Anti-picking down feather and down jacket fabric and preparation method thereof

Abstract

The application provides a down-proof down jacket fabric and a preparation method thereof, and the preparation method comprises the following steps: S100, material preparation, selecting at least two layers of textile fabrics with thermoplasticity as a composite base material layer constituting a down jacket fabric structure; S200, layering and filling, aligning and laying the textile fabrics according to the design of the down jacket fabric structure, and laying a warm filling between the adjacent two layers of textile fabrics; S300, ultrasonic welding forming, moving the laid textile fabrics to an ultrasonic welding device, aligning an ultrasonic welding head of the ultrasonic welding device with a quilting track area of the down jacket fabric structure, and applying mechanical vibration and pressure, so that the textile fabrics of the down jacket fabric structure penetrate and fuse under the action of ultrasonic waves; and S400, melting and solidification, removing the ultrasonic welding head, allowing the molten material to cool and solidify, and forming a dense welded sealing layer. The method can have the advantages of efficient down-proof, long-lasting bonding strength and good comfort.

Description

Technical Field

[0001] This invention belongs to the field of clothing manufacturing technology, and specifically relates to a down-proof down jacket fabric and its preparation method. Background Technology

[0002] Down jackets have become a staple of winter clothing due to their excellent warmth retention. However, preventing the down and feathers inside from leaking out through the quilting gaps (i.e., "down leakage" or "down run") has always been a key technical challenge affecting product quality and user experience, and a quality issue that has long needed to be addressed in this field.

[0003] Currently, the mainstream down-proof technologies mainly include two types: one is the traditional sewing needle hole sealing technology, but the needle hole itself is a channel for down to escape, so the down-proof effect is limited; the other is to use hot melt adhesive strips for bonding and sealing, which can reduce needle holes, but there are problems such as insufficient bonding between the adhesive strip and the fabric, poor washability, easy aging, cracking and falling off, which affect the durability and comfort of the product. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a method for preparing a down-proof down jacket fabric that can combine high down-proof performance, durable bonding strength, and good comfort.

[0005] Another object of the present invention is to provide a down-proof down jacket fabric.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method for preparing a down-proof down jacket fabric includes the following steps:

[0008] S100: Material preparation, select at least two layers of thermoplastic textile fabric as the composite base layer that constitutes the structure of the down jacket fabric.

[0009] S200: Laying and filling: According to the down jacket fabric structure design, the textile fabric is laid in alignment, and thermal insulation filling is laid between two adjacent layers of textile fabric.

[0010] S300: Ultrasonic welding forming, the laid-out textile fabric is moved to the ultrasonic welding equipment, so that the ultrasonic welding head of the ultrasonic welding equipment is aligned with the quilting track area of ​​the down jacket fabric structure, and mechanical vibration and pressure are applied, so that the thermoplastic fibers of the textile fabric of the down jacket fabric structure soften and melt locally under the action of ultrasonic waves, and penetrate and fuse with each other under pressure.

[0011] S400: Melting and solidification, the ultrasonic welding head is removed, allowing the molten material to cool and solidify, forming a continuous, dense, pinhole-free weld sealing layer.

[0012] Optionally, the textile fabric includes an outer fabric and an inner fabric.

[0013] Optionally, the textile fabric includes an outer fabric, a first lining fabric, and an inner fabric, wherein the first lining fabric is disposed between the outer fabric and the inner fabric.

[0014] Optionally, the textile fabric includes an outer fabric, a first lining fabric, a second lining fabric, and an inner fabric, wherein the outer fabric, the first lining fabric, the second lining fabric, and the inner fabric are stacked sequentially from the outside to the inside.

[0015] Optionally, the textile fabric is selected from one or more thermoplastic synthetic fiber materials selected from nylon, polyester, polyurethane, polypropylene and polyethylene.

[0016] Optionally, in step S300, the power range of the ultrasonic welding equipment is 250W-350W.

[0017] Optionally, in step S300, the welding pressure range of the ultrasonic welding equipment is 400N-500N.

[0018] Optionally, in step S300, the welding time range of the ultrasonic welding equipment is 0.3s-1s.

[0019] Optionally, in step S300, the width of the welding wheel of the ultrasonic welding equipment is in the range of 0.3cm-0.8cm.

[0020] A down-proof down jacket fabric is prepared using the down-proof down jacket fabric preparation method described in any one of the above-mentioned methods.

[0021] As can be seen from the above technical solutions, compared with the prior art, the method for preparing down-proof down jacket fabric disclosed in the embodiments of the present invention has the following technical effects:

[0022] 1) The method for preparing down-proof down jacket fabric disclosed in this invention completely abandons the sewing process, fundamentally eliminating the needle hole as the core path of down leakage, and forming a seamless sealing layer through ultrasonic melting, thereby achieving a qualitative improvement in down-proof performance;

[0023] 2) Ultrasonic welding fuses multiple layers of fabric into a whole at the molecular level, with no loose stitches at the seams. Its tensile strength and tear resistance are significantly better than traditional sewing or gluing processes, and it is especially suitable for the strong bonding of thermoplastic fabrics such as nylon.

