U型紙護(hù)角是紙護(hù)角的一種分類，由于紙護(hù)角的形狀就像字母U的形狀，因而被稱為U型紙護(hù)角，與此對(duì)應(yīng)的還有L型紙護(hù)角。那么U型紙護(hù)角的制作流程你都清楚嗎？
U-shaped paper corner guard is a kind of classification of paper corner guard. Because the shape of paper corner guard is like the shape of letter U, it is called U-shaped paper corner guard, and corresponding to this is L-type paper corner guard. Do you know the production process of U-shaped paper corner guard?
一般印刷U型紙護(hù)角的生產(chǎn)分為U型紙護(hù)角漿和造U型紙護(hù)角兩個(gè)基本過程，制漿就是用機(jī)械的方法、化學(xué)的方法或者兩者相結(jié)合的方法把植物纖維原料離解變成本色U型紙護(hù)角漿或漂白U型紙護(hù)角漿。
Generally, the production of U-shaped paper corner guard is divided into two basic processes: U-shaped paper corner guard pulp and u-paper corner guard. Pulping is to use mechanical method, chemical method or a combination of the two methods to separate plant fiber raw materials into natural U-shaped paper corner guard pulp or bleached u-paper corner guard pulp.
造U型紙護(hù)角則是把懸浮在水中的U型紙護(hù)角漿纖維，經(jīng)過各種加工結(jié)合成合乎各種要求的U型紙護(hù)角頁。
To make U-shaped paper corner guard is to combine the U-shaped paper angle guard pulp fiber suspended in water into U-shaped paper corner guard page after various processing.
造U型紙護(hù)角廠一般需貯存足夠用4～6個(gè)月的原料，使原料在貯存中經(jīng)過自然發(fā)酵，以利于制漿，同時(shí)保證U型紙護(hù)角廠的連續(xù)生產(chǎn)。經(jīng)備料工段把蘆葦、麥草和木材等原料切削成料片（供生產(chǎn)化學(xué)漿）或木斷（供生產(chǎn)磨木漿），再把小片原料放到蒸煮器內(nèi)加化學(xué)藥液，用蒸汽進(jìn)行蒸煮，把原料煮成U型紙護(hù)角漿，或把木斷送到磨木機(jī)上磨成U型紙護(hù)角漿，也可經(jīng)過一定程度的蒸煮再磨成U型紙護(hù)角漿。
In general, the U-shaped paper corner guard plant needs to store enough raw materials for 4-6 months, so that the raw materials can undergo natural fermentation during storage, which is conducive to pulping and ensure the continuous production of U-shaped paper corner guard plant. The raw materials such as reed, wheat straw and wood are cut into pieces (for the production of chemical pulp) or wood chips (for the production of wood grinding pulp) by the material preparation section, and then the small pieces of raw materials are put into the digester to add chemical solution, and steam is used for cooking. The raw materials are boiled into U-shaped paper corner guard pulp, or the wood is sent to the wood grinder to grind into U-shaped paper corner guard pulp, or after a certain degree of cooking, it can be ground into U-shaped paper corner guard Pulp.
然后用大量清水對(duì)U型紙護(hù)角漿進(jìn)行洗滌，并通過篩選和凈化把漿中的粗片、節(jié)子、石塊及沙子等除去。再根據(jù)U型紙護(hù)角種的要求，用漂白劑把U型紙護(hù)角漿漂到所要求的白度，接著利用打漿設(shè)備進(jìn)行打漿。
Then the U-shaped corner guard pulp was washed with a large amount of water, and the coarse pieces, knots, stones and sand in the pulp were removed by screening and purification. Then according to the requirements of U-type paper corner guard, bleach the U-shaped paper corner guard pulp to the required whiteness, and then use the beating equipment to beating.
然后在U型紙護(hù)角漿中加入改善U型紙護(hù)角張性能的填料、膠料、施膠劑等各種輔料，并再次進(jìn)行凈化和篩選，后送上造U型紙護(hù)角機(jī)經(jīng)過網(wǎng)部濾水、壓榨脫水、烘缸干燥、壓光卷取，并進(jìn)行分切復(fù)卷或裁切生產(chǎn)出卷筒U型紙護(hù)角和平板U型紙護(hù)角。如果生產(chǎn)要生產(chǎn)涂布印刷U型紙護(hù)角，則需要干燥中部或生產(chǎn)成卷筒U型紙護(hù)角后經(jīng)涂布加工而實(shí)現(xiàn)。
Then, fillers, sizing agents and other auxiliary materials to improve the performance of U-shaped paper corner guard are added into the U-shaped paper corner guard pulp, and then purified and screened again. Finally, it is sent to the U-shaped paper corner guard machine for making U-shaped paper. After water filtration, press dehydration, drying in the dryer, calendering and coiling, and cutting and rewinding or cutting, the U-shaped corner guard and flat U-shaped corner guard are produced. If you want to produce coated printing U-shaped paper corner guard, you need to dry the middle or produce roll U-shaped paper corner guard after coating processing.
U型紙護(hù)角的成品看似簡(jiǎn)單，其實(shí)經(jīng)過了非常復(fù)雜的制作流程，其中每個(gè)環(huán)節(jié)都不能出差錯(cuò)，這樣才能確保U型紙護(hù)角制作廠家制作出的U型紙護(hù)角。
The finished product of U-shaped paper corner guard seems simple, but it has gone through a very complicated production process, in which no error can be made in each link, so as to ensure that the u-paper corner guard manufacturer can produce high-quality u-paper corner guard.
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