 |
 BLACK 7 INCH THICK FULL or QUEEN SIZE FUTON MATTRESS FOAM CORE COTTON COVER $126.59 Time Remaining: 27d 12h 2m Buy It Now for only: $126.59 |
 Gold Bond 8 Cotton Futon Mattress with Single Foam Core Black Full $119.00 Time Remaining: 29d 16h 58m Buy It Now for only: $119.00 |
 Brand New 6 inch Thick Cotton Foam Core Futon Mattress Size Full For Sale $199.00 Time Remaining: 20d 6h Buy It Now for only: $199.00 |
 Gold Bond 6 Cotton Futon Mattress with Foam Core Black Full 605Full Black $115.00 Time Remaining: 28d 9h 1m Buy It Now for only: $115.00 |
 Gold Bond 6 Cotton Foam Core Futon Mattress Chair NEW $115.00 Time Remaining: 29d 15h 23m Buy It Now for only: $115.00 |
 Gold Bond 8 Cotton Foam Core Futon Mattress Chair NEW $144.00 Time Remaining: 29d 15h 23m Buy It Now for only: $144.00 |
 Gold Bond 10 Cotton with Double Foam Core Futon Mattress Full 612Full $419.00 Time Remaining: 20d 8h 10m Buy It Now for only: $419.00 |
Son types of spandex and equipment, adaptation of technologies and applications
I. Introduction
Spandex is a development rapidly in recent years, the high elasticity of synthetic fibers, it is a great extension and respond to performance clothing makes adapt better and more comfortable. Bare spandex yarn can be in the form of use, but in most cases, is being transformed into wire core wire exposed, covering the wire, or co-torsion, so that in different proportions with natural fibers, chemical fiber blend in knitted or woven through the formation of multi - different forms of elastic tissue.
II, the type of yarn spandex
In recent years, the son of spandex most widely used are three main forms: the son of basic harmony covering twist the wire, these three kinds of elastic spandex son is deep processed products, their different treatment of the principles of the formation of a wire line style different.
1. Spandex core-spun
As the yarn is a spandex core, the outsourcing of one or more non-elastic staple fiber spun into yarn. Get a feel elastane well core-spun and appearance, with the son of natural fibers for the outsourcing of moisture absorption of fibers, and can be used according to the flexibility of products to choose different values. Core-spun spandex elastic yarn from other notable feature is the state of tension in the wire core wire is not exposed, so the dye effect is good, should do so, including a variety of colors, including products of dark color. And compared to other types of elastic thread, low power base of the wire, the wire resistance is only the simplest equivalent to the son of the same size fibers outsourcing only 80% -90%.
2. Spandex Covered Yarn
Is a spandex as the heart, the filament or by inelastic son of staple fibers in a spiral way spandex stretch of the state to be formed coating elastic thread. Spandex is covered over a hollow spindle with special equipment for the treatment of the entire machine is divided into elastic yarn feeding the heart, stretching and relaxation coated to take, such as three parts. Wire covered elastic and other son is one of the most obvious difference between the nucleus son untwisted.
Spandex covered yarn in the silk and the outsourcing of core-sheath layer of the relationship between the clear layer of the core wire and outsourcing together hold between the degree of harmony was significantly lower than twisted wire core, so that the elasticity is greater the latter two. Covered the state of tension wire exposed the basic phenomenon, it would be inappropriate to make a dark colored product. Touch covered yarn, thread over hard-core-spun, its strong filament layer of sub-contracting or the resistance of the wire, so strong compared with a core-spun son specification high. Covered winding wire for relaxation, according to the use of their participation rate is generally 60% -95%, which is different Hop-core wire twisting, weaving process parameters for more impact.
3. String
Will be set aside while spandex the other two inelastic torsion son mixes, and more generally the installation of a special power of son products on the ring twister. Son or spun spandex filament with a variety of stretching combined with the production of torsion, and are suitable the production of small lots of many varieties, and even a tornado can simultaneously process several varieties. In the state of tension, son and other son spandex wrap around each other between the relations, and thus a state of son in spandex color yarn tension exposed could easily lead to the color of colored flowers, products not so dark. Spandex is combined with the twister's force is equal to the inelastic yarn with powerful, it is more spandex core-spun yarns with high strength requirements. All twister in spandex spandex with other non-elastic thread holds together have less between spandex core-spun, reflected in the spandex core-spun yarns is higher than the degree of shrinkage, it has combined the flexibility of the higher core spun yarn-twister.
