Advice 1: How to whiten yellowed plastic

Plastic currently made household and electronic appliances, furniture, kitchen utensils, children's toys and numerous small household items. General properties of different types of plastics is they are not sensitive to humidity and is very well tolerated by the impact of strong acids and alkalis. But sunlight and organic solvents have different effects, depending on the composition of the polymer. Often under the action of ultraviolet light plastic turns yellow, and bleached, it is not always possible.
How to whiten yellowed plastic
You will need
  • -alcohol;
  • -chlorine bleach;
  • -soda ash;
  • -washing powder;
  • -perhydrol;
  • -acetone.
Instruction
1
Sometimes a small plaque yellowish tint is formed from the sedimentation of light pieces of dust or soot, and if these particles do not affect the plastic, then remove them is quite possible. Try to clean up plastic using conventional soap and a sponge or brush, if the surface of the object is not afraid of scratches.
2
Try to use alcohol – methanol, ethanol, isopropanol, etc., what you will find. But just keep in mind that all chemical tests should be conducted in a well ventilated area, wearing gloves, and in some cases, and goggles. And not to spoil a thing, it is better to try cleaning first, a small piece of plastic in an inconspicuous place.
3
In stores that sell computer equipment and supplies, there are prepared wipes for cleaning plastic and monitors, impregnated with a special compound. To clean and whiten them a little plastic, you can quickly and without damage.
4
Different companies offer sprays-cleaners for plastic, which can restore the original color of the surface, to freshen it and cover with a thin film for antistatic protection. In showrooms are also sold plastic cleaners and polishes – reducing plastic, on a liquid basis, which you can also try to handle the right thing.
5
Plastic parts soak overnight in one of the cleaning detergents with chlorine, for example, chlorine bleach or hypochlorite.
6
Take a tablespoon of soda ash and washing powder, dilute with a liter of water and place the plastic on a few hours in this solution.
7
To whiten yellowed plastic can be attempted by applying the product to lighten the hair, in particular, the perhydrol with an oxidizing agent. Double plastic processing such a composition sometimes gives excellent results.
8
Another option is the use of perhydrol in combination with a powder bleach-stain remover. First, treat the plastic with soapy water, then place it in the specified solution of perhydrol. The right amount of powder is achieved by experience – around two tablespoons per litre of water (if enough is added), but you must make sure that during chemical reactions the perhydrol not much heated. To speed up the reaction are advised to use an ultraviolet lamp.
9
Plastic can also try to rinse with acetone. But keep in mind that some types of material it dissolve. Take cotton wool and soak it with acetone so that the processing things avoid drips. Need to wipe quick, horizontal motion, from the top down.
10
If you failed to remove yellowing due to changes in the structure of the plastic, you can try to upgrade the thing by painting it with spray paint.

Advice 2 : How to whiten underwear

Underwear gradually loses its lustrous sheen and starts to look untidy. To restore yellowed white or gray things, came up with quite a lot of different tools, so if you want things can be "reanimated".
How to whiten underwear
You will need
  • - bleach;
  • powder;
  • - salt and soda;
  • - hydrogen peroxide.
Instruction
1
Things made of cotton or linen can be boiled. For this purpose it is better to use purified water, benefit of it must not so much. Pour water into an enamel bowl (a bowl or bucket, add detergent and a little bleach, and put on fire to boil. Do not forget to stir. Once things let the sauce to boil for 30-40 minutes, well otbrosit them in clean water. But it's worth noting that after boiling the clothes may slightly shrink in size.
2
With each wash, add a bit of baking soda and salt. If you wash in the machine, that will suffice 2 tsp salt and 3 tsp. of baking soda. Of course, linen does not blanch the first time, but it gradually returns to previous form.
3
Soak the linen in cold water with oxygen bleach overnight. In the morning wash it by hand and rinse in clean water. To use for this purpose, the boiling water is not recommended, as bleach at high temperatures has a negative impact on the fibres.
4
Dissolve 2 tbsp of hydrogen peroxide in a liter of water and soak in the resulting solution linen. The bleach perfectly whitens and brightens fabric color.
5
At hardware stores sell special detergents for lingerie. Method of use described on the package. If you decide to use it, then first read all the guidelines, otherwise things may be permanently damaged.
6
To maintain the white appearance from underwear,, use the powder with optical bleach from leading brands. If you have dirty water (a yellowish tint), pre-boil and defend it. Then drain in a basin, and linen wash only in clean water by hand.
Useful advice
Do not attempt to bleach underwear citric acid. It gives a yellow tint to things. To use it is pointless.

