Preparation method of self-heating cashmere fabric

Abstract

The present application relates to a kind of preparation methods of self-heating cashmere fabric, comprising the following steps: cashmere fiber processing, combing, one and two, spinning, bath, weaving, ironing, finished product inspection, wherein, cashmere is treated by combing mechanism to comb cashmere, in the process of combing, powder self-heating fiber preform is added to cashmere.The preparation method is by adding self-heating preform to cashmere fiber before spinning, so that cashmere fiber is formed in the process of spinning yarn, by interwinding locking self-heating preform, in the process of bath, the microscale of cashmere fiber makes that cashmere yarn is pre-felted, effectively makes self-heating raw material stable in cashmere yarn, makes self-heating preform reach the depth of cashmere fabric, increases its firmness with cashmere fabric.

Description

Technical Field

[0001] This invention belongs to the field of cashmere fabric technology, specifically relating to a method for preparing a self-heating cashmere fabric. Background Technology

[0002] Cashmere comes from goats and consists of the fine downy hair at the base of the wool. It is characterized by its softness, comfort, warmth, lightness, and breathability. Self-heating fabric is a new type of textile product that uses various methods to give the fabric a self-heating effect.

[0003] Patent application number 202311318452.X discloses a magnetic self-heating antibacterial down jacket fabric and its preparation method. It adds self-heating fiber preforms to form self-heating fibers through melt spinning. However, when this self-heating fiber preform is applied to cashmere fabric, it cannot be added to the cashmere fibers through melt spinning. Due to the felting and shrinkage characteristics of cashmere, other solution-based self-heating materials cannot be penetrated into the depths of the cashmere fabric through padding, resulting in poor durability. Summary of the Invention

[0004] The purpose of this invention is to provide a method for preparing self-heating cashmere fabric in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] A method for preparing a self-heating cashmere fabric includes the following steps: cashmere fiber treatment, carding, first doubling, second doubling, spinning, soaking, weaving, ironing, and finished product inspection. The cashmere is carded using a carding mechanism. During the carding process, a powdered self-heating pre-material is added to the cashmere. By weight, the self-heating pre-material includes: 20-40 parts of tungsten metal particles, 10-15 parts of magnetic powder particles, and 30-50 parts of black tourmaline particles.

[0007] As a further optimization of the present invention, the cashmere fiber treatment process includes washing and drying.

[0008] As a further optimization of the present invention, the particle size of the self-heating preform is 20-400nm.

[0009] As a further optimization of the present invention, the carding mechanism includes a feeding mechanism, a cylinder assembly, a doffer, and a cutting blade, and also includes a powdering assembly for uniformly adding self-heating pre-mixed material to the cashmere. The feeding mechanism, cylinder assembly, doffer, and cutting blade are all common devices in cashmere carding machines. They card the cashmere by the difference in rotational speed between the components. The cylinder is used to card the fibers, the doffer receives and agglomerates the fibers carded by the cylinder, and the cutting blade is used to peel the fibers off the doffer.

[0010] As a further optimization of the present invention, the cylinder assembly includes a cylinder body, combing needles distributed on the outer surface of the cylinder body, and nozzles. The powder distribution assembly is located inside the cylinder body, and a radial plate is provided inside the cylinder body. Centrifugal force forms an airflow that passes through the nozzles, causing the self-heating pre-made material to impact the cashmere on the surface of the cylinder body. The self-heating pre-made material is combined with the cashmere by being sprayed outward from the inside of the cylinder body. During the high-speed rotation of the cylinder assembly, the centrifugal force helps the powder penetrate the cashmere and fully combine. Furthermore, the cashmere on the surface of the cylinder assembly itself acts as a filter, which can also prevent the self-heating pre-made material from generating a large amount of dust that pollutes the environment during the impact and combination process. In addition, in order to facilitate the full adsorption of the self-heating pre-made material and cashmere, each combing needle can be made of plastic material. During the combing process, it continuously rubs against the cashmere, causing the surface of the cashmere to become charged, so as to better adsorb the self-heating pre-made material.

