Three-layer bristle polar fleece fabric and preparation method thereof

Abstract

The invention relates to the technical field of polar fleece fabrics, in particular to a three-layer bristle polar fleece fabric and a preparation method thereof. The preparation method comprises the following steps: weaving the top layer, the middle layer and the bottom layer which are connected in sequence to form gray cloth; the gray cloth is subjected to processes of brushing and polar fleece to obtain a three-layer brushed polar fleece fabric; the top layer and the bottom layer are both formed by weaving two kinds of yarn with different yarn lengths in a staggered mode. According to the preparation method, double-sided brushing polar fleece is made on a sandwich-like structure, so that a high-thickness fabric is obtained, and the functions of stiffness, wind resistance and warm keeping are improved when a coat is made. The top layer and the bottom layer are both formed by weaving two kinds of yarn with different yarn lengths in a staggered mode, the long yarn length is used for sanding, the short yarn length is used for locking a coil, it is guaranteed that after sanding, loosening is avoided, and the fastness degree and the convenience degree of bristles are improved.

Description

Technical Field

[0001] This invention relates to the field of fleece fabric technology, specifically to a three-layer brushed fleece fabric and its preparation method. Background Technology

[0002] Existing fleece outerwear fabrics, as shown in Chinese invention patent application number 201710164458.4, are made by knitting terry yarn and ground yarn into a terry fabric using a single-sided weft knitting terry structure, and then sequentially undergoing processes such as napping, brushing, combing, shearing, and fleecing to produce fleece fabric. Fabrics produced using this process lack crispness, resulting in a slouchy fit when worn. Furthermore, the brushing and fleecing process reduces the fabric's windproof performance; while it may appear warm, it is actually prone to letting in drafts. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a crisp, windproof and warm three-layer brushed fleece fabric and its preparation method.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a method for preparing a three-layer brushed fleece fabric, comprising the following steps: weaving a top layer, a middle layer and a bottom layer connected in sequence to form a greige fabric; the greige fabric is brushed and fleeced to obtain a three-layer brushed fleece fabric. Both the top and bottom layers are woven from two types of yarns with different lengths.

[0005] Another technical solution adopted in this invention is: a three-layer brushed fleece fabric prepared by the above-mentioned method for preparing three-layer brushed fleece fabric.

[0006] The beneficial effects of this invention are as follows: The preparation method of this invention obtains a high-thickness fabric by creating double-sided brushed fleece on a sandwich-like structure, thereby improving the crispness, windproofness, and warmth when making outerwear. Both the top and bottom layers are woven with two types of yarns of different lengths, with the longer yarn used for brushing and the shorter yarn used to lock the loops, ensuring that the fleece does not unravel after brushing, thus improving the strength and ease of use of the brushed fleece. Attached Figure Description

[0007] Figure 1 This is a photograph of a three-layer brushed fleece fabric according to an embodiment of the present invention. Figure 2 This is a cross-sectional schematic diagram of the three-layer brushed fleece fabric according to an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the three-layer brushed fleece fabric used in the present invention as a comparative example. Detailed Implementation

[0008] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0009] A method for preparing a three-layer brushed fleece fabric includes the following steps: weaving a top layer, a middle layer and a bottom layer connected in sequence to form a greige fabric; the greige fabric is brushed and fleeced to obtain a three-layer brushed fleece fabric; the top layer and the bottom layer are both woven from two yarns of different lengths.

[0010] As can be seen from the above description, the beneficial effects of this invention are as follows: This invention employs a sandwich-like structure formed by sequentially connected top, middle, and bottom layers, increasing stiffness and thickness. Simultaneously, the middle layer's barrier and cushioning properties improve the fabric's windproof and warmth-retaining effects, resulting in a superior overall fabric texture. Both the top and bottom layers are woven with two different yarn lengths, creating a varied and dense fabric structure that facilitates brushing and shaping. The shorter yarns lock the loops in place, reducing unraveling after subsequent brushing, combing, and shaping, thus increasing windproof performance. The longer yarns form the subsequent brushing, creating fluffy and soft loops and improving brushing convenience.

[0011] Furthermore, the top layer is woven with a first yarn and a second yarn, with the first yarn being longer than the second yarn. The bottom layer is woven with a third and fourth yarn, with the third yarn being longer than the fourth yarn.

[0012] Furthermore, the first and third yarns should be as long as possible. "As long as possible" means the yarn length reaches the maximum value allowed by the knitting machine model used.

