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印版种类白裂的补救措施

来源:   日期:2021-05-07

一、点式白化。主要原因进油墨体系对蜡类的表面活性剂类互溶性差造成的;其二是因为油墨结皮之后在印刷的过程中未被复溶而被转移到图文上。

1、 Point whitening. The main reason is the poor mutual solubility of wax surfactants in the ink system; The other is that the ink is transferred to the image and text because it is not re dissolved in the printing process.
处理的方法:应该加入芳烃或酯类真溶剂,促其再度溶解。或者在墨斗里安装一个搅拌器(如采用塑料管材,在其外部用未印刷的塑料薄膜套上,再将两头扎紧放在墨头里随机转动搅匀油墨),或者在油墨制造的时候增添抗氧剂处理。
Treatment method: aromatic hydrocarbon or ester true solvent should be added to promote its re dissolution. Or install a stirrer in the ink bucket (for example, use plastic pipe, cover it with unprinted plastic film on the outside, and then tie the two ends tightly in the ink head and rotate randomly to mix the ink), or add antioxidant treatment when making the ink.
二、点式白点。主要原因是油墨静电或者承印物静电造成的。或者因稀释溶剂产生的静电(因不同的溶剂其电阻也不尽相同)造成的。一般在气温高或者印刷速度快的时候发生。其次复膜的时候前紧后松或者前松后紧,而静电的引起常见于湿度大的天气。
2、 Dot white dot. The main reason is caused by ink static or substrate static. Or because of the electrostatic generated by diluting the solvent (because the resistance of different solvents is not the same). It usually occurs when the temperature is high or the printing speed is fast. Secondly, when laminating before tight after loose or before loose after tight, and electrostatic caused by common in high humidity weather.
处理的方法:可在油墨里适量的加大抗静电剂(过量则影响复合牢度),选择电阻比较小的溶剂稀释油墨,调整放、收接地导线(一般深度为700~1500mm)处理之。
Treatment method: increase the amount of antistatic agent in the ink (excessive will affect the composite fastness), select the solvent with small resistance to dilute the ink, and adjust the discharge and collection grounding wire (general depth is 700 ~ 1500mm) for treatment.
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三、裂纹式白化。主要原因一是油墨转移性能太差,二是印版图纹太浅而比较容易使油墨体系中的溶剂挥发太快。
3、 Crack type albinism. One of the main reasons is that the ink transfer performance is too poor, and the other is that the printing plate pattern is too shallow and easy to make the solvent in the ink system volatilize too fast.
一般印迹粗糙导致成膜不良,特别是油墨体系或者墨斗稀释剂的加入吸入了水分而出现的白化,大多出现在夏季车间湿度太高的环境中。
Generally, rough imprinting leads to poor film formation, especially the whitening caused by the addition of ink system or ink bucket diluent, which mostly occurs in the environment of high humidity in summer workshop.
处理的方法:更换转移性好的油墨或者更换比较深的印版,其三加入慢干溶剂处理。
Treatment method: change the transfer of good ink or replace a deeper plate, and third, add slow dry solvent treatment.
四、整块印迹的白化。主要的原因:
4、 Whitening of the whole imprint. The main reasons are as follows
1、在连续印刷时间过长,操编辑在发现油墨粘度变粘或者变厚的时候,重复加入某一种单一溶剂,从而打破原有油墨体系中混合溶剂的挥发递度平衡,造成印刷油墨成膜的时候墨层粗糙、泛白
1. When the continuous printing time is too long and the operator finds that the ink viscosity becomes sticky or thick, he repeatedly adds a single solvent, so as to break the volatility balance of mixed solvents in the original ink system, resulting in rough and white ink layer when the printing ink forms a film
2、操作工既使是加入了混合溶剂,但是过量地加入往往使油墨中合成树脂的含量相对减少,上述泛白现象一样也会出现。
2. Even if the operator is adding a mixed solvent, but excessive addition often makes the content of synthetic resin in the ink relatively reduced, the above whitening phenomenon will also appear.
处理的方法:一是添加3%~7%的慢干溶剂,尤其是可以增塑油墨而抵抗水分子的侵入的真溶剂;二是选用含有树脂的专用稀释剂;三是在油墨里补加5%~15%的调墨油,以克服因树脂含量不足而导致的白化,四是在车间安装能调控温、湿度的空调或者用吸湿器消除之。
The treatment methods are as follows: 1) adding 3% - 7% slow drying solvent, especially the true solvent which can plasticize the ink and resist the invasion of water molecules; Second, select special diluent containing resin; The third is to add 5% - 15% of ink blending oil in the ink to overcome the whitening caused by insufficient resin content. The fourth is to install a central air conditioner that can control the temperature and humidity in the workshop or use a moisture absorber to eliminate it.
购买产品重要的是质量,选择商家选择是诚信,济南棋牌游戏平台-威尼斯官方网站平台-登录印刷真诚的为广大客户提供优良的服务,欢迎大家在网站:下方留言咨询.
The most important thing to buy products is quality, and choosing merchants is honesty. Jinan picture book printing sincerely provides excellent services for our customers. Welcome to our website: Below message consultation


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