[0024] 3) The entire process is a dry physical processing method, requiring no chemical adhesives, completely avoiding problems such as formaldehyde release, volatile organic compound (VOC) pollution, and adhesive strip hardening. The resulting product is more environmentally friendly and healthier, while the welded parts are smooth and soft, avoiding discomfort from friction with the body, allowing for greater freedom of movement, and significantly improving wearing comfort, in line with the current trend of high-end and green consumer products. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a structure prepared using an outer layer fabric and an inner layer fabric as disclosed in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure prepared using an outer fabric, an inner fabric, and a first lining fabric as disclosed in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure prepared by using an outer fabric, an inner fabric, a first lining fabric, and a second lining fabric as disclosed in the embodiments of the present invention.

[0029] Figure 4 This is a front structural diagram of the down-proof down jacket disclosed in the embodiments of the present invention;

[0030] Figure 5 This is a schematic diagram of the back structure of the down-proof down jacket disclosed in the embodiments of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100 - Outer fabric, 200 - First lining fabric, 300 - Second lining fabric, 400 - Inner fabric, 500 - Sewing stitch. Detailed Implementation

[0033] In view of this, the core of the present invention is to provide a method for preparing a down-proof down jacket fabric that can combine high down-proof performance, durable bonding strength, and good comfort.

[0034] Another object of the present invention is to provide a down-proof down jacket fabric.

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. Please refer to [the accompanying drawings]. Figures 1-5 .

[0036] The method for preparing down-proof down jacket fabric disclosed in this invention includes the following steps: S100: Material preparation, selecting at least two layers of thermoplastic textile fabric as the composite substrate layer constituting the down jacket fabric structure; S200: Laying and filling, according to the down jacket fabric structure design, aligning and laying the textile fabric, and laying a thermal insulation filling material between adjacent layers of textile fabric; S300: Ultrasonic welding and forming, moving the laid-out textile fabric to an ultrasonic welding device, aligning the ultrasonic welding head of the ultrasonic welding device with the pre-set quilting trajectory area of ​​the down jacket fabric structure, and applying mechanical vibration and pressure, so that the thermoplastic fibers of the textile fabric structure of the down jacket fabric locally soften and melt under the action of ultrasound, and penetrate and fuse with each other under pressure; S400: Melting and solidification, removing the ultrasonic welding head, allowing the molten material to cool and solidify, forming a continuous, dense, and pinhole-free welded sealing layer.

[0037] Compared with the prior art, the method for preparing down-proof down jacket fabric disclosed in the embodiments of the present invention has the following technical effects:

[0038] 1) The method for preparing down-proof down jacket fabric disclosed in the embodiments of the present invention completely abandons the sewing process, fundamentally eliminating the needle hole as the core path of down leakage, and forming a seamless sealing layer by ultrasonic melting, thereby achieving a qualitative improvement in down-proof performance;

[0039] 2) Ultrasonic welding fuses multiple layers of fabric into a whole at the molecular level, with no loose stitches at the seams. Its tensile strength and tear resistance are significantly better than traditional sewing or gluing processes, and it is especially suitable for the strong bonding of thermoplastic fabrics such as nylon.

[0040] 3) The entire process is a dry physical processing method, requiring no chemical adhesives, completely avoiding problems such as formaldehyde release, volatile organic compound (VOC) pollution, and adhesive strip hardening. The resulting product is more environmentally friendly and healthier, while the welded parts are smooth and soft, avoiding discomfort from friction with the body, allowing for greater freedom of movement, and significantly improving wearing comfort, in line with the current trend of high-end and green consumer products.

[0041] As one specific embodiment, in the method for preparing down-proof down jacket fabric disclosed in this embodiment of the invention, the textile fabric includes an outer fabric 100 and an inner fabric 400.

[0042] As another specific embodiment, in the method for preparing down-proof down jacket fabric disclosed in this embodiment of the invention, the textile fabric includes an outer fabric 100, a first lining fabric 200 and an inner fabric 400, with the first lining fabric 200 disposed between the outer fabric 100 and the inner fabric 400.

[0043] As another specific embodiment, in the method for preparing down-proof down jacket fabric disclosed in this embodiment of the invention, the textile fabric includes an outer fabric 100, a first lining fabric 200, a second lining fabric 300 and an inner fabric 400, wherein the outer fabric 100, the first lining fabric 200, the second lining fabric 300 and the inner fabric 400 are stacked sequentially from the outside to the inside.

[0044] The embodiments of the present invention do not limit the specific materials of the textile fabrics; any materials that meet the requirements of the present invention are within the protection scope of the present invention.

[0045] As a specific embodiment of the present invention, the textile fabric disclosed in the embodiments of the present invention is selected from one or more thermoplastic synthetic fiber materials selected from nylon, polyester, polyurethane, polypropylene and polyethylene.

[0046] As a preferred option, nylon fabrics exhibit higher success rates and bond strength in ultrasonic welding.