[0011] As a further optimization of the present invention, the cylinder is divided into several annular cavities by a partition, and several air inlet pipes are provided in the cylinder for communicating with each annular cavity. When a centrifugal airflow is formed, gas is supplied to the annular cavity. By setting the annular cavity, the self-heating preform can be evenly diffused to the outer ring by centrifugal force, and gas is sent to each annular cavity through the air inlet pipes.

[0012] The cylinder is supported by at least six support wheels located at both ends of the cylinder and arranged in a circumferential array. The surface of the support wheels is also provided with flanges to prevent the cylinder from moving axially. The arrangement of the support wheels allows the cylinder to be supported by the edges at both ends, leaving space in the axial part for the powder distribution assembly.

[0013] As a further optimization of the present invention, the powder distribution assembly includes a powder distribution cylinder disposed inside the cylinder and coinciding with the axis of the cylinder. The outer surface of the powder distribution cylinder is concave inward along the radial direction to form an annular groove. A through hole is provided through the side wall of the groove. The powder distribution cylinder moves axially to allow the self-heating preform to leave the powder distribution cylinder through the through hole and enter the cylinder. Centrifugal force causes the self-heating preform to be dispersed at the edge of the powder distribution cylinder. Then, through the axial movement of the powder distribution cylinder, the self-heating preform leaks to both sides and enters the cylinder, which helps to disperse the self-heating preform in small amounts and evenly.

[0014] As a further optimization of the present invention, the powder distribution cylinder extends through the cylinder body at both ends, and a bushing is provided at the connection point with the cylinder body. The bushing is slidably connected to the cylinder body and rotatably connected to the powder distribution cylinder. The powder distribution cylinder is driven to rotate by a drive unit, and a sliding connection part is provided at the end of the powder distribution cylinder. The sliding connection part is slidably connected to the drive shaft of the drive unit. A ring plate is provided on the circumferential surface of both sides of the powder distribution cylinder. The two ring plates are provided with first one-way teeth in the same direction on the opposite or opposite surfaces. The surface of the cylinder body is provided with second one-way teeth corresponding to the first one-way teeth. When one pair of one-way teeth is engaged by force, the other pair of one-way teeth is in a separated state. This solution causes the powder distribution cylinder to move axially. The drive unit drives the powder distribution cylinder to rotate, and then the first one-way tooth on one side engages with the second one-way tooth, thereby driving the cylinder body to rotate. When powder needs to be distributed, the powder distribution cylinder is decelerated by controlling the powder distribution cylinder to continue rotating forward due to inertia. The back inclined surfaces of the one-way teeth push against each other, causing the powder distribution cylinder to move axially.

[0015] The beneficial effects of this invention are as follows:

[0016] This invention adds a self-heating pre-material to cashmere fibers before spinning. During the spinning process, the cashmere fibers intertwine and lock the self-heating pre-material in place. During the soaking process, the microscopic scales of the cashmere fibers cause the cashmere yarn to pre-felt, effectively stabilizing the self-heating material in the cashmere yarn. This allows the self-heating pre-material to penetrate deep into the cashmere fabric, increasing its bonding strength with the cashmere fabric. Attached Figure Description

[0017] Figure 1 This is a front sectional view of the cylinder assembly in this invention;

[0018] Figure 2 This is a side view of the cylinder assembly in this invention;

[0019] Figure 3 This is a side sectional view of the cylinder assembly in this invention;

[0020] Figure 4 In this invention Figure 3 Enlarged view of the structure of section A in the middle;

[0021] Figure 5 This is a schematic diagram of the meshing of the first unidirectional tooth and the second unidirectional tooth in this invention;

[0022] Figure 6 This is a schematic diagram of the axial movement of the powder distribution cylinder in this invention;

[0023] In the diagram: 1. Feeding mechanism; 2. Cylinder assembly; 21. Cylinder body; 22. Combing needle; 23. Support wheel; 24. Spray nozzle; 25. Annular cavity; 26. Spoke plate; 27. Air inlet pipe; 3. Powder distribution assembly; 31. Powder distribution cylinder; 32. Drive unit; 33. Sliding connection unit; 34. Groove; 35. Through hole; 36. Guide rib; 37. Ring plate; 38. First one-way tooth; 39. Second one-way tooth; 310. Bushing; 311. Feed pipe; 4. Doffer; 5. Cutter; 6. Protective box. Detailed Implementation

[0024] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0025] Example 1

[0026] A method for preparing a self-heating cashmere fabric includes the following steps: cashmere fiber treatment, carding, first doubling, second doubling, spinning, soaking, weaving, ironing, and finished product inspection. The cashmere is carded using a carding mechanism. During the carding process, a powdered self-heating pre-material is added to the cashmere. By weight, the self-heating pre-material includes: 20-40 parts of tungsten metal particles, 10-15 parts of magnetic powder particles, and 30-50 parts of black tourmaline particles.

