Glazing includes full glazing, local
glazing, gloss glazing, Matt glazing and special coating glazing.
1. According to the relationship between
glazing machine and printing press, glazing can be divided into offline glazing
and online glazing. Off line glazing uses a special glazing machine to polish
the printed matter, that is, printing and glazing are carried out on their own
special equipment. This glazing method is more flexible and convenient, with
less equipment investment, and is more suitable for professional post press
processing manufacturers. However, this glazing method increases the
transportation and transfer work between printing and glazing processes,
resulting in low production efficiency; on-line glazing is direct After the
glazing unit is connected to the printing machine, that is, printing and
glazing are carried out on the same machine with high speed, high production
efficiency and low processing cost, which reduces the handling of printing
materials and overcomes various quality faults caused by powder spraying.
However, on-line glazing has high requirements for glazing technology, glazing
oil, drying device and glazing equipment in China printing.
2. According to glazing method according to
glazing method, glazing can be divided into roller coating and printing
glazing. Roller coating is the most common way of glazing, by the coating
roller will varnish on the surface of the printed matter for full width uniform
coating; printing glazing through the glazing plate will be coated on the
printed matter, so that local glazing can be carried out. Currently commonly
used are gravure glazing, flexo glazing, offset printing and screen
glazing.
3. According to the type of glazing
products, according to the types of glazing products, glazing can be divided
into full format glazing, local glazing, extinction glazing and art glazing,
etc. The main function of full format glazing is to protect the printed matter
and improve the surface gloss of the printed matter. The full format glazing is
generally carried out by roller coating; the partial glazing is generally to
polish the graphic parts that need to be emphasized on the printed matter. The
high gloss picture of the glazing part is compared with the low gloss painting
surface without glazing part, which produces a wonderful artistic effect, Local
glazing using printing glazing method; matting glazing using UV matte oil, and
the effect of ordinary glazing is opposite, it is to reduce the surface gloss
of printed matter, thus producing a special effect, due to high gloss has a
certain degree of stimulation to the human eye, so matting glazing is a more
popular way of glazing; the role of art glazing is to make glazing Product
surface to obtain special artistic effect in China printing, such as the use of UV pearlescent varnish on the
surface of the printed matter, will make the printing surface produce
pearlescent effect, making the print appear noble and elegant.