Advice 3 : How to bleach baby clothes

The child grows, learns by trial and error, so the clothing remains a lot of spots. And natural fabrics very well save them. Laundry service daily, and sometimes several times a day, takes a lot of time and effort, we want things the child was not only safe but also clean and without spots. How to deal with stubborn remnants from the knowledge of the world?
How to bleach baby clothes
You will need
  • - boiling water,
  • - stain remover
  • - liquid powder,
  • - potassium permanganate,
  • - vinegar,
  • -hydrogen peroxide,
  • - white.
Instruction
1
Most often, the baby's clothing stains from food. And the most difficult to display signs of berries and juice, but if the stain is fresh, it is possible to cope with the task will fail. This can be done using a conventional boiling water. Boil two liters three water-stained thing pull over capacity (just pull and not put it in a bowl) and pour boiling water over the contaminated place until, until the stain is gone. If thing small, then just put it in the sink and also pour the boiling water pollution.
2
To bring the old stain from the juice, you can use modern tools to remove stains. In the lines of baby detergents have bleach. It is best to sprinkle or pour onto soiled surface a little money, wait a few minutes and then wash with baby powder. Washes are often well ingrained in the fabric mud soap.
3
To remove the most persistent stains it is better to use the grandmother's method: potassium permanganate, vinegar and hydrogen peroxide, cotton pads. Dissolve a few crystals of potassium permanganate in vinegar (the solution has to be beet color, make sure the crystals are completely dissolved. Soak a cotton pad in the solution and RUB them a spot. Don't worry - the fabric is a bit darkened. Clean cotton pad soaked in hydrogen peroxide again RUB the stained place – the fabric is discolored. Note that this magic method is suitable only white or firmly-painted things.
4
Grass stains. Scrub fabric liquid detergent with enzymes. Wait a bit, then rinse under running hot water.
5
Stains from sauces and ketchup. Rinse the contaminated area on the fabric inside out under cold running water. To spot has not spread, you can put under the fabric of cotton or linen napkin, then it will soak into the substrate. Initially treat with liquid detergent, if necessary, brush the top layer of dirt but do not RUB. After the substance is absorbed, rinse with water. If not, put the baby thing in warm water for thirty minutes, and repeat the procedure again.
6
For the most persistent stains on white things or white fabric with a printed pattern you can use radical means - white. Simply add in accordance with the instructions on the packaging and soak the thing or pour on the stain. Just be sure to thereafter wash the clothes and rinse thoroughly to avoid the smell of bleach.

