High-density waxberry down and production equipment thereof
By using ultra-fine polyester yarn to create a high-density woven fabric and a honeycomb air-layer structure in the bayberry down, a double-layer staggered down is formed, which solves the problems of low density and complex preparation process of bayberry down, and improves the warmth and aesthetics of high-density bayberry down.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LIANGFENG LEADING TECH DEV CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-02
Smart Images

Figure CN224313813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of warp knitting technology, and in particular to a high-density bayberry down and its production equipment. Background Technology
[0002] With the improvement of consumption quality, people's requirements for the comfort and functionality of clothing fabrics are increasing. Fleece fabrics, with their unique texture, continue to be widely favored in the home textile and apparel industries. Warp-knitted short pile products are particularly outstanding, offering a significantly comfortable experience due to their soft and delicate feel, smooth and non-irritating pile, and upright, non-flattening pile. While the pile height of conventional warp-knitted fleece fabrics is mostly between 2.5-6mm, short pile products, through process optimization, can have their pile height precisely controlled within the range of 0.5-2.5mm. Currently, the industry mainly uses three processes to achieve the warp-knitted fleece effect: napping, double-needle bed fabric splitting, and brushing.
[0003] Against this backdrop, "Yangmei Fleece" has emerged as a new functional fabric. Designed specifically for winter clothing, its core advantages lie in achieving a triple breakthrough in "lightness, warmth, and style": First, a lightweight experience, significantly reducing the heaviness of traditional winter wear and improving wearing flexibility; second, constant temperature insulation, with innovative technology maintaining a comfortable body temperature of close to 37°C, effectively locking in body heat; and third, fashionable expression, with the fleece surface possessing a high-end texture, perfectly matching popular designs such as preppy sailor collars and exquisite Snoopy embroidery, easily handling diverse occasions.
[0004] However, current bayberry down still has obvious limitations: the existing bayberry down has low density, complex preparation process, and is not warm enough.
[0005] Therefore, there is a continued need in the field for a high-density bayberry floss and its production equipment. Utility Model Content
[0006] To overcome the shortcomings of existing technologies, this application provides a high-density bayberry down and its production equipment to solve the significant limitations of current bayberry down: the existing bayberry down has low density, complex preparation process, and insufficient warmth retention.
[0007] To address the aforementioned technical problems, this application provides the following technical solutions.
[0008] In a first aspect, this application provides a high-density bayberry floss, comprising:
[0009] Greige fabric;
[0010] A pile layer is disposed on the base yarn layer, and the pile density of the pile layer is 300-500 particles / cm². 2 The pile layer has a first pile and a second pile arranged in a staggered manner, and the length of the first pile is greater than the length of the second pile.
[0011] Furthermore, the free ends of the first and second fibers are non-pointed.
[0012] Furthermore, the diameter of the first down is smaller than the diameter of the second down.
[0013] Furthermore, the bottom filament layer includes:
[0014] bottom layer;
[0015] The intermediate layer is a honeycomb air sandwich structure, and the fluff layer is disposed on the honeycomb air sandwich structure.
[0016] Furthermore, the intermediate layer comprises polyester hollow fibers and low-melting-point nylon composite yarn, which are interwoven with each other. The polyester hollow fibers and the low-melting-point nylon composite yarn are woven together to form a closed air chamber. The bottom layer, the polyester hollow fibers, the low-melting-point nylon composite yarn, and the closed air chamber form the honeycomb air sandwich structure.
[0017] Furthermore, the aperture of the sealed air chamber is 0.5-1 mm.
[0018] This application also proposes a production apparatus for winding the aforementioned high-density bayberry floss, comprising:
[0019] Machine tool;
[0020] A reel, which is mounted on the machine base;
[0021] An electric motor is connected to the reel drive to drive the reel shaft to rotate.
[0022] A size limiting device, the size limiting device having a limiting member, the limiting member having a semi-circular notch, the semi-circular notch facing the peripheral wall of the winding wheel, the winding wheel being partially located within the semi-circular notch, and the radius of the winding wheel being smaller than the radius of the semi-circular notch, the axis of the winding wheel being aligned with the axis of the semi-circular notch;
[0023] A guide member is disposed on the machine base and located above the reel;
[0024] One end of the high-density bayberry fluff passes through the guide and is fixed to the circumferential wall of the roller. The motor drives the roller to rotate so as to wind the high-density bayberry fluff onto the roller.
