CN-122013423-A - Preparation method of camel hair knitted fabric based on continuous process path

CN122013423ACN 122013423 ACN122013423 ACN 122013423ACN-122013423-A

Abstract

The invention relates to the technical field of camel hair knitted fabric preparation, in particular to a camel hair knitted fabric preparation method based on a continuous process path, which is used for determining initial parameters of carding and drawing based on fiber density and uniformity of mixed fiber flow; the method comprises the steps of detecting the quality of carded raw yarns, calculating the fiber density change rate and the fiber uniformity change rate of the carded raw yarns relative to mixed fiber flow, adjusting initial draft multiple, intelligently determining initial parameters of twisting and knitting based on yarn evenness change coefficients, detecting the yarn evenness change coefficients and yarns, calculating the first change coefficient change rate and the second change coefficient change rate, adjusting initial knitting speed, determining initial drying temperature in a drying stage based on fabric shrinkage before shaping, and calculating shrinkage change rate through fabric shrinkage before shaping and fabric shrinkage after shaping. The preparation method of the camel hair knitted fabric can improve production efficiency and product quality stability.

Inventors

ZHENG JINHUA
ZHENG QI

Assignees

张家港牧羊人服饰有限公司

Dates

Publication Date: 20260512
Application Date: 20260415

Claims (10)