Advice 4 : How to whiten yellowed things

White stuff from frequent washings, contaminants, exposure to sunlight, improper care over time turn yellow. How to return the beloved underwear or clothing original white?
How to whiten yellowed things
You will need
  • - ammonia;
  • chemical bleaches;
  • hydrogen peroxide;
  • - salt;
  • - dairy products (yogurt or kefir);
  • - broth white beans;
  • washing powder, soap.
Instruction
1
When washing, add water ammonia. It will soften the water and neutralize the salt, which color white things yellow.
2
To bring back the original color things help chemical bleaching agents. However, their frequent use leads to fragility of fabric. So you need to be careful with their application and comply with all guidelines for use.
3
Helps to whiten yellowed things hydrogen peroxide. First, wash linen with detergent powder or soap in the washing machine or by hands. Rinse and wring well.
4
Then soak in a solution: 10 liters of warm water 10 tablespoons of salt, 3 liters of 3% hydrogen peroxide, 5 tablespoons of ammonia and 50 grams of washing powder. After 3-4 hours, rinse the linen in pure water.
5
The old fashioned grandma way to whiten things – boiling. Take a metal basin, bucket or large pot with water and put on the stove. Bring the water to a boil. Then, add washing powder or bleach.
6
Immerse the linen into the water and simmer for 20-30 minutes, stirring occasionally with a stick. Remove pot from heat, cover and leave overnight. Then rinse thoroughly things.
7
Yellow stains from the champagne or white wine will help bring yogurt or sour milk. Apply a small amount of fermented milk product on the stain. RUB well, so it was absorbed into the fabric. Put the clothes in a basin and pour on top of yogurt or yogurt. If necessary, add a little water.
8
Leave for 2-3 hours. If heavily soiled can be soaked linen at night. Then rinse in clean water and wash in the usual way.
9
Wool things to wash in the broth and white beans. Pounds bean will rasarite in 5 liters of water. Strain and cool slightly. Wash the hair in the broth without adding soap means.

Advice 5 : How to bleach a t-shirt

T-shirts is a versatile clothing in the summer heat, and in cool weather. But for white t-shirts need special care. Sometimes such situations arise when expensive bleaches and powders with stains on white things do not. Or a white t-shirt yellowed or become grayish and losing still dazzling white.
How to bleach a t-shirt
Instruction
1
Make your t-shirts are not yellowing and do not become gray after washing, wash it separately from bright and colorful things. If it is composed of linen or cotton, wash separately from wool and synthetics. During washing in the washing machine to powder, add powdered bleach or pour bleach into the compartment for pre-wash. Be sure to look at the packaging. These tools must be suitable for use in an automatic washing machine and for washing white.
2
If you are afraid to use bleach, remember how a few decades ago coped with the problem of bleaching white things. At that time it was very popular boiling with white. This method will fit you only if your shirt is cotton. In 10 liters of water, add 500 grams of soda ash and 500 grams of chlorine. Solution leave for two days, then strain. Boil the shirt in this solution for at least two hours. But be aware that this method of whitening leads to the rapid release of tissue failure. And there are more gentle ways.
3
Also bleach t-shirt using potassium permanganate. Add in a bucket with hot water and a small amount of potassium permanganate to the water acquired a pale pink hue, and 200 grams of conventional washing powder. Then lower the bucket already washed the thing, top cover with polythene and wait until cool water. After this procedure, thoroughly rinse the shirt.
4
Still glaring whiteness of your belongings will help return the solution of hydrogen peroxide. A bucket or basin, fill with warm water and add hydrogen peroxide per 2 litres of water one teaspoon of 3% hydrogen peroxide. Add a handful of baking soda. The resulting solution down the t-shirt for 20 minutes. That bleaching was uniform, the thing periodically stir.
5
Before washing, soak the shirt for a couple of hours in the water with ammonia. It gives the underwear yellowing and softens the water. If the thing is very dirty, add 3 teaspoons of turpentine.
6
To emphasize the whiteness of the shirt, use blue dye powder. Put it in 4 layers of cheesecloth and drop into the cool water. Remove cheesecloth after water is painted in rich color. Then the solution stir and dip into it white.
Note
Remember that the white thing can lose its color not only from contamination, but also due to prolonged storage. That is why the dirty linen for a long time can not be stored

Advice 6 : What to do if you have yellow teeth

To remove the yellowness of teeth a variety of ways. Among them: self-whitening folk remedies at home teeth whitening professional products under the supervision of a physician hardware and whitening in a dental clinic. The choice of a particular method of dealing with yellowed tooth enamel depends on the cause of the problem.
White smile - a sign of health and beauty
Having a Hollywood smile is a dream of many, because it not only looks beautiful, but also symbolizes health and success. In fact, healthy white teeth do not exist in nature as the minerals responsible for the strength, give teeth a light yellowish tint.

