Flat bag, also named three side seal bag, because it sealed the three sides,and only leaving only one opening for users to put in the products. The flat bag is the most common and simplest bag type. The air tightness of the flat packaging bag is the best, and it is the only type that can be used as vacuum bag.
Three-side seal packaging bags are generally used to pack sheet products, granular products, stationery products, and block products.
Features of three-side seal:
1. Three-side seal is the simplest packaging bag, economical
2. The three-side seal occupies the least space and is convenient to carry out
3. The best air tightness, the only bag type that can be used for vacuum bag
4. With hanging holes, it can be directly hung on the shelf for easy display
Kraft paper is made of kraft pulp, usually is light brown, cream or white color. It is flexible and strong, has high burst resistance, can withstand greater tension and pressure, is a good material for packaging. In addition, because kraft paper is eco-friendly and recyclable, and beautiful, it is now more and more popular and promoted.
PET+KRAFT PAPER+PE: Used for normal goods,and glossy surface;
BOPP+KRAFT PAPER+PE:Used for normal goods,and matt surface;
PET+KRAFT PAPER+VMPET+PE:Used for the the goods need avoid lighting.
PET+KRAFT PAPER+AL+PE:Used for the goods need strictly block the lighting.
Printing, 9-color high-speed gravure printing machine, the maximum roll width can reach 1.25 meters. A 9-color gravure printing machine means that there are 9 ink tanks. The ordinary color can be superimposed with four colors of red, yellow, cyan and black. If the color requirements are stricter, or when printing on a large area background color, you need to use spot colors.
Laminating, our company currently has solvent-free laminating machine and solvent laminating machine, normally we use solvent laminating machine first spay the water-soluble glue on the back of printed layer and laminated with other layers.
Drying: Then put laminated roll in a constant temperature dryer for drying and curing to make the lamination stronger and eliminate the smell.
Inspection:Use computer to inspect the laminated roll,and use black label mark the unqualified point,and picked up the completed piece which with black label.
Cutting: Cut the laminated roll into needed width,
Bag making: fold and seal the bag into flat bag.
The flat paper bag is suitable for various kinds of nuts,snacks,tea,fish food ,pet food etc.
Flat paper bag is a good choice for tea, and some client need to block the light, then we will add a aluminizing layer to block the moisture, UV light and oxygen.
This is a nut flat paper bag,it’s eye-catching with the glossy brand which is golden stamped.The golden stamp can highlight the brand and catch the customer’s eye.And with the hang hole ,it can be hanged on the shelf, better for displaying.And the circle clear window to show what is exactly inside.
This flat paper bag is with a matt clear window, which can show the goods inside directly, then the customer can pick it out easily,and matt window is more top grade and enhance the brand grade.
This bag is a cooked chicken flat paper bag, the paper bag reduce the greasy sense of the food, and with hang hole can help hang in the shelf, and better for display.
And dried food also like use the flat paper bag,and white paper is a good choice,the white paper bag is more beautiful and clean.
This is a grain flat paper pouch,the shaped window make the artwork vivid, and catch the customer’s eye.
To load snack,candy and souger ,flat paper bag is more convenient, easy to carry out, and with a tear notch ,the customer can open the packing