平版印刷过程中,橡皮布可能产生哪些主要的变形?对印刷质量有何影响?有什么防止的措施和方法?...
Thursday, October 27, 2022
柔性版装版时,印版的弯曲变形量与()无关。A、印版厚度B、印版长度C、版材弹性模量D、印版滚筒半径...
Thursday, July 13, 2023
Friday, October 6, 2023
Friday, December 15, 2023
Tuesday, February 21, 2023
Sunday, September 11, 2022
Tuesday, September 13, 2022
Tuesday, March 28, 2023
油墨乳化过程中,水相体积()%形成W/O或O/W型乳化液。...
Friday, November 4, 2022
印刷滚筒之间的相对位移使网点()。A、扩大B、缩小C、不变D、无...
Friday, December 15, 2023
已知:胶印机三个印刷滚筒为等直径,直径为30cm,测得接触宽度为1.096cm,包衬厚度为0.2cm,包衬的弹性模量E=162N/cm2。求:压印面上的印刷压力。...
Tuesday, November 21, 2023
海德堡计算机印刷控制系统CPC1是()。A、套准控制装置B、质量控制装置C、印刷机控制装置D、印版图像阅读装置...
Wednesday, October 4, 2023
Tuesday, November 21, 2023
胶印中,墨层厚度大,网点()。A、扩大B、缩小C、不变D、不确定...
Friday, December 15, 2023
经过测量得到,原版上网点面积率是70%,印刷品上与原版对应的70%处的网点密度(DR)为0.66,实地密度(DV)为1.25,求该处的网点增大值。...
Sunday, April 14, 2024
以油墨转移率与印刷压力的关系曲线,分析印刷压力大小对印刷质量的影响。...
Friday, October 13, 2023
PS版润湿液中,改善印版润湿性的成分是()。A、柠檬酸B、磷酸C、桃胶D、表面活性剂...
Thursday, November 16, 2023
Sunday, June 18, 2023
Friday, December 15, 2023
Wednesday, April 24, 2024