Washing clothes shrinks, why do clothes shrink after washing?

Steam 1. Steam and iron.

The shrinking sweater fibers are heated with a steam iron and then stretched with both hands while they are hot. According to experience, due to the limited heating area of the steam iron, in order to ensure that the fiber is stretched evenly, the sweater is made by partial, segmented, partial, and heated stretching. It is impossible to stretch the fiber a lot at one time, and it is necessary to heat and stretch it many times.

Before stretching, the total length of stretching should be known, so that the stretching length of each section is also counted, and the total length should be measured with a ruler after all the stretching, and if the length is not enough, it can be repeated. Pay special attention to the size not to pull over the head, and make appropriate adjustments at the end.

The operation should be carried out on the ironing table, or at home with a blanket on the table, and it is best to be heated and cooled by a portrait machine when all is completed.

2. Thick cardboard.

Use thick cardboard (cardboard for household appliance boxes) to cut into the size and shape of the original sweater, and the cut is best sanded with sandpaper to avoid hooking the sweater. Put the sweater on the cardboard, fix it with a few more clothespins at the lower feet, and then steam iron the sweater repeatedly with an electric iron on all parts of the sweater, and remove it after it has cooled completely.

Use fabric softeners to improve hand feel.

Put the washed clean sweater in the steamer and steam for about 15 minutes, then take it out and pull it to its original size by hand, and put it on the table to dry naturally. Save money without hurting your sweater.

A way to restore a shrunken sweater.

Fill the basin with warm water, drop a small amount of household ammonian water, and then dip the sweater in it, and the soap left on the wool will dissolve. Gently lengthen the reduced portion with both hands at the same time, then rinse with water to dry. When it is semi-dry, first pull it open with your hands, make it out of its original shape, and use an iron to iron it to restore its original size.

How to prevent sweater from shrinking.

The principle of washing sweaters is to wash them as soon as possible. Generally speaking, the more economical the laundry detergent you use, the easier it is to shrink the sweater, so it is better to add a little more laundry detergent to avoid the sweater becoming smaller.

What should I do if my sweater shrinks?

When the sweater shrinks, you can use the steam iron to evenly spread the steam on the sweater, and when the hair cuticle of the sweater is opened, the sweater can be moderately stretched, and the operation can be repeated several times to improve the shrinkage!

In order to be safe and effective, or to send it to the dry cleaner safely, now the dry cleaner has the ability to expand the shrinkage of the clothes.

Because clothing fabrics are generally made of warp and weft yarns, when the yarn absorbs water, there will be different degrees of expansion, resulting in an increase in fiber diameter. If the diameter of the weft yarn increases, the warp yarn must increase the length in order to maintain the state of the weft yarn.

When it dries naturally, the fabric retains its shrinkage form due to friction between the fiber yarns, which restricts the free movement of the yarns. After the fabric is dried, the area is often reduced, the thickness is increased, and the surface is uneven.

After the garment absorbs water and expands, the yarn diameter becomes larger, the yarns are closer to each other, and the fiber flexion rate increases. A portion of the yarn length is consumed on the curved part, which causes the fibers to shrink and become smaller. After the clothes are dried, it is difficult to return to their original state under natural conditions due to the presence of friction.

It depends on what kind of clothing fabric, and the reasons for shrinkage are as follows:

1. The clothes will be elongated by tensile action in the process of processing, and then fixed after heat setting, and when you wash it, the internal stress relaxation will return to the original size, and it will shrink.

2. The composition of the fabric is fiber, so the irreversible anisotropy capacity of the fiber will occur after washing, resulting in the size of the fiber becoming smaller.

3. There is also a problem of fleece shrinkage in wool products, because there are scales on its surface, so the problem of shrinkage and deformation will occur, and woolen sweaters should be paid attention to.

4. It is also related to the tissue structure and fiber characteristics.

It can be recovered in the following ways, first, soak the clothes with baby shampoo mixed with water for a period of time, gently stretch and dry them, second, soak the clothes in hot water for a period of time and hang them directly to stretch, third, put a towel inside the washed clothes, roll them up and keep them for a while, and stretch them when drying.

In addition to using baby shampoo to soak clothes, Sui Jing can also use vinegar, conditioner and other items instead, the effect is the same, but this method is more suitable for knitted fabrics, such as cotton, wool, cashmere, etc.

Hot water can make the fibers of the clothes swell, stretch and lengthen, and the shrunken clothes should not be wrung out after soaking in hot water, but directly hung up and stretched, and placed in a cool place to dry.

If there are conditions at home, the washed clothes can be spread on the table and ironed with an electric iron, so that the clothes can be restored to a certain extent.

You can use the following methods to recover, first, soak the clothes with baby shampoo mixed with water for a period of time, gently stretch it and dry it, second, soak the clothes in hot water for a period of time, hang them up and stretch them directly, and third, put a towel inside the washed clothes, roll them up and keep them for a while, and stretch them when drying.

In addition to soaking clothes with baby shampoo, you can also use vinegar, conditioner and other items instead, the effect is the same, but this method is more suitable for knitted fabrics such as cotton, wool, cashmere, etc.

Hot water can make the fibers of the clothes expand and elongate, and the shrunken clothes should not be wrung out after soaking in hot water, but directly hung up and stretched, and placed in a cool place to dry.

If there are conditions at home, the washed clothes can be spread on the table, and the trousers can be ironed with an electric iron, so that the clothes can be restored to a certain extent.

What to do if the clothes shrink after washing, the reason for the shrinkage of the clothes.

Clothes are generally interwoven with warp and weft yarns, when the clothes are washed in the process, the yarn will have a certain amount of water absorption, and then lead to an increase in the diameter of the fiber, in order to maintain a certain winding state, the warp and weft yarns will increase in length, resulting in shrinkage of the clothes.

Precautions for washing clothes.

Do not use boiling water to wash clothes, use warm or cold water, because boiling water will make some clothes fade and deform.

Sulfur soap-based soaps can fade clothes, so don't soak them in soapy water for too long.

Faded and light-colored clothes should be washed separately to avoid staining.

Underwear and socks should be washed separately.

When drying, shake off the clothes so that they don't wrinkle together after drying.

The characteristics of the fabric.

Cotton advantages: moisture absorption, breathability, softness, comfort. Disadvantages: easy to fold, easy to wrinkle, easy to deform;

Advantages of hemp: cool, breathable, moisture absorption. Disadvantages: easy to fold and wrinkle;

Fiber advantages, no fading, sag. Disadvantages: poor moisture absorption and air permeability.