What is the cold mounted board
Cold plate of the bubble problem, the bubble phenomenon: dough and plate core blistering.
Cause Analysis
1, board core curing period is too short;
2, neutral glue problems or glue is wrong;
3, into a plate after the sun direct or ultraviolet light irradiation. Common foaming is due to the dough is too thin, after the sun blunt, the picture and the dermis rarely blister, from the theoretical analysis is very easy to blister.
KT board is a PS foam sheet, the board is crisp, light, easy to degenerate, easy to process, and can be directly on the board screen printing, paint (need to detect paint adaptability) and inkjet, widely used in advertising, Decoration, culture and art and packaging. The use of advertising is used for product promotion information dissemination of the exhibition, display and notice with mounting liner, the other is a large number of applications used in a screen printing, especially for a wide range of unified publicity activities carried out.
KT board from the current more mature production process can be divided into cold composite and thermal composite, these two different products produced by the corresponding product called (cold composite board) cold plate - commonly known as cold mounted board and (hot composite board Hot plate - the KT board.
Cold plate production process, the first is the core foam: the raw material is PS particles, but because the cold plate is mostly single-layer board core, so to double foam, the first foam thickness is generally about 3.5mm, ripening After half a month, and then the second foam, the core into the device foam to 5.0-5.2mm or so, the second foam can be directly after the paste paste.
And then paste the dough: dough the substrate is PVC, usually 0.08m-0.1mm, 0.9 × 2.4 small plates are mostly used 0.08-0.1mm dough, 1.2 × 2.4 large plate generally use 0.16mm dough to strengthen the board Stiffness, because the surface is PVC, the core is the PS material, so the choice must be neutral glue, glue in the dough and the core at the same time glue each other paste, paste to the plate hydraulic press (more than ten tons) squeeze, more than 24 hours Can be taken out trimming trim shipping. Yichang area commonly used cold plate is mainly 1.2 × 2.4 large board, 0.9 × 2.4 small board is now rarely seen on the market.
Cold mounted board is actually a member of the KT board family. These two materials are widely used in the picture frame.
