Preparation method of anti-static graphene cashmere fabric and fabric

Abstract

The preparation method comprises the steps of cashmere raw material treatment, cashmere carding, slivering, spinning, weaving, ironing and finished product inspection, and cashmere raw materials are treated through the following steps of cleaning, first-time drying, graphene dipping bath and second-time drying. According to the preparation method, during a covalent cross-linking reaction, a stirrer is adopted for soft stirring, so that cashmere fibers cannot be extruded and felted in the stirring process, in order to enable the interiors of the cashmere fibers to be fully reacted after the cashmere fibers are agglomerated, cashmere clusters are continuously split and overturned, the internal cashmere fibers are continuously overturned to the exterior, and then stirring is conducted, so that the covalent cross-linking effect is achieved. The reaction effect is improved along with scouring of the stirred solution so as to be better combined with graphene, cashmere fibers are not extruded, scales on the surfaces of the cashmere fibers cannot be highly wound, and the subsequent cashmere combing process is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of cashmere fabrics, and in particular relates to a preparation method of an antistatic graphene cashmere fabric and the fabric. Background Art

[0002] Cashmere is a high-end fabric material that is soft, comfortable, warm, light and breathable. The scaly structure on the surface of cashmere fibers brings many advantages, but it also causes the disadvantage of easy felt shrinkage and deformation. Graphene can give the fabric good antibacterial, antistatic, heat-generating and other excellent properties. Combining it with cashmere to make fabrics has certain development prospects.

[0003] Application No. 201910903121.X discloses a method for manufacturing a graphene wool fabric and the obtained fabric, wherein the aldehyde-modified graphene reacts with the amino group of the wool fiber in an alcohol solution to rapidly undergo covalent cross-linking, thereby causing the graphene to be deposited and grafted on the surface of the wool fiber. When the wool fiber is processed, the wool fiber and the graphene are combined by repeated padding and ultrasonic oscillation. Since cashmere fibers are finer and softer than wool fibers, this method can ensure that the cashmere deep inside is combined with the graphene, but the repeated padding method easily causes the cashmere fibers to be directly felted, which is not convenient for subsequent combing processing. Summary of the invention

[0004] The purpose of the present invention is to provide a method for preparing an antistatic graphene cashmere fabric and a fabric in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A method for preparing an antistatic graphene cashmere fabric comprises cashmere fiber processing, carding, strip making, spinning, weaving, ironing and finished product inspection, wherein the cashmere fiber is processed by the following steps: washing, first drying, graphene immersion and second drying, wherein the graphene immersion step comprises: immersing the cashmere fiber in an agitator containing an ethanol solution of aldehyde-based graphene for agitation, and continuously splitting and flipping the entangled clumps of the cashmere fiber during the agitation.

[0007] As a further optimization scheme of the present invention, the concentration of aldehyde-modified graphene in the ethanol solution is 0.05-0.5% by weight, the time is 1-10 hours, and the liquid ratio is 1:20-30.

[0008] As a further optimization scheme of the present invention, the agitator includes an agitator shell, a shaft cylinder rotatably arranged in the agitator shell, and an inner cylinder rotatably arranged in the shaft cylinder, the outer surface of the shaft cylinder is provided with a plurality of main stirring needles, the surface of the inner cylinder is provided with a telescopic auxiliary stirring needle, the surface of the shaft cylinder is provided with a transverse sliding groove, the auxiliary stirring needle corresponds to the main stirring needle one by one, and is used to extend in parallel with the main stirring needle and then slide along the sliding groove to split the clumps entangled by the main stirring needle. In this scheme, a telescopic auxiliary stirring needle is arranged in the agitator, so that the auxiliary stirring needle can be extended in parallel with the main stirring needle, inserted into the cashmere ball on the surface of the main stirring needle, and then separated from the main stirring needle to split the cashmere ball, and then the auxiliary stirring needle can be retracted to release the split cashmere ball, and the released cashmere ball will flip in the solution and finally be driven forward by the subsequent main stirring needle.

