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Mills often bleach fabric using caustic agents such as hydrogen peroxide. Once bleached, the fabric is typically dyed, but the presence of peroxide may inhibit dyeing. Chemicals and wash boxes may be used to get the peroxide out, but this can require additional time and increase the manufacturing costs.
Catalase, an enzyme which decomposes peroxide, is used to remove peroxide from fabrics quickly and efficiently. Because catalase is a biological product, it does not require excessive washing between the bleaching and dyeing stages. Dyadic offers a catalase which is available in two different concentrations.
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Amylase, an enzyme used to remove starch added to the yarn during the warp process, called warp sizing, to prevent breakage of the yarn during the weaving process. This size coating must be removed before the finishing process can begin.
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ROCKSOFT™ Dyasize P2100 - is a mid-temperature alpha-amylase enzyme powder suitable for dilution to the desired strength.
PIB (.pdf file 121 KB)
When working with cotton fabric, mills must also be equipped to remove the waxes and pectins that naturally grow along with the cotton fiber. Typically, this is done with a caustic agent at a high pH and temperature, requiring significant energy to get the waxes and pectins hot enough to remove. However, Dyadic’s pectinase can be used at much lower temperatures to remove the pectins from the fabric.
Additionally, using pectinase in combination with simple detergents – a process known as bioscouring – creates an effective alternative to caustic scouring. The use of bioscouring can reduce cycle times, is more environmentally friendly, and can eliminate the need for bleaching when dyeing dark shades. Dyadic has developed an innovative product called BSP, an enzyme blend for use in bioscouring.
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