[0027] By adding a self-heating pre-material to cashmere fibers before spinning, the cashmere fibers intertwine and lock the self-heating pre-material during the spinning process to form yarn. During the soaking process, the microscopic scales of the cashmere fibers cause the cashmere yarn to pre-felt, effectively stabilizing the self-heating material in the cashmere yarn and allowing the self-heating pre-material to penetrate deep into the cashmere fabric, increasing its bonding strength with the cashmere fabric.

[0028] The cashmere fiber processing includes washing and drying, and the particle size of the self-heating pre-fabricated material is 20-400nm.

[0029] Specifically, to ensure the self-heating pre-fabricated material is evenly integrated with the cashmere fibers, it is added during the carding process using the following carding mechanism: Figure 1-6 As shown, the cashmere combing mechanism includes a feeding mechanism 1, a cylinder assembly 2, a doffer 4, and a cutting blade 5. It also includes a powdering assembly 3 for uniformly adding self-heating pre-mixed material to the cashmere. The feeding mechanism 1, cylinder assembly 2, doffer 4, and cutting blade 5 are all common devices in cashmere combing machines. They comb the cashmere by the difference in rotational speed between the components. The cylinder is used to comb the fibers, the doffer 4 receives and condenses the fibers combed by the cylinder, and the cutting blade 5 is used to peel the fibers off the doffer 4. A protective box 6 can also be set up for external protection.

[0030] The cylinder assembly 2 includes a cylinder body 21, combing needles 22 distributed on the outer surface of the cylinder body 21, and nozzles 24. The powder distribution assembly 3 is located inside the cylinder body 21, and a spoke 26 is provided inside the cylinder body 21. Centrifugal force forms an airflow that passes through the nozzles 24, causing the self-heating pre-made material to impact the cashmere on the surface of the cylinder body 21. This solution combines the self-heating pre-made material with the cashmere by spraying it outward from the inside of the cylinder body 21. During the high-speed rotation of the cylinder assembly 2, the centrifugal force helps the powder penetrate the cashmere for full bonding. Furthermore, the cashmere on the surface of the cylinder assembly 2 itself acts as a filter, preventing the self-heating pre-made material from generating a large amount of dust that pollutes the environment during the impact bonding process. In addition, to facilitate the full adsorption of the self-heating pre-made material and cashmere, each combing needle 22 can be made of plastic. During the combing process, it continuously rubs against the cashmere, causing the surface of the cashmere to become charged, thus better adsorbing the self-heating pre-made material.

[0031] The cylinder 21 is divided into several annular cavities 25 by partitions, and several air inlet pipes 27 are provided inside the cylinder 21 for communicating with each annular cavity 25. When a centrifugal airflow is formed, gas is supplied to the annular cavity 25. The annular cavity 25 is set to facilitate the uniform diffusion of the self-heating preform to the outer ring by centrifugal force, and gas is sent to each annular cavity 25 through the air inlet pipes 27.

[0032] The cylinder 21 is supported by at least six support wheels 23. The support wheels 23 are located at both ends of the cylinder 21 and are distributed in a circumferential array along the cylinder 21. The surface of the support wheels 23 is also provided with flanges to prevent the cylinder 21 from moving axially. The arrangement of the support wheels 23 allows the cylinder 21 to be supported by the edges at both ends, leaving space in the shaft for the powder distribution assembly 3.

[0033] The powder distribution assembly 3 includes a powder distribution cylinder 31 disposed inside the cylinder 21 and coinciding with the axis of the cylinder 21. The outer surface of the powder distribution cylinder 31 is radially recessed to form an annular groove 34. A through hole 35 is provided through the side wall of the groove 34. The powder distribution cylinder 31 moves axially to allow the self-heating preform to leave the powder distribution cylinder 31 through the through hole 35 and enter the cylinder 21. Centrifugal force causes the self-heating preform in the powder distribution cylinder 31 to be dispersed at the edge. Then, through the axial movement of the powder distribution cylinder 31, the self-heating preform leaks to both sides into the groove 34 and further into the cylinder 21, which helps to disperse the self-heating preform in small amounts, multiple times, and evenly.

