Down-proof down quilt
By using an I-shaped spacer fabric structure and modified fiber materials, the problem of down leakage in traditional down comforters has been solved, achieving an anti-down leakage effect and improving antibacterial and anti-mite performance and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINING HONGTAI DOWN CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional down comforters suffer from down leakage during use, with down feathers easily escaping through the pinholes, affecting warmth retention and the cleanliness of the environment.
It adopts an I-shaped spaced fabric structure, including an upper layer, a lower layer and a middle layer woven from warp and weft yarns. The middle layer is evenly and vertically arranged between the upper and lower layers to form a rectangular filling space. The filling material is down, and it uses imitation rabbit hair core-spun yarn and specific modified fiber materials.
It effectively avoids the problem of down feathers escaping due to pinholes, while also possessing antistatic, antibacterial, anti-mildew, and anti-mite properties, maintaining the warmth of the down comforter and the cleanliness of the usage environment.
Smart Images
Figure CN224219856U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a down comforter, specifically a down comforter that prevents down leakage. Background Technology
[0002] Down is an animal protein fiber found in the bellies of waterfowl such as geese and ducks, resembling a fluffy catkin. The down fluff fibers are densely covered with millions of tiny triangular pores, which expand and contract with temperature changes, creating a temperature-regulating function. It absorbs heat emitted by the body and insulates against cold air. Down also has excellent moisture absorption and dissipation properties, and is warm, elastic, and highly fluffy. Therefore, down comforters made with down as filling are lightweight yet provide excellent warmth.
[0003] Traditional down comforters commonly suffer from down leakage during use. The main reason is the seams between the top and bottom layers, which leave needle holes through which down feathers can easily escape. This not only causes the down inside the comforter to gradually decrease, affecting its warmth, but also allows down to escape outside the comforter, making the environment clean. Therefore, it is necessary to provide a down comforter that prevents down leakage. Utility Model Content
[0004] The purpose of this invention is to provide a down-proof comforter that is designed to have better down-proof performance than traditional down comforters.
[0005] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: a down-proof comforter, comprising: a comforter cover and a comforter core, wherein the comforter core is disposed inside the comforter cover; the comforter core comprises an I-shaped spacer fabric and a filling material; the I-shaped spacer fabric comprises an upper layer, a lower layer and a middle layer woven from warp and weft yarns, wherein the middle layer is evenly and vertically arranged between the upper and lower layers, and adjacent two middle layers form a rectangular filling space with the upper and lower layers; the filling material is filled within the rectangular filling space; the filling material is down.
[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the duvet cover is made of imitation rabbit hair core-spun yarn.
[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the basic structure of both the upper and lower layers is plain weave; the warp yarn repeat number of the basic structure of the upper and lower layers is 4, and the weft yarn repeat number is 8; the upper layer is a single-start plain weave, and the lower layer is a double-start plain weave.
[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the structure of the intermediate layer is a warp-double weave; the intermediate layer structure formed by the intermediate layer warp yarns and the upper layer warp yarns is an upper warp double weave, and the intermediate layer structure formed by the intermediate layer warp yarns and the lower layer warp yarns is a lower warp double weave; the structure formed by the connection between the intermediate layer and the upper layer is an upper connection weave, and the structure formed by the connection between the intermediate layer and the lower layer is a lower connection weave.
[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the warp yarn of the I-shaped spacer fabric is graphene-modified PET fiber filament, and the weft yarn of the I-shaped spacer fabric is copper-modified antibacterial and anti-mite polyamide 6 fiber filament.
[0010] The beneficial effects of this utility model are as follows: Based on the down-proof comforter of this utility model, the middle layer of the I-shaped spacer fabric is evenly and vertically arranged between the upper and lower layers, and two adjacent middle layers form a rectangular filling space with the upper and lower layers. The down can be directly filled into the rectangular filling space, avoiding the problem that there are stitches between the upper and lower fabrics, which would leave needle holes after sewing, and the down can easily escape from these needle holes. At the same time, it also has certain antistatic, antibacterial, antimildew and antimite properties, and the comforter has a soft and smooth feel. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the cross-sectional structure of the down-proof comforter involved in this utility model;
[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the I-shaped spacer fabric involved in this utility model;
[0013] Figure 3 The diagram shows the weave patterns of single-rake plain weave and double-rake plain weave patterns involved in this utility model.
