Sunday, July 15, 2012
Saturday, July 14, 2012
Polyethylene
Polyethylene is classified into several different categories based mostly on its density and branching. The mechanical properties of PE depend significantly on variables such as the extent and type of branching, the crystal structure and the molecular weight. With regard to sold volumes, the most important polyethylene grades are HDPE, LLDPE and LDPE.
HDPE is defined by a density of greater or equal to 0.941 g/cm3. HDPE has a low degree of branching and thus stronger intermolecular forces and tensile strength. HDPE can be produced by chromium/silica catalysts, Ziegler-Natta catalysts or metallocene catalysts. The lack of branching is ensured by an appropriate choice of catalyst (for example, chromium catalysts or Ziegler-Natta catalysts) and reaction conditions. HDPE is used in products and packaging such as milk jugs, detergent bottles, margarine tubs, garbage containers and water pipes. One third of all toys are manufactured from HDPE. In 2007 the global HDPE consumption reached a volume of more than 30 million tons. PEX is a medium- to high-density polyethylene containing cross-link bonds introduced into the polymer structure, changing the thermoplast into an elastomer. The high-temperature properties of the polymer are improved, its flow is reduced and its chemical resistance is enhanced. PEX is used in some potable-water plumbing systems because tubes made of the material can be expanded to fit over a metal nipple and it will slowly return to its original shape, forming a permanent, water-tight, connection.
MDPE is defined by a density range of 0.926–0.940 g/cm3. MDPE can be produced by chromium/silica catalysts, Ziegler-Natta catalysts or metallocene catalysts. MDPE has good shock and drop resistance properties. It also is less notch sensitive than HDPE, stress cracking resistance is better than HDPE. MDPE is typically used in gas pipes and fittings, sacks, shrink film, packaging film, carrier bags and screw closures.
LLDPE is defined by a density range of 0.915–0.925 g/cm3. LLDPE is a substantially linear polymer with significant numbers of short branches, commonly made by copolymerization of ethylene with short-chain alpha-olefins (for example, 1-butene, 1-hexene and 1-octene). LLDPE has higher tensile strength than LDPE, it exhibits higher impact and puncture resistance than LDPE. Lower thickness (gauge) films can be blown, compared with LDPE, with better environmental stress cracking resistance but is not as easy to process. LLDPE is used in packaging, particularly film for bags and sheets. Lower thickness may be used compared to LDPE. Cable covering, toys, lids, buckets, containers and pipe. While other applications are available, LLDPE is used predominantly in film applications due to its toughness, flexibility and relative transparency. Product examples range from agricultural films, saran wrap, and bubble wrap, to multilayer and composite films. In 2009 the world LLDPE market reached a volume of almost 24 billion US-dollars (17 billion Euro). LDPE is defined by a density range of 0.910–0.940 g/cm3. LDPE has a high degree of short and long chain branching, which means that the chains do not pack into the crystal structure as well. It has, therefore, less strong intermolecular forces as the instantaneous-dipole induced-dipole attraction is less. This results in a lower tensile strength and increased ductility. LDPE is created by free radical polymerization. The high degree of branching with long chains gives molten LDPE unique and desirable flow properties. LDPE is used for both rigid containers and plastic film applications such as plastic bags and film wrap. In 2009 the global LDPE market had a volume of circa 22.2 billion US-dollars (15.9 billion Euro). VLDPE is defined by a density range of 0.880–0.915 g/cm3. VLDPE is a substantially linear polymer with high levels of short-chain branches, commonly made by copolymerization of ethylene with short-chain alpha-olefins (for example, 1-butene, 1-hexene and 1-octene). VLDPE is most commonly produced using metallocene catalysts due to the greater co-monomer incorporation exhibited by these catalysts. VLDPEs are used for hose and tubing, ice and frozen food bags, food packaging and stretch wrap as well as impact modifiers when blended with other polymers.
Recently much research activity has focused on the nature and distribution of long chain branches in polyethylene. In HDPE a relatively small number of these branches, perhaps 1 in 100 or 1,000 branches per backbone carbon, can significantly affect the rheological properties of the polymer.
