Processing techniques and fabrics made from camel wool and wool fabrics

Abstract

This invention discloses a processing technology for camel wool fabric, comprising the following sequential steps: The raw materials, 70S wool fibers and camel wool fibers, are subjected to the following treatment processes: opening, impurity removal, washing, drying, loose dyeing, further drying, and combing into strips; then, roving and spinning are used to produce wool yarn and camel wool yarn; the wool yarn and camel wool yarn are spun into a greige fabric, which is then processed to produce the camel wool fabric; in the aforementioned combing process, a combing machine is used to comb the 70S wool fibers and camel wool fibers separately to form strips. This invention also discloses a camel wool fabric where the greige fabric is shrunk, washed, treated with auxiliaries, dried and stretched, then steamed, napped, wet-brushed, dried again, steamed repeatedly, and finally ironed, sheared, and finished to produce the finished camel wool fabric. This invention reduces fiber breakage and produces warm, soft, and thick garments.

Description

Technical Field

[0001] This invention relates to a processing technology for camel wool fabric and the fabric made from it. Background Technology

[0002] Wool fibers possess excellent natural properties such as moisture absorption, breathability, warmth, elasticity, and softness, and have a long history of application in the apparel industry. Wool fiber raw materials are precious, and the processing is lengthy and complex, resulting in generally high-priced products, primarily used in high-end suits and uniforms. In recent years, with changing market demands and innovative improvements in production technology, wool products are developing towards functionalization. However, while clothing made from wool fibers offers good warmth, it is not particularly soft and its overall comfort is generally average.

[0003] Camel hair is composed of two types of fibers: fine and coarse. The fine fibers are called camel down, and the coarse fibers are called camel hair. Camel down fibers have a flat, wavy texture and a structure similar to wool, mainly consisting of a scaly layer and a cortex layer. Some down fibers also have a finer medulla layer. The fiber surface has very few scales, which are incompletely covering the fibers, with smooth edges and some serrated edges at the tips. The medulla layer of camel hair is continuous, relatively long and thin, with a width not exceeding 50% of the fiber diameter, and a generally elliptical cross-section. Camel down feels very soft to the touch. Due to its unique material, it appears very soft. Camel down is a clothing fabric made from the downy hair of camels' bellies. Therefore, the main advantages of camel down clothing are its warmth, comfort, and windproof properties. In addition, camel down is a relatively rare material, and its abrasion resistance is very reliable. Xu Dan's paper, "A Discussion on the Production Process of Wool-Polyester Elastic Tweed," published in the September 2021 issue of *Wool Textile Technology* (Vol. 49, No. 9), describes how adding spandex fibers to wool / polyester fabrics significantly improves their elasticity and extensibility, making them crisp, wrinkle-resistant, machine-washable, wrinkle-free, and non-deforming, thus enhancing their wearability. The paper also identifies optimal process parameters and flow for this process. However, camel hair and wool fabrics are indeed rare in current technologies.

[0004] Camel hair fiber and wool fiber share many similar characteristics, resulting in similar processing methods. For example, after opening and before spinning, both are combed into slivers using a carding machine. The earliest method of wool combing was manual: using fingers to pull apart and loosen the wool bundles, removing foreign matter and then mixing the fibers. Initially, dried naphtha was used for combing wool. The naphtha's barbs were mounted on a pair of small rectangular frames with handles. Inspired by this, people developed a small comb-like tool using metal to mimic the naphtha's barbs. These tools were approximately 200 x 125 mm, with small metal teeth embedded in leather mounted on a wooden board. Until the mid-18th century, this was the only tool available for combing. Although rudimentary, the most crucial parts of modern carding machines are based on this principle. Modern carding machines, such as… Figure 1 As shown, the feeding section uses a small conveyor belt 1. Two small rollers 2 at the outlet of the conveyor belt 1 act as clamps. The main roller 3, assisted by a series of small rollers 4, performs conveying and combing functions. At the end, the doffing and separating mechanisms facilitate the separation of wool into strips. Due to the high needle density on the cylinder and the large potential contact area between the fiber and metal, the stress generated by the friction between the metal and the fiber is high, which explains the high fiber breakage rate on the cylinder. Furthermore, to improve production efficiency, the fiber load at the cylinder is increased, resulting in a high fiber breakage rate at the cylinder. How to reduce the fiber breakage rate is one of the important problems that urgently needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects in the prior art and provide a camel wool fabric, which makes clothing warm, soft and thick.