[0009] As a further optimization scheme of the present invention, the ends of the auxiliary stirring needles in each vertical column entering the inner cylinder are commonly connected to a vertical rod, the inner cylinder is rotatably provided with a central axis, and the surface of the central axis is provided with at least two telescopic driving disks, wherein the surface of the telescopic driving disk is provided with a guide groove, and the vertical rod passes through the guide groove, and is used to pull the vertical rod toward the center of the circle through the guide groove when the telescopic driving disk rotates, so as to extend and retract the auxiliary stirring needles. Since there are multiple auxiliary stirring needles, in order to facilitate the control of the extension and retraction of each auxiliary stirring needle, this scheme connects the auxiliary stirring needles in the same vertical column through the same vertical rod, and controls the distribution radius of the vertical rod through the telescopic driving disk to control the extension and retraction of the auxiliary stirring needles.

[0010] As a further optimization scheme of the present invention, the shaft cylinder is detachably connected to the agitator housing through a mechanical arm assembly. The mechanical arm assembly has the functions of lifting and rotating, and is rotatably connected to the shaft cylinder through a bearing. After the cashmere processing is completed, most of the cashmere fibers are placed on the main agitation needle. In order to make the cashmere fibers leave the agitator, the mechanical arm assembly is used to conveniently lift the shaft cylinder after the processing is completed. The cashmere can be thrown out and separated by high rotation, and other receiving devices can be provided in addition.

[0011] As a further optimization scheme of the present invention, a motor is provided on the robotic arm assembly for driving the inner cylinder to rotate, and a damper is also provided for limiting the relative rotation of the central axis and the inner cylinder, wherein guide rods are provided at both ends of the vertical rod along the direction of the auxiliary stirring needle, the guide rods are used to make the inner cylinder drive the shaft cylinder to rotate, the guide rods are kept extended outward by elastic parts, and a one-way block is provided on the surface of the shaft cylinder. After the guide rod is extended, it can only slide along the slide groove through the one-way block in one direction, and after the guide rod is completely retracted with the vertical rod, the guide rod is no longer restricted by the one-way block. Since the auxiliary stirring needle in this scheme needs to repeat the steps of extending, rotating away, retracting, rotating back, and repeatedly extending, it is necessary to control the rotation of the shaft cylinder, inner cylinder, and central axis respectively. Therefore, setting this scheme can simplify the driving process.

[0012] The present invention also provides an anti-static graphene cashmere fabric, which is obtained by adopting the above-mentioned preparation method.

[0013] The beneficial effects of the present invention are:

[0014] In the present invention, during the covalent cross-linking reaction, a stirrer is used for gentle stirring so that the cashmere fibers will not be squeezed and felted during the stirring process. In order to allow the cashmere fibers to fully react inside after agglomerating, the present invention continuously splits and flips the cashmere balls so that the cashmere fibers inside are continuously flipped to the outside and stirred. The reaction effect is improved as the stirred solution is flushed, so that the cashmere fibers can be better combined with graphene. In addition, the cashmere fibers have not been squeezed, so the scales on their surface will not be highly entangled, which is convenient for the subsequent carding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 The present invention Figure 1 Middle AA view;

[0017] Figure 3 The present invention Figure 2 Middle BB view;

[0018] Figure 4 The present invention Figure 1 A magnified view of the structure of part C in the middle;

[0019] Figure 5 The present invention Figure 2 The structure of part D is enlarged;

[0020] Figure 6 The present invention Figure 3 Middle EE view;

[0021] In the figure: 1. agitator housing; 21. shaft cylinder; 22. main agitating needle; 23. slide groove; 24. one-way block; 25. return spring; 31. inner cylinder; 32. auxiliary agitating needle; 33. vertical rod; 34. telescopic driving disk; 35. guide groove; 36. guide rod; 37. elastic member; 38. middle axis; 39. motor; 310. damper; 4. mechanical arm assembly. DETAILED DESCRIPTION

[0022] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Example 1

[0024] like Figure 1-6 As shown, a method for preparing an anti-static graphene cashmere fabric includes cashmere fiber processing, carding, strip making, spinning, weaving, ironing, and finished product inspection. The cashmere fiber is processed by the following steps: cleaning, first drying, graphene immersion, and second drying. The graphene immersion process is as follows: immersing the cashmere fiber in an agitator containing an ethanol solution of aldehyde-based graphene and agitating it, and during the agitation process, the entangled clumps of the cashmere fiber are continuously split and flipped.