- Ultra high molecular weight polyethylene (UHMWPE)
- Ultra low molecular weight polyethylene (ULMWPE or PE-WAX)
- High molecular weight polyethylene (HMWPE)
- High density polyethylene (HDPE)
- High density cross-linked polyethylene (HDXLPE)
- Cross-linked polyethylene (PEX or XLPE)
- Medium density polyethylene (MDPE)
- Linear low density polyethylene (LLDPE)
- Low density polyethylene (LDPE)
- Very low density polyethylene (VLDPE)
HDPE is defined by a density of greater or equal to 0.941 g/cm3. HDPE has a low degree of branching and thus stronger intermolecular forces and tensile strength. HDPE can be produced by chromium/silica catalysts, Ziegler-Natta catalysts or metallocene catalysts. The lack of branching is ensured by an appropriate choice of catalyst (for example, chromium catalysts or Ziegler-Natta catalysts) and reaction conditions. HDPE is used in products and packaging such as milk jugs, detergent bottles, margarine tubs, garbage containers and water pipes. One third of all toys are manufactured from HDPE. In 2007 the global HDPE consumption reached a volume of more than 30 million tons. PEX is a medium- to high-density polyethylene containing cross-link bonds introduced into the polymer structure, changing the thermoplast into an elastomer. The high-temperature properties of the polymer are improved, its flow is reduced and its chemical resistance is enhanced. PEX is used in some potable-water plumbing systems because tubes made of the material can be expanded to fit over a metal nipple and it will slowly return to its original shape, forming a permanent, water-tight, connection.
MDPE is defined by a density range of 0.926–0.940 g/cm3. MDPE can be produced by chromium/silica catalysts, Ziegler-Natta catalysts or metallocene catalysts. MDPE has good shock and drop resistance properties. It also is less notch sensitive than HDPE, stress cracking resistance is better than HDPE. MDPE is typically used in gas pipes and fittings, sacks, shrink film, packaging film, carrier bags and screw closures.
LLDPE is defined by a density range of 0.915–0.925 g/cm3. LLDPE is a substantially linear polymer with significant numbers of short branches, commonly made by copolymerization of ethylene with short-chain alpha-olefins (for example, 1-butene, 1-hexene and 1-octene). LLDPE has higher tensile strength than LDPE, it exhibits higher impact and puncture resistance than LDPE. Lower thickness (gauge) films can be blown, compared with LDPE, with better environmental stress cracking resistance but is not as easy to process. LLDPE is used in packaging, particularly film for bags and sheets. Lower thickness may be used compared to LDPE. Cable covering, toys, lids, buckets, containers and pipe. While other applications are available, LLDPE is used predominantly in film applications due to its toughness, flexibility and relative transparency. Product examples range from agricultural films, saran wrap, and bubble wrap, to multilayer and composite films. In 2009 the world LLDPE market reached a volume of almost 24 billion US-dollars (17 billion Euro). LDPE is defined by a density range of 0.910–0.940 g/cm3. LDPE has a high degree of short and long chain branching, which means that the chains do not pack into the crystal structure as well. It has, therefore, less strong intermolecular forces as the instantaneous-dipole induced-dipole attraction is less. This results in a lower tensile strength and increased ductility. LDPE is created by free radical polymerization. The high degree of branching with long chains gives molten LDPE unique and desirable flow properties. LDPE is used for both rigid containers and plastic film applications such as plastic bags and film wrap. In 2009 the global LDPE market had a volume of circa 22.2 billion US-dollars (15.9 billion Euro). VLDPE is defined by a density range of 0.880–0.915 g/cm3. VLDPE is a substantially linear polymer with high levels of short-chain branches, commonly made by copolymerization of ethylene with short-chain alpha-olefins (for example, 1-butene, 1-hexene and 1-octene). VLDPE is most commonly produced using metallocene catalysts due to the greater co-monomer incorporation exhibited by these catalysts. VLDPEs are used for hose and tubing, ice and frozen food bags, food packaging and stretch wrap as well as impact modifiers when blended with other polymers.
Recently much research activity has focused on the nature and distribution of long chain branches in polyethylene. In HDPE a relatively small number of these branches, perhaps 1 in 100 or 1,000 branches per backbone carbon, can significantly affect the rheological properties of the polymer.
Modal Fabric
Modal Fabric is boasted with its luxurious softness, the ultimate sensual feeling next to the skin.
MicroModal fabric is more developed fabric, with 1dtex fibre fineness.
MicroModal®Air fabric is more and more innovated fabric, with 0.8dtex fibre fineness.
ProModal® fabric is the perfect combination of Modal® fabric and Tencel® fabric, to unite outstanding softness with optimum function.
MicroModal fabric is more developed fabric, with 1dtex fibre fineness.
