FEATURES OF PAPER AND PAPERBOARD USED FOR INDUSTRIAL PACKAGING

 

Roll paper

"A paper machine with a glossy surface on one side, which is made with a Yankee paper machine, has excellent whiteness, surface gloss, and smoothness, and has good printability" (JIS). It is a single-gloss paper that is classified into pure white rolls, S rolls, and G rolls according to the raw material, and is glossed with a Yankee paper machine with a gloss dryer with a diameter of 5 to 6 m. The front surface has a glaring luster, the back surface is rough, and the density is low. It is used for wrapping paper for department stores, sachets, leaflets, lining of cartons, etc., but it is also used for lightweight industrial wrapping. it look like custom packaging

Kraft paper

A general term for strong paper made from Kraft pulp, including Ryosara kraft paper, streaked kraft paper, and single-gloss kraft paper "(JIS). Made from softwood, it is brown, has a slightly rough surface, and is inferior in printability and appearance, but has strong paper strength. It ranges from thin (40 g / ㎡) to thick (120 g / ㎡), and is used for heavy bags for industrial packaging, gum tape, paper bags, and base paper for corrugated cardboard.

Oil paper

Oil-treated base paper made from chemical pulp, used for packaging foods, luxury items, machinery, etc.

Polyethylene processed paper

It is often done by the extruder method. Most of the PE types are low-density PE, but linear low-density PE may be used to increase resistance. PE-processed paper has excellent water resistance, moisture resistance, cold resistance, extensibility, chemical resistance, transparency, heat sealability, oil resistance, and the like. Moreover, since the permeation of oxygen and carbon dioxide gas is freely controlled by making a small hole, it is suitable for packaging vegetables and the like.

Manila ball

The surface layer is made from bleached chemical pulp, and the middle and back layers are made from mechanical pulp, unbleached chemical pulp, and deinked recycled paper. Currently, it is changing to high-grade white paperboard that uses bleached chemical pulp as the main raw material, but high-grade white paperboard is also classified as a Manila ball.

White ball

"The surface layer is bleached chemical pulp, the bottom layer is generally deinked newspaper waste paper, and the middle and back layers are paperboard using waste paper such as newspapers and magazines" (JIS). White-lined chips, which make up the majority of paper containers in Japan, use low-grade recycled paper for the middle and back layers. It is a collection of paperboard with a basis weight of 300-600 g / ㎡, and is used for relatively large paper containers.

Yellow paperboard

Paperboard manufactured mainly from used paper, lime milk-melted straw, etc., used for inexpensive assembly boxes, covers, paper tubes, etc., also called yellow balls. (2) Usually yellow, made only from unbleached straw pulp. Paper or paperboard (JIS) ". It used to be colored paperboard derived from straw wood, but now it is in the same category as corrugated cardboard and used newspaper chip balls, and has a basis weight of 400 g / ㎡, and is widely used for pasting boxes, partitions, and mounts.