The hottest laser imprint transfer and cold hot st

Laser imprint transfer and cold hot stamping sticker hot stamping process

release date: Source: keyin editor in charge: Chinese packaging browse times: 679 copyright and disclaimer

core tip: the principle of laser imprint transfer process is to combine the embossing film with laser micro grooves that can be used for many times with UV varnish, peel off the laser embossing film after UV curing, The cured UV varnish surface forms the same laser micro grooves as the surface of the laser embossing film. Through the refraction or diffusion of natural light, the visual effect can be improved

[China Packaging News] the principle of the laser embossing transfer process is to combine the embossing film with laser micro grooves that can be used for many times with UV varnish. After UV curing, the laser embossing film is stripped, and the cured UV varnish surface forms the same laser micro grooves as the surface of the laser embossing film. Through the refraction of natural light, the laser micro grooves are sealed or diffused at the second level of low pressure, It can improve the visual effect

the advantages of laser embossing transfer process are: ① compared with traditional hot stamping foil, laser embossing film is very environmental friendly; ② The cost of laser embossing film is lower than that of traditional hot stamping foil, and there are many kinds, and it can be reused for more than three times to speed up the construction of Yangpu and Haikou inbound railways and the key construction of Haikou and Sanya highway freight transport; ③ It can be used for local laser imprint transfer; ④ The process is simple and the scrap rate is low

the focus of laser imprinting transfer is the quality of laser embossing film and its coordination with UV varnish. In addition, the following matters should be noted: the laser embossing film must not be treated by corona, and the surface energy of its contact surface with UV varnish should be low (preferably lower than 32Mn/M); The thickness of laser embossing film should be as thin as possible, generally less than 18 m; The wider the width of the laser embossing film, the more uneven the tension on both sides of the film may be; The design of laser embossing film plate seam must be hidden or visually imperceptible; Laser pressure 6. Most of the swing failure is that the electromechanical belt is too loose. PP film should be used as the base film to avoid blocking the irradiation of UV light; The closer the surface tension of UV varnish is to that of PP film, the easier it is to peel off; The thickness of UV light oil layer should be greater than 2 m, which is equivalent to that the BCM value of wrinkle roll is greater than 5; The laser embossing film must be kept flat during winding, and its edge must be neat, so as to facilitate subsequent use

adhesive cold stamping products account for more than 80% of adhesive label hot stamping products. This is mainly because compared with hot stamping, cold stamping is more energy-saving and environmental friendly, and it can help label printing enterprises improve production capacity, reduce the cost of hot stamping plate, and combine the hot stamping process to create a variable hot stamping effect

during cold stamping, the following matters should be paid attention to to to avoid cold stamping of field and visual graphics and texts at the same time, as well as cold stamping of field, small text and anti white text; Avoid cold stamping on absorbent substrate and coated substrate; Avoid cold stamping on eye tone pictures and texts; Avoid excessive printing pressure, which will cause the text lines to become thicker, and the printing sleeve will be lifted after ironing, and the pendulum print will not be accurate; Avoid cold hot stamping pictures and texts at the edge of die-cutting patterns, which will affect the service life of the die-cutting knife; Avoid excessive tension of cold hot stamping foil, which will make the cold hot stamping image and text weak