MicroModal®Air fabric is more and more innovated fabric, with 0.8dtex fibre fineness.
ProModal® fabric is the perfect combination of Modal® fabric and Tencel® fabric, to unite outstanding softness with optimum function.
Thermocool fabric
ThermoCool is a Multi-functional and ecological evolution born from
ADVANSA technological experience of modified cross-section fibres.
The fibre is hollow with channel, keep the body at a comfortable temperature whatever the outside temperature or the physical inensity of your exercise. Without any kind of chemical Treatments, provide enhanced comfort coupled with moiture management during physical exertion.
The fibre is hollow with channel, keep the body at a comfortable temperature whatever the outside temperature or the physical inensity of your exercise. Without any kind of chemical Treatments, provide enhanced comfort coupled with moiture management during physical exertion.
Coolmax fabric
Coolmax
Coolmax is a trademark and a brand name for a series of moisture-wicking technical fabrics developed in 1986 by DuPont Textiles and Interiors (now Invista). The fabrics employ specially-engineered polyester fibres to improve "breathability" compared to natural fibres like cotton.Structure: Coolmax fibres are not round, but are slightly oblong in cross-section with grooves running lengthwise along the threads. They are manufactured in either a tetrachannel or hexachannel style. The series of closely spaced channels creates capillary action that wicks moisture through the core and out to a wider area on the surface of the fabric which increases evaporation.
Uses: CoolMax fabric was originally developed for clothing intended for use during extreme physical exertion — sweat can evaporate quickly so the wearer is kept dry. Other useful properties include resistance to fading, shrinking and wrinkling. The fibres are now often woven with other materials like cotton, wool, Spandex and Tencel. As a result, CoolMax is found in a wide variety of garments from mountain climbing gear, to casual sportswear and underwear.
CoolMax fabric mattress covers and bed sheets have also been designed for those who have hot flashes or night sweating due to illness, medication or menopause.
Competitors: Most competing fabrics are made from polyester or nylon. Other brand names are Capilene® polyester, Supplex® nylon, Pertex® fabrics and polynosic rayons like Tencel®.
'Wick away' or 'wickaway' is a general term used for fabrics that are engineered to draw moisture away from the skin through capillary action and increased evaporation over a wider surface area.
Thursday, January 12, 2012
Tagless Care Labels
Tagless Care Labels
Although woven care labels have been an industry standard for a long time, they can sometimes be irritating even on adult apparel. To minimize the possibility of the tag, or remnants of the tag after being cut off, irritating your baby's gentle skin, Luvable Friends has chosen to switch to tagless care labels on all apparel items.
This is a change in progress, however, meaning that some older stock of baby clothes may still have the woven care labels, but all new clothes brought in will be switched to the tagless style.
Tagless care labels contain the same information as the woven type would have; sizing information, fabric composition, and washing instructions. All of this is printed on in a color that will be readily visible against the color of the fabric, whether it be black text on white fabric or white text on black fabric.
Although woven care labels have been an industry standard for a long time, they can sometimes be irritating even on adult apparel. To minimize the possibility of the tag, or remnants of the tag after being cut off, irritating your baby's gentle skin, Luvable Friends has chosen to switch to tagless care labels on all apparel items.
This is a change in progress, however, meaning that some older stock of baby clothes may still have the woven care labels, but all new clothes brought in will be switched to the tagless style.
Tagless care labels contain the same information as the woven type would have; sizing information, fabric composition, and washing instructions. All of this is printed on in a color that will be readily visible against the color of the fabric, whether it be black text on white fabric or white text on black fabric.
Tagless care label
Why Custom Tagless Care Tags? We would have to ask you: why not? For starters, no one likes itchy tags. Not only is this a selling point for us, it would be for you too! Advertising comfort to your Clientelle is key. Picture it : instead of showcasing some already known brand, you can have your very own Custom Tagless Care Tags printed inside your apparel. Imagine being branded with your company's logo and information on the inside. After all, you are looking for name recognition to grow your company. Your Customers will be impressed by your garments and will know where to go to purchase more. This is not only a benefit for those selling garments, but also for those ordering garments for events or even gifts. Place donation information on the inside for charity events, or use it as a birthday card for a gift! The Custom Tagless Care Tag is our specialty and it is offered at an affordable rate and low minimum (36 for Screen Printing and no minimum for DTG ). Most Printers have a minimum of 200 or more for this service. Tagless Threads wants to offer you a stress free experience. Most important thing to remember : Have fun with it!