[0006] To achieve the above objectives, the technical solution of the present invention is to design a processing technology for camel wool fabric, comprising the following sequential process steps: the raw materials 70S wool fiber and camel hair fiber are subjected to the following processing steps in sequence: opening, impurity removal, washing, drying, loose dyeing, drying again, combing into strips, and then roving and spinning to make wool yarn and camel hair yarn; the wool yarn and camel hair yarn are spun into a greige fabric, and the greige fabric is processed to make camel wool fabric.

[0007] In the aforementioned carding process, a carding machine is used to card the 70S wool fibers and camel hair fibers separately to form slivers. The densely arranged carding needles on the carding machine can break down the wool fibers into individual slivers, which are then drawn and thinned into yarn.

[0008] A further technical solution is that the carding machine includes a frame. After the fiber raw material is conveyed by a conveyor belt on one side of the frame, it is fed, pre-carded and carded by a feeding roller, a pre-carding licker-in roller, a first cylinder, a second cylinder and a doffer arranged in sequence.

[0009] When the fiber raw material passes through the second cylinder, it is combed and de-haired by a number of working rollers spaced around the second cylinder and a de-hairing roller on one side of each working roller. The surface of the working rollers is covered with elastic carding cloth. The carding machine includes a frame, a fiber raw material conveyor belt on one side of the frame, and a feed roller, a pre-carding licker-in roller, a first cylinder, a second cylinder and a doffer that rotate sequentially along the conveying direction of the fiber raw material on the frame.

[0010] The second cylinder is surrounded by several work rollers at intervals. Each work roller has a stripping roller on one side, and the surface of the work rollers is covered with elastic card cloth. The elastic card cloth includes a base cloth fixedly covered on the surface of the work roller and metal comb needles fixedly connected to the base cloth. Several metal rings are evenly spaced on the base cloth, and through holes are provided in the base cloth between adjacent comb needles. The metal rings are fixedly connected to the work rollers through the through holes in the base cloth. The second cylinder serves as the main cylinder; the metal rings are fixedly connected to the work rollers through the through holes in the base cloth, and the fixed connection can be achieved by adhesive bonding. Additionally, threaded holes corresponding to the through-hole positions can be provided on the surface of the working roller. The metal ring is threadedly fastened to the working roller by bolts passing through it (meaning the metal ring passes through the bolts). This ensures that the metal ring fixes the base fabric, especially restricting the degree of freedom of the base fabric in the direction perpendicular to the comb needle row (meaning the comb needles are arranged in rows, and each row of comb needles is arranged along the generatrix of the working roller). This only allows the comb needles to have the degree of freedom in the direction of rotation (specifically, the degree of freedom of rotation of the comb needle with the connection point between the comb needle and the base fabric as the base point and the aforementioned base point as the hinge point). This satisfies the requirement that the elastic card cloth has a certain degree of freedom when combing wool or camel hair fibers, avoiding the problem of the metal comb needles putting too much load on the fibers and easily causing fiber breakage. In addition, due to the setting of the metal ring, the base fabric has almost no degree of freedom in the direction perpendicular to the comb needle row, avoiding the problem of the fibers being subjected to multi-directional stress or more stress due to the degree of freedom of the comb needles along the generatrix of the working roller during combing, which leads to fiber breakage. This reduces the fiber breakage rate, fiber length reduction, and increased fiber porosity during combing.

[0011] A further technical solution involves the following: when the fiber raw material passes through the first cylinder, the combing and depilation work is completed by a number of working rollers spaced around the first cylinder and a depilating roller on one side of each working roller. The surface of the working rollers is covered with metal card cloth. Because the needle tip density on the cylinder is high, the potential contact area between the fiber and the metal is large. Therefore, the stress generated on the fiber by the friction between the metal and the fiber is high. Using elastic card cloth on the cylinder can reduce the stress on the fiber and decrease fiber breakage.

[0012] Another technical solution is that the carding machine includes a frame. After the fiber raw material is conveyed by the fiber raw material conveyor belt set on one side of the frame, it is fed, pre-carded roller, first cylinder, second cylinder and doffer are arranged in sequence on the frame along the conveying direction of the fiber raw material to complete the feeding, pre-carding and carding work.