[0034] The powder distribution cylinder 31 extends through the cylinder body 21 at both ends, and a bushing 310 is provided at the connection between the bushing 310 and the cylinder body 21. The bushing 310 is slidably connected to the cylinder body 21 and rotatably connected to the powder distribution cylinder 31. The powder distribution cylinder 31 is driven to rotate by the drive unit 32, and a sliding connection part 33 is provided at the end of the powder distribution cylinder 31. The sliding connection part 33 is slidably connected to the drive shaft of the drive unit 32. A ring plate 37 is provided on the circumferential surface of both sides of the powder distribution cylinder 31. The two ring plates 37 have first one-way teeth 38 in the same direction on the opposite or opposite surfaces. The surface of the cylinder body 21 is provided with... A second one-way tooth 39 corresponding to the first one-way tooth 38 is provided. When one pair of one-way teeth is engaged, the other pair of one-way teeth is in a disengaged state. This scheme causes the powder distribution cylinder 31 to move axially. The driving part 32 drives the powder distribution cylinder 31 to rotate. Then, the first one-way tooth 38 on one side engages with the second one-way tooth 39, thereby driving the cylinder body 21 to rotate. When powder needs to be distributed, the powder distribution cylinder 31 is decelerated by controlling the cylinder body 21 to continue rotating forward due to inertia. The back inclined surfaces of the one-way teeth push against each other, causing the powder distribution cylinder 31 to move axially.

[0035] Specifically, such as Figure 5-6 As shown, Figure 5 Driven by the drive unit 32, the powder cylinder 31 rotates in the direction shown in the figure. The first one-way tooth 39 on the ring plate 37 on its right side meshes with the corresponding second one-way tooth 39, driving the cylinder body 21 to rotate for combing. When powder needs to be applied, the powder cylinder 31 is decelerated (this can be achieved through the friction of an external device). Due to inertia, the cylinder body 21 continues to rotate. The inertia can be increased by adding a flywheel. The rotation direction of the cylinder body 21 relative to the powder cylinder 31 is as follows: Figure 6 As shown, the left side no longer engages, but instead, after rotating at a certain angle, it pushes the powder-dispensing cylinder 31 to slide to the left through the inclined surface. The width of the gap is greater than the length of the one-way tooth. At this time, the first one-way tooth 38 on the left side is aligned with the gap of the second one-way tooth 39. When the powder-dispensing cylinder 31 moves to the left, the first one-way tooth 38 on the left side enters the gap of the second one-way tooth 39. Until the second one-way tooth 39 on the right side aligns with the gap of the first one-way tooth 38, the first one-way tooth 38 on the left side and the inclined surface of the second one-way tooth 39 are in contact. The inclined surface of the second one-way tooth 39 pushes the powder-dispensing cylinder 31 to move to the right. This process is repeated to form a reciprocating axial movement.

[0036] After a brief deceleration, the powder-coating cylinder 31 accelerates again, and once its rotation speed catches up with that of the cylinder 21, it begins to drive the cylinder 21 to accelerate without interrupting the combing process. The powder-coating cylinder 31 still has centrifugal force during deceleration, and the self-heating pre-formed material inside it remains attached to the edge of the powder-coating cylinder 31 and rotates with it. A feed pipe 311 is provided at the end of the powder-coating cylinder 31 away from the drive unit 32. The feed pipe 311 enters from the axis of the powder-coating cylinder 31 and is movably connected to the powder-coating cylinder 31 to accommodate the movement and rotation of the powder-coating cylinder 31. A guide rib 36 is also provided inside the powder-coating cylinder 31 to push the self-heating pre-formed material entering through the feed pipe 311 inward (the pushing process requires slow rotation and cannot generate a large centrifugal force at high speed).

