Kraft Paper (for Rice/Flour Sack)

Compared to all-wood paper, pre-stressed kraft paper improves longitudinal rip and tensile strength in both directions up to 3 times, enhances elongation in both direction up to 6 times, and increases the vertical and lateral tensile energy absorption value up to 8 times. Pre-stressed kraft paper also has an excellent fastness and is extremely strong. This means that rice/flour sacks made using pre-stressed kraft paper will not become easily damaged during drop tests or other impact.

One layer of pre-stressed kraft paper is just as efficient as 4 layers of traditional paper. A rice/flour sack uses only 80g of pre-stressed kraft paper, while ordinary kraft cardboard requires more than 120g. As a result, for the same production amount of flour sacks, pre-stressed kraft paper will reduce production costs by 40% when compared to production with traditional wood pulp paper.

With the use of pre-stressed kraft paper, there is no need for the production of multi-layer paper sacks and paper/plastic compound sacks. Food packaging bags made from pre-stressed kraft paper reduce both labor cost and production costs. They are easier to store, which cuts down on costs in warehouse logistics, bringing incredible economic benefits to flour factories and food manufacturers.

As an environmentally friendly packing material manufacturer, Shanghai ZhiZheng provides customized pre-stressed kraft paper rolls and sheets that are ideal for the production of food packing bags including rice and flour sacks. We can also develop and produce customized packing bags for customers. Please don't hesitate to contact us at any time.

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