When you have a complaint on a product that you think is a manufacturing defect, do not send a sample of the product to the manufacturer to test for a defect. This is like letting the fox guard the hen house. The other day we received an email that had photos of a square patterned Berber carpet consisting of high and low loops. The yarns in the high loops of the pattern were all fuzzing and stringy which begged and answer to the question, “What’s wrong with this carpet?” To find out the dealer sent an unused sample of the carpet to the manufacturer. The response was that the carpet was not defective and that the bundle wrap and encapsulation of the yarn and fiber were upwards of 90%. This would be a first for this type of carpet because polypropylene Berbers with large yarn, which this was, are virtually impossible to get those kinds of numbers on. Not that it can’t be done, it isn’t. It would require careful penetration of richly compounded latex, with a low filler load, a specific viscosity and slower line speeds. This ain’t gonna happen on this type of product.
When this type of carpet is disassembled, and you can do this yourself by pulling a yarn out, just look to see if there’s latex penetrating into the fiber that has that little bead of hard latex on it – that’s the yarn bundle. Then pull the yarn back at the “bundle” and carefully remove the individual filaments that make up the yarn. You’ll be able to see if there’s latex on them. If there is no latex on the free filaments pulled from the yarn then there’s no latex penetration or fiber lock. You can determine a percentage of fiber lock based on this. The yarn bundle, if it doesn’t go all the way around the yarn is not 100% either. However, take into consideration the amount of yarn fastened around the secondary backing that won’t get latex on it which physically prevents it from being 100%. If fiber is not anchored in the yarn it will result in filament slippage which is the reason you’ll see all that extended fiber on the surface. This isn’t a test you have to be a genius to conduct. Common sense will tell you if 90% or less of the fiber is anchored into the yarn bundle. Just so you’re aware, tuft bind has nothing to do with filament slippage. They’re two different things.
Another tip is that virtually no flooring manufacturer has the technical services department to conduct this type of test, simple as it is. If you want to know if there’s something wrong with any flooring product you have a complaint on, whether carpet, vinyl, wood, laminate, cork or ceramic, you have to send it to a certified lab. There are actual standard tests to check the structural integrity of products, colorfastness, flexibility, dimensional stability, etc. to determine if the product is defective or not. This being said, don’t expect the results to liberate you from liability. Very often we find that the product is fine and the problem is it was oversold.
If you want to test a product and find out for sure whether or not there is really something wrong with it causing a problem, you can send it to us. We can have the product tested in the industry’s best testing lab and then interpret the results. The lab can furnish the test results but they don’t, none of them do, interpret the findings. This is a more elaborate undertaking but you’ll know whether or not the product is the problem or something else.
If you need help with anything like this, contact us. You may not get the answer you want but you’ll get the right answer and you’ll know why you have a problem so you can avoid it in the future.
Author: Lewis G. Migliore
LGM and Associates – The Floorcovering Experts