Cross-weaving

U.S. and Tyler standard mesh. Screens are made by taking a metal wire of specific diameter and cross-weaving it to form a screen with specific hole sizes in it. Thus, a 400 mesh screen will pass 37p particles or smaller, but hold up aU those which are larger. A 60 mesh screen will pass up to 250p particles, etc. (U. S. Screen Mesh). This diagram also places and defines the size of most of the particles that we are likely to encounter in the real world. On the left is a comparison of angstroms (A) and microns up to 1 p... 

Matterson, S., 23 July 1985. Vascular grafts with cross-weave patterns. Patent No. US 4,530,113. 

Cross-linking the fibers with radiation lead to durable-stretch fabrics. The fabrics can be made by any process, such as weaving and knitting, and from any combination of cross-linked, heat-resistant olefin elastic and inelastic (hard) fibers, e.g., cotton and wool. These fabrics exhibit excellent chemical resistance (e.g., chlorine or caustic resistance) and durability, that is, they retain their shape and feel (hand) over repeated exposure to processing conditions, such as stone-washing, dye-stripping, and PET-dyeing. 

Many other properties have to be considered, especially for apparel fibres, e.g., moisture absorption, ability to dye, drape, texture, weaving characteristics, etc. Many of the properties are influenced by the cross-section profile of the fibre. Thus cotton and some rayons (an artificial synthetic fibre derived from cellulose) are a hollow round fibre silk has a triangular shape giving it a fine lustre and drape. 

Fabrics. These are characterized by o the weave pattern or crossing scheme of the warp (lengthwise) and weft (perpendicular to the warp) yarns... 

Flexibility of a fiber, i.e. its ability to be bent to an arbitrary radius is one of the important attributes of a fibrous material and worth discussing in some detail. It is easy to visualize that many operations such as weaving, braiding, winding, etc., depend on the ability of a fiber to be bent without breaking. This flexibility is also of great importance in composites because it permits a variety of techniques to be employed for making composites with these fibers. If we treat the fiber as an elastic beam of circular cross-section, then we can easily see that the fiber flexibility corresponds to the ability of the elastic beam to be bent to an... 

Including 4-bromophenol in the phenol-formaldehyde resol system impacts the cross-link density of the cured product. In a systematic study of this copolymer, a comparison was made among the polymers obtained using phenol only, a 9 1 mole ratio of phenol to 4-bromophenol and a 1 1 mole ratio of phenol to 4-bromophenol. Comparisons included measurement of interlaminar shear strength and cone calorimetry tests of composites prepared using these phenolic resins and S2-glass fiber plain weave. 

Some of the solution polymers are cross-linkable, enabling therraoset-like properties, such as solvent resistance, to be obtained. The low solution viscosities characteristics of a solvent system generally contribute toward good coating properties. This can be a disadvantage, however, when a porous or loose weave substrate is to be coated. 

Sample Type of weave Fineness of filament in dtex Cross section of filament Number of filaments in the yarn Fineness of filament yarn in tex Yarn density/ 10 cm Fabric density/8/... 

---