[0025] Furthermore, the size limiting device also includes:
[0026] A movable support is provided, the bottom of which is slidably connected to the machine base. The movable support can slide relative to the roller. A limiting member is slidably disposed on the movable support and can slide up and down.
[0027] Furthermore, both the movable support and the limiting member are equipped with micrometers.
[0028] Furthermore, the production equipment also includes:
[0029] An infrared pair in-situ detector is disposed on the axial end of the reel.
[0030] Compared with the prior art, the beneficial effects of this application are as follows:
[0031] This high-density bayberry fleece fabric uses ultra-fine polyester yarn woven fabric as a base, and forms a double-layer staggered fleece structure through crimping, napping, and tufting processes: the first layer of fleece is fluffy and has good heat insulation, while the second layer of fleece is dense, windproof, and fills the gaps. Both layers have a density of 300-500 particles / cm². 2 The density of the interwoven fibers is remarkable. This combination of long and short fibers significantly enhances warmth and creates a textured, granular feel. The interwoven fibers also help to trap dust during everyday wear, balancing practicality and aesthetics. Attached Figure Description
[0032] This application can be better understood by describing its embodiments in conjunction with the accompanying drawings, in which:
[0033] Figure 1 This diagram shows a cross-sectional structure of one embodiment of high-density bayberry floss according to the present application;
[0034] Figure 2 What is displayed is Figure 1 A magnified view of a portion of point N in the middle;
[0035] Figure 3 This diagram shows a structural schematic of one embodiment of the production equipment according to this application;
[0036] Figure 4 This diagram shows a structural schematic of another perspective of one embodiment of the production equipment according to this application.
[0037] In the above figures, the meanings of the reference numerals are as follows:
[0038] 1. Greige fabric; 101. Bottom layer; 102. Middle layer; 13. Sealed air chamber; 2. Pile layer; 3. First pile; 4. Second pile; 5. Machine base; 6. Roller; 7. Motor; 8. Size limiting device; 801. Limiting component; 802. Semi-circular notch; 803. Moving bracket; 804. Micrometer; 10. Guide component; 11. Infrared pair tube in-situ detector. Detailed Implementation
[0039] Unless otherwise defined, the technical or scientific terms used in this specification and claims shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.
[0040] All the values listed in this article, ranging from the lowest to the highest, refer to all values obtained by incrementing the lowest and highest values by one unit when the difference between the lowest and highest values is more than two units.
[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0042] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0043] "Yangmei Velvet" is not a standard textile raw material or fabric name. It is usually a marketing name or colloquial term used by merchants to refer to a certain style of velvet fabric, named for the small granular bumps on its surface that resemble the surface of a bayberry fruit.
[0044] As consumer quality improves, people's demands for the comfort and functionality of clothing fabrics are increasing. Pile fabrics, with their unique texture, continue to be widely favored in the home textile and apparel industries. Warp-knitted short pile products are particularly outstanding, offering a significantly comfortable experience due to their soft and delicate feel, smooth and non-irritating pile, and upright, non-flattening pile. While the pile height of conventional warp-knitted pile fabrics is typically between 2.5-6mm, short pile products, through optimized processes, can have their pile height precisely controlled within the range of 0.5-2.5mm. Currently, the industry mainly uses three processes to achieve the warp-knitted pile effect: napping, double-needle bed fabric splitting, and brushing.
[0045] Against this backdrop, "Yangmei Fleece" has emerged as a new functional fabric. Designed specifically for winter clothing, its core advantages lie in achieving a triple breakthrough in "lightness, warmth, and style": First, a lightweight experience, significantly reducing the heaviness of traditional winter wear and improving wearing flexibility; second, constant temperature insulation, with innovative technology maintaining a comfortable body temperature of close to 37°C, effectively locking in body heat; and third, fashionable expression, with the fleece surface possessing a high-end texture, perfectly matching popular designs such as preppy sailor collars and exquisite Snoopy embroidery, easily handling diverse occasions.
