Fiber protection

In fine wool such as that obtained from merino sheep, the cuticle is normally one cell thick (20 x 30 x 0.5 mm, approximate dimensions) and usually constitutes about 10% by weight of the total fiber. Sections of cuticle cells show an internal series of laminations (Figs. 1 and 2) comprising outer sulfur-rich bands known as the exocuticle and inner regions of lower sulfur content called the endocuticle (13). On the exposed surface of cuticle cells, a membrane-like proteinaceous band (epicuticle) and a unique hpid component form a hydrophobic resistant barrier (14). These hpid and protein components are the functional moieties of the fiber surface and are important in fiber protection and textile processing (15). 

Faser-pflanze, /. fiber plant, textile plant, -platte, /. fiber board, -richtung, /. direction of the fiber or grain, -rohstoff, m. fibrous raw material, -salz, n. fibrous salt, -schutz-mittel, n. fiber-protecting agent. 

Figure 21. Demonstration of high strength and sharp distribution of tenacity of silica fibers protected and controlled compared to those from conventional...

L. Hou, G. Shen and H. K. Lee, Automated hollow fiber-protected dynamic liquid-phase microextraction of pesticides for gas chromatography-mass spectrometric analysis. Journal of Chromatography A, 2003, 985(1-2), 107-116. 

Shen, G. and H.K. Lee (2002). Hollow fiber-protected liquid-phase microextraction of triazine herbicides. Anal. Chem., 74(3) 648-654. 

Ouyang, G. and J. Pawliszyn. 2006. Kinetic calibration for automated hollow fiber-protected liquid-... 

In the textile industry, because of its intense, but nevertheless fiber protecting, bleaching effect. Sodium Chlorite HOECHST is used for bleaching nearly all natural and synthetic fibers. The effects on synthetic fibers, e.g., polyamide, polyester, and polyacrylonitrile are extremely good and cannot be obtained by other bleaching products which are used in the textile industry. 

CNC CHLORITE is a modified sodium chlorite product designed to give the excellent bleaching with fiber protection that is normal for sodium chlorite but with the added advantage of anti-corrosion properties to stainless steels and reduced hazards in handling. 

Provides removal of metallic Ions and enhances fiber protection In caustic pre-treatments. Blend of chelates and reducing agents. 

This is somewhat complicated and expensive. Nevertheless, the usage of chlorite in the bleaching of textiles and the treatment of water and of wastewater is increasing due to certain advantages (e.g. fiber-protecting mild oxidant, safer handling of the chemicals, no decomposition... 

Lupton, J.R. 2000. Is fiber protective against colon cancer Where the research is leading us, Nutrition, 16 558-561. 

Use Heating pads (combined with glass fiber), protection clothing, polyester and epoxy composites for jet engine components, spacecraft, compressor blades, airframe structure, electrodes for sparkhardening metals, flame-proof textile products, engineering thermoplastics. 

Carbon fiber Phenoxy XPS Fiber protected against oxidation by coating 47... 

Abrasion resistance and impact strength are improved simultaneously when a combination of beads and fibers is used. In these composites, glass beads dissipate energy and fibers protect beads Irom abrasion. ... 

The stress-decay data given In Figure 2 for poly[plvalolactone-b-lsoprene-b-plvalolactone)-g-plvalolactone] was obtained on fibers protected with large amounts of antioxidant. If air autooxldatlon Is an Important factor In strength loss, use of a polymer backbone... 

To exhibit strong fabric care properties (fiber protection, looks new longer). 

FIG. 12.6 Cotton fiber protection by a clay-based wash cycle fabric softener after 40 washes at 40°C in hard water (European washer). Top washed with a clay-based softergent bottom washed with a regular detergent. 

GardoL [Apollo] Dye fixatives, fiber protectants for textiles. 

Chen P-S, Huang S-D. Determination of ethoprop, diazinon, disulfoton and fenthion using dynamic hollow fiber-protected liquid-phase microextraction coupled with gas chromatogra-phy-mass spectrometry. Talanta 2006 69 669-675. 

Shen G, Lee HK. HoUow fiber-protected liquid phase microex-traction of tiiazine herbicides. Anal Chem 2002 74 648-654. 

FRPs are composite materials made of a polymer matrix reinforced with fibers. In comparison to concrete (that is also a composite material), the fibers may carry and transfer both compressive and tensile stresses. The polymer matrix bonds these fibers together, prevents budding of the fibers in compression, transfers stresses between discontinuous fibers, protects the fibers from environmental impact, and maintains the overall form of the resulting composite material. 

---