The kraft paper valve bag, also known as the glued bottom valve bag, is an environmentally friendly packaging container made primarily from high-quality kraft paper. Manufactured using internationally popular production techniques, it ensures both durability and sustainability.
Designed specifically for powdered and granular materials, this bag provides excellent protection and convenient handling during storage and transportation. Its robust construction makes it suitable for a wide range of industrial and civilian packaging applications.
Thanks to its eco-friendly materials and efficient design, the kraft paper valve bag has become a preferred choice for businesses seeking reliable and sustainable packaging solutions.
| Parameter Category | Requirements |
|---|---|
| Material Requirements | Base paper: 100% virgin wood pulp kraft paper, free from impurities and odors. PE film thickness: ≥25 micrometers, compliant with food-grade standards where applicable. |
| Structure & Process | Valve position deviation: ≤3mm. Valve width: 80-100mm (±1mm tolerance). Bag-making requires perfect alignment, reinforced bottom with kraft paper patch, even stitching, and strong bottom glue. |
| Size Accuracy | Standard size tolerance: ±3mm. Custom dimensions adjustable to ensure compatibility with filling equipment and storage space. |
| Performance | 25kg products: withstand three drops from 1.2m height. 50kg products: pass drop test from 0.8m and maintain static load capacity exceeding 50kg. Printing uses environmentally friendly, odorless, fade-resistant ink. |
We serve diverse industries including building materials, chemicals, food processing, feed and agricultural sectors, and various other industries requiring customized packaging solutions.
HUAYUAN Valve Bags: Model number 2500000. Manufactured in Henan Xinxiang, China. Features self-opening valve type and glued valve closure for efficient filling and sealing. Ideal for cement, powders, and granular products with quick and reliable discharge.