Warm down quilt

Abstract

The utility model discloses a warm-keeping down quilt, which belongs to the technical field of household textiles, and comprises a quilt cover and a down layer filled in the quilt cover, at least two layers of down filling layers fixedly sewn with each other are arranged in the quilt cover, the outer layer is close to the inner surface of the quilt cover, and the inner layer is positioned on the inner side of the outer layer. The down feather content of the outer layer is higher than that of the inner layer, a down-proof structure is arranged on the surface of the quilt cover, the down-proof structure comprises a high-count and high-density fabric layer and double-layer down-proof stitches, and comprehensive optimization of heat retention property, breathability and economical efficiency is achieved through the down quilt with the synergistic effect of down layer gradient configuration, dynamic partition filling and the composite down-proof technology.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of household textiles, more particularly to a down quilt achieving efficient heat preservation and performance optimization of anti-pilling through multi-layer partition structure. BACKGROUND

[0002] As a common bedding, the heat preservation performance and comfort of the down quilt directly affects the sleep quality of the user. However, the traditional down quilt usually adopts a single-layer uniform filling structure design, which has the following technical defects:

[0003] 1. Low heat preservation efficiency: the single down content filling layer is difficult to balance the bulkiness and heat storage performance, and the human core area (chest and abdomen) is prone to form a heat loss channel;

[0004] 2. Contradiction between cost and performance: high down content (> 90%) down has good heat preservation, but the cost is high; low down content products are economical, but the thermal resistance value (CLO value) decreases significantly;

[0005] 3. Anti-pilling defects: conventional anti-pilling processes rely on increasing fabric count (such as 400T or more), which reduces the air permeability of the fabric to <50L / (m²·s), affecting sleep comfort;

[0006] 4. Extensive structure design: there is no differentiated filling scheme for the heat distribution characteristics of the human body, and turning over at night easily causes local accumulation of down. UTILITY MODEL CONTENT

[0007] 1. Technical problem to be solved:

[0008] In view of the problems existing in the prior art, the purpose of the utility model is to provide a warm down quilt, which realizes the comprehensive optimization of heat preservation, air permeability and economy through the synergistic effect of down layer gradient configuration, dynamic partition filling and composite anti-pilling process.

[0009] 2. Technical scheme:

[0010] To solve the above problems, the utility model adopts the following technical scheme.

[0011] A warm down quilt, comprising a quilt cover and a down layer filled in the quilt cover, wherein the inside of the quilt cover is provided with at least two layers of down filling layers fixed by sewing, including an outer layer close to the inner surface of the quilt cover and an inner layer located inside the outer layer, the down content of the outer layer is higher than that of the inner layer, the surface of the quilt cover is provided with an anti-pilling structure, and the anti-pilling structure comprises a high-count high-density fabric layer and a double-layer anti-pilling stitch.

[0012] Further improvement lies in that the down content of the outer layer is 90%-95%, and the down content of the inner layer is 80%-85%.

[0013] Further improvement lies in that the double-layer anti-pilling stitch has a pitch of 2-3 mm and a sewing thread density of 12-15 stitches / 3 cm.

[0014] Further improvement lies in that the quilt cover is internally provided with longitudinal partitioning partitions to divide the down layer into at least three longitudinal warm-keeping areas, and the down filling amount of the middle area is 10%-15% more than that of the two side areas.

[0015] Further improvement lies in that the quilt cover is internally provided with longitudinal partitioning partitions to divide the down layer into at least three longitudinal warm-keeping areas, and the down filling amount of the middle area is 10%-15% more than that of the two side areas.

[0016] Further improvement lies in that the quilt cover is internally provided with longitudinal partitioning partitions to divide the down layer into at least three longitudinal warm-keeping areas, and the down filling amount of the middle area is 10%-15% more than that of the two side areas.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical scheme has the following beneficial effects:

[0019] (1) Improved warm-keeping efficiency: the gradient filling structure increases the overall CLO value by 15-20%, and the local CLO value of the middle area reaches 0.8-1.2.

[0020] (2) Cost control: the inner layer adopts down with a lower content, and the comprehensive cost is reduced by 18-25%.

[0021] (3) Balance between anti-pilling and air permeability: the amount of down under the composite process is ≤5 roots / m², and the air permeability is kept ≥120 L / (m²·s).

[0022] (4) Enhanced fit: the partition filling makes the quilt body still maintain uniform coverage when the posture of the human body changes.

[0023] It should be noted that the structures not introduced in the utility model are the same as or can be realized by the prior art without involving the design points and improvement direction of the utility model, and thus will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 is a sectional view of the layered structure of the utility model as a whole;

[0025] Fig. 2 is a schematic view of the anti-pilling stitch and the air permeation structure of the utility model.

[0026] Explanation of reference numerals in the drawing:

[0027] 1, quilt cover; 2, outer layer; 3, inner layer; 4, high-count high-density fabric layer; 5, double-layer anti-pilling stitch; 6, longitudinal partitioning partition; 7, middle area; 8, two side areas; 9, air permeation structure. DETAILED DESCRIPTION

[0028] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "provided with", "provided in" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Please refer to Figs. 1-2 A warm down feather quilt, comprising a quilt cover 1 and a down layer filled in the quilt cover, at least two layers of down filling layers are fixed by sewing with each other in the inside of the quilt cover 1, including an outer layer 2 close to the inner surface of the quilt cover and an inner layer 3 located on the inner side of the outer layer, the down content of the outer layer 2 is higher than that of the inner layer 3, the surface of the quilt cover 1 is provided with an anti-down structure, and the anti-down structure comprises a high-count high-density fabric layer 4 and a double-layer anti-down stitch 5.