[0014] Figure 4 This is a diagram of the double warp structure and the top junction structure involved in this utility model;
[0015] Figure 5 This is a diagram of the lower warp double structure and the lower joint structure involved in this utility model;
[0016] Figure 6 This is a diagram of the weave of the I-shaped spacer fabric involved in this utility model;
[0017] In the diagram: 1-Duvet cover, 2-Duvet insert, 3-I-shaped spacer fabric, 4-Filling, 5-Upper layer, 6-Lower layer, 7-Middle layer. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] Example 1
[0020] Combination Figure 1-6 This embodiment provides a detailed description of a down-proof comforter, comprising: a comforter cover 1 and a comforter core 2, wherein the comforter core 2 is disposed inside the comforter cover 1; the comforter core 2 includes an I-shaped spacer fabric 3 and a filling material 4; the I-shaped spacer fabric 3 includes an upper layer 5, a lower layer 6, and a middle layer 7 woven from warp and weft yarns, wherein the middle layer 7 is evenly and vertically arranged between the upper layer 5 and the lower layer 6, and adjacent two middle layers 7 form a rectangular filling space with the upper layer 5 and the lower layer 6; the filling material 4 fills the rectangular filling space; the filling material 4 is down.
[0021] Furthermore, the duvet cover 1 is woven from imitation rabbit hair core-spun yarn. The imitation rabbit hair core-spun yarn uses viscose, nylon, and imitation rabbit hair nylon blended raw materials as the outer fiber, and PBT filaments with opposite twist directions as the core yarn, with a yarn fineness of 21 tex. PBT filaments are resistant to chlorine, acids and alkalis, light, and heat, and possess good abrasion resistance, dimensional stability, and elasticity, with elasticity unaffected by humidity. The viscose staple fiber in the outer fiber has good moisture absorption and dyeing properties, does not generate static electricity, and provides good comfort. The nylon staple fiber has high strength and good elasticity, compensating for the low strength and poor elasticity of viscose fiber. Imitation rabbit hair nylon is an asymmetrical fiber; its flat cross-section gives the fiber a soft, delicate feel and luster similar to rabbit hair, with good bulk and breathability, excellent anti-pilling properties, and improved fiber resilience and coverage. Imitation rabbit hair core-spun yarn overcomes the defects of natural rabbit hair yarn, such as shedding and pilling, while retaining the soft, fluffy, and smooth feel of rabbit hair yarn.
[0022] Furthermore, the basic weave of both the upper layer 5 and the lower layer 6 is plain weave; the warp yarn repeat number of the basic weave of the upper layer 5 and the lower layer 6 is 4, and the weft yarn repeat number is 8; the upper layer 5 is a single-start plain weave, and the lower layer 6 is a double-start plain weave.
[0023] Furthermore, the intermediate layer 7 is a warp-double weave; the intermediate layer weave formed by the intermediate layer warp yarns and the upper layer warp yarns is an upper warp double weave, and the intermediate layer weave formed by the intermediate layer warp yarns and the lower layer warp yarns is a lower warp double weave; the weave formed by the intermediate layer 7 and the upper layer 5 is an upper joining weave, and the weave formed by the intermediate layer 7 and the lower layer 6 is a lower joining weave.
[0024] Specifically, in Figures 3-6In the diagram, the upper warp yarns are represented by 1, 2, 3..., and the weft yarns by S1, S2, S3...; the lower warp yarns are represented by Ⅰ, Ⅱ, Ⅲ..., and the weft yarns by X1, X2, X3...; the middle warp yarns are represented by ①, ②, ③...; the warp yarns joined to the upper layer 5 are represented by S①, S②, S③...; the warp yarns joined to the lower layer 6 are represented by X①, X②, X③...; and the middle weft yarns are represented by Z1, Z2, Z3...; “△” indicates the warp point where the upper warp yarns are lifted when the middle weft yarns are inserted into the upper joining structure; “▲” indicates the warp point where the middle warp yarns are lifted when the upper weft yarns are inserted into the lower joining structure; and “●” and “○” indicate the warp points of the middle layer 7.