[0046] However, current bayberry down still has obvious limitations: the existing bayberry down has low density, complex preparation process, and is not warm enough.
[0047] In view of this, such as Figures 1-2 As shown, this application proposes a high-density bayberry fleece fabric, which includes: a base yarn layer 1; and a fleece layer 2, wherein the fleece layer 2 is disposed on the base yarn layer 1, and the fleece density of the fleece layer 2 is 300-500 particles / cm². 2 The pile layer 2 has a first pile 3 and a second pile 4 arranged in a staggered manner, and the length of the first pile 3 is greater than the length of the second pile 4.
[0048] In this embodiment, the base layer 1 is used as the base layer, and fine denier bayberry fleece, such as 0.8D polyester filament, can be used, woven by a high-needle-count loom to increase the fleece density and enhance the warmth retention. This application achieves this by setting a fleece layer 2 on the same piece of fabric 1, and using crimping, napping, and tufting processes to weave the first fleece 3 and the second fleece 4 alternately onto the base layer 1 to obtain a dense bayberry fleece. Specifically, the fleece density of the fleece layer 2 is 300-500 particles / cm². 2 To further enhance the warmth retention effect, the lengths of the first down 3 and the second down 4 are set to be different to increase the bending angle and performance of the bayberry down, thereby improving the warmth retention effect and facilitating production and processing.
[0049] like Figure 2As shown, preferably, the length of the first pile 3 is uniformly greater than the length of the second pile 4. The combination of different lengths of the first pile 3 and the second pile 4 is like adding a natural air conditioner to the garment. The long, fluffy pile locks in warm air, acting as an insulating lining, while the dense, windproof, and breathable second pile 4 fills gaps to prevent heat loss, thus improving overall warmth. At the same time, the first pile 3 is soft and absorbent, such as under the armpits, while the second pile 4 is wear-resistant and stain-resistant, such as at the cuffs. When touched, it has a distinct textured feel, and the alternating lengths can also hide dust during daily wear, making it both practical and attractive.
[0050] Specifically, the free ends of the first fluff 3 and the free ends of the second fluff 4 are non-pointed shapes.
[0051] like Figure 2 As shown, in this embodiment, the free ends of the first fluff 3 and the free ends of the second fluff 4 are non-pointed, for example, the free ends are spherical, to avoid causing discomfort to the human skin and increase the comfort of the fluff layer 2 to fit the skin.
[0052] Specifically, the diameter of the first pile 3 is smaller than the diameter of the second pile 4. In this embodiment, the diameters of the first pile and the second pile 4 are different, and the use of two different pile thicknesses achieves a "balance of rigidity and softness" effect. The first pile 3 fills the gaps like a sponge, locking in a large amount of still air to enhance warmth, while the second pile 4 acts like a spring support to create a fluffy space, allowing the fabric to quickly rebound after being compressed. This combination improves warmth retention efficiency while also extending its lifespan under pressure.
[0053] like Figure 1 As shown, specifically, the base yarn layer 1 includes: a bottom layer 101; and an intermediate layer 102, wherein the intermediate layer 102 has a honeycomb-shaped air gap structure, and the pile layer 2 is disposed on the honeycomb-shaped air gap structure. In this embodiment, in order to further improve the warmth retention performance, the fabric 1 of this application adopts a multi-layer fabric structure, wherein the bottom layer 101 serves as the base fabric, and an intermediate layer 102 is disposed between the pile layer 2 and the bottom layer 101. The intermediate layer 102 is configured as a honeycomb-shaped air gap structure, which improves the warmth retention performance with its unique honeycomb-shaped air gap.
