Some abnormal solutions to coating gluing

1. At present, coatings are widely used, and the application markets of coatings are classified as follows: Sporttech: sports and leisure textiles Mobiltech: Textiles for automotive, ra...

1. At present, coatings are widely used, and the application markets of coatings are classified as follows:

Sporttech: sports and leisure textiles

Mobiltech: Textiles for automotive, rail and aviation applications

Medtech: hygiene and wellness textiles

Hometech: Urban decoration and urban furniture

Clothtech: ready-to-wear and fabrics

Protech: Personal and industrial protective clothing

Indutech: for filtration, polishing and cleaning

Geotech: Civil Engineering

Packtech: Textiles for packaging

2. Several topics of great concern:

1. Unlike other textile finishing processes, the coating finishing process is more “flexible and diverse”, which is closely related to its final product.

2. The coating finishing process becomes more complex and sophisticated. In addition to traditional wet, dry, foam, transfer, lamination, etc. methods, they are often combined with methods such as rolling

Polishing, sanding, washing, kneading, embossing and other finishing techniques make products more personalized (also such as: double-sided functional effects, etc.)

3. Please see the attached table for common failures, possible causes and solutions in coating production

Leather coating

This method is currently applied to cotton materials, and the formula dosage needs to be adjusted according to the material type and feel requirements.

A is a leather-like coating glue that can be directly applied to various textiles and has a hand-feel improvement effect and good breathability.

B is a modified silicone softener for coating, which can give fabrics high-end feel and drape.

C is a special formaldehyde-free cross-linking agent that can cross-link at 150 degrees, greatly improving the performance of the coating.

D is a non-ionic thickener, suitable for various pH ranges, resistant to hard water and electrolytes, and has very good flow stability.

For problems that arise during actual operation, you can completely refer to the solutions I provided

Key one: There is a certain amount of knowledge about the rheology of scraping slurry. People who have never been exposed to coatings need a period of time to explore. Secondly, the thickener is very special.

Key two: Another key to the quality of this kind of finishing is the scraper, arranged in order of effect: air scraper is good, magnetic scraper is second, and commonly used hanging scraper

The effect is difficult to control.

Key three: The rheology, shear force and comprehensive power of the slurry of several combined chemicals are also critical. The quality of the coating: consistent thickness, consistent from front to back, consistent from left to right, etc.

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Extended reading: https://www.tpu-ptfe.com/post/7715.htm

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