Main uses of scraper in the most popular silk scre
2022-10-02- Detail
The main use of scraper in silk screen printing
scraper is a tool used to coat photosensitive agent on silk, also known as sizing device. Most commonly used scrapers are made of stainless steel. This kind of scraper has the characteristics of light weight, light use, strong corrosion resistance, not easy to rust, convenient production and so on
the scraper has two purposes, one is to apply photosensitive adhesive, and the other is to seal. When coating photosensitive adhesive, first sample size 10 (7.5,5) × ten × 55 pour the photosensitive emulsion into the scraper, and the pouring amount generally does not exceed 1/2 of the capacity of the scraper. When in use, tilt the stretched frame about 70 degrees, lean against the fixed support, horizontally lean the edge of the scraper into which the photosensitive emulsion is placed against the lower end of the frame, and then tilt the scraper slightly upward to make the photosensitive agent contact the upper part. Then move steadily from bottom to top
in order to firmly combine the photosensitive film with the silk, the coating is scraped on both sides inside and outside the frame. The outer coating times of the frame are more than the inner coating times. The specific operation method is: scrape once and dry once. In order to ensure the uniformity of the film thickness, after each scraping, the frame position is changed up and down once, and the operation method is repeated until the required film thickness is reached
the commercialization practice of energy storage is constantly spreading out related links: experience exchange: main technical specifications and requirements of scraper
information source: Shengye data
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