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Changzhou Wujin Guangyu Embossing Roller Machinery Co.,Ltd

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Calendering

Calender composed of several hard rolls just before creamy and soft rolls. Hard roll is a metal roll, before the end of Britain highly polished or engraved with dense parallel lines, often with heating installation; soft roll to roll or polyamide fiber plastic rolls. Fiber roll is fiber as raw materials under high pressure made of fiber materials are cotton roller, wool and linen paper roll paper roll. Hard by the nip roll and soft roll constituted said hard nip, rolled a temperature of 60 ~ 70 ℃, aqueous fabric of 5 to 10% is appropriate. After the fabrics were rolled yarn is compressed, before smooth, glossy enhanced feel stiff, flat called calendering. Nip formed by the two soft roll is called soft nip, rolled ordinary temperature at 40 ~ 60 ℃, the fabric warp yarn rolled slightly flattened, luster gentle, soft feel, called soft calender. The use of a multi-roll equipment, the operating software and pressure differences and the combination of hard nips, temperature, threading style changes, get an overview of the differences luster. If the first fabric padding resin body early reduction and pre-drying tenter Britain at the end, after calendering obtain more durable sheen.
② stack calendering: unified multi-layer fabric nip rolled simultaneously. There are layers of fabric between probation rub each other, can clear the fabric weave, feel soft, gentle luster, wool poplin fabric type commonly used in the roll calender. Any equipment is composed of 5 to 7 rolls. Of which two are hard rolls can be heated, rolled at room temperature to 50 ℃. Information constituting the laminated fabric was first used by calendering _ Baidu Encyclopedia February 27, 2013 after the cases one by one each roller nip between the fabric of the last nip, the top end of the back leads the cloth after each frame from scratch nip, predicament repeated 3 to 6 times, you can have 3 to 6 layers of fabric between nip.
④ electro: ohmic heating roll fabric calendering called electro. Such equipment before engraved metal roll 50 to 200 / cm diagonal thin dense, called electro-optic roll. Electro-optic roll and soft roll nip is formed, it rolled at a temperature of 160 ~ 180 ℃, before constituting the fabric of very fine parallel lines, reflecting the pleasing sheen. Fine diagonal density and angle, and layout, twist the yarn fabric, twist to respond jointly to obtain excellent results.
③ conflict calender: Equipment from a soft roll and a hard roll constituted two. Soft roll at both ends. The hard roll is highly polished conflict roll and soft roll forming point of conflict. The above hard roll and a soft roll to form a hard nip. First by the fabric and then the hard nip point of conflict. Conflicts are automatically roll and soft roll roll roll before the conflict but wire-speed line-rate greater than before the soft roll, the fabric was before the conflict occurred significantly luster yarn crushed by the open space between the weft significantly reduce. Conflict roll before line speed and fabric speed ratio up to 4: 1, the commonly used ratio is 1.3 to 2.5: 1. Conflict is usually roll temperature 100 ~ 120 ℃, the fabric is 10 to 15% water.