[0025] For cashmere fibers that are thinner than wool fibers, this solution uses a stirrer to gently stir the cashmere fibers during the covalent cross-linking reaction so that the cashmere fibers will not be squeezed and felted during the stirring process. In order to allow the cashmere fibers to fully react inside after agglomerating, this solution continuously splits and flips the cashmere clusters so that the cashmere fibers inside are continuously turned to the outside and stirred. The reaction effect is improved as the stirred solution is flushed, so that it can better combine with graphene. In addition, the cashmere fibers have not been squeezed, and the scales on their surface will not be highly entangled, which is convenient for the subsequent carding process.

[0026] In terms of weight percentage, the concentration of aldehyde-modified graphene in the ethanol solution is 0.05%, the time is 10 hours, and the liquid ratio is 1:30.

[0027] The agitator comprises an agitator housing 1, a shaft cylinder 21 rotatably arranged in the agitator housing 1, and an inner cylinder 31 rotatably arranged in the shaft cylinder 21. The outer surface of the shaft cylinder 21 is provided with a plurality of main stirring needles 22, and the surface of the inner cylinder 31 is provided with a telescopic auxiliary stirring needle 32. The surface of the shaft cylinder 21 is provided with a transverse slide groove 23. The auxiliary stirring needle 32 corresponds to the main stirring needle 22 one by one, and is used to extend in parallel with the main stirring needle 22 and then slide along the slide groove 23 to twist the main stirring needle 22. In order to split the cashmere clumps, the present invention provides a retractable auxiliary stirring needle 32 in the agitator, so that the auxiliary stirring needle 32 can be extended parallel to the main stirring needle 22 and inserted into the cashmere ball on the surface of the main stirring needle 22, and then the auxiliary stirring needle 32 rotates to separate from the main stirring needle 22 to split the cashmere ball. Subsequently, the auxiliary stirring needle 22 can be retracted to release the split cashmere ball, which will turn over in the solution and will be finally driven forward by the subsequent main stirring needle 22.

[0028] The ends of each vertical column of auxiliary stirring needles 32 entering the inner cylinder 31 are commonly connected to a vertical rod 33, and the inner cylinder 31 is rotatably provided with a central axis 38, and at least two telescopic driving disks 34 are provided on the surface of the central axis 38, wherein a guide groove 35 is opened on the surface of the telescopic driving disk 34, and the vertical rod 33 passes through the guide groove 35, which is used to pull the vertical rod 33 toward the center of the circle through the guide groove 35 when the telescopic driving disk 34 rotates, so as to extend and retract the auxiliary stirring needles 32. Since there are multiple auxiliary stirring needles 32, in order to facilitate the control of the extension and retraction of each auxiliary stirring needle 32, this scheme connects the auxiliary stirring needles 32 in the same vertical column through the same vertical rod 33, and controls the distribution radius of the vertical rod 33 through the telescopic driving disk 34 to control the extension and retraction of the auxiliary stirring needles 32.

[0029] The shaft cylinder 21 is detachably connected to the agitator housing 1 through a mechanical arm assembly 4. The mechanical arm assembly 4 has the functions of lifting and rotating, and is rotatably connected to the shaft cylinder 21 through a bearing. After the cashmere processing is completed, most of the cashmere fibers are placed on the main stirring needle 22 or the auxiliary stirring needle 32. In order to make the cashmere fibers leave the agitator, the mechanical arm assembly 4 is used to conveniently lift the shaft cylinder 21 after the processing is completed. The cashmere can be thrown out and separated by high rotation, and other receiving devices can be provided separately.

