Fabrics

FABRIC IDENTIFICATION:

Burn Test - CAUTION. WARNING. BE CAREFUL! This should only be done by skilled burners! Make sure there is a bucket of water nearby and that you burn in a metal bucket or non-plastic sink.

To identify fabric that is unknown, a simple burn test can be done to determine if the fabric is a natural fiber, man made fiber, or a blend of natural and man made fibers. The burn test is used by many fabric stores and designers and takes practice to determine the exact fiber content. However, an inexperienced person can still determine the difference between many fibers to "narrow" the choices down to natural or man made fibers. This elimination process will give information necessary to decide the care of the fabric.

WARNING: All fibers will burn! Asbestos treated fibers are, for the most part fire proof. The burning test should be done with caution. Use a small piece of fabric only. Hold the fabric with tweezers, not your fingers. Burn over a metal dish with soda in the bottom or even water in the bottom of the dish. Some fabrics will ignite and melt. The result is burning drips which can adhere to fabric or skin and cause a serious burn.
Cotton is a plant fiber. When ignited it burns with a steady flame and smells like burning leaves.

The ash left is easily crumbled. Small samples of burning cotton can be blown out as you would a candle.
Linen is also a plant fiber but different from cotton in that the individual plant fibers which make up the yarn are long where cotton fibers are short. Linen takes longer to ignite. The fabric closest to the ash is very brittle. Linen is easily extinguished by blowing on it as you would a candle.

Silk is a protein fiber and usually burns readily, not necessarily with a steady flame, and smells like burning hair. The ash is easily crumbled. Silk samples are not as easily extinguished as cotton or linen.

Wool is also a protein fiber but is harder to ignite than silk as the individual "hair" fibers are shorter than silk and the weave of the fabrics is generally looser than with silk. The flame is steady but more difficult to keep burning. The smell of burning wool is like burning hair.

Man Made Fibers
Acetate is made from cellulose (wood fibers), technically cellulose acetate. Acetate burns readily with a flickering flame that cannot be easily extinguished. The burning cellulose drips and leaves a hard ash. The smell is similar to burning wood chips.

Acrylic technically acrylonitrile is made from natural gas and petroleum. Acrylics burn readily due to the fiber content and the lofty, air filled pockets. A match or cigarette dropped on an acrylic blanket can ignite the fabric which will burn rapidly unless extinguished. The ash is hard. The smell is acrid or harsh.

Nylon is a polyamide made from petroleum. Nylon melts and then burns rapidly if the flame remains on the melted fiber. If you can keep the flame on the melting nylon, it smells like burning plastic.

Polyester is a polymer produced from coal, air, water, and petroleum products. Polyester melts and burns at the same time, the melting, burning ash can bond quickly to any surface it drips on including skin. The smoke from polyester is black with a sweetish smell. The extinguished ash is hard.

Rayon is a regenerated cellulose fiber which is almost pure cellulose. Rayon burns rapidly and leaves only a slight ash. The burning smell is close to burning leaves.

Blends consist of two or more fibers and, ideally, are supposed to take on the characteristics of each fiber in the blend. The burning test can be used but the fabric content will be an assumption.

FABRIC CARE
Generally, the best rule is to follow the care instructions on the manufacturer’s label. If there is no label and/or you wish to wash a garment or fabric at home instead of dry clean, the properties of each fabric will help you determine the care of the fabric or garment.

Dry Cleaning is by definition, cleaning with solvents and little or no water. The combination of solvents and heat is hard on fabrics and may cause as much wear as actual wearing of the garment. Perchlorethylene, the cleaning fluid used by most dry cleaners, is the most effective cleaner so far for most all types of fabrics.

However, "perc" as it is called in the dry-cleaning industry is classified as a hazardous air pollutant by the Clean Air Act. Perc is toxic. Dry cleaning customers should take their garments out of the plastic bags and air their garments after dry cleaning.

You, the consumer, can inform yourself when selecting a dry cleaner. Common sense will cover the basic questions such as the appearance of the dry cleaning store - - - Is it neat and clean or dirty and cluttered? Is the location convenient and are they open when you need to drop of or pick up your dry cleaning?

Technical considerations include solvent purity. Solvent must be distilled to remove greases, oils, waxes and dyes. Poor solvent purity or quality can result in an objectionable odor in the garment and a "graying" of white clothing.

Pressing after cleaning should also be considered. Most anyone can press wool pants but it takes a skilled professional presser to do a quality job on linen and silk items. If the dry cleaner cannot explain the difference in pressing linen and silk versus wool directly and authoritatively, it is doubtful that these garments will be handled with the care they require. Linen can withstand higher heat when ironed, and should be pressed when damp. Silk requires a lower temperature iron and should be steam ironed, preferably with a press cloth. Wool should be pressed with steam and a moderate temperature.