Wednesday, December 14, 2011
Cotton thread
Cotton thread is another form of upholstery thread that is used for many jobs. This natural fiber thread can lend a soft look to the stitching in the upholstery. It is important to only use cotton thread that is preshrunk, so the stitching will remain flat. Also keep in mind that cotton does not stretch and is more subject to breaking than other types of upholstery thread. One advantage is that this thread is very easy to color, making it easy to match the shade of the thread with the upholstery material.
Upholstery thread
One common type of thread used in upholstering jobs is nylon thread. Often transparent, the thread tends to resemble fishing line and offers a great deal of strength. When the job calls for making the seams as discreet as possible in the design, this type of thick thread is often a great option, especially if the choice of fabric is canvas or a something similar. Olefin and other synthetic fibers also work very well with this type of upholstery thread.
Upholstery thread
Upholstery thread is heavy-duty thread used to bind sections of material together while upholstering a piece of furniture. The thread can be made from a wide range of natural and artificial fibers and is available in a wide range of weights. Much stronger than standard sewing thread, the choice of upholstery thread depends on the type of material being used for the upholstery project.
Polyester garment care clean
If the item contains at least 50 percent polyester, it can be cleaned with a spray upholstery cleaner. Before applying the cleaning solution to the entire surface, test it in a small spot that will not be readily visible to ensure that it doesn't cause the color to bleed. If the test area doesn't run, then the product is safe to use for the rest of the furniture.
When polyester fabric gets stained with oily substances, it's important to treat the spot promptly. If the spot isn't removed and the clothing gets heated in a dryer or by an iron, the stain will become set in. Instead, place it in the wash promptly and use a heavy-duty detergent. A pretreater may be used to loosen the stain beforehand.
When polyester fabric gets stained with oily substances, it's important to treat the spot promptly. If the spot isn't removed and the clothing gets heated in a dryer or by an iron, the stain will become set in. Instead, place it in the wash promptly and use a heavy-duty detergent. A pretreater may be used to loosen the stain beforehand.
Polyester care instruction
If the item contains at least 50 percent polyester, it can be cleaned with a spray upholstery cleaner. Before applying the cleaning solution to the entire surface, test it in a small spot that will not be readily visible to ensure that it doesn't cause the color to bleed. If the test area doesn't run, then the product is safe to use for the rest of the furniture.
Cleaning polyester fabric used to make furniture is a different process. Before using any type of cleaning product on couches, chairs or cushions, take the time to find out what the polyester content is. If it's less than 50 percent of the fabric, hiring a professional company to come out to clean the item is the best idea. They will use a process that is similar to the one used to dry clean clothing, which reduces the risk of stretching or damaging the fabric.
Cleaning polyester fabric used to make furniture is a different process. Before using any type of cleaning product on couches, chairs or cushions, take the time to find out what the polyester content is. If it's less than 50 percent of the fabric, hiring a professional company to come out to clean the item is the best idea. They will use a process that is similar to the one used to dry clean clothing, which reduces the risk of stretching or damaging the fabric.
Polyester care symbol
When cleaning polyester clothing in a washing machine, use warm water and select the permanent press cycle. Turning the item inside out before placing it in the machine will keep the outside surface looking new for a longer time. If bleach is being used to remove stains, use only a small amount, since bleach products tends to break down fibers in fabrics. The clean clothes may be placed in a dryer on low heat when the wash cycle is completed.
Polester clean
Polyester is a synthetic fabric that is used to make a number of familiar items. It resists wrinkling, making it a popular choice for clothing. Polyester is also used to make upholstered furniture. To make it last longer, it's important to follow the proper cleaning instructions.
Polyester clothing may be washed by hand or in a washing machine. Hand washing is considered the safer option, since there is less chance of the garment developing unsightly snags on the outside. If a clothing item made of this fabric is being washed by hand, warm water and a mild detergent should be used. Once it has been washed and rinsed, it can be hung up to dry.
Polyester clothing may be washed by hand or in a washing machine. Hand washing is considered the safer option, since there is less chance of the garment developing unsightly snags on the outside. If a clothing item made of this fabric is being washed by hand, warm water and a mild detergent should be used. Once it has been washed and rinsed, it can be hung up to dry.
Modal fiber clean
If small stains have appeared on modal fabric, it may be possible to get them out with hand scrubbing and a gentle detergent. The fabric should not be soaked or vigorously rubbed to remove stains. The earlier a stain is treated, the better; when a stain is brand new, blotting with cool water can sometimes flush out the stain, especially if a gentle detergent is added to encourage the stain to lift. If the fabric becomes wrinkled, it can be ironed at a low temperature. Fabric that is dulled may benefit from ironing to restore the sheen by smoothing the individual fibers.
