柔印機印刷的彈性和硬度性能介紹:
1.柔印機橡膠版的硬度是由加硫硬化時的溫度、壓力、加jia壓ya時shi間jian等deng決jue定ding的de,可ke根gen據ju要yao求qiu確que定ding印yin版ban硬ying度du。感gan光guang性xing樹shu脂zhi版ban的de硬ying度du取qu決jue於yu光guang聚ju合he物wu的de硬ying度du,可ke以yi用yong加jia入ru硬ying度du控kong製zhi劑ji的de辦ban法fa加jia以yi控kong製zhi。彈dan性xing是shi硬ying度du的de反fan指zhi標biao,即ji硬ying度du越yue高gao,彈dan性xing越yue小xiao。
2.不bu同tong的de承cheng印yin物wu對dui印yin版ban的de硬ying度du要yao求qiu不bu同tong。印yin版ban彈dan性xing大da,則ze與yu承cheng印yin物wu的de接jie觸chu均jun勻勻,印yin刷shua出chu的de墨mo色se也ye均jun勻yun,但dan圖tu像xiang的de層ceng次ci再zai現xian性xing較jiao差cha,且qie網wang點dian擴kuo大da較jiao為wei顯xian著zhu。承cheng印yin物wu表biao麵mian光guang潔jie的de,印yin版ban彈dan性xing要yao小xiao;表麵粗糙的,印版彈性要大。印刷實地或文字,印版彈性應較大;印刷網點或細線條,印版彈性應較小。
3.柔rou印yin機ji印yin版ban的de彈dan性xing在zai印yin刷shua過guo程cheng中zhong會hui有you一yi定ding程cheng度du的de變bian化hua,即ji在zai經jing過guo高gao速su度du和he長chang時shi間jian連lian續xu印yin刷shua後hou,印yin版ban彈dan性xing降jiang低di,回hui彈dan不bu足zu,為wei避bi免mian印yin版ban彈dan性xing降jiang低di過guo多duo,要yao求qiu印yin刷shua時shi保bao持chi輕qing印yin壓ya狀zhuang態tai。
