Ink blots drying too fast can cause poor fixation
In the case of multi-color overprinting of screen printing, on the basis of the ink that has been printed first, the color ink behind cannot be printed, and the ink is not firmly fixed. It is mainly due to the excessive dry oil added to the ink, which causes excessive drying, or the long time for stacking the semi-finished products, which causes vitrification on the imprinted surface. At this time the imprinted surface is very smooth, losing the adsorption capacity, the latter color will not be printed, this failure is often seen in the larger area, especially the yellow ink or line pattern prints.
Treatment methods: 1 should be based on prevention, as far as possible not to make the ink desiccant overdose; 2 to easily vitrified yellow ink in advance by adding the appropriate amount of Weili oil, magnesium carbonate powder and other auxiliary materials to make the ink film surface roughness Or extend the drying time, which has a certain effect on preventing the vitrification; 3 If the vitrification phenomenon occurs, the latter color cannot be printed, and when the quantity is small, a soft cloth can be used to dip the magnesium carbonate powder, and each surface will be gently wiped. Effective; 4 also can use a soft cloth to wipe diluted sodium hydroxide solution, will have an effect.
Reprinted from: China Washing & Dyeing Industry Information Center
A coffee table is a low table designed to be placed in a sitting area for convenient support of beverages, remote controls, magazines, books (especially large, illustrated coffee table books), decorative objects, and other small items.
Most coffee tables are made of wood (though faux wood tables are increasingly common) or glass and metal, typically, stainless steel or aluminum and may incorporate cabinets or drawers.
Coffee tables were thought to initially be constructed in Renaissance England.
Origins
Japanese style coffee table.
In Europe, the first tables specifically designed as and called coffee tables, appear to have been made in Britain during the late Victorian era.
Couch and coffee table in a hotel room
According to the listing in Victorian Furniture by R. W. Symonds & B. B. Whineray and also in The Country Life Book of English Furniture by Edward T. Joy, a table designed by E. W. Godwin in 1868 and made in large numbers by William Watt, and Collinson and Lock, is a coffee table. If this is correct it may be one of the earliest made in Europe. Other sources, however, list it only as "table" so this can not be stated categorically. Far from being a low table, this table was about twenty-seven inches high.[citation needed]
Later coffee tables were designed as low tables and this idea may have come from the Ottoman Empire, based on the tables in use in tea gardens. However, as the Anglo-Japanese style was popular in Britain throughout the 1870s and 1880s and low tables were common in Japan, this seems to be an equally likely source for the concept of a long low table.
From the late 19th century onwards, many coffee tables were subsequently made in earlier styles due to the popularity of revivalism, so it is quite possible to find Louis XVI style coffee tables or Georgian style coffee tables, but there seems to be no evidence of a table actually made as a coffee table before this time. Joseph Aronson writing in 1938 defines a coffee table as a, "Low wide table now used before a sofa or couch. There is no historical precedent...," suggesting that coffee tables were a late development in the history of furniture. With the increasing availability of television sets from the 1950s onwards coffee tables really came into their own since they are low enough, even with cups and glasses on them, not to obstruct the view of the TV.[citation needed]
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