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制作胶袋是如何保证其质量的?
发布于:2021/10/19 印刷设备的结构和操作决定了包装胶袋的质量,这四个因素是:刮墨器、胶辊,供墨系统和干燥箱。下面,我们来谈谈如何保证包装胶袋的质量。
The structure and operation of printing equipment determine the quality of packaging plastic bags. These four factors are: ink scraper, rubber roller, ink supply system and drying oven. Next, let's talk about how to ensure the quality of plastic bags.
1.好的产品可以刮后印刷
1. Good products can be printed after scraping
如果你想刮掉不必要的墨水而不脏挂、墨水流(彩色流)和刀线,你必须适当调整刮刀的硬度、高度和角度。
If you want to scrape off unnecessary ink without dirty hanging, ink flow (color flow) and knife line, you must properly adjust the hardness, height and angle of the scraper.
2.铭记胶辊
2. Rubber roller
压花胶辊的硬度和压力直接影响塑料袋的上墨量。
The hardness and pressure of embossing cots directly affect the ink amount of plastic bags.
压花胶辊的硬度影响着着墨量,而胶辊的硬着墨量较小,胶辊的软着墨量较大。胶辊的压力太大,墨水量太大。胶辊的压力更小,墨水更少。
The hardness of embossed cots affects the inking amount, while the hard inking amount of COTS is small and the soft inking amount of COTS is large. The pressure of the cot is too high and the ink volume is too large. Cots have less pressure and less ink.
印版图案很深,胶辊的材料一定很硬;印刷版有一个轻的图案,所以印刷的胶辊必须由较软的材料制成。如果包装胶袋印刷速度快,胶辊的材料必须硬,如果包装印刷速度慢,必须采用软材料印刷胶辊。
The printing plate pattern is very deep, and the material of the cot must be very hard; The printing plate has a light pattern, so the rubber roller for printing must be made of softer material. If the packaging plastic bag printing speed is fast, the material of the rubber roller must be hard. If the packaging printing speed is slow, the rubber roller must be printed with soft material.
3.印刷设备的供墨系统
3. Ink supply system of printing equipment
循环必须是好的,并且总是确保墨水是不断流动的。应始终确保油墨粘度的一致性,并应定期进行测量和添加溶剂。新旧油墨应按比例混合使用。
The circulation must be good and always ensure that the ink is flowing. The consistency of ink viscosity shall always be ensured, and the measurement and solvent addition shall be carried out regularly. New and old inks should be mixed in proportion.
使用复合溶剂。避免油墨成分的不平衡、溶解和抗粗糙。用墨斗和搅拌棒进行油墨循环,注意墨斗不要太大,墨斗的大小要适中。
Use compound solvents. Avoid ink composition imbalance, dissolution and anti roughness. Use the ink bucket and mixing rod for ink circulation. Pay attention to that the ink bucket should not be too large and the size of the ink bucket should be moderate.
4.干燥箱
4. Drying oven
提高包装胶袋印刷速度重要的一点是烤箱的效果。
An important point to improve the printing speed of packaging plastic bags is the effect of the oven.
墨水是用热空气干燥的,而不是加热。温度越高,塑料袋上的墨水越难干燥。
Ink is dried with hot air, not heated. The higher the temperature, the harder it is to dry the ink on the plastic bag.
一,温度过高,会使油墨表面结膜。导致固体干燥的假干燥气氛随后是油墨中低熔点溶剂过早蒸发、高沸点残留溶剂以及干燥速度慢。
1、 If the temperature is too high, it will make the ink surface conjunctive. The pseudo drying atmosphere leading to solid drying is followed by premature evaporation of low melting point solvents, high boiling point residual solvents and slow drying speed.
规定干燥箱的温度应为40-50。空气不能直接吹到塑料薄膜上,热量也不能直接烤到薄膜表面。它应该具有良好的排气性能,并且不能将空气输送到印版和墨盒。干燥箱具有的二次回风特性。
It is specified that the temperature of the drying oven shall be 40-50. The air cannot be blown directly onto the plastic film, and the heat cannot be baked directly onto the film surface. It should have good exhaust performance and cannot deliver air to printing plates and cartridges. The drying oven has the characteristics of secondary return air.
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