[0032] More specifically, the down content of the outer layer 2 is 90%-95%, and the down content of the inner layer 3 is 80%-85%.

[0033] More specifically, the stitch of the double-layer anti-down stitch 5 is 2-3mm, and the density of the sewing thread is 12-15 stitches / 3cm.

[0034] More specifically, the quilt cover 1 is provided with a longitudinal partition 6, which divides the down layer into at least three longitudinal warm areas, and the down filling amount of the middle area 7 is 10-15% more than that of the two side areas 8.

[0035] More specifically, the quilt cover 1 is provided with a breathable structure 9 on the back, which is an array of breathable holes or breathable mesh cloth.

[0036] More specifically, the quilt cover 1 is made of polyester-cotton blended fabric treated with nano hydrophobic treatment.

[0037] The specific structure of the warm down quilt in use is as follows,

[0038] 1. Multi-layer gradient filling structure:

[0039] The outer layer (air contact side) uses 90-95% high down content down, which forms a static air insulation layer by using its high loft (≥800FP);

[0040] The inner layer (body contact side) uses 80-85% down content down, which improves the fit and heat storage efficiency by increasing the proportion of down.

[0041] 2. Longitudinal dynamic partition design:

[0042] A longitudinal partition (distance 40-60cm) is arranged in the quilt body to divide at least three filling areas;

[0043] The filling amount of the middle area is 10-15% more than that of the two side areas, which compensates for the heat loss of the core area of the human body.

[0044] 3. Composite anti-down drilling process:

[0045] The base material is 40-60 denier polyester-cotton blended fabric (warp and weft density 300-350T), which is treated with nano hydrophobic treatment to reduce the gap between fibers;

[0046] Double-locking stitch method is used for sewing, with a needle distance of 2-3mm and a thread density of 12-15 stitches / 3cm, to form a three-dimensional anti-down barrier.

[0047] 4. Breathability optimization:

[0048] A laser perforated array with a diameter of 0.3-1mm (hole spacing 1-3cm) is arranged on the back, or a mesh cloth area with a permeability of ≥200L / (m²·s) is embedded.

[0049] Example 1 (winter thickening type):

[0050] Quilt cover: 50 denier 320T polyester-cotton blended fabric treated with fluorocarbon compound nano coating;

[0051] Outer layer filling: 95% content of Hungarian white goose down, filling amount 110g / m², loftiness 850FP;

[0052] Inner layer filling: 85% content of Northeast gray duck down, filling amount 130g / m², loftiness 750FP;

[0053] Partition design: longitudinal partition interval 50cm, middle zone filling amount increased by 15%;

[0054] Sewing process: double-needle four-thread overlock machine, stitch length 2.8mm, thread density 13 needles / 3cm;

[0055] Breathable structure: back laser punching diameter 0.8mm, hole spacing 2cm, opening rate 8%.

[0056] Example 2 (spring and autumn light and thin type):

[0057] Duvet cover: 60 pieces of 350T superfine denier polyester fiber, treated by plasma water repellent;

[0058] Outer layer filling: 90% content of Iceland goose down, filling amount 80g / m², loftiness 900FP;

[0059] Inner layer filling: 80% content of Polish goose down, filling amount 100g / m², loftiness 800FP;

[0060] Breathable structure: back embedded 20cm×30cm rectangular breathable mesh cloth (material is Coolmax® polyester).

[0061] Effect test data

[0062] Referring to GB / T 14272-2021 "Down clothing" standard:

[0063]

[0064] In summary, in the utility model, it can also be implemented through the existing down product production line, only need to increase the partition filling control system (such as PLC controlled automatic weighing and sub-packaging equipment) and laser punching / mesh cloth composite equipment, with large-scale production feasibility.

[0065] The above-described embodiments only express some implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the utility model; it should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model; therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A warm-keeping duvet comprising a duvet cover (1) and a duvet layer filled in the duvet cover, characterized in that: The quilt cover (1) is internally provided with at least two layers of mutually sewn fixed down feather filling layers, including an outer layer (2) close to the inner surface of the quilt cover and an inner layer (3) located inside the outer layer, the down feather content of the outer layer (2) is higher than that of the inner layer (3), the surface of the quilt cover (1) is provided with an anti-drilling down structure, and the anti-drilling down structure includes a high-branch high-density fabric layer (4) and a double-layer anti-down needle stitch (5).

2. The thermal down duvet according to claim 1, wherein: The down feather content of the outer layer (2) is 90%-95%, and the down feather content of the inner layer (3) is 80%-85%.

3. The thermal down duvet according to claim 1, wherein: The stitch length of the double-layer anti-down needle stitch (5) is 2-3mm, and the sewing thread density is 12-15 stitches / 3cm.

4. The thermal down duvet according to claim 1, wherein: The quilt cover (1) is internally provided with a longitudinal partition (6), which divides the down feather layer into at least three longitudinal warm-keeping areas, and the down feather filling amount of the middle area (7) is 10%-15% more than that of the two side areas (8).

5. The thermal down duvet of claim 1, wherein: The quilt cover (1) is internally provided with a longitudinal partition (6), which divides the down feather layer into at least three longitudinal warm-keeping areas, and the down feather filling amount of the middle area (7) is 10%-15% more than that of the two side areas (8).

6. The thermal down duvet according to claim 1, wherein: The quilt cover (1) is internally provided with a longitudinal partition (6), which divides the down feather layer into at least three longitudinal warm-keeping areas, and the down feather filling amount of the middle area (7) is 10%-15% more than that of the two side areas (8). The quilt cover (1) adopts a polyester cotton blended fabric treated by nano hydrophobic treatment.

Images