1. The preparation method of the camel hair knitted fabric based on the continuous process path is characterized by comprising the following steps of: mixing the pretreated camel hair fibers with auxiliary fibers to obtain mixed fiber streams, detecting the mixed fiber streams to determine corresponding mixed fiber densities and mixed fiber uniformity, and determining carding speed of a carding machine and initial draft multiple of a drawing frame based on the mixed fiber densities and the mixed fiber uniformity; Processing the mixed fiber stream based on the carding speed to obtain carded raw fibers, detecting the carded raw fibers to determine corresponding raw fiber density and raw fiber uniformity, and adjusting the initial draft based on the raw fiber density and the mixed fiber density and the comparison of raw fiber uniformity and mixed fiber uniformity; Processing the carded raw sliver based on the adjusted draft multiple to obtain a drawn sliver, detecting the drawn sliver to determine a corresponding sliver uniformity variation coefficient, and determining a twisting rotational speed of a twisting machine and an initial knitting speed of a knitting machine based on the sliver uniformity variation coefficient; processing the drawn yarn to obtain yarn based on the yarn twisting rotational speed, detecting the yarn to determine a corresponding yarn uniformity variation coefficient, and adjusting the initial weaving speed based on a comparison of the yarn uniformity variation coefficient and the yarn uniformity variation coefficient; processing the yarns based on the adjusted weaving speed to obtain a fabric, detecting the fabric to determine a corresponding fabric shrinkage, and determining a shaping temperature in a shaping process and an initial drying temperature in a drying process based on the fabric shrinkage; Treating the fabric based on the shaping temperature, detecting the treated fabric to determine the corresponding fabric shrinkage, and adjusting the initial drying temperature based on the change condition of the fabric shrinkage; and treating the shaped fabric based on the regulated drying temperature to obtain the camel hair knitted fabric.
2. The method for preparing a camel hair knitted fabric based on a continuous process route according to claim 1, wherein the process of adjusting the initial draft ratio comprises: calculating the fiber density ratio of the carded sliver to the mixed fiber stream as a fiber density change rate; calculating the fiber uniformity ratio of the carded raw strips and the mixed fiber stream as the fiber uniformity change rate; and based on the comparison result of the fiber density change rate and the density change threshold and the comparison result of the fiber uniformity change rate and the uniformity change threshold, the initial draft multiple is adjusted cooperatively.
3. The method for preparing a camel hair knitted fabric based on a continuous process route according to claim 2, wherein the process of cooperatively adjusting the initial draft multiple comprises: If the fiber density change rate is smaller than the lower limit value in the density change threshold value and the fiber uniformity change rate is smaller than the lower limit value in the uniformity change threshold value, determining to generate a first adjusting instruction to reduce the initial draft multiple; And if the fiber density change rate is greater than the upper limit value in the density change threshold value and the fiber uniformity change rate is greater than the upper limit value in the uniformity change threshold value, determining to generate a second adjusting instruction to increase the initial draft.
4. The method for producing a camel hair knitted fabric based on a continuous process route according to claim 3, wherein the process of cooperatively adjusting the initial draft multiple further comprises: If the fiber density change rate is equal to the density change threshold and the fiber uniformity change rate is less than a lower limit value in the uniformity change threshold, or the fiber uniformity change rate is equal to the uniformity change threshold and the fiber density change rate is less than a lower limit value in the density change threshold, determining to generate a third adjustment instruction to reduce the initial draft multiple and reduce the amplitude by less than the first adjustment instruction; And if the fiber density change rate is equal to the density change threshold and the fiber uniformity change rate is greater than an upper limit value in the uniformity change threshold, or the fiber uniformity change rate is equal to the uniformity change threshold and the fiber density change rate is greater than an upper limit value in the density change threshold, determining to generate a fourth adjustment instruction to increase the initial draft multiple and the increase amplitude is smaller than the second adjustment instruction.
5. The method for producing a camel hair knitted fabric based on a continuous process route according to claim 2, wherein the process of adjusting the initial knitting speed comprises: Calculating the ratio of the yarn uniformity variation coefficient to a preset yarn uniformity variation coefficient to be used as a first variation coefficient variation rate; Calculating the ratio of the yarn uniformity variation coefficient to the yarn evenness variation coefficient as a second variation coefficient variation rate; And based on the comparison result of the first variation coefficient change rate and the first variation coefficient change threshold value and the comparison result of the second variation coefficient change rate and the second variation coefficient change threshold value, the initial weaving speed is adjusted cooperatively.
6. The method for preparing a camel hair knitted fabric based on a continuous process route according to claim 5, wherein the process of cooperatively adjusting the initial knitting speed further comprises: If the first variation coefficient change rate is smaller than the first variation coefficient change threshold value and the second variation coefficient change rate is smaller than the lower limit value in the second variation coefficient change threshold value, determining to generate a fifth adjusting instruction to increase the initial weaving speed; And if the first variation coefficient change rate is greater than the first variation coefficient change threshold value and the second variation coefficient change rate is greater than the upper limit value in the second variation coefficient change threshold value, determining to generate a sixth adjustment instruction to reduce the initial weaving speed.
7. The method for preparing a camel hair knitted fabric based on a continuous process route according to claim 6, wherein the process of cooperatively adjusting the initial knitting speed further comprises: If the first coefficient of variation change rate is greater than the first coefficient of variation change threshold and the second coefficient of variation change rate is less than a lower limit in the second coefficient of variation change threshold, determining to generate a seventh adjustment instruction to reduce the initial braiding speed and reduce the amplitude less than the sixth adjustment instruction; And if the first variation coefficient change rate is smaller than the first variation coefficient change threshold value and the second variation coefficient change rate is larger than the upper limit value in the second variation coefficient change threshold value, determining to generate an eighth adjustment instruction to increase the initial knitting speed and the increase amplitude is smaller than the seventh adjustment instruction.
8. The method for preparing a camel hair knitted fabric based on a continuous process route according to claim 5, wherein the process of adjusting the initial drying temperature comprises: Calculating the ratio of the shrinkage rate of the fabric after the fabric is shaped to the shrinkage rate before the fabric is shaped, and taking the ratio as the shrinkage change rate; And adjusting the initial drying temperature based on the comparison result of the shrinkage change rate and the change rate threshold value.
9. The method for preparing a camel hair knitted fabric based on a continuous process route according to claim 8, wherein the process of adjusting the initial drying temperature further comprises: if the shrinkage change rate is smaller than the change rate threshold value, determining to generate a ninth adjusting instruction to reduce the initial drying temperature; and if the shrinkage change rate is larger than the change rate threshold, determining to generate a tenth adjusting instruction to increase the initial drying temperature.
10. The method for preparing a camel hair knitted fabric based on a continuous process path according to claim 1, wherein the camel hair raw material is sequentially and continuously subjected to opening, impurity removal and mixing pretreatment to obtain pretreated camel hair fiber; Continuously applying and finishing the finish during the mixing process to form the mixed fiber stream; Wherein the camel hair raw material is the camel hair subjected to classification, washing and disinfection, the auxiliary fiber is at least one of cashmere or wool or a soluble chemical fiber, and the mass ratio of the camel hair fiber in the mixed fiber stream is 60-70%.