[0013] When the fiber raw material passes through the second cylinder, it is combed and de-haired by a number of working rollers spaced around the second cylinder and a de-hairing roller on one side of each working roller. The surface of the working rollers is covered with elastic carding cloth. The carding machine includes a frame, a fiber raw material conveyor belt on one side of the frame, and a feed roller, a pre-carding licker-in roller, a first cylinder, a second cylinder and a doffer that rotate sequentially along the conveying direction of the fiber raw material on the frame.

[0014] The second cylinder is surrounded by several working rollers at intervals. Each working roller has a stripping roller on one side, and the surface of the working roller is covered with elastic card cloth. The elastic card cloth includes a base fabric fixedly covered on the surface of the working roller and metal comb needles fixedly connected to the base fabric. Several metal rings are evenly spaced on the base fabric. The surface of the working roller has screw holes corresponding to the positions of the through holes. The depth of the screw holes is smaller than the roller radius of the working roller. The metal rings are threadedly fastened to the working roller by bolts, and the bolts are adapted to the aforementioned screw holes. By fastening the metal rings to the working roller, the metal rings can clamp the base fabric, avoiding the freedom of the base fabric. Due to the ring-shaped arrangement (i.e., the metal rings), the freedom of the base fabric perpendicular to the comb needle row is particularly restricted. This avoids the problem of fiber breakage caused by the multi-directional stress or more stress on the fibers due to the freedom of the comb needles along the generatrix direction of the working roller during combing. This reduces the fiber breakage rate, fiber length reduction, and increased fiber porosity during combing.

[0015] A further technical solution involves an integrally formed protrusion extending outward from the edge of the metal ring, positioned between adjacent comb needles. Considering the gaps between the comb needles, this protrusion on the outer edge of the metal ring effectively restricts the freedom of movement of the base fabric.

[0016] The present invention also provides a technical solution: a camel wool fabric, which is made using the aforementioned processing technology. 70S wool and camel hair are dyed into yarn and woven into a grey fabric. The grey fabric undergoes shrinking, washing, adding auxiliaries, drying, stretching, steaming, and then enters the napping process. During each napping pass, the changes in the fabric's feel and pile surface must be observed. After napping, the fibers are wet-brushed to align their direction, then dried and steamed repeatedly to give the fabric a more structured feel. Finally, the fabric is ironed and sheared to make it shinier. After passing inspection, the finished product is rolled up and stored.

[0017] The advantages and beneficial effects of this invention are as follows: the carding machine in this process can reduce fiber load, reduce stress on the fibers, and reduce the fiber breakage rate;

[0018] It satisfies the requirement that the elastic card cloth has a certain degree of freedom when combing wool or camel hair fibers, avoiding the problem of excessive load on the fibers caused by metal comb needles, which can easily lead to fiber breakage. In addition, due to the setting of the metal ring, the base fabric has almost no degree of freedom perpendicular to the direction of the comb needle row, avoiding the problem of fiber breakage caused by the comb needles having a degree of freedom along the generatrix of the working roller during combing due to multi-directional stress or more stress. This reduces the fiber breakage rate, fiber length reduction, and increased hair pile during combing.

[0019] By fastening the metal ring to the working roller, the metal ring can clamp the base fabric, preventing the base fabric from having any freedom. Due to the ring-shaped design (i.e., the metal ring), the freedom of the base fabric perpendicular to the comb needle row is particularly restricted. This avoids the problem of fiber breakage caused by the comb needles having a degree of freedom along the generatrix of the working roller during combing, which would otherwise cause the fibers to be subjected to multi-directional stress or more stress. This reduces the fiber breakage rate, fiber length reduction, and increased fiber tufting during combing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a wool combing machine in the prior art;

[0021] Figure 2 This is a schematic diagram of a carding machine in the processing technology of camel wool fabric of the present invention;

[0022] Figure 3 yes Figure 2 Top view;

[0023] Figure 4 yes Figure 2 Cross-sectional view;

[0024] Figure 5 yes Figure 4 Enlarged schematic diagram of the working roller section;

[0025] Figure 6 yes Figure 5 A schematic diagram of a medium-elasticity cardioid fabric;

[0026] Figure 7 yes Figure 4 A partial schematic diagram of the top view of the intermediate working roll;

[0027] Figure 8 This is a schematic diagram of the metal comb needles in Embodiment 2 of the present invention;

[0028] Figure 9 yes Figure 8 Side view;

[0029] Figure 10 yes Figure 9 Another schematic diagram of its working state.

