Acrylic/modacrylic Both of these fibers were first used as carpet yarns around the late 1940s. They disappeared around 1988 due to the competition from other fibers. In was reintroduced to the market around 1990 in Berber styling. This was done so that people could take advantage of the wool like appearance, hand feel, and the fact that its more spot resistant, much easier to clean, and not damaged in the ways that wool is. You'll also need to look and see if the edge and borders are there in the antique carpet you intend to buy, as the end and edge borders are sometimes lost or even cut out on purpose. Keep in mind that the borders will determine the overall value of your carpet. 4. Keep an eye out for holes and moth attacks that are both common when dealing with antique carpets. High quality vacuums are the best choice, as they get up the most debris. Tip 4 --The proper use of entrance will greatly help to clean off people's shoes and keep most of the tracked soils off the surface of the carpet. You should always use entrance mats outside of your doors and make sure that anyone who enters your home use the mats to help get debris and dirt off of their shoes before they enter. The carpet with the typical household should be cleaned every 12 - 18 months depending on the number of people living there and the amount of traffic that walks on the carpet. Professional carpet cleaners It is in your best interest to use professional cleaners simply because their experience will enable them to do a much better job than you can do yourself. The carpet beetles are quite annoying, as they feed on wool, hair, hides, fur, grain, seeds, and flour. If the carpet is infested bad, you professional cleaner is the way to go. Bleeding or crocking Bleeding of the carpet is the loss or transfer of the color from one section to another. Good underlayments can help to prevent bleeding to a certain degree. They are produced by electrostatic attraction of individual fibers that form a unique carpet with extremely high durability. You can normally find needlefelt carpet in the contract market such as in hotels or other places where there is always going to be a lot of traffic. Flatweave The flatweave carpet is created by interlocking warp and weft threads.