The causes of intense yellowness of the teeth is very diverse. Repeated use of strong tea or coffee during the day leads to yellowing of the teeth due to the introduction of pigment into the tooth enamel. Smoking is fairly important etiological factor in the development of yellow coloration of the enamel, as the teeth become yellow from nicotine tars. Regular poor teeth brushing leads to the accumulation of plaque on enamel. Yellow teeth — a consequence of blood diseases and endocrine disorders.

From the cause of the color change of the tooth enamel depend on how to troubleshoot this problem.

Professional teeth whitening



If the teeth are yellowed from exposure to pigments, they can be bleached at the dental clinic to several tones by applying a special composition of the enamel and exposure to ultraviolet light, acids or laser.

At home, you can use professional tools: gel, sticks, adhesive strips. They are used according to the instructions. Also at the pharmacy you can purchase whitening toothpaste that is abrasive substances contain chemicals.

Rinsing the mouth with 3% hydrogen peroxide solution gives a good result, teeth become noticeably brighter. But this method is contraindicated for people suffering from tooth decay or other gum diseases.

Teeth whitening folk remedies



Among the popular methods of bleaching teeth is quite common is teeth cleaning a puree of fresh strawberries or rinsing the mouth with her juice. The therapeutic effect due to the action of fruit acids, in large quantities contained in strawberries.

At home to deal with yellow teeth, you can use ordinary baking soda. To do this, simply dip a toothbrush into the solution or powder of baking soda and brush your teeth. After this procedure, they become whiter, but can be injured and hurt gums. In addition, the soda can damage the top layer of tooth enamel, so use it as a bleaching agent, it is possible not more often than once per month.

Wood ash good for my teeth. It contains a lot of potassium hydroxide – compound with bleaching properties. Microscopic crystals of this substance eliminate plaque in hard to reach areas, making the teeth clean and white. Wood ash mixed with toothpaste or use in its pure form, directly causing the toothbrush.

Advice 7 : What is different plastic from plastic

In society there is a perception that plastic and plastic is a different material that differ from each other quality. Supposedly the plastic is stronger and better. Plastic, according to the allegations, the lower quality and fragile. This is a myth and nothing more.
Plastic is the main material for the production of goods for everyday use.

What kind of material is plastic



Plastic, it is plastic, is organic material, which are synthetic or natural high-molecular compounds, so-called polymers. Especially wide application in the production of got plastic on the basis of synthetic polymers.

The name of this material implies that under the influence of heat and pressure it can take a given shape and store it after cooling or curing. In fact, the process of manufacture of plastics represents the transition of the material from viscous to solid state.

The history of plastic



The history of plastic begins in 1855. It was received by English Metallurgist and inventor, Alexander Parkes named parkesine. A little later she had another name - the celluloid.

The development of plastics as materials started with the use of natural components, possessing good ductility, chewing gum and shellac. A little later began to be used chemically modified natural materials - rubber, nitrocellulose, collagen and galalith. As a result, their production has come to the use of fully synthetic molecules, bakelite, epoxy, polyvinyl chloride and polyethylene.

For a long time parkesine was the brand name of the first artificial plastic was made from cellulose treated with nitric acid and solvent. In the second half of the 19th century it was often called faux ivory.

In 1866, the year Alexander Parkes created my own firm, involved in the mass production of parkesine. But after two years she broke, as Parkes tried to reduce costs of production, and it's detrimental impact on the quality of the final products.

Successors parkesine steel xylonite, which was produced by Daniel Spillum, a former employee of the parks and celluloid, produced by John Wesley Hyatt.

The origins of misconceptions



Plastic and plastic — the same material. And the difference between them comes down only to the point of view of the Russian language. "Plastic" is the short name for plastic, but due to the nature of the advertising of the filing of this words it has become associated in the consumer with high quality and reliability. Moreover, thanks to the competent advertising formed the opinion that plastic products are manufactured exclusively in Japan. Plastic was considered a product of poor quality, fragile, brittle and even harmful, if it was made in China or third world countries.

The way of presenting information about plastic affects only the perception of the consumer – positive or negative - but not on the quality of this material.
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