To avoid wrinkling while traveling, modal garments can be rolled up as opposed to folded. Rolling also tends to take up less space, leaving more room in luggage. Modal garments should not be left on hangers as the prolonged hanging can cause the garments to distort and may also break some of the fibers, weakening the garment and causing it to lose some of its elasticity. Such garments should be stored flat or rolled to protect the fabric while also avoiding wrinkles.
To avoid wrinkling while traveling, modal garments can be rolled up as opposed to folded. Rolling also tends to take up less space, leaving more room in luggage. Modal garments should not be left on hangers as the prolonged hanging can cause the garments to distort and may also break some of the fibers, weakening the garment and causing it to lose some of its elasticity. Such garments should be stored flat or rolled to protect the fabric while also avoiding wrinkles.
Modal care symbol
Some modal fabric items are delicate and they should be hand washed in cool water with a mild detergent, wrapped in a towel to squeeze out the water, and then dried flat in the shade. More robust items can be washed on a gentle cycle with cool water and then either tumble dried low on a short cycle or laid out to dry. Modal should not be washed or dried in high heat or subjected to bleach and other harsh cleaners.
Care instruction for MODAL fabrci
Modal fabric needs to be cleaned gently to avoid damage and help the fabric stay flexible and colorfast. When well cared for, this fabric is highly durable. Care directions can vary between manufacturers and finished products and if there are doubts, the care label on a garment or fabric product should be consulted if it is available.
This fabric is made from cellulose that is subjected to a series of chemical processes and then spun. It is very strong and flexible, with a famous durability that allows it to retain its sheen through multiple washings. Modal fabric is also colorfast and can be used for a variety of things from underwear to dresses.
This fabric is made from cellulose that is subjected to a series of chemical processes and then spun. It is very strong and flexible, with a famous durability that allows it to retain its sheen through multiple washings. Modal fabric is also colorfast and can be used for a variety of things from underwear to dresses.
Modal fabric
Modal drapes well and keeps its shape, even when wet. In order to keep them looking best, pure modal products should be ironed after washing. This may not be necessary for modal fabric blends, however.
Modal was first developed by the Austria Lenzing company, who trademarked the fabric's name, but now many manufacturers make their own versions. The textile has particularly taken off in Indian companies. In the United States, modal is most often seen in bed sheets, towels, and robes, popularized in part by Bed, Bath & Beyond. However, it is slowly gaining ground as a clothing material as well. In Europe, where the fabric originated, it is already widely used in clothing as a replacement for cotton.
Modal was first developed by the Austria Lenzing company, who trademarked the fabric's name, but now many manufacturers make their own versions. The textile has particularly taken off in Indian companies. In the United States, modal is most often seen in bed sheets, towels, and robes, popularized in part by Bed, Bath & Beyond. However, it is slowly gaining ground as a clothing material as well. In Europe, where the fabric originated, it is already widely used in clothing as a replacement for cotton.
Modal blends
Modal is a processed bio-based textile made from reconstituted cellulose from the beech tree. It is very soft and popular for both clothing and household textiles such as bedding, upholstery, and towels. Modal may be used on its own or in a blend with cotton, spandex, or other textiles. In many ways, modal acts like cotton, but it also has some significant advantages over cotton.
Modal is considered a type of rayon. While rayon may be made of the wood pulp of a number of different trees, modal uses only beechwood. Modal is considered bio-based rather than natural because, though the raw materials used to make it are natural, they are heavily processed using a number of chemicals.
Like other types of rayon, originally marketed as "artificial silk," modal is soft, smooth and breathes well. Its texture is similar to that of cotton or silk. It is cool to the touch and very absorbent. Like cotton, modal dyes easily and becomes color-fast after submersion in warm water.
Modal is considered a type of rayon. While rayon may be made of the wood pulp of a number of different trees, modal uses only beechwood. Modal is considered bio-based rather than natural because, though the raw materials used to make it are natural, they are heavily processed using a number of chemicals.
Like other types of rayon, originally marketed as "artificial silk," modal is soft, smooth and breathes well. Its texture is similar to that of cotton or silk. It is cool to the touch and very absorbent. Like cotton, modal dyes easily and becomes color-fast after submersion in warm water.
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