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印刷与复合材料的使用注意事项

印刷与复合材料的使用注意事项:

Notes on the use of printing and composites:

1、用于印刷的薄膜材料一定要选印刷级别的,印刷级别薄膜一般厚度均匀,收卷松紧度适中,印刷适应性好,可提高套印准确性。

1, for printing film material must choose printing level, printing grade film thickness is uniform, roll tightness is moderate, printing adaptability is good, can improve overprint accuracy.

2、对于有荷叶边的薄膜不可以直接使用,要么重新收卷,要么分切成窄的材料来用,消除了荷叶边才能使用。

2, for the film with the lotus leaf can not be used directly, or re roll, or cut into narrow materials to use, eliminating the lotus leaf to use.

薄膜如果在张力不稳定的分切机上分切或收卷,会改变薄膜的张力均衡性,直接影响印刷时的套印稳定。故应尽量选择张力稳定的分切机。

If the film is cut or rolled on an unstable slitting machine, it will change the tension balance of the film and directly affect the overprint stability in the printing process. Therefore, it is necessary to choose the slitter with stable tension.

3、压辊的宽度和薄膜的宽度要匹配,每个色座的压辊有效宽度和硬度要尽量一致,以获得稳定的套印效果。

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3, the width of the roller and the width of the film should be matched, and the effective width and hardness of the press roll of each color seat should be consistent as far as possible, in order to obtain stable overprint effect.

4、印刷NY基材,车间湿度超过75%对套印影响很大,如果不能对印刷车间进行除湿处理,就不要在高湿度的环境中印刷NY基材。另外由于NY极易吸潮变形,即使满足印刷条件,材料也不可以提前拆包。

4, printing NY substrate, workshop humidity more than 75% on overprint greatly affected, if not to the printing workshop dehumidification treatment, don't print NY substrate in high humidity environment. In addition, because NY is easy to absorb moisture and deformation, even if the printing condition is satisfied, the material can not be unpacked ahead of time.

5、做过涂层处理的薄膜,要选择合适的压辊,处理后的薄膜会比原基材滑或涩,压辊选择不合适,会影响套印,另外张力参数也要做针对性调整。

5, coating treatment of the film, to select the appropriate pressure roller, the treated film will be more slippery than the original material or astringent, roller selection is not appropriate, will affect the overprint, in addition to the tension parameters should be targeted adjustments.

6、影响套印不良的因素很多,一卷材料在某台印刷机上可能会发生找不出原因的套印不良,可以考虑转换其他印刷图案的订单,也可以换到另外一台机使用,有时也可以避免这卷材料因套印不良而不能使用的情况。

6, many adverse factors affect overprinter, a roll of material may not find the reason in a bad printing printing machine and other printing patterns may consider converting orders can also be changed to another machine, sometimes also can avoid the volume of materials for overprinter benign situation and can not use.

同样,即使一卷材料总是出现套印不良,但又找不出原因,也没有直观的材料异常现象,但换一卷同样规格的材料,有时也可以解决套印不良的问题,有经验的机长通常会做这样的调整,以应对无法判断的套印异常。

Similarly, if a roll of material is always bad but overprinter, no cause, no abnormal phenomenon of the material directly, but have a roll of the same specification material, sometimes also can solve the problem of poor overprint experienced captain, usually do such adjustment, cannot be judged in response to abnormal overprint.

7、材料的宽度占印刷机有效使用宽度的比例不能太大或太小,一般利用机器有效宽度的45%~90%,套印效果较理想。

7, the width of the width of the printing machine effective use of the width of the ratio should not be too large or too small, the general use of the machine effective width of 45%~90%, overprint effect is ideal.

8、因原材料卷底靠纸芯,可能有皱痕或收卷不良,会带来套印不良,这时卷底材料就不能继续使用了,要即时切料换卷。

8, because of raw material on the bottom roll paper core, there may be wrinkles or rolling bad, will bring bad printing volume at the end of material, then can not continue to use, to instant cutting roll changing.

9、使用前必须确定印刷材料在使用期内,其表面润湿张力在标准使用范围内。

9, the printing material must be determined before use, and its surface wetting tension is within the standard range of use.

10、材料使用前应测量它们之间的热收缩率,差值要尽量小,以免灭菌加工后因收缩率不一致而产生卷边起皱。一般两者的热收缩率差值在0.03%时产生卷边的概率小。

10, the material should be measured before the thermal shrinkage between them, the difference should be as small as possible, so as to avoid sterilization processing due to inconsistent shrinkage caused curling wrinkles. Generally, the probability of curling is minimum when the difference of heat shrinkage is 0.03%.

11、水煮、半高温、高温蒸煮袋的热封层材料非常关健,各自差别很大,特别是RCPP和SCPP使用应特别注意选用。

11, boiling, semi high temperature, high temperature cooking bag of heat sealing material is very different, Guan Jian, especially RCPP and SCPP should pay special attention to the use of selection.

以上文章来源于济南印刷厂家有哪些http://www.sdyszb.com/

 
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