稀释剂:上光油一般来说需使用专用稀释剂,稀释量控制在1:0.51:1左右,过多则会影响上光效果(具体视涂膜量而定)。
Diluent: glazing oil generally need to use special diluent, dilution control in 1:0.5 to 1:1, too much will affect the glazing effect (depending on the amount of film).
黏连(未干透):涂布太厚,应降黏度;灯功率不足或老化,应更换UV灯使之达到额定功率。
Adhesion (not completely dry): if the coating is too thick, the viscosity should be reduced; if the lamp power is insufficient or aging, the UV lamp should be replaced to reach the rated power.
平滑度不佳:上光机涂布辊筒损坏或上光油黏度高,应更换或重磨辊简,降上光油黏度。
Poor smoothness: the coating roller of polishing machine is damaged or the viscosity of polishing oil is high, the roller should be replaced or reground to reduce the viscosity of polishing oil.
为了增强蜡对纸纤维的附着力,在拔水剂中往往有松香衍生物或羧化高分子乳液,它们既对纸纤维有很好的粘附力,与蜡又有较好的相溶性。这样,它们的加入可促进蜡在纸纤维上的附着性,同时如果对蜡进行改性,如将其氧化、基化,也有类似作用,都可以使蜡对纸纤维的附着力增加。
In order to enhance the adhesion of wax to paper fibers, there are often rosin derivatives or carboxylated polymer emulsions in the water extraction agent. They have good adhesion to paper fibers and good solubility with wax. In this way, their addition can promote the adhesion of wax on paper fiber. At the same time, if wax is modified, such as oxidation and basification, it also has a similar effect, which can increase the adhesion of wax on paper fiber.
但是必须指出的是,就是增加了这些措施,拔水剂在这样的浓度下所形成的仍不是一个防水膜层,因此在遇到摩擦,如纸箱在搬运、堆码过程中遇摩擦,往往会使这一防水表面失去作用。这就是为什么把涂布拔水剂的这类纸箱定为暂时性防水纸箱。
However, it must be pointed out that even with the increase of these measures, the waterproof film formed by the extractant at such concentration is still not a waterproof layer. Therefore, in case of friction, such as friction in the process of carrying and stacking cartons, this waterproof surface will often lose its function. This is why the coating of such cartons as temporary waterproof cartons.
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