[0025] Based on the characteristics of the I-shaped spacer fabric 3, the intermediate layer 7 is evenly and vertically arranged between the upper layer 5 and the lower layer 6, and two adjacent intermediate layers 7 form a rectangular filling space with the upper layer 5 and the lower layer 6. Down can be directly filled into the rectangular filling space, avoiding the problem that there are stitches between the upper and lower fabrics, and that needle holes will be left after sewing, and down can easily come out from these needle holes.
[0026] Furthermore, the warp yarns of the I-shaped spacer fabric 3 are graphene-modified PET fiber filaments, and the weft yarns of the I-shaped spacer fabric 3 are copper-modified antibacterial and anti-mite polyamide 6 fiber filaments. The graphene-modified PET fiber is prepared by a blending modification method. First, graphene masterbatch is prepared by blending and extruding graphene powder with polyethylene terephthalate, and then graphene masterbatch and PET chips are blended and spun to prepare graphene-modified PET fiber. When the graphene powder mass fraction is 1.0% and the fiber is stretched 3.8 times, the orientation factor of the graphene-modified PET fiber is 0.92, and the volume resistivity is 3.29 × 10⁻⁶. 7 Ω·cm. Copper-modified antibacterial and anti-mite polyamide 6 fiber filaments are produced by coating nano-spherical copper antibacterial agents with oleic acid, then blending them with a polyamide 6 matrix, extruding and granulating to obtain antibacterial and anti-mite PA6 chips, which are then melt-spun. Copper-modified antibacterial and anti-mite polyamide 6 fibers exhibit an inhibition rate of over 99% against Escherichia coli, Candida albicans, and Staphylococcus aureus after 50 washes. The fabric achieves the highest level of mildew resistance (Level 0) and a mite repellency rate of up to 89%, demonstrating strong and durable antibacterial, mildew-proof, and anti-mite properties.
[0027] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.
Claims
1. A down-proof comforter, characterized in that, include: A duvet cover (1) and a duvet insert (2), wherein the duvet insert (2) is disposed inside the duvet cover (1); the duvet insert (2) includes a herringbone-shaped spacer fabric (3) and a filling material (4); the herringbone-shaped spacer fabric (3) includes an upper layer (5), a lower layer (6) and a middle layer (7) woven from warp and weft yarns, wherein the middle layer (7) is evenly and vertically arranged between the upper layer (5) and the lower layer (6), and adjacent middle layers (7) form a rectangular filling space with the upper layer (5) and the lower layer (6); the filling material (4) is filled in the rectangular filling space; the filling material (4) is down.
2. The down-proof comforter according to claim 1, characterized in that, The duvet cover (1) is made of imitation rabbit hair core-spun yarn.
3. A down-proof comforter according to claim 1, characterized in that, The basic weave of the upper layer (5) and the lower layer (6) is plain weave; the warp repeat number of the basic weave of the upper layer (5) and the lower layer (6) is 4, and the weft repeat number is 8; the upper layer (5) is a single-start plain weave and the lower layer (6) is a double-start plain weave.
4. A down-proof comforter according to claim 1, characterized in that, The intermediate layer (7) is a warp-double weave; the intermediate layer (7) formed by the warp yarns of the intermediate layer (7) and the warp yarns of the upper layer (5) is an upper warp double weave, and the intermediate layer (7) formed by the warp yarns of the intermediate layer (7) and the warp yarns of the lower layer (6) is a lower warp double weave; the weave formed by the connection between the intermediate layer (7) and the upper layer (5) is an upper connection weave, and the weave formed by the connection between the intermediate layer (7) and the lower layer (6) is a lower connection weave.
5. A down-proof comforter according to claim 1, characterized in that, The warp yarn of the I-shaped spacer fabric (3) is graphene-modified PET fiber filament, and the weft yarn of the I-shaped spacer fabric (3) is copper-modified antibacterial and anti-mite polyamide 6 fiber filament.