3, production son spun elastane core editing equipment flamed and focus techniques
1. Spandex core-spun method for changing over equipment
Spandex core-spun yarn on a spinning generally for the production of slub yarn, slub yarn device must be added, but also to transform the existing spinning machine. In stabilizing the speed of roller before at the same time, after the adoption of roll shift to achieve the goal of a bamboo, which is mentioned in front of the strand of wire time production methods of bamboo.
To stabilize the product quality, the first roller gear near the addition of a sensor switching, control the speed of front roller, for mechanical reasons, the range of 5% fluctuation in the actuator can be adjusted by the weight of the irregularity of the wire. Spinning the front, the rear rack column to double column for installation over the body of elastane yarn directors, which can be changed only one column to two columns, the column back because of the location too small, the wire dual column of shelf support transformation in the Centre Block careful drilling, to recreate the bit column will not affect the strength of demand.
If hair spinning department of space constraints, can not install support spandex gear, you can see the mouth of the hairdryer retain the principle of the hair dryer truncated, re-welded back of the case. In line with the seat width Situo spandex, the installation of a support, to facilitate adjustment of the front roller chain, so that the seat of the roller chain can be adjusted freely in the horizontal direction, and sometimes need to re-processed according to the width of the handle of the cradle spandex wheel support custom wire, so that the guide wire with the right wheel and cradle.
Equipment modification, because cotton fibers coated with polyurethane, the original use of the pressure from the rolls of leather due to the higher hardness does not open, disk head spitting phenomenon, the need to replace the low hardness of soft rolls, in order to improve level over uneven base. Equipped with pressure gauge block and a wire ring in the interest of some of the son of bamboo base and mixed numbers to consider, with a relatively small gauge blocks and rings of wire, cord section in order to use the friction coefficient is small, do not take damage elastane to ensure the quality of the wire. Spinning on the cradle, if used for too long, the pressure will lead to uneven development and strength of grip strength design areas are incompatible, resulting in abnormal bamboo, therefore, need to re-adjust the pressure of the cradle, if necessary, replace part of the spring to fix the problem unusual bamboo.
As part of Spandex slub slub twist is small, the son of spandex easily coating can be adjusted periodically to guide wire wheel hand position, so that spandex should be kept in places with a fuse wire guide hooks, so the smooth guide wire traveling and found that rapid treatment of non-performing parts. To avoid hollow yarn, son and son broke dual-core wire, tube wire break is not more joints, after re-insert the air traffic control, use Joint media, and son, son of spandex should always check if the normal supply circuit, bamboo is normal, to ensure that the operation normal. The equipment was modified after the spandex core-spun yarns, spinning Spandex slub 5.83 7.28tex good effect, spinning bamboo regular and irregular two types of son bamboo to substantially increase the added value we can use a small entrance for greater efficiency economy.
2. Flamed key parameters and production technology
Settings include flame flames over the roughness of bamboo length and spacing flame flames three parameters, different combinations of these three parameters directly affect the style and thickness knitting, knit products and therefore the parameters of the requirements of various bamboo. Are classified as fine strand bamboo bamboo thick, coarse flamed bamboo flamed flamed flamed wire length is divided into short and long flamed bamboo bamboo spacing generally short distance festival and long pitch points, no ground wire short fuse in the context of 2cm-10cm long location flamed grain is usually 20cm-40cm wide. Roughness bamboo, length and spacing flame flames refer to general situations, special circumstances beyond the limits can also be a breakthrough.
Knitting with the process of yarn spinning flamed to apply mainly to the process of traditional yarn. After the district in which the writing runs multiple, generally should be between 1.2 times -1.3 times, and that means writing the appropriate multiple the wider area, appropriate to reduce the force of distraction, reduce the volatility of the drawing power will reduce a "hard head". In these circumstances, the strand, the smallest number of fine flamed is particularly important. Gauge block corresponding JAW Spinning should facilitate the control fibering force and stability, son of fire, it should be in the average number and the number to choose between the strand.
Knitting with flame parameters front rollers generally lower than the speed yarn regular 10% -20% for coarse bamboo, son flamed long, to reduce resistance wire evenly, reducing the breakdown of extruded, roller speed settings before must still be low. Clearly the size parameters before the roll speed and resolution of the wire core, the roughness of bamboo, length and other parameters of bamboo.
Choice rings should be conducive to reducing the size of fluctuations in the gas-ring tension, if the number of medium or coarse thread is appropriate to adopt the self-lubricating ring. Flamed metal ring spun yarn of correspondence are the difficulties of cross-sectional shape of the loop of wire with large arch is appropriate. Spun yarn twist factor usually set between 340 to 360.