[0054] Specifically, the intermediate layer 102 comprises polyester hollow fibers (not shown in the figure) and low-melting-point nylon composite yarn (not shown in the figure), which are interwoven. The polyester hollow fibers and the low-melting-point nylon composite yarn are woven together to form a closed air chamber 103. The bottom layer 101, the polyester hollow fibers, the low-melting-point nylon composite yarn, and the closed air chamber 103 form the honeycomb-shaped air sandwich structure. In this embodiment, the bottom layer 101 is made of fine denier bayberry down, for example, woven by a high-needle count knitting machine, which can increase the pile density and ensure warmth. The intermediate layer 102 is woven on the bottom layer 101 with polyester hollow fibers and low-melting-point nylon composite yarn, and a closed air chamber 103 is formed at the junction of the interweaving, using still air to enhance heat insulation.
[0055] Specifically, the aperture of the sealed air chamber 103 is 0.5-1mm. Preferably, the aperture of the sealed air chamber 103 is 0.5-1mm to ensure that the fabric surface is flat overall, and the small-sized sealed air chamber 103 provides stronger heat insulation.
[0056] like Figures 3-4 As shown, after the high-density bayberry floss of this application is produced, in order to facilitate subsequent transportation and transfer, the sheet-like high-density bayberry floss needs to be rolled into a bundle. Therefore, the production equipment proposed in this application, used for rolling the aforementioned high-density bayberry floss, includes: a machine base 5; a winding wheel 6, the winding wheel 6 being mounted on the machine base 5; a motor 7, the motor 7 being connected to the winding wheel 6 to drive the shaft of the winding wheel 6 to rotate; and a size limiting device 8, the size limiting device 8 having a limiting member 801, the limiting member 801 having a semi-circular notch 802, the semi-circular notch... 802 faces the peripheral wall of the winding wheel 6, the winding wheel 6 is partially located within the semi-circular notch 802, and the radius of the winding wheel 6 is smaller than the radius of the semi-circular notch 802. The axis of the winding wheel 6 is aligned with the axis of the semi-circular notch 802. A guide 10 is provided on the machine base 5 and located above the winding wheel 6. One end of the high-density bayberry fluff passes through the guide 10 and is fixed to the peripheral wall of the winding wheel 6. The motor 7 drives the winding wheel 6 to rotate so as to wind the high-density bayberry fluff onto the winding wheel 6.
[0057] In this embodiment, the machine base 5 is made of relatively stable and heavy cast iron, and a motor 7 and a winding wheel 6 are fixedly installed on the machine base 5. The winding wheel 6 is located above the motor 7, and the motor 7 and the winding wheel 6 can be connected by a pulley drive. After the motor 7 starts, it drives the winding wheel 6 to rotate around its own axis through the pulley. In order to limit the diameter of the bundled high-density bayberry floss, a size limiting device 8 can be set on the machine base 5. The semi-circular notch 802 of the limiting member 801 is used to limit the radial position of the winding wheel 6. For example, the semi-circular notch 802 is fitted onto the winding wheel 6 so that the center line of the winding wheel 6 is aligned with the center line of the semi-circular notch 802. The distance between the peripheral surface of the winding wheel 6 and the inner surface of the semi-circular notch 802 is the maximum diameter range of the subsequently bundled high-density bayberry floss. At the same time, in order to guide one end of the sheet-like high-density bayberry floss to be smoothly transferred to the winding wheel 6, a guide member 10 can be set on the machine base 5 and above the winding wheel 6.
[0058] When one end of the processed, sheet-like high-density bayberry floss is placed on the guide 10, passing through the circumferential wall of the roller 6 to the inner surface of the semi-circular notch 802, and is fixedly connected to the circumferential wall of the roller 6, after the motor 7 is started, the roller 6 is driven by the pulley to rotate around its own axis, and the sheet-like high-density bayberry floss is pulled along with the roller 6 and wound up on the roller 6 until the cylindrical bundle of high-density bayberry floss comes into contact with the inner wall of the semi-circular notch 802, then the winding ends.
