How to distinguish the quality of computer jacquard straps? There are various types of woven ribbons in the computer jacquard belt industry, which are widely used in various industries such as clothing, self-adhesive printing, shoe materials, luggage and leather goods, industrial production, agriculture and animal husbandry, military equipment, and road transportation.
In the 1930s, computer jacquard ribbons were all handmade from beautiful picture woven ribbons made from cotton rope and linen woven ribbons made from embroidery needles. The People's Republic of China was officially established, and the raw materials for woven ribbons gradually developed into nylon, polyester, polypropylene fabric, spandex silk, adhesive, etc., resulting in three major production processes: knitted yarn, weaving, and knitted goods. Computer jacquard ribbons are constructed with plain weave fabric, twill fabric, twill fabric, large jacquard ribbons, two-layer, double-layer, tubular, and collaborative structures. Remove the double roots of the warp and weft yarns of two unknown types of ribbons, burn them separately with a lighter, and observe some physical changes during the combustion process to confirm the raw materials of the warp and weft network map. During combustion, observations should be made on the flame, melting conditions, emitted odor, and post combustion ash.
The following are the identification methods for different types of computer jacquard straps by the factory:
Computer jacquard polyester ribbon: It melts and burns near the flame, drips and bubbles, but does not directly continue to burn. It has a taste of hard, round, light, brown to dark gray, and bead like like lettuce.
Polyester webbing: It melts and burns when exposed to flames, and can continue to ignite when dropped and foamed. In rare cases, it has a slightly smoky, sweet, hard, round, black or light brown taste.
Computer jacquard with linen fiber and linen fiber.
Computer jacquard with linen fiber and linen fiber all ignite as soon as they get close to the flame, burning quickly, with a light yellow flame and emitting blue smoke. The difference between the smell released during combustion and the ash after combustion is that the cotton belt emits a paper smell during combustion, while the hemp cotton emits a grass ash smell during combustion; After combustion, cotton contains very little powdered ash, appearing black or dark gray, while hemp cotton causes a small amount of gray white powdery ash.
Computer jacquard with nylon and polyester
Computer jacquard with nylon (polyester), also known as acetate fiber, quickly curls and melts into a milky white gel like substance near the flame. It melts and ignites in the flame, dripping and forming bubbles. When burned, there is no flame, and it is difficult to burn again after leaving the flame, releasing the smell of lettuce. After cooling, the light brown molten substance is not easy to crush. Polyester, also known as polyester fiber fabric, is easy to ignite and shrinks when exposed to flames. When burning, it melts and emits black smoke, forming a light yellow flame that releases a fragrant taste. After burning, the ash turns into a brown lump that can be ground into powder by hand. There are three ways to distinguish the quality of a ribbon:
Computer jacquard strip color deviation detection: This can be observed with the naked eye. The color, texture, and needle edges of the flowers should not be disorderly, but rather have a pure color tone. Burrs: Generally, there are some cotton yarn burrs that can be observed with the naked eye. There should be no serious yarn balls or filaments on both sides of the ribbon and the overlock. Needle detachment: This can be observed with the human eye, and the ribbon should not have needle detachment.
