Square Bottom Kraft Paper Valve Pocket

The advantages of the square bottom Valve Bag are very obvious. First of all, it has good strength. The general kraft Paper Bag uses sewing thread to sew and seal the bottom. A stress effect is produced, which reduces the strength of the woven bag at the sewing place (only 2/3 of the strength of the bag body) and is easy to break, while the square bottom valve pocket uses an adhesive to bond the upper and lower bottoms to the two layers of woven cloth. The strength can be more than twice that of the woven bag body.

Kraft Paper Valve Bag Description

Width: 250mm--750mm
Bags of concrete custom Gusset: As customer's demand
Weight/Sq.m: 70-80gsm/Sq.m
type of paper: 70-80gsm craft paper
Color: white or brown
Number of layers: According to requirement
Measures of the bag: Length As customer's demand
Bags of cement design: according to customer's artwork or design
Print: lexicographic printing ,one side or both side,1-8 colors to choose
Perforation: According to requirement
Top of the bag: Stuck with automatic valve
Bottom of the bag: Stuck
Usage Widely used for Powders, granular, fertilizers, sugar, salt, seed, cereal, animal feed, coffee beans, plastic resins, powder milk, contraction ceramic ect.