Packaging of the cleaned garment is also important. A garment can be cleaned and pressed well but if it is jammed into a small bag, it can become a wrinkled mess. Jamming too many finished and bagged garments into the dry cleaners rack can also wrinkle finished garments.

Finally, develop a dialogue with your dry cleaner. Note the type of stains that you have on your garment and list it for the dry cleaner. Their pre-spotting will help eliminate stains that could otherwise be heat set after the garment is cleaned.

Be an informed and fair consumer. Not all spots can be removed especially if you, the consumer, have pressed the stain into the fabric. Many stains can be heat set. Garment care is the responsibility of both you and your dry cleaner.

Wet Cleaning is described as a new process by some cleaning establishments. They advertise that their process will replace dry cleaning and the environmentally dangerous solvents they use. However, until this process is perfected and proven to effectively replace dry cleaning, caution should be used by the consumer. Wet cleaning is accomplished by using water based chemicals.

Some cleaning establishments actually claim to have this service but just hand wash the garment and then professionally press the garment. This process works well with some fabrics which have manufacturers labels stating "hand wash". Garments with labels printed "dry clean only" may shrink, fade, or wrinkle so badly that pressing does not restore then original look of the fabric.

New "wet cleaning" stores are available in some areas. The "wet cleaning" process involves computer controlled machines, soap, conditioners and finishers. This new process is supposed to replace dry cleaning. However, until the wet cleaning process has been thoroughly tested, care should be taken before taking your favorite "dry clean only" garments to the new establishments. Outer fabric, interfacings, linings, shoulder pads, and finishes all react differently when washed. Some fabrics shrink or change shape when washed. Some shoulder pads are designed for dry cleaning only and may fall apart when washed.

Professional laundering is offered by most dry cleaners. Washable garments are professionally washed and pressed. Men’s and women’s shirts are often bleached and starched according to the manufacturers label. Some of the laundering is done with very hot water which may shrink the interfacing or stiffening used in collars and cuffs. Less expensive garments may use interfacing that either shrinks or comes loose with very hot water. These garments cannot be fixed.

Starching shirts and other cotton or cotton/polyester garments is common. The basic function of starch is to stiffen the garment. Incidental use is to prevent stains from penetrating the fiber. However, starch leaves minute crystals in the fiber and can often wear the garment out faster than a garment that has not been starched. The choice is then appearance versus longer life for your garment.

Home Laundering is not only easier to control but can add life to your garments. Choosing a detergent for home laundering is a daunting task!

Detergents are chemical compounds that contain wetting agents and emulsifiers. Technically detergents are called "Synthetic Detergents" as they are not made from fats and lye from which soap is made. Generally the labels on the detergent inform you, the consumer, and make the choice easier.

General purpose laundry detergents work well on most washable fabrics. Some detergents take more product for each wash as fillers are used by the detergent manufacture. Recently, detergent companies have started to reduce the amount of fillers in their products, thus the amount of detergent required per load of laundry is less. Read the label to determine various additives. Added bleach may gradually remove the dyes or color unless the garment is colorfast to bleach. Most all detergents have "surfactants" this is nothing new. Whiteners can be either bleach or bluing agents. More expensive is not always better.

Soap is not the same as detergents. All detergents are soaps but not all soaps are detergents. Confused? Soap was first used in 600 BC Soap was first made by boiling goat fat, water, and ash high in potassium carbonate. Although soap has been improved over the years, it still leaves a deposit we call "soap scum" in the shower and bath. This scum is difficult to remove from fabrics if soap is used in the laundry.

Chlorine bleaches can safely be used on cotton, cotton/polyester and some man made fabrics. Consult the garment care label or properties of individual fibers listed in this booklet.

Hand washing detergents can be used for home laundry when cleaning fine fabrics. These products are often effective when using cold water. However, not all hand washing detergents are milder than regular laundry products although they are often more expensive. Properties to look for when using hand washing detergents include use in cold water, quick dissolving in cold water, and complete rinsing of the detergent after the wash.
To test hand washing detergents or any detergent, dissolve recommended amount of detergent in a quart of cold water. Allow the detergent and water to sit for 24 hours. Note the residue, if any, in the bottom of the quart jar. This residue may be difficult to rinse out of your garment.

Shampoos can also be used for hand washing garments. Use a good shampoo, not one containing "creme rinse". If your shampoo cleans your hair and leaves it shiny with no residues, it usually cleans your garment too.

Fabric softeners, both liquid and dryer sheets, add products to your fabrics. Some of the softeners are wax based which leaves a coating on the fibers creating a feel of softer but reducing the absorbency of the fiber. Some softeners have a perfume that is allergy related for many people. If you have ever used a fabric softener dryer sheet with your polyester garments, you may have seen "grease" spots appear on your garment. This is actually a wax and can be removed by re-washing.

