Does 85% polyester shrink?
8 mins read

Does 85% polyester shrink?

Polyester is a synthetic fabric that has become a staple in the textile industry. It is often blended with other fibers to create fabrics that are durable, wrinkle-resistant, and easy to care for. However, one concern that many consumers have is whether polyester fabrics shrink or not. In this article, we will answer the question – does 85% polyester shrink?

Understanding the composition of polyester fabrics

Polyester is a polymer made from an ester of dihydric alcohol and terephthalic acid. It is a synthetic fiber that is known for its resistance to shrinking, stretching, and wrinkling. When blended with other fibers, it can increase the strength and durability of the fabric. Polyester fabrics are lightweight, water-resistant, and retain their shape well. They are widely used in the textile industry to produce all kinds of garments, from underwear to outerwear.

One of the advantages of polyester fabrics is that they are easy to care for. They can be machine washed and dried, and they do not require ironing. However, one downside of polyester is that it is not very breathable, which can make it uncomfortable to wear in hot and humid weather. To address this issue, some manufacturers have developed polyester fabrics with moisture-wicking properties, which help to keep the wearer cool and dry. These fabrics are often used in athletic wear and other performance garments.

Factors that affect the shrinkage of polyester

Despite the general reputation of polyester as being resistant to shrinkage, there are several factors that can affect its behavior in this regard. The first is the temperature at which the fabric is washed and dried. Polyester fibers have a melting point of around 250°C, which means that they can shrink or melt when exposed to high temperatures. As such, it is recommended to wash polyester fabrics in cold or warm water, and to avoid drying them on high heat.

Another factor that can affect the shrinkage of polyester is the weave of the fabric. Tighter weaves are less likely to shrink than looser weaves, as the fibers are packed more closely together. Additionally, the presence of other fibers in the fabric blend can affect its behavior when exposed to heat and water. For example, if the polyester blend contains cotton, which is known to shrink, the fabric may be more prone to shrinkage than if it was 100% polyester.

It is also important to note that the quality of the polyester fibers can affect their shrinkage behavior. Lower quality polyester fibers may be more prone to shrinkage than higher quality fibers, as they may not have been treated or processed as thoroughly. Additionally, the way in which the fabric is cut and sewn can also impact its shrinkage. If the fabric is cut against the grain or sewn too tightly, it may be more likely to shrink or distort in the wash.

How to care for polyester fabrics to prevent shrinkage

To minimize the possibility of shrinkage in polyester fabrics, it is important to be mindful of how you care for them. Firstly, always read and follow the care label instructions on the garment. This will provide you with specific information on the temperature and method of washing and drying that is recommended for that particular fabric.

When washing polyester fabrics, use a mild detergent and avoid using fabric softeners, as these can cause a buildup of chemical residues on the fibers, which can contribute to shrinkage. Additionally, avoid overloading the washing machine, as this can cause excessive agitation, which can damage the fibers and lead to shrinkage.

When drying polyester fabrics, avoid using high heat as this can cause shrinkage or even melting of the fibers. Instead, it is recommended to air-dry polyester garments or use a low-heat setting on the dryer. If you must iron polyester fabrics, use a low heat setting and avoid direct contact with the iron.

Washing and drying tips to avoid polyester shrinkage

If you’re concerned about shrinkage in your polyester fabrics, there are a few additional tips that you can follow to minimize the risk. Firstly, wash your fabrics on a gentle cycle, using cool or warm water, and avoid harsh detergents that contain bleach or other chemicals. This will help to protect the fibers from unnecessary stress and damage.

When drying polyester fabrics, remove them from the dryer as soon as the cycle is finished, and avoid leaving them in the dryer for extended periods of time. This will help to prevent excess heat exposure, which can cause shrinkage or damage to the fibers. Additionally, it is recommended to air-dry polyester fabrics whenever possible, as this is the gentlest and safest method of drying.

Can shrinking be reversed in polyester fabrics?

If your polyester fabric has already shrunk, there is little that can be done to reverse the process. Some fabrics may be able to be stretched or manipulated back into their original shape to some extent, but this is not always possible. The best way to prevent shrinkage in polyester fabrics is to take proper care of them from the outset, following the guidelines on the care label and using gentle washing and drying methods.

Common misconceptions about polyester and shrinkage

There are many misconceptions about polyester and its behavior when exposed to heat and water. One common myth is that all polyester fabrics are non-shrinking, which is not true. While polyester is generally more resistant to shrinkage than many other fabrics, it is not completely immune to it. Additionally, many people believe that boiling polyester fabrics will not cause them to shrink or melt, but this is also false – exposure to high temperatures can be damaging to polyester fibers.

Comparing the shrinkage rates of different polyester blends

The amount of shrinkage that a polyester fabric experiences will depend on its composition and the conditions under which it is washed and dried. Different polyester blends may exhibit different shrinkage rates, even if they have the same polyester content. For example, a polyester/cotton blend may shrink more than a polyester/rayon blend, due to the differences in the properties of the fibers.

It is difficult to provide a general estimate of the shrinkage rate of polyester fabrics, as it can vary widely depending on the specific fabric and its composition. However, as a general rule, polyester fabrics that contain less than 70% polyester are more prone to shrinkage than those with a higher content of polyester.

Alternative fabrics to consider if you’re concerned about shrinkage

If you’re looking for a fabric that is less likely to shrink than polyester, there are several alternatives to consider. One option is to choose a fabric that is 100% cotton, as cotton is known for its stability and resistance to shrinkage. Another option is to choose a synthetic fabric like nylon or spandex, which are known for their durability and stretchiness.

Tips for selecting and buying non-shrinking polyester clothing

When shopping for polyester clothing, it is important to look for garments that are made from high-quality fabrics with a tight weave. Additionally, pay attention to the care label instructions, and opt for garments that can be washed and dried at lower temperatures. It is also a good idea to choose garments from reputable brands that have a proven track record of producing high-quality polyester fabrics that are resistant to shrinkage.

In conclusion, while polyester fabrics are generally more resistant to shrinkage than many other fabrics, they are not completely immune to it. To minimize the risk of shrinkage, it is important to follow the care label instructions and use gentle washing and drying methods. If you’re concerned about shrinkage, consider choosing alternative fabrics that are known for their stability and resistance to shrinking. With proper care, your 85% polyester fabrics can last for years without experiencing any significant shrinkage.