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　　YF402表面施膠淀粉的特性介紹

　　YF402 Surface Sizing Starch Character Introduction

　　該品種淀粉是采用次氯酸鈉為氧化劑及濕法工藝生產(chǎn)的氧化淀粉。該品種淀粉蒸煮糊化后淀粉糊液均勻透明，糊液穩(wěn)定。在文化用紙的生產(chǎn)中，使用該品種淀粉對紙張進行表面施膠可顯著提高紙張的表面強度，減少紙張在印刷中的掉毛、掉粉現(xiàn)象，并適當(dāng)進一步改進紙張的施膠度。因為羧基的存在，使得淀粉顆粒糊化后產(chǎn)生了更多的氫鍵，這些氫鍵增加了淀粉對紙張纖維的粘結(jié)力從而得到強度更高的淀粉膜。

　　This type of starch is oxidized starch produced by wet process, adopting sodium hypochlorite as oxidizing agent. The starch paste is even, transparent and stable after cooking. In cultural paper production, use this kind of starch could increase paper surface strength; reduce linting and pull-up when printing. Because of the existence of carboxyl, made starch granule after gelatinization bring more hydrogen bonds. These hydrogen bonds strengthen fiber cohesive force between starch and paper; thereby gain better strength starch film.