NATURAL FABRICS are created from fibers of animals coats, silkworm cocoons, and plants' seeds, leaves, and stems. Click on the natural fiber below for information on each fiber and their weaves.

WOOL fabric brings to mind cozy warmth. Some wools are scratchy giving some people the idea that they are "allergic" to wool. Although wool fiber comes from a variety of animal coats, not all wool’s are scratchy but rather extremely soft. The wool fibers have crimps or curls which create pockets and gives the wool a spongy feel and creates insulation for the wearer.

The outside surface of the fiber consists of a series of serrated scales which overlap each other much like the scales of a fish. Wool is the only fiber with such serration’s which make it possible for the fibers to cling together and produce felt. The same serration’s will also cling together tightly when wool is improperly washed and shrinks! Wool will not only return to its original position after being stretched or creased, it will absorb up to 30% of its weight in moisture without feeling damp. Its unique properties allow shaping and tailoring, making the wool the most popular fabric for tailoring fine garments. Wool is also dirt resistant, flame resistant, and, in many weaves, resists wear and tearing.

Basically, there are two different processes used in wool production. Woolen fabrics have a soft feel and fuzzy surface, very little shine or sheen, will not hold a crease, and are heavier and bulkier than worsteds. Blankets, scarves, coating, and some fabrics are considered woolens. Worsted wool is smoother than woolen, takes shine more easily, does not sag, holds a crease well, is lighter and less bulky, and wears longer than woolen. Worsted wool’s require a greater number of processes, during which fibers are arranged parallel to each other.

The smoother, harder-surface worsted yarns produce smoother fabrics with a minimum of fuzziness and nap. Fine worsted wool is even seen in clothing for athletics such as tennis. No, they are not hotter than polyester but actually cooler, as the weave of the fabric allows wool to absorb perspiration and the fabric "breathes," unlike polyester.

WOOL SPECIALTY FIBERS, although still classified as wool, are further classified by the animal the fiber comes from.

Alpaca fleece is very rich and silky with considerable luster. It comes from the Alpaca.
Mohair is from the angora goat and is highly resilient and strong. Mohair’s luster, not softness, determines its value. Mohair is used in home decorating fabrics as well as garment fabrics including tropical worsteds.
Angora wool is from the angora rabbit. This soft fiber is used in sweaters, mittens and baby clothes.

Camel hair is from the extremely soft and fine fur from the undercoat of the camel. Camel’s hair can be used alone but is most often combined with fine wool for overcoating, topcoating, sportswear and sports hosiery. Because of the beauty of the color, fabrics containing camel’s hair are usually left in the natural camel color or dyed a darker brown. Light weight and soft, it is said that a 22 oz. camel fabric is as warm as a 32 oz. woolen fabric.

Cashmere is from the Kasmir goat down. Separation of the soft fibers from the long, coarse hair is tedious and difficult, contributing to the expense of the fabric. The soft hair is woven or knitted into fine garments and can also be blended with silk, cotton, or wool.

Vicuna is the softest coat cloth in the world. The amount of coarse hair to be separated from the soft fibers is negligible and yields the finest animal fiber in the world. Vicuna is a member of the Llama family and is small and wild. Since it is generally killed to obtain the fleece, it is protected by rigorous conservation measures. This fiber is rare and very expensive, costing several hundred dollars per yard.

COTTON, cool, soft, comfortable, the principal clothing fiber of the world. Its production is one of the major factors in world prosperity and economic stability. Cotton "breathes". What would we do without cotton? Since cotton wrinkles, polyester was added to give it wash and wear properties for a busy world.

In recent times, the consumer determined that polyester, although easier to care for, took away the cool from cotton and also added a "pilling" effect to cotton/polyester blends. Consumers now often request "100% Cotton". Permanent finishes also added to the all cotton fabric gave a wash and wear property to cotton. cotton. The cotton fiber is from the cotton plant’s seed pod The fiber is hollow in the center and, under a microscope looks like a twisted ribbon. "Absorbent" cotton will retain 24-27 times its own weight in water and is stronger when wet than dry. This fiber absorbs and releases perspiration quickly, thus allowing the fabric to "breathe". Cotton can stand high temperatures and takes dyes easily.

Chlorine bleach can be used to restore white garments to a clear white but this bleach may yellow chemically finished cottons or remove color in dyed cottons. Boiling and sterilizing temperatures can also be used on cotton without disintegration. Cotton can also be ironed at relatively high temperatures, stands up to abrasion and wears well.

Mercerized cotton is treated to permanently straighten the cotton fibers which then becomes a smooth, rod-like fiber that is uniform in appearance with a high luster. Cotton is often blended with other fibers such as polyester, linen, wool, to "blend" the best properties of each fiber.

