客戶服務(wù)YE

掃二維碼在線咨詢

微信咨詢

給我們留言

在線客服
国产麻豆精品久久一二三_国产成年女人免费一区二区三区_人妻AV中出无码内射_亚洲日本韩国不卡中文字幕
  HOME | Message | Copyright: | Admin
中文版 | English
 
>> PRODUCT CATEGORY
>> CONTACT US
 
OLAT PRINTING MACHINERY INDUSTRY CO.,LTD

TEL:+86-13862636990   +86-512-5706 8888 
FAX::+86-512-5706 8800
E-mail:chinaolat@126.com
Contact:   Ye Qiao Yun  

 
  TRAIN
 
 

Screen printing machine/screen printing machine version of what are the main technical requirements?

Date:2012/9/20 9:48:31 Hits:5119
 In screen printing, printing ink blowing a version by moving in a certain pressure through the screen plate, transfer to the substrates and the formation of a graphic.Therefore, scraping the version of the various indicators affect the printing effect.Due to the is a wide variety of substrates materials, and also not the same condition, can be roughly divided into flat and curved surface (including spherical), so, according to the different substrates and substrates surface shape, should consider the following factors when choosing a scraping version.
       (1) scraper hardness ink transfer and graphic reproducibility is good or bad is related to the scraper hardness, generally in hard printed on printing, can use soft scraper, such by scrapping printing pressure can make layout and substrates full contact, in order to improve the printing effect.Instead, when printing soft substrates, with a hard scraper make good contact with the substrates, both in the same way.Because of there printing, printing material are different, the relatively smooth substrates generally choose a hard scraper, on the other hand, use a soft scraper printing effect will be better.Scraping board in India because of its certain pressure, scraper can produce certain bending, therefore, when using scraper, want to consider the bending fatigue and mechanical strength of scraper, scraper with a certain elasticity.Scraping board in India will be caused by friction heat at the same time, make its temperature hardness change, should pay attention to when choosing scraper material selection is not easy to deformation of the heated material usually scraper hardness should choose in the shore hardness of 60 to 90 degrees.
       (2) the wearability of scraper Scraper, direct contact with silk screen plate because it is every time scrapping printing have friction (in silkscreen print run long up to tens of thousands of).Therefore require scraper has good abrasion resistance, lubricity and certain mechanical strength, so when scrapping printing can reduce friction, to ensure that the service life of scraper.
      (3) the solvent resistance of scraper scraper in use to contact all kinds of printing ink and solvent, such as ethanol, gasoline, etc.In all kinds of rubber material to solvent affinity is not the same, or solvent ink scraper in contact have varying degrees of change, to return to the common is scraper hardness change, contact solvent volume expansion after deformation.If scraper expansion, can reduce the edge of the scraper, precision press will leak ink uneven and affect printing quality.Generally considered high hardness rubber crosslinking density is big, printing ink and solvent molecules are difficult to into rubber molecules, so expansion coefficient is small.Can consider when choose scraper in as far as possible under the premise of meet the requirements of printing, in order to make deformation is reduced to a minimum, can choose high hardness rubber scraper.
  Home About UsProduct Special promotions Case  News  Train  Message  Contact Us
Links: Huai'an OLAT Pad PrintingScreenPrinting(Northern distribution)
Copyright::OLAT PRINTING MACHINERY INDUSTRY CO.,LTD.
ADD:No.9?Zhangji?Road?Economic?Development?Zone,?Kunshan,?Jiangsu?Province
TEL:0512-57068888 FAX:0512-57068800
国产麻豆精品久久一二三_国产成年女人免费一区二区三区_人妻AV中出无码内射_亚洲日本韩国不卡中文字幕