Sac en papier kraftest un contenant d'emballage en matériaux composites ou en papier kraft pur. Il est non toxique, insipide, non polluant, à faible émission de carbone et respectueux de l'environnement. Il répond aux normes nationales de protection de l'environnement. Il a une haute résistance et une haute protection de l'environnement. C'est l'un des matériaux d'emballage écologiques les plus populaires au monde. .
Sac en papier krafts are made of wood pulp paper as the base material. The colors are divided into white kraft paper and yellow kraft paper. The paper can be coated with a layer of PP material to play a waterproof role. The strength of the bag can be made from one to six layers according to customer requirements. , Printing and bag making are integrated. The opening and back cover methods are divided into heat sealing, paper sealing and paste bottom.Comment fairesacs en papier kraft
1. Small white sacs en papier kraft. Generally, this kind ofsac en papier kraft is large in quantity and widely used. Many businesses require this kind ofsac en papier kraft to be cheap and durable. Machine operated.
2. The practice of medium-sized sacs en papier kraft. Under normal circumstances, medium-sized sacs en papier kraft are made of sacs en papier kraft made by machine pasting synthetic type and then manually pasting ropes. Because domestic sac en papier kraftl'équipement de formage est limité par la taille de moulage, etsacs en papier kraft The rope attaching machine can only attach the rope of the smaller handbag, so the method ofsac en papier kraft is restricted by the machine. Many bags cannot be completed by the machine alone.
3. Large bags, sacs en papier kraft with reverse heads, thicker yellow sacs en papier kraft, these sacs en papier kraft must be made purely by hand. The production cost of such sacs en papier kraft is relatively high and the quantity will not be large.
