What is the difference between white envelopes and kraft envelopes

White envelopes and kraft envelopes is the difference between the advantages and materials are different, white envelopes on the writing is more clear, easy to identify the sorting machine; kraft envelopes are more firm, suitable for use in the mail with entrapment registered letters and so on.

White cardboard is all white, pure wood paddle do, both sides including the middle of the laminated, kraft paper, then it is a side of yellow kraft paper, one side of a layer of white paper is pasted on the Oh, tensile strength, folding resistance than the first two to be better.

Envelope kraft paper is divided into white kraft paper and yellow kraft paper. Compared with other materials, kraft envelopes are not only strong and durable, but also its high tensile strength, smoothness is good. Therefore, kraft paper is the ideal material for making envelopes; double-gummed paper surface flat, smooth, high whiteness, if you use double-gummed paper to make envelopes, the color will look better.

Envelope printing specifications

Envelope printing materials commonly used 120g, 140g, 180g double-gummed paper or kraft paper, high-end special paper. In general, the envelope printing is always horizontal, the envelope's flap should be on the right side of the front of the envelope or the upper edge of the international envelope flap should be on the upper edge of the front of the envelope. b6, dl, zl number of domestic envelopes should be selected not less than 80g/m2 of the B class envelope paper.

The general envelope will choose to use 80-120 grams of kraft paper printing, this kind of paper printing price is moderate, printing effect is good, is the best traditional envelope printing paper. Duplex paper paper surface flat, smooth, high whiteness, if you use duplex paper to do the envelope will look better, and the price of duplex paper than white kraft paper made of envelopes cost a lot less.