In order to improve the economic benefits of products, high value-added satin printing products have been developed. The printed product must comply with foreign samples, especially the effect of gold powder. The elegant, luxurious features of cash powder.
From the beginning of the trial, the use of imported gold powder and additives, to understand the nature of the powder and supporting the use of domestic additives. The selection of reasonable process conditions and process prescriptions met the needs of customers and added new printing and new printing techniques for our company. In the powder printing trial production, the company's special adhesive needs to be used according to the manufacturer's technical requirements. After printing trials. We have chosen our own self-made adhesives and imported special adhesives to mix together, so that not only can achieve the effect of the original imported adhesives, but also can save dyeing material costs.
1 The choice of gold powder
The quality of the golden gloss has a great influence on the style of the printed product. The higher the number of gold powder mesh, the more uniform the light reflection. The darker the gloss, the brighter the gloss.
In order to adapt to the rotary screen printing machine, the relationship between the mesh number of the printed nickel mesh and the number of gold powder meshes should be considered. In order to avoid causing the paste to block the mesh or the printed film is not in place. Easy to increase the difficulty of operation.
If you use strict national gold powder. Use alcohol and antioxidants during use. Pearl powder because of poor hiding power, and a larger number, not suitable for garden printing machine. The imported gold powder can be directly added to the sticky agent, which is easy to use, has a strong hiding power, and is not easily oxidized. Therefore, base powder has chosen strong imported gold powder.
2 Selection and dosage of gold powder adhesive
Because gold powder and gold powder adhesives are all imported. high cost. So the gold powder adhesive was improved and screened;
3 The choice of process conditions
4 selection of waterproof agent
As the product is a multi-functional product, it requires both the fabric and pattern effects to match the sample, and it must also have waterproof and oil-repellent effects. According to this feature of the product, we choose the water-repellent agent and compare the amount of different water-repellent agent in the selection of gold powder and adhesive.
From the above comparison results, it can be seen that the 4# waterproof and oil repellent effects are ideal. The effect of 1# and 5# is basically the same, but considering the cost, the price of imported waterproof agent is higher than that of domestic waterproof agent. Therefore, 5# is used as the waterproof and oil-repellent finish of the product.
The choice of different water repellent dosage:
Due to the fact that pure cotton satin satin fabrics are thicker than ordinary cotton products, and they are tight, the amount of liquid absorbed is large. To make the product meet the standard requirements at the same time. Must master the amount of waterproof agent, otherwise it can not meet the requirements of the indicators.
5 major production conditions
(1) Specifications
Pure cotton 2016945865" straight satin satin
(2) Process flow
Turn cloth→stitch→reel→deink→hot wash→steaming→hot wash→cold wash→staining→drying→printing→baking→waterproof width→check
(3) Process prescription and process conditions
1) The pre-treatment is basically the same as a cotton thick fabric package equipment process.
2) Rolling equipment for dyeing
3) Printing process prescription
Paint x/kg
Mixing cover printing y/kg
Imported gold powder 120---200/kg
Mixed adhesive 30/kg
(4) Water repellent prescription
Water repellent 2.5 to 4%
(5) Baking 17O °C 40s
(6) Physical index test results
6 Summary
After the production practice of pure cotton satin gold powder printed decorative fabrics, we believe that the use of a hybrid cover printing paste for gold powder adhesives is ideal. The cost is much lower than that of all imported adhesives, and all indicators have reached the standard.
Reprinted from: China Printing and Dyeing Network
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