SILK, the fabric that makes its own statement. Say "silk" to someone and what do they visualize? No other fabric generates quite the same reaction. For centuries silk has had a reputation as a luxurious and sensuous fabric, one associated with wealth and success. Silk is one of the oldest textile fibers known to man. It has been used by the Chinese since the 27th century BC. Silk is mentioned by Aristotle and became a valuable commodity both in Greece and Rome. During the Roman Empire, silk was sold for its weight in gold.

Today, silk is yet another word for elegance, and silk garments are prized for their versatility, wearability and comfort. Silk, or soie in French, is the strongest natural fiber. A steel filament of the same diameter as silk will break before a filament of silk. Silk absorbs moisture, which makes it cool in the summer and warm in the winter. Because of its high absorbency, it is easily dyed in many deep colors. Silk retains its shape, drapes well, caresses the figure, and shimmers with a luster all its own.

Contemporary silk garments range from evening wear to sports wear. A silk suit can go to the office and, with a change of accessories and a blouse, transform into an elegant dinner ensemble. Silk garments can be worn for all seasons.

Silk -- elegant, versatile and washable. In the past, owning a silk garment meant not only the initial price of the garment but also the cost of dry cleaning. All silk is washable. Silk is a natural protein fiber, like human hair, taken from the cocoon of the silkworm. The natural glue, sericin, secreted by silkworms and not totally removed during manufacturing of the silk, is a natural sizing which is brought out when washing in warm water. Most silk fabrics can be hand washed.

Technically, silk does not shrink like other fibers. If the fabric is not tightly woven, washing a silk with tighten up the weave.... thus, lighter weights of silk (say a crepe de chine of 14 mm) can be improved by washing as it will tighten up the weave. A tightly woven silk will not "shrink" or will "shrink" a lot less. Silk garments, however, can shrink if the fabric has not been washed prior to garment construction. When washing silk, do not wring but roll in a towel. Silk dries quickly but should not be put in an automatic dryer unless the fabric is dried in an automatic dryer prior to garment construction. A good shampoo works well on silk. It will remove oil and revitalize your silk. Do not use an alkaline shampoo or one which contains ingredients such as wax, petroleum, or their derivatives, as these products will leave a residue on your silk and may cause "oil" spots. If static or clinging is a problem with your silks, a good hair conditioner (see above cautions) may be used in the rinse water.

Silk may yellow and fade with the use of a high iron setting. Press cloths and a steam iron are recommended. Silk is also weakened by sunlight and perspiration.

LINEN, elegant, beautiful, durable, the refined luxury fabric. Linen is the strongest of the vegetable fibers and has 2 to 3 times the strength of cotton. Linen table cloths and napkins have been handed down generation to generation. Not only is the linen fiber strong, it is smooth, making the finished fabric lint free. Fine china, silver and candles are enhanced by the luster of linen which only gets softer and finer the more it is washed.
Linen is from flax, a bast fiber taken from the stalk of the plant.

The luster is from the natural wax content. Creamy white to light tan, this fiber can be easily dyed and the color does not fade when washed. Linen does wrinkle easily but also presses easily. Linen, like cotton, can also be boiled without damaging the fiber.

Highly absorbent and a good conductor of heat, this fabric is cool in garments. However, constant creasing in the same place in sharp folds will tend to break the linen threads. This wear can show up in collars, hems, and any area that is iron creased during the laundering. Linen has poor elasticity and does not spring back readily.

HEMP is currently being used by designers in clothing. When thinking of hemp, the illegal plant, marijuana comes to mind. No, hemp fabric does not contain the narcotic chemical that, when smoked produces the "high" that smoking marijuana produces. Marijuana is from the dried flowers and leaves of the Cannabis Sativa plant. Hemp fabric is made from the stems of the plant.

The stems are processed to dissolve the gum or pectin and separate the fibers which are then processed again and woven into yarns and fabric. The finest hemp for fabric is produced in Italy. Hemp fabric is like linen in both hand and appearance. Hemp fabric withstands water better than any other textile product. It wrinkles easily and should not be creased excessively to avoid wear and breakage of the fibers.

RAMIE is also similar to linen and is a bast of plant fiber. It is natural white in color, has a high luster and an unusual resistance to bacteria and molds. Used in fabrics, and often mistaken for linen, it is extremely absorbent and dries quickly. Ramie has excellent abrasion resistance and has been tested to be three to five times stronger than cotton and twice as strong as flax. It is an inexpensive fiber from an East Asian plant and can be spun or woven into a fabric.

JUTE is a glossy fiber from a plant. It is seen most often in sacks, rope, twine, and as backing on carpeting.