Leather, for thousands of years has been well received by people love, but the leather has long been in brown, black show, with the advent of warm winters , leather fashion requirements become more prominent, and the market for leather printing and other leather products after processing demand more to larger , while the modern textile industry continues to technological progress, but also for the production of strange printed leather provided technical support .
1 leather printing equipment
Leather comes from animals , which determines the leather irregularities. Coupled with leather high prices can not be wasted , so I decided not copy leather textile printing equipment printing equipment . Currently the leather sector of direct printing equipment printing equipment , transfer printing equipment, as well as some auxiliary equipment.
a. direct printing devices : the preferred course is hand lift plate , it has flowers changing fast , wide adaptability , chromatic and easy . However , manual lifting plate for leather printing, the biggest problem is because of the irregularity of the leather caused a lot of waste , jargon called paste side , and finally use the scissors to repair , so the manual lift leather printing plates used in the not much.
Not in front of the most common is the leather printing roller printing machine , developed by the South Korean special leather roller printing machine printing effect is excellent, can print any fine patterns , can be done to maximize the utilization of leather , basically no waste. In addition, plastic drop machine, embossing machine .
b. transfer printing equipment : transfer printing to a printing machine and heat transfer machine, currently abroad with film instead of paper , so the printer can also be a film . Heat transfer machine for different textiles , and it requires pressure, working pressure of 20 ~ 30kg/cm2, usually with oil pressure. Temperature is not high, up to 120 degrees, the normal 80 degrees enough.
c. Auxiliary equipment: leather printing plant auxiliary equipment is the key equipment , he related to the product range, market share.
2 leather printing process
a. First, of course dye printing , dye printing of the biggest advantages is the feeling unaffected. But the leather is not high temperature steaming , so the process can not copy textiles . Abroad range of dyes , mainly 1:2 type metal complex dyes , it is not printed steaming the skin , can be dry , but the high price of these dyes , only common parts of the dye strength of 30% to 50 % , hit deep shade color very troublesome . Textile printing dye selected from a range of dyes, fastness and imported considerable , and the bright colors , the force at high, only slightly less light fastness , printed on the leather to dry , no steaming , washing .
b. followed pigment printing , leather printing in the amount which is the largest class printing. Because gold and silver pigment printing can express , together with the hot film , the product is ever-changing , to the maximum expression of leather noble , gorgeous features. Electrode wear
c. Transfer Printing: transfer printing is the most suitable kind of leather, printing methods , according to the process of dry, wet two ways. Dry transfers , mostly made with hot melt ink printed on release paper or bopp film , hot conditions and then transferred to leather. Wet transfer , a special solution is first sprayed with leather. Then by pressing, the transfer paper with the solution of the dye solution , and then fixed to the leather. Leather transfer printing , is currently the most high-end leather a class printing methods , pattern fineness , visual effects , not the other way comparable . Currently there are factory specializing in the production of such foreign transfer paper , the price of 40 to 50 yuan / m. |