To shoot a good bit knitting, son flamed as required basis and quality characteristics to ensure that wiring in good condition, for the editorial system, to ensure the stability of pressure, rubber roller, rubber ring, pin without playing Gordon, to twist the winding system must be steel necklace, pins, spirit guide wire hook to minimize voltage fluctuations during winding. Strengthen the drive of the spindle, spindle maintenance, to reduce differences caused torsion by mechanical factors.
4, application developers spandex elastic yarn, knitted deformation
Of spandex fibers, it are two varieties of a type that polyester-based polyurethane, and the other for the polyether-based polyurethane. Spandex fibers in the structure human molecular chains are rigid and flexible segment of the chain as a copolymer structure mosaic, the production of spandex fibers have high flexibility and extensibility, maximum elongation of 700% of the original length, while the elongation of 500% flexibility response rates up to 95%.
1. Two-way stretch spandex warp knit
Two-way stretch Spandex knit chain that to wear a spandex yarn, combed through the pad flat to the thread, needles, having slipped due to a short extension lines are short, and looking over mats of hair, helium-spun combed Mon covered by the former. Not easy to damage. Other bars have taken under the requirements regular nylon thread, polyester yarn or cotton thread. Since the formation of spools of nitrogen-Mon, so, for the direction and frame have good flexibility. In the ordinary Tricot knitting machine, the spandex yarn let-off to be totally positive, and lead screw with a flexible alternative to rotary shaft power: playing with ways to facilitate the tissue volume, so that the deformation, the chain during the spandex yarn in some recovery of the fabric to form roll well.
1.1 plain stretch fabrics
Elastic tissue is actually woven through the velvet, the fabric has good flexibility in both directions and the fabric looks ordinary, reasonable control over deformation of spandex stretch ratio, and two guide bars of the let-off amount of content of the son of spandex can be controlled in about 15%, widely used in small bathing suits, clothing skating, gymnastics and women other sporting events, clothing.
1.2 stretch velvet is not reversed
Does not come with velvet stretch is actually a simple needle-bed 2 fabrics comb. In the comb and combed for weaving elastically, the former Salisbury multi-pin rear sliding away of the needle to form a long extension cable. As the role of the stretch of spandex, the former worsted yarn to form a line extension similar to the ark of the sponge, finishing when the first driving a light nap, then mowing the old hair line extension wire to form a dense and difficult to build as hair down, stuffed very dependent on the length of the extension lines.
Control reasonable deformation son elastane draw ratio and the amount of the guide let off the use of spandex yarn can be controlled in 7% of the total weight of less help to reduce production costs. The product has an elegant look and feel, good flexibility in both meaning is a very good clothing and decorative knitted chain tomorrow.
2. A sense of chain spandex knit
Meaning Expandable String Spandex knit generally use thicker wire in the integration of Spandex Raschel knitting machine, wear spandex yarn to make a special Post-comb weft insertion pad, son of spandex to make the main show in the fabric of the vertical, and is among the other local music. The Over rougher spandex, spandex yarn to show the direction of more flexibility.
Stretch Hexagonal Eye 2.1
Son of the eye hexagonal and spandex stretch fabric is double-brushed woven nylon, the fabric has a high flexibility vertical side is slightly elastic, adapted to women bras, underwear and so on.
2.2 Elastic knit chain link
Mesh knitted elastic fabric chain is a spandex and nylon woven four-bar warp-knitted fabric after finishing the class, the son of spandex in the fabric was the vertical line-like son nylon wrapped around it, the only strong vertical fabric flexible, adapted as bras, belts, elastic bands.
V. Conclusion
Recent years, the spandex and the type of rich variety of materials, including the different specifications of the plain, twill, satin, small stretch spandex jacquard fine woolen fabric woolen fabric, and a variety of dyed stretch the son directly in front of shirt, denim stretch in the fabric of a long, various elastic fabrics dye, stretch poplin, stretch khaki, stretch velvet, stretch knit, and the support of various types of clothing such as elastic rib and wrist. In addition, the chain of elastic spandex ribbed for the development of non-woven fabric also has good prospects. About the Author
I am a professional editor from
Hardware Wholesale
, and my work is to promote a free online trade platform.
http://www.hardware-wholesale.com/ contain a great deal of information about
cotton cargo pants
,
hippie jeans
welcome to visit!
Cotton-Graph-A-Core