BF stands for "Burst Factor" in kraft paper. It is a measurement that represents the strength of the paper and indicates how much pressure or force it can withstand before bursting. The higher the BF value, the stronger the kraft paper.
bs of the paperx1000/gsm of the paper=bf of the paper
yar, BF means Burst factor it is a measurement used for testing the paper strength. an equipment is used namely BF tester by which it is tested. If higher the BF strength will be high. How testing : mechanism is that we are passing some kind of air through the whole on which paper is put and check in what preassure the paper brokes and multiples the value with one squr metre of the said paper. the value will be BF. For corrugating industry strength of box is very much related with BF and GSM (one sqr meter weight) variety of BF & GSM combination used for strengthing the boxes. suresh from Sree Sakthi PAper mills LTd Manufatures of KRaft Paper 14 BF to 40 BF in a range of 80 Gsm to 450 Gsm. and Dublex Colour boards with variety of colours(shades)
Kraft paper.
According to CK PAPER MART, there are different types of Kraft paper manufactured by Paper Mills, such as Virgin Kraft, Bleach Kraft, Poly Craft, Absorbent Kraft Paper, etc. and these kraft paper are used for different types of packaging materials such as carry bags, corrugated boxes etc.
From paper. More specific is unbleached or brown kraft paper. == ==
Ring crush test of kraft paper
To improve the burst factor of craft paper, you can consider increasing the thickness or weight of the paper. Additionally, using higher quality fibers or adding a coating can enhance the paper's strength and toughness. Proper storage and handling to prevent damage and maintaining optimal moisture levels can also help improve burst factor.
Paper suitable for use in craft projects.
One can measure Cobb of kraft paper in lab following TAPPI T441 standard.
A book cover can be made using a Kraft paper bag. A gift bag is also another craft to be made. Paper beads are a very popular craft. Pinatas can also be made with Kraft paper bags.
on kraft paper printing side , we can coat eighter water or solvent based latex to get wet and dry strength.