1.1 problems of different colors and fibers
This is the problem that the color spinning production enterprises encounter the most complaints from customers and the management is difficult.
1.1.1 causes
(1) The dyeing of raw materials is uneven and inconsistent.
(2) Improper management of roll back, receipt return and flower return or fluctuation of use proportion.
(3) Extensive management.
1.1.2 preventive measures
(1) Control raw material procurement and dyeing.
(2) Control the production process and catch defects.
(3) Keep the operation clean.
(4) Turn off the humidity of the boarding process.
(5) Keep the dust isolation off.
(6) From the original package to the packaging, everyone checks, everyone finds fault, and rewards and punishments are revealed.
1.2 color difference and color deviation
It is easy for color spinning to expose the problem of color difference and form the problem of color difference and color deviation.
1.2.1 causes
(1) The customer's sample requirements were vague.
(2) The dyeing and spinning of fiber enterprises are not accurate.
(3) There are differences between small samples and large goods of yarn manufacturers.
(4) The dyeing and finishing process of weaving and dyeing enterprises has changed.
1.2.2 preventive measures
(1) Control the standard of receiving orders and samples.
(2) Control the differences between small samples, medium samples and large goods.
(3) Check the production of bulk goods.
(4) Do a good job in negotiation and remedy.
1.3 color point and color knot
The fiber knot formed by dyed fiber or natural fiber in the spinning process is easy to appear because of the large contrast between the color and the yarn.
1.3.1 causes
(1) Differences in fiber quality produced by fiber enterprises.
(2) The carding process of color cotton, color screen and color bar is improper, and the cleanliness of the production environment is poor.
1.3.2 preventive measures
(1) Control the source procurement of colored raw materials.
(2) Control the production process of light, medium and dark fibers.
(3) Ensure the operation and cleaning of the opening process.
(4) Keep the running state of the drafting parts of the equipment in good condition.
1.4 coloration and color fastness
This is a problem caused by improper control of the front channel, feedback in the middle and coordination in the back channel.
1.4.1 causes
The production of dyeing plants is the mainstream, and the high-temperature finishing of the subsequent process will also be produced.
1.4.2 preventive measures
(1) Control the incoming of dyeing materials.
(2) Check the complementary color in the production process.
(3) Check the customer's use prompt after the check.
1.5 color dots and floating points
Color dots and floating points are one of the most common complaints in export orders.
1.5.1 causes
(1) Improper manufacturing process of color dots.
(2) Raw material dyeing, cotton web dyeing and combed strip dyeing have different effects on color dots and floating points.
(3) Improper loading of blowing carding process.
1.5.2 preventive measures
(1) Ensure that the customer's sample requirements are met.
(2) Control the dyeing process.
(3) Control the blowing and combing process.
1.6 coarse details, sliver, cottonseed crumbs
The problems of slugs, slivers and cottonseed chips are also one of the common complaints caused by the difference in cognition of color spinning quality standards between the upstream and downstream of an industrial chain.
1.6.1 causes
(1) Poor quality of raw materials.
(2) The equipment is in poor operating condition.
(3) Illegal operation.
1.6.2 preventive measures
(1) Control the cleaning, combing and cleaning.
(2) Control the weight unevenness of drawing.
(3) Keep the spinning drafting parts in good condition.
(4) Check the customs clearance of the self connected telephone.
1.7 strong low and weak twist yarn
Although the problem of low strength and weak twist yarn is a case, it is also a problem often fed back by customers.
1.7.1 causes
(1) Individual spinning machines and spindles are not in good condition.
(2) The twist of the whole machine and batch process.
1.7.2 preventive measures
(1) Keep the spinning equipment in good condition.
(2) Keep a good self-control and catch faults.
1.8 triple filament and fluorescence
Three silk and fluorescent problems are the problems with which export and children's wear customers complain more.
1.8.1 causes
(1) The natural color raw material contains three filaments and fluorescence.
(2) In the process of dyeing and color spinning, three filaments and fluorescence are introduced.
(3) The recycled and reused materials contain three filaments and fluorescence.
1.8.2 preventive measures
(1) Control raw material procurement and dyeing.
(2) Keep the production process clean.
(3) Strictly isolate the machines and workshops.
(4) Control the defect prevention and quality inspection of each process.
1.9 cross road and cross grain
1.9.1 causes
(1) The small sample is different from the large one.
(2) Mixing and uneven drafting in the production process.
1.9.2 preventive measures
(1) Control the difference between small samples and large goods at the source of receiving orders.
(2) Control the color mixing unevenness.
(3) Control the strength of single spindle and abnormal twist.
(4) Good spinning, self winding and fault finding.
1.10 random yarn and moldy yarn
The problem of disordered yarn and moldy yarn should not happen, but in fact, it happens from time to time in enterprises.
1.10.1 causes
(1) Self - winding produces disordered yarn
(2) The humidity in the workshop and warehouse is too high, and moldy yarn will be produced during storage and transportation.
1.10.2 preventive measures
(1) Close the self winding operation (the suction nozzle channel should be smooth).
(2) Ensure storage and delivery.
(3) The quality of rain water on the road of good fortune should be controlled.
2、 Strengthening the basic management of color spinning
Color textile enterprises should have a clear understanding of the current situation. On the one hand, they should do a good job in basic management, and on the other hand, they should do a good job in technical transformation according to their capabilities, such as updating key equipment and equipment in key processes such as carding, drawing, spinning and winding, reducing labor, improving quality and efficiency.
Doing a good job in basic management is mainly to do a good job in "Three Basics" (grass-roots, basic and basic skills), improve "three qualities" (ideological quality, work quality and product quality), and grasp the product quality of color spinning, relying on standards, processes, inspections and assessments.
source:https://mp.weixin.qq.com/s/0ilyrz3mzlfiCxkTJWoC9g