[0013] Furthermore, the lengths of the first and third yarns are 24-38 cm per 100 stitches.

[0014] As can be seen from the above description, the longer the thread, the looser the coil, and the easier it is to brush the bristles.

[0015] Furthermore, the DPF (denier per fiber) of the first and third yarns is ≤1.

[0016] As can be seen from the above description, the smaller the DPF, the better the brushing effect, and the larger the DPF, the more difficult it is to brush the bristles.

[0017] Furthermore, the second and fourth yarns should be as short as possible. "As short as possible" means the yarn length should be the minimum required for the type of knitting machine used.

[0018] Furthermore, the lengths of the second and fourth yarns are 14-21 cm per 100 stitches.

[0019] As can be seen from the above description, the shorter the wire length, the better the effect of locking the coil.

[0020] Existing brushed fleece fabrics are typically prepared using towel machines or loop-pile machines, while the three-layer brushed fleece fabric of this invention can be produced directly using a conventional double-sided machine and can achieve more effects using different stitch lengths.

[0021] Furthermore, the DPF of the second and fourth yarns is ≥1.

[0022] Furthermore, the intermediate layer is woven through at least three loops, forming a triangular structure.

[0023] As can be seen from the above description, the middle layer forms a triangular structure through at least three loops, which has excellent stability, thickness and weaving effect, ensuring that the middle layer is not easy to tilt or collapse and has excellent stiffness; and it increases the static air in the middle layer, improving the warmth and windproof effect of the fabric.

[0024] Furthermore, the middle layer is woven with a fifth yarn, which is a yarn with an irregular cross-section.

[0025] Furthermore, the DPF of the fifth yarn is ≥2.

[0026] As can be seen from the above description, the fifth yarn has an irregular cross-section and DPF≥2, which gives it high rigidity and improves the support performance of the intermediate layer.

[0027] Furthermore, the length of the fifth yarn is 18~34cm / 100 stitches.

[0028] Furthermore, the needle arrangement during fabric weaving is as follows: needle discs 1 and 2 are arranged in sequence, and needle cylinders 1 and 2 are arranged in sequence, where 1 represents high-heel needles and 2 represents low-heel needles.

[0029] Furthermore, when the first yarn is the same as the third yarn, and the second yarn is the same as the fourth yarn, the yarn arrangement sequence during fabric weaving is as follows: yarns 1, 2, 3, 8, 9, and 10 are the fifth yarn, yarns 4, 6, 11, and 13 are the second yarn, and yarns 5, 7, 12, and 14 are the first yarn.

[0030] Furthermore, the triangular configuration during fabric weaving is as follows: The needle plate low heel needle triangles are arranged in sequence as follows: floating triangle, tucking triangle, floating triangle, forming triangle, forming triangle, floating triangle, floating triangle, tucking triangle, floating triangle, tucking triangle, floating triangle, forming triangle, floating triangle, floating triangle; The needle plate high heel needle triangles are arranged in sequence as follows: tufted triangle, floating triangle, tufted triangle, floating triangle, forming triangle, floating triangle, floating triangle, floating triangle, tufted triangle, floating triangle, forming triangle, forming triangle, floating triangle, floating triangle; The syringe needle triangles are arranged in sequence as follows: tufted triangle, floating triangle, floating triangle, floating triangle, floating triangle, forming triangle, forming triangle, floating triangle, tufted triangle, tufted triangle, floating triangle, floating triangle, floating triangle, forming triangle; The syringe's low-heeled needle triangles are arranged in sequence as follows: floating triangle, clustered triangle, clustered triangle, floating triangle, floating triangle, floating triangle, forming triangle, clustered triangle, floating triangle, floating triangle, floating triangle, floating triangle, forming triangle, forming triangle.

[0031] Furthermore, the greige fabric is subjected to brushing, combing, shearing, and fleecing processes in sequence to obtain a three-layer brushed fleece fabric.

[0032] Furthermore, a method for preparing a three-layer brushed fleece fabric includes the following steps performed sequentially: weaving—fabric preparation—dyeing—dehydration—first intermediate inspection—fabric spreading—drying and adding a fleece agent—second intermediate inspection—brushing—fixing—combing—shearing—fleecing—fixing; wherein weaving is the process described above for preparing the greige fabric.

[0033] Another technical solution adopted in this invention is: a three-layer brushed fleece fabric prepared by the above-mentioned method for preparing three-layer brushed fleece fabric.