[0030] In the diagram: 1. Conveyor belt; 2. Small roller; 3. Main roller; 4. Small roller; 5. Frame; 6. Feed roller; 7. Zipper roller; 8. First cylinder; 9. Second cylinder; 10. Doffer; 11. Work roller; 12. Stripping roller; 13. Elastic card cloth; 14. Base fabric; 15. Metal comb needle; 16. Metal ring; 17. Protrusion; 18. Steel needle; 19. Needle root; 20. Needle tip; 21. Needle knee; 22. Limiting block. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] Example 1:

[0033] like Figures 1 to 7 As shown (for ease of illustration), Figure 1 The first silin, second silin, and dof are not shown. Figure 7 (Only one protrusion on the metal ring is shown, and only one row of comb needles perpendicular to the working roller generatrix is ​​shown.) This invention is a camel wool fabric made of 70S wool and camel hair, which are dyed into yarn and woven into a greige fabric. The greige fabric is then shrunk, washed, and treated with auxiliaries before being dried and stretched. After steaming, it enters the napping process. During each napping process, the changes in the fabric's hand feel and the nap must be observed. After napping, the fabric is wet-brushed to align the direction of the hairs. After drying, it is steamed repeatedly to give the fabric a more structured feel. Finally, the fabric is ironed and trimmed to make it shinier. After the finished product passes inspection, it is rolled up and stored in the warehouse.

[0034] A processing technology for camel wool fabric includes the following sequential steps: The raw materials 70S wool fibers and camel hair fibers are subjected to the following processing steps: opening, impurity removal, washing, drying, loose dyeing, further drying, and combing into strips; then, roving and spinning are used to produce wool yarn and camel hair yarn; the wool yarn and camel hair yarn are spun into a greige fabric, which is then processed to produce camel wool fabric; in the aforementioned combing process, a combing machine is used to comb the 70S wool fibers and camel hair fibers separately to form strips.

[0035] The carding machine includes a frame 5. A fiber material conveyor belt 1 is located on one side of the frame 5. Along the conveying direction of the fiber material, a feed roller 6, a pre-carding licker-in roller 7, a first cylinder 8, a second cylinder 9, and a doffer 10 are sequentially arranged on the frame 5. Several work rollers 11 are spaced around the second cylinder 9. Each work roller 11 has a stripping roller 12 on one side. The surface of the work roller 11 is covered with elastic card cloth 13. The elastic card cloth 13 includes a base cloth 14 fixedly covering the surface of the work roller 11 and metal carding needles 15 fixedly connected to the base cloth 14. Several metal rings 16 are equidistantly arranged on the base cloth 14. Through holes are provided on the base cloth 14 between adjacent carding needles, and the metal rings 16 are fixedly connected to the work rollers 11 through the through holes in the base cloth 14. Several work rollers 11 are spaced around the first cylinder 8. Each work roller 11 has a stripping roller 12 on one side, and the surface of the work roller 11 is covered with metal card cloth. The edge of the metal ring 16 extends outward and is integrally provided with a protrusion 17, which is located between adjacent comb needles.

[0036] The working principle is as follows:

[0037] Wool or camel hair is conveyed by a conveyor belt to the feed rollers and enters the carding machine. After pre-carding by the licker-in rollers, it reaches the first cylinder for a second carding. Then, it passes through the transition rollers to the second cylinder for the formal carding process. The card cloth on the working roller at the second cylinder is elastic card cloth, and because the metal ring is tightly connected to the working roller, the metal ring can clamp the base fabric, avoiding the freedom of the base fabric. Due to the ring-shaped setting (i.e., the metal ring), the freedom of the base fabric perpendicular to the direction of the carding needles is particularly restricted. This avoids the problem of fiber breakage caused by the multi-directional stress or more stress on the fibers due to the freedom of the carding needles along the generatrix of the working roller during carding. This reduces the fiber breakage rate, fiber length reduction, and increased wool particles during carding.