Description

Preparation method of camel hair knitted fabric based on continuous process path Technical Field The invention relates to the technical field of camel hair knitted fabric preparation, in particular to a camel hair knitted fabric preparation method based on a continuous process path. Background The camel hair is taken as a precious natural protein fiber, and has the characteristics of softness, fluffiness, excellent warmth retention, soft luster, good skin-friendly property and the like, thus having important application value in the field of high-grade knitted dress. However, the camel hair fiber has relatively smooth surface scale structure, short fiber length and uneven strength, and has the bottleneck problems of high spinning difficulty, unstable yarn quality, low production efficiency and the like in actual processing. At present, a sectional intermittent production process is commonly adopted for preparing camel hair knitted fabrics in the industry. Specifically, the processes of fiber mixing, carding, drawing, spinning, braiding, finishing and the like are usually carried out independently, and a large number of links of material transferring, intermediate storage and readiness exist between the processes. The production mode not only results in long production period, high energy consumption and large labor force demand, but also causes that quality fluctuation in the production process is difficult to capture and correct in time due to the independence of process environment and parameters in each stage. For example, if the density and uniformity of the fiber web deviate in the carding process, the fiber web is often found through off-line detection after all the batches are carded, and a great amount of semi-finished products have quality hidden trouble at the moment. The Chinese patent publication No. CN117364334A discloses a moisture-absorbing sweat-releasing antibacterial fabric and a preparation method thereof, and the related technical scheme comprises the following steps of firstly blending the special-shaped polyester fiber and the fine cotton wool in parts by weight to obtain a blended yarn A, blending the bamboo charcoal fiber and the modal fiber in parts by weight to obtain a blended yarn B, secondly feeding the blended yarn A and the blended yarn B into a weft knitting machine at the same time to form loops by bending, enabling the blended yarn A to be arranged on the outer layer and the blended yarn B to be arranged on the inner layer, obtaining embryonic cloth, thirdly dyeing the embryonic cloth, dehydrating and drying the embryonic cloth, continuously running in finishing liquid, drying the embryonic cloth, padding the dried base cloth, performing antibacterial finishing, drying, tentering and setting, and finally affecting the final fabric quality due to the lack of real-time monitoring and cooperative regulation based on monitoring results in the related technical scheme. Therefore, there is a need for a preparation method of camel hair fabric capable of realizing efficient, stable and high-quality conversion from raw materials to grey cloth, and simultaneously, carrying out real-time monitoring and cooperative regulation and control on a continuous production process so as to improve the linkage of process parameters and the real-time of feedback regulation among various processes, thereby improving the flow stability and the production efficiency. Disclosure of Invention Therefore, the invention provides a camel hair knitted fabric preparation method based on a continuous process path, which is used for solving the problems of unstable preparation flow and low production efficiency of the camel hair knitted fabric caused by the adoption of a sectional intermittent process and lack of monitoring and analysis regulation and control for preparing the camel hair knitted fabric in the prior art. In order to achieve the above purpose, the preparation method of the camel hair knitted fabric based on the continuous process path provided by the invention comprises the following steps: mixing the pretreated camel hair fibers with auxiliary fibers to obtain mixed fiber streams, detecting the mixed fiber streams to determine corresponding mixed fiber densities and mixed fiber uniformity, and determining carding speed of a carding machine and initial draft multiple of a drawing frame based on the mixed fiber densities and the mixed fiber uniformity; Processing the mixed fiber stream based on the carding speed to obtain carded raw fibers, detecting the carded raw fibers to determine corresponding raw fiber density and raw fiber uniformity, and adjusting the initial draft based on the raw fiber density and the mixed fiber density and the comparison of raw fiber uniformity and mixed fiber uniformity; Processing the carded raw sliver based on the adjusted draft multiple to obtain a drawn sliver, detecting the drawn sliver to determine a corresponding sliver uniformity variation coefficient, and d