[0034] As can be seen from the above description, the three-layer brushed fleece fabric of the present invention has excellent windproof, warmth and stiffness.

[0035] Embodiment 1 of the present invention is a method for preparing a three-layer brushed fleece fabric, the specific steps of which are as follows: S1, Weaving: 1) See Table 1 for needle arrangement: Table 1

[0036] 2) The triangular configuration diagram is shown in Table 2: Table 2

[0037] 3) Yarn arrangement: Yarns 1, 2, 3, 8, 9, and 10 are made of white semi-dull 30D / 12F cross-cut polyester filament FDY; Channels 4, 6, 11, and 13 use white semi-dull 100D / 48F polyester low-elasticity lightweight mesh DTY; Channels 5, 7, 12, and 14 use white semi-gloss 100D / 144F polyester high-elastic lightweight mesh DTY.

[0038] 4) Yarn length: The yarn length for lines 1, 2, 3, 8, 9, and 10 is 23.5 cm per 100 stitches; The length of lines 4, 6, 11, and 13 is 16 cm per 100 stitches; Routes 5, 7, 12, and 14 are 32 cm long per 100 stitches.

[0039] S2. Dyeing: Dye in an overflow dyeing machine at a temperature of 130℃ for 40 minutes. See Table 3 for the type and manufacturer of the dye.

[0040] Table 3

[0041] S3, Dehydration.

[0042] S4, China Inspection.

[0043] S5. Drying and Adding a Hair-Raising Agent: Drying and adding a hair-raising agent are carried out using a tenter frame at a drying temperature of 140℃. The hair-raising agent is a hydrophilic hair-raising agent RS-CM, manufactured by Foshan Chenhui Chemical. S6. Inspection.

[0044] S7. Post-processing route: S71. Brushing: The fabric is brushed three times on each side using straight and curved needles, with each brushing process involving nine brushing machines. Unit 1: Guide speed 20m / min, needle start speed 110RPM, needle cover speed 85RPM, needle start / cover air pressure 4kg; Unit 2: Reverse guide fabric speed 20m / min, needle start speed 120RPM, needle cover speed 60RPM, needle start / cover air pressure 4kg; Unit 3: Reverse guide fabric speed 20m / min, needle start speed 125RPM, needle cover speed 60RPM, needle start / cover air pressure 4kg; Unit 4: Reverse guide fabric speed 20m / min, needle start speed 130RPM, needle cover speed 65RPM, needle start / cover air pressure 4kg; Unit 5: Positive guide speed 20m / min, needle start speed 116RPM, needle cover speed 85RPM, needle start / cover air pressure 4kg; Unit 6: Guide fabric speed 20m / min, needle start speed 120RPM, needle cover speed 76RPM, needle start / cover air pressure 4kg; Unit 7: Reverse guide fabric speed 20m / min, needle start speed 130RPM, needle cover speed 68RPM, needle start / cover air pressure 4kg; Unit 8: Guide fabric speed 20m / min, needle start speed 125RPM, needle cover speed 70RPM, needle start / cover air pressure 4kg; Unit 9: Guide speed 20m / min, needle start speed 125RPM, needle back speed 70RPM, needle start / back air pressure 4kg.

[0045] S72, Stentering: Stentering is performed using a tenter frame with a stentering temperature of 140℃, a machine speed of 25m / min, a pressure of 25N, an upper overfeed of 18%, and a lower overfeed of 0%.

[0046] S73. Combing: Use a combing machine to comb the fabric twice on both sides, for a total of 4 machines.

[0047] S74. Shearing: Use a shearing machine to shear the fabric twice on both sides, for a total of 4 machines.

[0048] Each shearing machine has a top and bottom blade width of 0.3mm and a front and rear blade width of 0.4mm (meaning it cuts the hairs downwards by 0.2mm after brushing), a tension scale of 15N, and a guide speed of 25m / min.

[0049] S75. Swirling: Place the sheared fabric in a swirling machine and swirle it at a temperature of 90℃. The drying time is 15 minutes and the cooling time is 10 minutes.

[0050] S76. Sterilization: Sterilization is carried out using a tenter frame with a sterilization temperature of 140℃, a machine speed of 25m / min, a rolling pressure of 18N, an upper overfeed of 10%, and a lower overfeed of 0%.

