Types Of Aramid Cloth

1. Aramid fiber untwisted roving fabric, mainly made of aramid 1414 filaments. Untwisted roving is made of parallel raw filaments or parallel monofilaments. The monofilament diameter of aramid fiber used in the production of roving ranges from 5 to 15μm. The number of untwisted roving ranges from 100 to 8000 (tex). Untwisted roving can be directly used in certain composite material forming methods, such as special textiles, sheet prepreg, pipe winding, profile pultrusion and other processes. The untwisted yarn can be woven into untwisted roving cloth and special aramid fabric due to its uniform tension, which is used in special industries such as aerospace, national defense, and military industry.
There are mainly low-weight aramid plain fabrics, one of the bulletproof fabrics; aramid non-weft fabrics, namely UD bulletproof fabrics; aramid unidirectional fabrics, which are used in situations where high strength is required in a single direction of 0 degrees in the warp direction or 90 degrees in the weft direction, such as structural repair, earthquake reinforcement, building reinforcement, bridge reinforcement, etc.; decorative aramid fabrics can also be woven into twill aramid fabrics and colored aramid fabrics.
2. Aramid non-woven fabrics, felt sheets, aramid paper, used for insulation and heat preservation
3. Aramid fiber twisted gauze, aramid fabrics, aramid fabrics, mainly made of aramid 1313 or a small amount of 1414 staple fibers
(1) Aramid fiber twisted gauze mainly refers to various fabrics woven with aramid 1313 or a small amount of 1414 staple fiber yarns twisted. It is mainly used in fire retardant and other fields. The characteristics of the fabric are determined by the fiber properties, warp and weft density, yarn structure and weave texture. The warp and weft density are determined by the yarn structure and weave texture. The density of warp and weft plus the yarn structure determine the physical properties of the fabric, such as weight, thickness and breaking strength. There are five basic weaves: plain, twill, satin, rib and basket weave.
(2) Aramid twisted webbing is divided into woven edge tape (smooth edge tape) and non-woven edge tape (raw edge tape). The main weaving method is plain weave. It is used to manufacture high-strength electrical equipment parts with good dielectric properties and automotive hoses.
(3) Aramid cord fabric, that is, twisted aramid unidirectional fabric dipped in glue, is characterized by high strength in the warp 0 degree or weft 90 degree direction. Among them, the warp unidirectional fabric is a four-warp broken satin or long-axis satin fabric woven with coarse warp yarn and fine weft yarn, which is used for aircraft tires and high-end automobile tires.
(4) Three-dimensional fabric Three-dimensional fabric is relative to flat fabric. Its structural characteristics have developed from one-dimensional and two-dimensional to three-dimensional, so that the composite material with this as the reinforcement has good integrity and contouring, which greatly improves the interlaminar shear strength and damage tolerance of the composite material. It has been developed with the special needs of aerospace, aviation, weapons, ships and other departments, and its application has been expanded to automobiles, sports equipment, medical equipment and other departments. There are five main categories: woven three-dimensional fabrics, knitted three-dimensional fabrics, orthogonal and non-orthogonal non-woven three-dimensional fabrics, three-dimensional woven fabrics and other forms of three-dimensional fabrics. The shapes of three-dimensional fabrics include blocks, columns, tubes, hollow truncated cones and variable thickness special-shaped cross-sections.
(5) Special-shaped fabrics The shape of special-shaped fabrics is very similar to the shape of the product it is to reinforce, and must be woven on a special loom. Symmetrical special-shaped fabrics include: round caps, cones, caps, dumbbell-shaped fabrics, etc., and can also be made into asymmetric shapes such as boxes and hulls.
(6) Grooved core fabrics Grooved core fabrics are composed of two layers of parallel fabrics connected by longitudinal vertical strips. The cross-sectional shape can be triangular or rectangular.
(7) Stitched fabrics Also known as knitted felt or woven felt, it is different from ordinary fabrics and felt in the usual sense. The most typical stitch-woven fabric is a layer of warp yarn and a layer of weft yarn overlapped together, and the warp yarn and the weft yarn are woven together by stitching to form a fabric.
3. Combined aramid fabric
Aramid composite fabric that combines aramid felt, aramid roving fabric and aramid roving in a certain order.