim 1, characterized in that: The base fabric layer is made of polyester pongee fabric with a density of 240T or higher, the outer side of the base fabric layer that is in contact with the waterproof membrane layer is a fleece surface, and the inner side of the base fabric layer that is opposite to the filling channel is a smooth surface.

3. The four-layer down jacket fabric according to claim 2, characterized in that: The waterproof and breathable membrane layer is a TPU low-permeability membrane layer, the thickness of the TPU low-permeability membrane layer is 6-10 μm, and the gram weight of the TPU low-permeability membrane layer is 8-12 g / ㎡.

4. The four-layer down jacket fabric according to claim 3, characterized in that: The inner lining layer is a 15D polyester fabric layer.

5. The four-layer down jacket fabric according to claim 4, characterized in that: The waterproof and breathable membrane layer and the inner lining layer are connected by dot matrix pressing using an engraving wheel. The coverage of the dot matrix pressing area relative to the total area is 34%. The diameter of each pressing point is 500 μm and the pressing depth is 60 μm.

6. The four-layer down jacket fabric according to claim 5, characterized in that: The pressing depth of the hot pressing pattern between the outer layer composite fabric and the inner layer composite fabric is 150 μm.

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