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Carpet made from nylon fibers is a popular floor covering for both residential and commercial use. Such carpet is relatively inexpensive and offers a desirable combination of qualities, such as durability, aesthetics, comfort, safety, warmth and quietness. Also, it is available in a wide variety of attractive colours, patterns and textures. However, nylon fibers are severely and permanently stained by certain artificial and natural colorants present in common household items, e.g. like fruit juices and other soft drink beverages, and thus carpet made from nylon fibers will retain permanent stains, after spilling of such beverages. 

To avoid such staining the nylon fibers are coated, preferably during the spin finish process, with chemical compounds, to provide fibers having a stain resistance. 

Such fibers are particularly useful for providing stain resistant carpets. Such carpets can withstand exposure to massive spills of substances containing acid dye colorants, such as red wines and soft drinks, for long periods of time without staining.

Partial loss of the stain resistance characteristics of the nylon fibers coated with the “stain blocking” compound can occur during normal processing of the fibers into dyed carpet. For example, conventional heat setting of carpet yarns made from fibers of this invention utilizing conditions of predominantly wet heat (saturated steam) opens up the structure of the fibers and causes the fibers to be less stain resistant than corresponding fibers which are heat set utilizing conditions of predominantly dry heat such as is used with “Power-Heat-Set” heat setting equipment.

Therefore, heat setting your nylon carpet yarn coated with “stain blocking” compounds with Power-Heat-Set heat setting equipment will result in excellent quality of your stain resistant carpets.

You also achieve excellent quality for carpets made out of polyproplylene. Carpets with this seal are: colourfast, stain resistant, anti-microbial, anti-allergenic and are not normally affected by insects, mould or mildew. An equal mixture of clear household bleach and water removes most stains.