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About the use of wireless rubber subscribes advantage

Wireless rubber subscribes mainly used in hardcover core stick back, the shell and wrote to the shell and paperback books, magazines and manual bag cover processes etc. With glue binding basically has the following kinds: starch paste adhesive (starch paste, dextrin), animal glue (bone glue), cellulose binder, synthetic resin binder (polyvinyl acetate, poly (vinyl alcohol), hot melt adhesive), etc.
1. The starch paste adhesive
(l) starch paste. Book binding with starch paste (also called the paste) mainly from wheat, corn, potatoes, rice extract of starch as raw starch (5% ~ 12%) and water (95% 88%) heating to 80 ℃ above and manufactured. The right temperature modulation, paste will have strong force of the cementing. When temperature is too low, can not completely starch gelatinization, cementation and not easy to use weak force; When the temperature is higher, paste will gradually become the form of glass processes, continue to heat up, will soon be reduced paste the rapping.
Paste is binding common adhesive materials, widely used in bond paper, fabric and paper Biao paste, sticky covers, HuanChen, plasma back processing, should not be binding bond strength requirement of high machining parts. Paste the wide raw material sources, easy fabrication, tasteless, non-toxic, low cost and easy to use. Paste have certain bond fastness, but easy bibulous ChaoXie, and make the sticking fall off. Paste easy fermentation, moldy so that corruption, to prevent corruption, often add a little formaldehyde, so it's best to now currently in use in system.
(2) the inclusion. The raw material of inclusion in starch still give priority to, and paste than its good adhesion, quick drying, good diaphaneity, can be placed for long deteriorate and use more extensive.
Soluble in hot water floor not only, and still can soluble in cold water into the glue of various concentrations with, generally with the concentration of 45% ~ 50% of inclusion for paper, textiles, and aqueous solution of adhesive.
After drying the membrane of the floor more brittle, adhesion is not strong, if use sticky lacquer wood floor and paper, dry it easier to peel it off from dextrin layer. Therefore can join the l % to 2% of glycerol to improve the flexibility of the film; Add 0.65% ~ 1% of borax, can improve the adhesive of the fastness inclusion.
2. Bone glue
The major components of the bone glue is gelatin gluten protein, low purity of bone glue or PiJiao says, high purity of gelatin says. Bone glue at normal temperature is solid purulent hard pieces. In cold water can't melt, but it can water absorption and inflation. When making to animal bones, skin, horns as raw materials, extract has adhesiveness glue protein and manufactured.
Bone glue binding strength, high finalize the design good, because water content is low, the drying speed is fast, used to make hardcover shell and ShuBei cloth, ShuBei paper wall cloth, the bond. Bone glue long water resistant, treat water can make sub inflation, lose bond strength, if water cut weight more than 20%, you'll be decaying.
Use bone glue, glue should be first press one, the proportion of 2 copies of water in the water for about 10 h, when used, use bath hot method, the heated to 70 ~ 75 (good melting into liquid, stay liquid flow to normal. The heating temperature can be used more than 100 ℃ when glue aging metamorphism. Because of the extensive use of animal glue, and the source Co., LTD, has gradually be replaced synthetic rubber.
Gelatin in book binding are rarely used, because of its high price, usually in a high-grade album or special processing when used.
3. Cellulose adhesive
Cellulose adhesive and says paper hair paste, no food paste. Book binding used in cellulose adhesive is carboxymethyl cellulose adhesive. Paper sell without hair paste, it is more with cutting paper printing side to process. General is crushed paper hair, through the chemical method, ether than therein, then the water and processing and manufactured. Because of its wide raw material sources, thus has been applied in the printing industry.
Hair dry paste paper of adhesive performance is good, the film flexibility is good, keep stable performance, not gone mouldy, does not fear the rat bite bug eat by moth, starch paste is the substitute.
Paper can be used for bonding insert hair paste, lining page, bag cover, the drying speed than starch paste slow, such as polyvinyl alcohol (pva) and mixed use, the effect is good.

(Gold Printing Group)
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