[0037] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A method for preparing a self-heating cashmere fabric, characterized in that: The process includes the following steps: cashmere fiber treatment, carding, first drawing, second drawing, spinning, soaking, weaving, ironing, and finished product inspection. Among these steps, the cashmere is carded by a carding mechanism. During the carding process, a powdered self-heating pre-material is added to the cashmere. By weight, the self-heating pre-material includes: 20-40 parts of tungsten metal particles, 10-15 parts of magnetic powder particles, and 30-50 parts of black tourmaline particles. The particle size of the self-heating preform is 20-400 nm; The combing mechanism includes a feeding mechanism (1), a cylinder assembly (2), a doffer (4), a cutter (5), and a powder assembly (3) for uniformly adding self-heating pre-made material to the cashmere. The cylinder assembly (2) includes a cylinder (21), combing needles (22) distributed on the outer surface of the cylinder (21) and spray holes (24), wherein the powder distribution assembly (3) is located inside the cylinder (21), and a spoke (26) is provided inside the cylinder (21). The cylinder (21) is divided into several annular cavities (25) by partitions, and several air inlet pipes (27) are provided in the cylinder (21) for communicating with each annular cavity (25) and supplementing gas to the annular cavity (25) when a centrifugal airflow is formed; The powder distribution assembly (3) includes a powder distribution cylinder (31) disposed inside the cylinder (21) and coinciding with the axis of the cylinder (21). The outer surface of the powder distribution cylinder (31) is concave inward along the radial direction to form an annular groove (34). A through hole (35) is provided through the side wall of the groove (34). The powder distribution cylinder (31) moves axially to allow the self-heating preform to leave the powder distribution cylinder (31) through the through hole (35) and enter the cylinder (21). The powder-dispensing cylinder (31) has two ends that pass through the cylinder body (21), and a bushing (310) is provided at the connection with the cylinder body (21). The bushing (310) is slidably connected to the cylinder body (21) and rotatably connected to the powder-dispensing cylinder (31). The powder-dispensing cylinder (31) is driven to rotate by the driving part (32), and a sliding connection part (33) is provided at the end of the powder-dispensing cylinder (31). The sliding connection part (33) is slidably connected to the driving shaft of the driving part (32). A ring plate (37) is provided on the circumferential surface on both sides of the powder-dispensing cylinder (31). The two ring plates (37) are provided with first one-way teeth (38) in the same direction on the opposite or opposite surfaces. The surface of the cylinder body (21) is provided with second one-way teeth (39) corresponding to the first one-way teeth (38). When one pair of one-way teeth is engaged by force, the other pair of one-way teeth is in a separated state. A feed pipe (311) is provided at one end of the powder distribution cylinder (31) away from the drive unit (32). The feed pipe (311) enters from the axis of the powder distribution cylinder (31) and is movably connected to the powder distribution cylinder (31) to accommodate the movement and rotation of the powder distribution cylinder (31). During combing, the powder tube (31) rotates under the drive of the drive unit (32), and the first one-way tooth (38) on the ring plate (37) on its right side meshes with the corresponding second one-way tooth (39), driving the tube body (21) to rotate and perform combing. When powder needs to be applied, the powder application cylinder (31) is decelerated and the cylinder (21) continues to rotate forward due to inertia. The back slopes of the first one-way tooth (38) and the second one-way tooth (39) push each other, causing the powder application cylinder (31) to move axially. This allows the self-heating preform to leave the powder application cylinder (31) through the through hole (35) and enter the cylinder (21). The centrifugal force generated during the high-speed rotation of the cylinder assembly (2) forms an airflow that passes through the nozzle (24), causing the self-heating preform to impact the cashmere on the surface of the cylinder (21). After a brief deceleration, the powder tube (31) accelerates again. Once its rotation speed catches up with the tube body (21), it begins to drive the tube body (21) to accelerate, without interrupting the combing process.

2. The method for preparing a self-heating cashmere fabric according to claim 1, characterized in that: The cashmere fiber treatment process includes washing and drying.

3. The method for preparing a self-heating cashmere fabric according to claim 1, characterized in that: The cylinder (21) is supported by at least six support wheels (23), which are located at both ends of the cylinder (21) and are distributed in a circumferential array along the cylinder (21). The surface of the support wheels (23) is also provided with flanges to prevent the cylinder (21) from moving axially.

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