Carpet yarn

Successful combination of a chromatographic procedure for separating and isolating additive components with an on-line method for obtaining the IR spectrum enables detailed compositional and structural information to be obtained in a relatively short time frame, as shown in the case of additives in PP [501], and of a plasticiser (DEHP) and an aromatic phenyl phosphate flame retardant in a PVC fabric [502], RPLC-TSP-FTIR with diffuse reflectance detection has been used for dye analysis [512], The HPLC-separated components were deposited as a series of concentrated spots on a moving tape. HPLC-TSP-FTIR has analysed polystyrene samples [513,514], The LC Transform has also been employed for the identification of a stain in carpet yarn [515] and a contaminant in a multiwire cable [516], HPLC-FTIR can be used to maintain consistency of raw materials or to characterise a performance difference. 

Fiber products account for about 15% of polypropene consumption. The products range from continuous filaments for carpeting and rope to melt-blown fibers for nonwoven goods. Specific applications include outdoor carpets, yarns for upholstery and automobile seats, and replacements for canvas in luggage and shoes, disposable goods (diapers, surgical gowns), ropes, and cords. 

This product is a modified quaternary type retarding material found to be especially useful in the dyeing of acrylic fibers with cationic and basic dye-stuffs. This product is quite useful in dyeing carpet yarns to give retarding and leveling. 

Antistatic coning oil fo use on nylon and polyester filament yarns. Most effective on carpet yarns. 

Wet winding lubricant for nylon and polyester carpet yarns. Enhances moisture regain after heatsetting. 

Thermally stable, antistatic lubricant for synthetic and natural fibers and blends. Effective on carpet yarns processed on continuous heatset systems. 

Knit-deknit and tufting lubricant for space dyed nylon carpet yarn. 

Paterson, David, The Colour Printing of Carpet Yarns, London, Scott, Greenwood, 1900. 

Whinfield and Dickson quickly realized that the polymer based on ethylene glycol and terephthalic acid was the best suited for fibers (Figure 11). They did, however, make and describe several other polyesters including poly(butanediol terephthalate) (PBT). Many years later a number of polyester fiber producers became interested in PBT. One producer explained that he was interested in PBT because it made a fiber that resembled nylon. Because nylon was becoming popular as a carpet yarn, and because he was not in the nylon business, he considered PBT a means of competing in carpet yarns. 

About one-third of all the polypropylene consumed in the United States is used to make fibers, for the manufacture of products such as blankets, fabrics, carpets, yarns, fish nets, protective clothing, laundry bags, and ropes. The next largest... 

Bulked continuous filament (BCF) carpet yarns are heavy decitex bundles of fiber that are bulked by passage through a turbulent blast of steam or hot air well above Tg. The turbulence blows the yarn about and entangles the filaments, and then heat sets them into place, giving them a permanent crimp. Polymers like PET do not have very good resilience as carpet fibers, but PTT (Eg = 45°C) lends itself very well to the BCF process and has excellent resilience [38]. 

Greater success was achieved by DuPont who copolymerized, the sodium salt of 5-sulfoisophthalic acid into PET to render the polymer dyeable with cationic (basic) dyes. Basic dyeable PET was successfully launched as Dacron 64 in the form of a low-pill staple product [64]. The presence of the sulfonate groups in the polymer chain also acts as an ionic dipolar cross-link and increases the melt viscosity of the polymer quite markedly. Thus, it is possible to melt-spin polymer with IV 0.56 under normal conditions, giving a low-pill fiber variant. The fiber also has a greater affinity for disperse dyes due to the disruption of the PET structure. Continuing this theme, there are deep dye variant PET fibers, often used in PET carpet yarns, which are copolymers of PET with chain-disrupting copolymer units like polyethylene adipate. They have less crystallinity and a lower Tg. therefore, they may be dyed at the boil without the use of pressure equipment or carrier at the cost of some loss of fiber physical properties. 

Staple lengths may vary from 25 to 150 mm, depending upon the spinning system that is used to convert fiber into spun yarn. The filament denier may vary from approximately 1.2 to 15g/denier (or from 0.13 to 1.7N/tex). Garments intended to have a very soft hand will be constructed of the low-denier fibers because of their low-bending modulus. Most typical acrylic apparel fabrics utilize filament deniers near 3dpf, and some industrial and craftknitting yams use deniers of 5-6. Acrylic carpet yarns are usually made from 15-denier fiber to achieve the required stiffness and wear resistance. 

Uses Detergent for household and industrial formulations rust and corrosion retarder for detergent cone. surfactant in cosmetics wax and floor finishes antistat for acrylic carpet yarn and dry-cleaning deter-... 

In the form of synthetic fibres, its major use is in carpet yarns and in textiles, as woven polyester fabrics used in the home furnishings such as bed and table sheets, curtains and draperies. Industrial polyesters are used in tyre reinforcement, ropes and fabrics for conveyor and safety belts. 

Definition Sodium salt of a complex mixture of esters of phosphoric acid and nonoxynol-6 Properties Anionic Toxicoiogy TSCA listed Uses Detergent for household and industrial formulations rust and corrosion retarder for detergent cone. surfactant in cosmetics wax and floor finishes antistat for acrylic carpet yarn and dry-cleaning detergents emulsion polymerization, paints Trade Name Synonyms Rhodafac LO-529 [Rhodia HPCII http //www.rhodia-hpcii.com] Rhodia HPCII France... 

The polyester fibers have high shrink properties, which make them useful in fiber applications where crimp retention or high bulk is desired. Typical applications are in carpet yarns, hi-loft non-woven fabrics used as interlinings, cushioning media, and filtration media, as well as in specialty yarns for weaving and knitting. The fibers have a lower melting temperature compared to PET, which makes them useful as binder fibers in non-wovens, particularly in combination with PET homopolymer fibers. 

Allanach, D. 1989. The insect resist treatment of carpet yarns using low volume zero pollution technology. International Wool Secretariat (IWS) Development Center Monograph. IWS, West Yorkshire, England. 

This PCT fiber has better resiliency than PET, without compromising high temperature resistance. It successfully competes in the high-end carpet yarn market against nylon, where PET was limited by its relatively lower wear resistance. Recycling of PET bottles has provided a source of low cost resins that are used for carpets in less critical markets. 

Process Control Measurements, Nylon Carpet Yarns. 505... 

For hydrophilic yarns, like nylon66 and nylon6, the differences in the dyeability of the Superba and Suessen heatset yarns can be dramatic. Carpet yarns heatset by continuous processes are susceptible to streakiness due, in part, to (a) the large number of settings and controls that can deviate from standard conditions by operator choice or by normal system fluctuations and (b) the more uniform yarn produced by these systems can present a more perfect background for yarn defects to appear in the carpets. Thus, proper control and monitoring of the major parameters of the heatset process, especially the heatset temperature, is critical to the quality of the flnished carpet. 

Various techniques, such as x-ray diffraction, fiber density, dyeing or dye rate methods, and thermal methods of analysis, used to estimate the heat history and heatset temperature of synthetic yarns are not suitable for routine quality control/process control because of the time and extensive sample preparation required to perform the test. Therefore, NIR methodology offers a simple, rapid, and accurate technique for measuring the heatset temperature of carpet yarns. 

At-Line Measurement of Carpet Yarn Heatset Temperature... 

At-Line/"Pseudo" On-Line Measurement of Tire and Carpet Yarn Moisture and Finish-on-Fiber... 

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