[0051] The actual image of the finished three-layer brushed fleece fabric prepared in Example 1 is shown below. Figure 1 See the cross-sectional diagram. Figure 2 .

[0052] Comparative Example 1 of the present invention is: The only difference between Comparative Example 1 and Example 1 is that the intermediate layer uses only one loop. (See finished product image.) Figure 3 .

[0053] Embodiment 2 of the present invention is as follows: The difference between Example 2 and Example 1 is only that the length of the yarn in routes 1, 2, 3, 8, 9, and 10 is 18cm / 100 needles, the length of the yarn in routes 4, 6, 11, and 13 is 14cm / 100 needles, and the length of the yarn in routes 5, 7, 12, and 14 is 24cm / 100 needles.

[0054] Embodiment 3 of the present invention is as follows: The only difference between Example 3 and Example 1 is that the length of the yarn in routes 1, 2, 3, 8, 9, and 10 is 34cm / 100 needles, the length of the yarn in routes 4, 6, 11, and 13 is 21cm / 100 needles, and the length of the yarn in routes 5, 7, 12, and 14 is 38cm / 100 needles.

[0055] Embodiment four of the present invention is as follows: The only difference between Example 4 and Example 1 is that the length of the threads in the first, second, third, eighth, ninth, and tenth threads is 20cm / 100 needles, the length of the threads in the fourth, sixth, eleventh, and thirteenth threads is 16cm / 100 needles, and the length of the threads in the fifth, seventh, twelfth, and thirteenth threads is 30cm / 100 needles.

[0056] Embodiment five of the present invention is as follows: The difference between Example 5 and Example 1 is only that the length of the threads in the first, second, third, eighth, ninth and tenth threads is 30cm / 100 needles, the length of the threads in the fourth, sixth, eleventh and thirteenth threads is 18cm / 100 needles, and the length of the threads in the fifth, seventh, twelfth and eleventh threads is 27cm / 100 needles.

[0057] In summary, the three-layer brushed fleece fabric and its preparation method provided by this invention have the following advantages: 1. By adding an intermediate layer, the windproof and heat-insulating effects of the fabric are improved.

[0058] 2. The surface layer is woven with two yarns of different lengths to provide an easy-to-brush structure, thereby achieving high-pile tufting. The shorter yarn can lock in the loops and reduce unraveling.

[0059] 3. The middle layer uses a special three-way tufted structure to increase the thickness and stiffness of the middle layer, ensuring the thickness and stiffness of the middle layer of the fabric after finishing.

[0060] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for preparing a three-layer brushed fleece fabric, characterized in that, Includes the following steps: The top layer, middle layer and bottom layer are woven in sequence to form a greige fabric; the greige fabric is then brushed and pulverized to obtain a three-layer brushed pulverized fabric. Both the top and bottom layers are woven from two types of yarns with different lengths.

2. The method for preparing the three-layer brushed fleece fabric according to claim 1, characterized in that, The top layer is woven with a first yarn and a second yarn, wherein the length of the first yarn is longer than the length of the second yarn. The bottom layer is woven with a third yarn and a fourth yarn, wherein the length of the third yarn is longer than that of the fourth yarn.

3. The method for preparing the three-layer brushed fleece fabric according to claim 2, characterized in that, The lengths of the first and third yarns should be as long as possible.

4. The method for preparing the three-layer brushed fleece fabric according to claim 2, characterized in that, The lengths of the first and third yarns are 24-38 cm per 100 stitches.

5. The method for preparing the three-layer brushed fleece fabric according to claim 2, characterized in that, The second and fourth yarns should be as short as possible.

6. The method for preparing the three-layer brushed fleece fabric according to claim 2, characterized in that, The lengths of the second and fourth yarns are 14-21 cm per 100 stitches.

7. The method for preparing the three-layer brushed fleece fabric according to claim 1, characterized in that, The intermediate layer is woven by at least three loops, which together form a triangular structure.

8. The method for preparing the three-layer brushed fleece fabric according to claim 1, characterized in that, The intermediate layer is woven from a fifth yarn, which is a yarn with an irregular cross-section.

9. The method for preparing the three-layer brushed fleece fabric according to claim 1, characterized in that, The fabric is then subjected to brushing, combing, shearing, and fleecing processes to obtain a three-layer brushed fleece fabric.

10. A three-layer brushed fleece fabric prepared by the preparation method of the three-layer brushed fleece fabric according to any one of claims 1-9.

Images