Several Problems Needing Attention in the Production of Knitted Fabric Printing

Knitted Fabric Printing Because of the large number of fabrics, the printing of plugs is a headache. The main reason is that because of the different pretreatments of knitted fabrics and woven fabrics, knitted fabrics are not singed and mercerized and knitted fabrics are knitted. Cloth fabrics are relatively loose, and are treated in overflow cylinders. The cylinders treat the fabrics very easily and usually have more rags than woven fabrics.

Solution:

First, the warehouse should strengthen the inspection of customers' grey cloths. For warehouses with not very good quality knitted fabrics, the warehouse must notify the customers in a timely manner, communicate with them to explain the reasons, and agree on the treatment measures.

Second, prior to the notification to pay attention, and make appropriate measures to adjust the process and increase the frequency of washing, try to minimize the hair.

Third, in the semi-finished product set, increase the flow of the groove, so that the flow of water to wash off part of the hair.

Fourth, the knitted fabric with a lot of hair is washed again with a wool washing machine.

Fifth, try to choose a machine with a vacuum cleaner; In addition, a few sticky nets are placed on the printing table to stick a part of the hair.

1 The problem of many holes in the finished product. The holes in the finished knitted fabrics are mainly caused by the following three reasons: First, the blank itself has holes. Second, mechanical damage caused by holes, such as in the cylinder processing due to friction between the gray fabric is more severe, and easy to hook and broken the cylinder, yarn breaks easily. The third is the man-made cause of holes, such as the speed of the opener is too fast, when accidents occur, hand force to grasp, pull the cloth. Silk carts are not clean, bamboo clips inside the car, garbage are more, and mixing into the cylinder is also a reason to break the grey cloth . Solution: First, carefully inspect the incoming billets, many neps, many broken yarns, or fabrics with many yarn joints, and ask them to promptly notify the customer to deal with them because these problems are the root cause of the holes in the grey fabric; Pre-processing to make the appropriate process adjustments. If there is a hole in the billet itself, we must put an end to the next one. The second is to choose a smooth, high-performance cylinder to process the knitted fabric. The long-line washing rope cylinder should be kept clean and smooth. The third is to improve the responsibility of the operator, turn the fabric of the fabric to be clean, and prevent bamboo clips and nails from being caught in the cloth. The speed of the car should be strictly controlled during washing, and should not be too fast.

2 The problem of weight in production.

In general, customers pay more attention to the weight of finished knitted fabrics. It is also an important aspect of the quality of knitted fabrics for printing and dyeing companies. Whether the weight can be stabilized or weighted can meet the requirements of customers is a foothold for each printing and dyeing company. An important factor in the knitwear market.

In order to ensure the gram weight of each batch of products, the following points need to be taken:

First, check the quality of the grey cloth. Generally, the grammage of the incoming billet can reach the grammage requirement of the finished product. However, if the grammage of the semi-finished grey fabric does not reach the predetermined requirement of the finished grammage, the final product cannot meet the gram requirement. Therefore, the grammage of semi-finished products is very important. Generally, semifinished products can be expected to predict the weight of finished products.

Second, the grey fabric with spandex should be pre-ordered so that it can stabilize the weight of the finished product.

Thirdly, for the products that cannot be made from the same basis weight, the factory first analyzes the reasons first, tries to change the process operations, and does its best to satisfy the customers' requirements. Followed by informing customers to negotiate resolution.

The fourth is the reasonable choice of machinery and equipment, process operations, dyeing and auxiliaries. Because the machine's inherent performance cannot meet the grammage requirement, it is also more common. Therefore, the setting machine for knitted fabric must be selected, or the appropriate transformation is required. The temperature of the drying room is required to be stable, and the circulation blow and overfeed performance are better. According to the characteristics of the grey fabrics, formulating suitable processes also plays an important role in ensuring the grammage. For example, the pre-treatment is to select the auxiliaries with less weight loss as much as possible, and the stereotypes consider the best process to ensure the grammage of the products. If conditions permit, the coating process should be selected as far as possible to achieve the purpose of both stability and weight gain. Fifth, when the finished product is shaped, it can be properly added with some auxiliaries to increase the weight. For example, auxiliaries such as urea and water can be used to compensate for the lack of fabric weight.

Anti-staining problem in washing. Since knitted fabrics have not been treated with mercerizing, they are more likely to stain in the washing process, so the anti-staining requirements of white areas are higher.

So do:

First, steaming hair color to be completely, if the steaming is not good, wash and fall to heavy, the more pollution will be.

Second, the floating color should be washed clean, less floating color, when the soaping is not easy to be stained white.

Third, soap lotion requires soaping agent with good anti-staining properties to wash to avoid white stains. Fourth, the water to elute the paste to do, the cloth off the paste will not be exhausted, finishing feel will be too hard, more softeners will increase the cost of finishing, but also will cause the increase of defective products. Color stains on the fabric affect the quality of the product. Therefore, the washing process must pay attention to the development of the process, standard operation.

Knitted fabrics will also encounter many problems in the production process, I hope everyone in the production in strict accordance with the requirements of the production process, to eliminate artificial defective and batch production of defective products.