[0059] like Figure 3 As shown, specifically, the size limiting device 8 further includes: a movable support 803, the bottom of which is slidably connected to the machine base 5. The movable support 803 can slide relative to the winding wheel 6. The limiting member 801 is slidably disposed on the movable support 803 and can slide up and down. In this embodiment, to facilitate the adjustment of the distance between the peripheral surface of the winding wheel 6 and the inner surface of the semi-circular notch 802, a movable support 803 can be provided on the machine base 5. The movable support 803 can slide relative to the winding wheel 6. When the limiting member 801 is installed on the movable support 803, the distance in the X-axis direction can be adjusted through the movable support 803. At the same time, the limiting member 801 can also slide on the movable support 803 in the up and down direction, facilitating the adjustment of the limiting member 801 in the Z-axis direction. The winding wheel 6 is located in the X-axis direction. Therefore, when it is necessary to adjust the diameter of the high-density bayberry fluff rolled into a bundle, only the position of the movable support 803 and the position of the limiting member 801 need to be adjusted, improving the convenience of worker operation.
[0060] Specifically, both the movable bracket 803 and the limiting member 801 are equipped with micrometers 804.
[0061] In this embodiment, in order to improve the adjustment accuracy, a micrometer 804 can be provided on both the movable bracket 803 and the limiting member 801.
[0062] Specifically, the production equipment further includes an infrared pair presence detector 11, which is disposed on the axial end of the winding reel 6. In this embodiment, the infrared pair presence detector 11 can also be disposed on the axial end of the winding reel 6, and the distance between the infrared pair presence detector 11 and the peripheral wall of the winding reel 6 can be set to limit the distance between the surface of the peripheral wall of the winding reel 6 and the inner surface of the semi-circular notch 802. The infrared pair presence detector 11 can be connected to the central control point of the equipment. When the infrared pair presence detector 11 is triggered, the equipment stops the winding command.
[0063] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A high-density bayberry floss, characterized in that, include: Base layer; A pile layer is disposed on the base yarn layer, and the pile density of the pile layer is 300-500 particles / cm². 2 The pile layer has a first pile and a second pile arranged in a staggered manner, and the length of the first pile is greater than the length of the second pile.
2. The high-density bayberry floss according to claim 1, characterized in that, The free ends of the first and second fibers are non-pointed.
3. The high-density bayberry floss according to claim 1, characterized in that, The diameter of the first down is smaller than the diameter of the second down.
4. The high-density bayberry floss according to claim 1, characterized in that, The bottom filament layer includes: bottom layer; The intermediate layer is a honeycomb air sandwich structure, and the fluff layer is disposed on the honeycomb air sandwich structure.
5. The high-density bayberry floss according to claim 4, characterized in that, The intermediate layer comprises polyester hollow fibers and low-melting-point nylon composite yarn, which are interwoven with each other. The polyester hollow fibers and the low-melting-point nylon composite yarn are woven together to form a closed air chamber. The bottom layer, the polyester hollow fibers, the low-melting-point nylon composite yarn, and the closed air chamber form the honeycomb air sandwich structure.
6. The high-density bayberry floss according to claim 5, characterized in that, The aperture of the sealed air chamber is 0.5-1 mm.
7. A production apparatus for winding high-density bayberry floss as described in any one of claims 1-5, characterized in that, include: Machine tool; A reel, which is mounted on the machine base; An electric motor is connected to the reel drive to drive the reel shaft to rotate. A size limiting device, the size limiting device having a limiting member, the limiting member having a semi-circular notch, the semi-circular notch facing the peripheral wall of the winding wheel, the winding wheel being partially located within the semi-circular notch, and the radius of the winding wheel being smaller than the radius of the semi-circular notch, the axis of the winding wheel being aligned with the axis of the semi-circular notch; A guide member is disposed on the machine base and located above the reel; One end of the high-density bayberry fluff passes through the guide and is fixed to the circumferential wall of the roller. The motor drives the roller to rotate so as to wind the high-density bayberry fluff onto the roller.
8. The production equipment according to claim 7, characterized in that, The size limiting device further includes: A movable support is provided, the bottom of which is slidably connected to the machine base. The movable support can slide relative to the roller. A limiting member is slidably disposed on the movable support and can slide up and down.
9. The production equipment according to claim 8, characterized in that, Both the movable support and the limiting member are equipped with micrometers.
10. The production equipment according to claim 7, characterized in that, The production equipment also includes: An infrared pair in-situ detector is disposed on the axial end of the reel.