[0030] The mechanical arm assembly 4 is provided with a motor 39 for driving the inner cylinder 31 to rotate, and a damper 310 is also provided for limiting the relative rotation of the middle axis 38 and the inner cylinder 31, wherein guide rods 36 are provided at both ends of the vertical rod 33 along the direction of the secondary stirring needle 32, and the guide rods 36 are used to make the inner cylinder 31 drive the shaft cylinder 21 to rotate, and the guide rods 36 are kept extending outward by elastic members 37, and the elastic members 37 can be tension springs, and a one-way block 24 is provided on the surface of the shaft cylinder 21, and after the guide rod 36 is extended, it can only slide along the slide groove 23 and pass through the one-way block 24 in one direction, and after the guide rod 36 is completely retracted with the vertical rod 33, the guide rod 36 is no longer restricted by the one-way block 24, and the one-way block 34 is as shown in FIG. Figure 6 As shown, it is trapezoidal in shape and is kept extended by the return spring 25. When the guide rod 36 moves from the right to the left, the guide rod 36 is stuck at the leftmost side of the slide groove 23. At this time, the rotation of the inner cylinder 31 can still continue to drive the shaft cylinder 21 to rotate through the guide rod 36 acting on the one-way block 24.

[0031] Since the auxiliary stirring needle 32 in this solution needs to continuously repeat the following steps: extending together with the main stirring needle 22, rotating away from the main stirring needle 22, retracting to the inner cylinder 31 to release the cashmere ball, rotating back to be close to the main stirring needle 22, and extending again, it is necessary to control the rotation of the shaft cylinder 21, the inner cylinder 31, and the middle axis 38 respectively. Therefore, setting up this solution can simplify the driving process.

[0032] Specifically, the motor 39 drives the inner cylinder 31 to rotate. Figure 3As shown, the inner cylinder 31 rotates counterclockwise and contacts the end of the slide groove 23 through the guide rod 36, thus driving the shaft cylinder 21 to rotate. At this time, the inner cylinder 31 rotates synchronously with the shaft cylinder 21, and the guide rod 36 and the auxiliary stirring needle 32 extend out under the action of the elastic member 37;

[0033] At this time, the motor 39 controls the inner cylinder 31 to stop suddenly, and the shaft cylinder 21 continues to rotate forward due to inertia, so that the guide rod 36 and the auxiliary stirring needle 32 slide along the slide groove 23 on the surface of the shaft cylinder 21, and the auxiliary stirring needle 32 rotates away from the main stirring needle 22, which has the effect of disassembling the cashmere ball. The guide rod 36 moves to the end of the slide groove 23 and is stuck by the one-way block 24. At this time, the motor 39 continues to drive the inner cylinder 31 to rotate;

[0034] The inner cylinder 31 continues to drive the shaft cylinder 21 to rotate through the guide rod 36 and the one-way block 24, and then the damper 310 is activated to make the central axis 38 have a rotation resistance. The rotation resistance makes the rotation speed of the telescopic drive disk 34 lower than that of the inner cylinder 31, and the vertical rod 33 shrinks inward, driving the guide rod 36 and the auxiliary stirring needle 32 to retract, so that the cashmere balls on the surface of the auxiliary stirring needle 32 are free again, and are turned over during the stirring process and collected by the subsequent main stirring needle 22;

[0035] After the guide rod 36 is fully retracted, the one-way block 24 cannot clamp the guide rod 36, and the rotational force of the inner cylinder 31 cannot be transmitted to the shaft cylinder 21. Then the inner cylinder 31 continues to rotate counterclockwise compared with the shaft cylinder 21 until the guide rod 36 reaches the end of the slide groove 23, and continues to drive the shaft cylinder 21 to rotate. This process causes the auxiliary stirring needle 32 to rotate back and align with the main stirring needle 22.

[0036] The damper 310 is closed, and the guide rod 36 is extended under the action of the elastic member 37. At the same time, the auxiliary stirring needle 32 is extended from the side of the main stirring needle 22 in a closed state again, and inserted into the cashmere ball of the main stirring needle 22 to facilitate the separation of the next cycle.

