Which printing technology is used mainly for stamp printing?

Stamp printing can use a variety of printing techniques. What kind of printing technology is chosen by each country depends mainly on the existing press configuration and its artistic design. Commonly used printing techniques include offset printing, indirect embossing, gravure printing, gravure printing (used in a particularly large amount), embossing (which is almost no longer used at present), and the integrated application of these technologies.

Because this type of Envelope Paper Bag is widely used in production and life, it is not only used to hold letters. Paper bags such as red envelope bags, CD cases, button bags, and glasses bags, as well as many forms of export abroad, are all non-standard.

Envelope Paper Bag style:

Chinese envelope: short side opening;

Western-style envelope(Western Envelope Paper Bag): long side opening;

Diamond envelopes: mainly used for greeting cards;

Portfolio: 2-4cm from the edge;

Envelopes with windows: such as bank statement envelopes, CD bags, etc.;

Special computer envelopes: mainly for the convenience of machine identification, make corresponding round holes on the envelopes, etc.

Envelope paper bag sealing form:

No plastic sealed envelope: the ordinary form of domestic envelopes;

Saliva Gel Sealed Envelopes: Common forms of foreign envelopes, sealed with saliva gel;

Self-adhesive sealed envelopes: Sealed with self-adhesive;

Self-adhesively-sealed envelopes (off-type paper envelopes): The seals are coated with stickers, and release paper is attached.

Envelope paper bag paper: generally use 80g-150g double-tape paper, kraft paper (natural kraft paper, white kraft paper), according to different functions, but also useful art paper, coated paper and so on.

The operation of the envelope machine requires that the paper must have a high tensile strength and tear to avoid paper breakage and cracking. The best use of offset paper is because the offset paper absorbs ink.

Envelope Paper Bag

Envelope Paper Bag,Waterproof Envelope Bag,Self-sealing Envelope Bags,Kraft Envelope Paper Bag

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