[0038] Example 2:

[0039] The difference from Embodiment 1 is that, as Figures 8 to 10As shown, the carding pins on the flexible card clothing include a pin root 19 and a steel pin 18 integrally formed with the pin root 19. The steel pin 18 and the pin root 19 form a "冂" shape. A tip segment 20 is hinged at the end of the steel pin 18 away from the pin root 19. The connection between the steel pin 18 and the tip segment 20 is the pin knee 21. A protrusion is integrally provided on the tip segment 20, and a limiting block 22 matching the protrusion is provided on the steel pin 18 (for when the tip segment 20 encounters resistance due to contacting wool or camel hair at the beginning of carding, it rotates along the hinge. When it rotates until the protrusion abuts against the limiting block 22, the tip segment 20 continues to rotate with the rotation of the working roller 11 to achieve further carding work. In this way, even in the formal carding process at the cylinder, pre-carding is still adopted first, that is, the carding pins are gently inserted into the wool fibers or camel hair fibers, and then formal carding is carried out, further reducing the load on the fibers during the carding process to reduce the breaking ratio of the fibers).

[0040] The working principle is as follows:

[0041] At the beginning of carding (that is, Figure 9 in the state), the tip segment 20 encounters resistance due to contacting wool or camel hair, so it rotates along the hinge. When it rotates until the protrusion abuts against the limiting block 22 (that is, Figure 10 in the state), the tip segment 20 continues to rotate with the rotation of the working roller 11 to achieve further carding work. In this way, even in the formal carding process at the cylinder, pre-carding is still adopted first, that is, the carding pins are gently inserted into the wool fibers or camel hair fibers, and then formal carding is carried out, further reducing the load on the fibers during the carding process to reduce the breaking ratio of the fibers.

[0042] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A process for processing camel cashmere suiting fabric, characterized in that, It includes the following technological steps carried out in sequence: the following processing procedures carried out on the raw material 70S wool fiber and camel hair fiber respectively: opening, impurity removal, cleaning, then drying and loose wool dyeing, and then drying and carding into strips, and then making wool yarn and camel hair yarn through roving and spinning; weaving the wool yarn and camel hair yarn into a grey cloth, and making the camel hair woolen fabric after processing the grey cloth; In the above carding process, a carding machine is used to card the 70S wool fiber and camel hair fiber respectively to form strips; The carding machine includes a frame. After the fiber raw material is conveyed by the conveyor belt on one side of the frame, the feeding, pre-carding and carding work is completed through the feeding roller, pre-carding licker-in, first cylinder, second cylinder and doffer arranged in sequence; When the fiber raw material passes through the first cylinder, the carding and stripping work is completed by a number of working rollers arranged at intervals around the first cylinder and a stripping roller arranged on one side of each working roller. The surface of the working roller is coated with metallic card clothing; When the fiber raw material passes through the second cylinder, the carding and stripping work is completed by a number of working rollers arranged at intervals around the second cylinder and a stripping roller arranged on one side of each working roller. The surface of the working roller is coated with elastic card clothing; The elastic card clothing includes a base cloth fixedly coated on the surface of the working roller and metal comb needles fixedly connected to the base cloth. A number of metal rings are equidistantly arranged on the base cloth, through holes are arranged on the base cloth between adjacent comb needles, screw holes corresponding to the positions of the through holes are arranged on the surface of the working roller, the depth of the screw holes is less than the roller radius of the working roller, and the metal rings are threadedly fastened to the working roller through bolts, and the bolts are adapted to the screw holes; The comb needle includes a needle root and a steel needle integrally formed with the needle root. The steel needle and the needle root form a "冂" shape. The end of the steel needle far from the needle root is hinged with a needle tip section. The connection between the steel needle and the needle tip section is the needle knee. A protrusion is integrally arranged on the needle tip section, and a limiting block matching the protrusion is arranged on the steel needle; during carding, the needle tip section is subjected to resistance and rotates along the hinge. When the rotation reaches the point where the protrusion abuts against the limiting block, the needle tip section continues to rotate with the rotation of the working roller to achieve further carding work.

2. A camel cloth fabric, characterized in that, The fabric is made by the processing technology as described in Claim 1.

Images