[0037] The present invention also provides an anti-static graphene cashmere fabric, which is obtained by adopting the above-mentioned preparation method.

[0038] Example 2

[0039] Different from Example 1, in this example, the concentration of aldehyde-modified graphene in the ethanol solution is 0.5% by weight, the time is 1 hour, and the liquid ratio is 1:20.

[0040] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A method for preparing an antistatic graphene cashmere fabric, characterized in that: The process includes cashmere fiber processing, carding, strip making, spinning, weaving, ironing, and finished product inspection. The cashmere fiber is processed by the following steps: cleaning, first drying, graphene immersion, and second drying. The graphene immersion process is as follows: immersing the cashmere fiber in an agitator containing an ethanol solution of aldehyde-based graphene and stirring the cashmere fiber, and continuously splitting and turning the entangled clumps of cashmere fiber during the stirring process.

2. The method for preparing an antistatic graphene cashmere fabric according to claim 1, characterized in that: In terms of weight percentage, the concentration of aldehyde-modified graphene in the ethanol solution is 0.05-0.5%, the time is 1-10 hours, and the liquid ratio is 1:20-30.

3. The method for preparing an antistatic graphene cashmere fabric according to claim 1, characterized in that: The agitator comprises an agitator shell (1), a shaft cylinder (21) rotatably arranged in the agitator shell (1), and an inner cylinder (31) rotatably arranged in the shaft cylinder (21); a plurality of main agitating needles (22) are arranged on the outer surface of the shaft cylinder (21); a telescopic auxiliary agitating needle (32) is arranged on the surface of the inner cylinder (31); a transverse sliding groove (23) is opened on the surface of the shaft cylinder (21); the auxiliary agitating needle (32) corresponds to the main agitating needle (22) one by one, and is used to extend in parallel with the main agitating needle (22) and then slide along the sliding groove (23) to separate the lumps entangled by the main agitating needle (22).

4. The method for preparing an antistatic graphene cashmere fabric according to claim 3, characterized in that: The ends of the auxiliary stirring needles (32) in each vertical row entering the inner cylinder (31) are commonly connected to a vertical rod (33); the inner cylinder (31) is rotatably provided with a central axis (38); the surface of the central axis (38) is provided with at least two telescopic drive disks (34); wherein the surface of the telescopic drive disk (34) is provided with a guide groove (35); the vertical rod (33) penetrates the guide groove (35) and is used to pull the vertical rod (33) toward the center of the circle through the guide groove (35) when the telescopic drive disk (34) rotates, so as to extend and retract the auxiliary stirring needles (32).

5. The method for preparing an antistatic graphene cashmere fabric according to claim 4, characterized in that: The shaft cylinder (21) is detachably connected to the agitator housing (1) via a mechanical arm assembly (4); the mechanical arm assembly (4) has lifting and rotating functions and is rotatably connected to the shaft cylinder (21) via a bearing.

6. The method for preparing an antistatic graphene cashmere fabric according to claim 5, characterized in that: The mechanical arm assembly (4) is provided with a motor (39) for driving the inner cylinder (31) to rotate, and is also provided with a damper (310) for limiting the relative rotation of the middle axis (38) and the inner cylinder (31), wherein guide rods (36) are provided at both ends of the vertical rod (33) along the direction of the auxiliary stirring needle (32), and the guide rods (36) are used to make the inner cylinder (31) drive the shaft cylinder (21) to rotate, and the guide rods (36) are kept extending outward by elastic members (37), and a one-way block (24) is provided on the surface of the shaft cylinder (21), and after the guide rod (36) is extended, it can slide along the slide groove (23) and can only pass through the one-way block (24) in one direction, and after the guide rod (36) is completely retracted with the vertical rod (33), the guide rod (36) is no longer restricted by the one-way block (24). 7.An antistatic graphene cashmere fabric, characterized in that: The method is obtained by the preparation method described in any one of claims 1 to 6.

Images