[0047] As a further embodiment, in the method for preparing the down-proof down jacket fabric disclosed in this embodiment of the invention, the power range of the ultrasonic welding equipment in step S300 is 250W-350W. For example, the power of the ultrasonic welding equipment can be specifically 250W, 300W, or 350W. If the power of the ultrasonic welding equipment is too low, it will lead to insufficient welding, low weld strength, and easy cracking during subsequent processing, down filling, or wearing and washing, completely losing the down-proof function; if the power of the ultrasonic welding equipment is too high, it will damage the fiber structure of the base fabric itself, causing the fabric at the weld to become brittle, its strength to decrease, and even holes to appear, creating new down-proof points. The power range setting of the ultrasonic welding equipment disclosed in this embodiment of the invention allows the polymer materials on the fabric bonding surface to melt rapidly and diffuse into each other, while ensuring that the base fabric fibers are not damaged, thus achieving a balance between high sealing performance and high durability.

[0048] As a further embodiment, in the method for preparing down-proof down jacket fabric disclosed in this invention, the welding pressure range of the ultrasonic welding equipment in step S300 is 400N-500N. For example, the welding pressure of the ultrasonic welding equipment can specifically be 400N, 450N, or 500N. This range of welding pressure settings allows for sufficient and uniform physical contact between the ultrasonic welding head and the fabric, and between fabric layers.

[0049] As a further embodiment, in the method for preparing down-proof down jacket fabric disclosed in this invention, the welding time range of the ultrasonic welding equipment in step S300 is 0.3s-1s. For example, the welding time of the ultrasonic welding equipment can specifically be 0.3s, 0.4s, 0.5s, 0.8s, or 1s. Setting this welding time range allows the down-proof down jacket fabric to maintain optimal melt viscosity during the preparation process, and a high-strength, high-toughness weld can be formed after cooling.

[0050] As a further embodiment, in the method for preparing down-proof down jacket fabric disclosed in this embodiment of the invention, the width of the welding wheel of the ultrasonic welding equipment in step S300 ranges from 0.3cm to 0.8cm. For example, the width of the welding wheel of the ultrasonic welding equipment can specifically be 0.3cm, 0.4cm, 0.5cm, 0.6cm, or 0.8cm.

[0051] If the welding wheel width is too small, the weld's peel strength and shear strength may be insufficient; if the welding wheel width is too wide, the weld may form a hard, hardened area, severely affecting the comfort of the garment. The welding wheel width range disclosed in this embodiment ensures that the weld has sufficient area to withstand various stresses, thereby guaranteeing the durability and reliability of the sealing effect.

[0052] This invention also discloses a down-proof down jacket fabric, which is prepared using the down-proof down jacket fabric preparation method disclosed in any of the above embodiments.

[0053] Since the down-proof down jacket fabric adopts the preparation method of the down-proof down jacket fabric disclosed in the embodiments of the present invention, the down-proof down jacket fabric also has the technical advantages of the preparation method of the down-proof down jacket fabric disclosed in the embodiments of the present invention, and the embodiments of the present invention will not elaborate on these points.

[0054] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0055] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0056] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for preparing a down-proof down jacket fabric, characterized in that, Includes the following steps: S100: Material preparation, select at least two layers of thermoplastic textile fabric as the composite base layer that constitutes the structure of the down jacket fabric. S200: Laying and filling: According to the down jacket fabric structure design, the textile fabric is laid in alignment, and thermal insulation filling is laid between two adjacent layers of textile fabric. S300: Ultrasonic welding forming, the laid-out textile fabric is moved to the ultrasonic welding equipment, so that the ultrasonic welding head of the ultrasonic welding equipment is aligned with the quilting track area of ​​the down jacket fabric structure, and mechanical vibration and pressure are applied, so that the thermoplastic fibers of the textile fabric of the down jacket fabric structure soften and melt locally under the action of ultrasonic waves, and penetrate and fuse with each other under pressure. S400: Melting and solidification, the ultrasonic welding head is removed, allowing the molten material to cool and solidify, forming a continuous, dense, pinhole-free weld sealing layer.

2. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, The textile fabric includes an outer fabric and an inner fabric.

3. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, The textile fabric includes an outer fabric, a first lining fabric, and an inner fabric, wherein the first lining fabric is disposed between the outer fabric and the inner fabric.

4. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, The textile fabric includes an outer fabric, a first lining fabric, a second lining fabric, and an inner fabric, which are stacked sequentially from the outside to the inside.

5. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, The textile fabric is selected from one or more thermoplastic synthetic fiber materials selected from nylon, polyester, polyurethane, polypropylene and polyethylene.

6. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, In step S300, the power range of the ultrasonic welding equipment is 250W-350W.

7. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, In step S300, the welding pressure range of the ultrasonic welding equipment is 400N-500N.

8. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, In step S300, the welding time range of the ultrasonic welding equipment is 0.3s-1s.

9. The method for preparing the down-proof down jacket fabric according to claim 1, characterized in that, In step S300, the width of the welding wheel of the ultrasonic welding equipment is in the range of 0.3cm-0.8cm.

10. A down-proof down jacket fabric, characterized in that, It is prepared using the method for preparing down-proof down jacket fabric as described in any one of claims 1-9.

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