Characteristics of polyester as a filler for insulation

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Published: 06/25/2021

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Natural insulation materials are good, but they cost a lot of money. This is probably why manufacturers are increasingly using synthetic materials. Among the most popular is polyester filling. It is also a polyester fiber, which is used in sewing winter and demi-season outerwear, as well as bedding.

• 1 Composition and production technology
• 2 Positive and negative characteristics
• 3 Range of polyester fillers
• 4 Types by density
• 5 Tips for washing and drying 5.1 Outerwear
• 5.2 Blankets and pillows

History of origin and manufacturing technology of filler

Polyester insulation is the name of a fiber created on the basis of polyethylene terephtharate. The material appeared in the first half of the 20th century. and was mainly used in chemical, automotive, food and other industries. Mass distribution began a few years later, in the 1960s, when it was discovered that fabric clothes do not wrinkle and practically do not get dirty. In addition, the cost of insulation for polyester clothing was much cheaper.

Material polyester

Important! The name differed in different countries: in the USSR it was lavsan (later synthetic winterizer), in the USA and Europe - polyester (or foamed polyester), Dacron, Melinex, etc.

The starting material for insulation is fiber obtained from gas and oil products. Production consists of several stages:

• The raw materials are pre-prepared: cleaned and loosened.
• The purified raw materials are pressed through dies (special molds), after which fibers are obtained.
• The fibers are dyed and processed, then formed into a cloth.
• The canvas is undergoing final finishing.

Important! The properties of the finished material largely depend on the method of bonding the fibers in the fabric.

Insulation in clothes

Experts' warning.

1) Due to the fact that this insulation (holofiber) is a completely artificial material, its use is strictly limited. It (holofiber) can be used as inter-crown insulation in wooden houses and bathhouses during construction from dry (force-dried) logs and timber. Typically, in the construction of wooden houses, dry timber can only be called laminated timber, made from forced-dried lamellas.

2) For wooden houses and bathhouses made of timber with natural humidity, it is best to use natural inter-crown materials - seals made of jute or flax. It is also recommended to lay logs and beams of natural moisture with natural forest material - cuckoo flax moss or sphagnum moss.

Photo: for assembling houses and bathhouses from logs of natural moisture (not force-dried), it is best to use inter-crown jute tape - 100 percent natural insulation.

Photo: for assembling houses and bathhouses from logs of natural moisture (not force-dried), it would also be a good choice to use cuckoo flax moss to line the logs and beams.

Types of materials and their main characteristics

Polyester is the name of the substance from which different types of fillers are made. Due to differences in manufacturing, they have different characteristics and are designed for different weather conditions.

100% polyester insulation

Polyester filler was popular in the USSR, but today it is used much less frequently. This is due to its shortcomings: it caked, lost its shape, and could not be washed often. Today, other materials are used for outerwear and blankets: isosoft, holofiber, etc.

You may be interested in this Features and applications of acoustic felt

Holofiber

Hollofiber is a non-woven synthetic material made from hollow polyester fibers twisted in a spiral. Its feature is the soldering of fibers using high temperatures (in the rest they stick together). The material has a high level of heat and sound insulation, allows air to pass through well, but retains moisture, is resistant to washing and physical impact, holds its shape well and restores it. The material is also hypoallergenic, it does not harbor insects and does not accumulate dust.

Holofiber insulation

Thinsulate as an innovative insulation

The second name is artificial swan down. Initially it was used as insulation for space assemblies; today it is also used in the manufacture of outerwear. Can be worn at temperatures down to -40 °C, does not absorb odors and water, and does not interfere with air circulation. Also, the material is quite thin and light, easy to wash and clean, and does not wear out over time.

Thinsulate insulation

Isosoft

This is a modern insulation, the fibers of which are coated with special polymers to enhance heat-insulating properties. They are highly twisted and the fibers are often spherical in shape. The filler is used in pillows, blankets, sleeping bags, and winter outerwear. Depending on the density, the material can withstand from -10 °C to -30 °C. Isosoft allows air to pass through well, while retaining heat, is not subject to deformation and does not require special care.

Isosoft insulation

Sintepon

Sintepon is a synthetic insulation whose fibers are glued together using needles, glue or high temperatures. It was received in the mid-30s. XX century in England, it came to the USSR only in 1949. The material is quite light and comfortable to wear, does not deform (subject to temperature conditions), does not get wet and has a high level of thermal insulation.

Insulation synthetic winterizer

Sintepooh

It has all the advantages of natural fluff, but is obtained artificially. In its production, silicone treatment is used, which prevents the product from bunching up. Synthetic down can withstand down to -30°C, does not pill when washed, quickly takes its original shape and dries. When worn, the effect of a “steam room” is not created, since the air passes well through the synthetic fluff, but the heat does not escape.

Synthetic insulation

Men's insulated jacket Outventure

1. 46
2. 48
3. 50
4. 52
5. 54
6. 56
7. 58

• Description
• Characteristics
• Reviews (5)

This insulated jacket from Outventure is a great option for hiking.

• WATERPROOF
  ADD DRY membrane protects against getting wet.
• OPTIMAL MICROCLIMATE
  The material removes excess moisture, providing a comfortable microclimate.
• WIND PROTECTION
  The jacket is made of windproof fabric with an ADD PROTECT membrane.
• KEEP THE WARM
  Innovative +ADD X-WARM cross-fiber insulation for superior cold protection.
• FREEDOM OF MOVEMENT
  The ergonomic cut of the jacket does not restrict movement.
• ADDITIONAL WEATHER PROTECTION
  Adjustable hood and cuffs protect against cold and wind.
• PRACTICAL
  4 spacious pockets allow you to keep your essentials close at hand.

The recommended temperature for this model is up to +5° C, based on average physical activity - walking 4 km/h.

Which is warmer: synthetic winterizer or polyester?

Polyester is the general name for all insulation materials made from polyester fiber. Sintepon is one of the varieties of polyester. In other words, it is impossible to say that polyester is a padding polyester, and it is also impossible to compare materials.

You might be interested in Features of the properties of taslan fabric and its use

Of the above, the warmest is Thinsulate, designed for extreme temperatures.

Important! For children, it is recommended to choose isosoft and holofiber, as they are environmentally friendly, affordable and easy to clean at home.

What is the density of polyester insulation up to what temperature and for what weather?

The density of the insulation is calculated as the weight of the material per 1 m². The higher the density, the lower the temperature it can “survive”.

Each material will have a different meaning. For example, for padding polyester and isosoft the values ​​will be as follows:

• 50 g/m² - for +15 °C;
• 80 g/m² - for +10 °C;
• 100 g/m² - for +5 °C;
• 150 g/m² - for -5 °C;
• 200 g/m² - for -10 °C;
• 300 g/m² - for -20 °C;
• 400 g/m² - for -25 °C.

For holofiber they are slightly different:

• 100 g/m² - for +5-10 °C;
• 150 g/m² - from +5 °C to -10 °C;
• 200 g/m² - for -10-20 °C;
• 300 g/m² - for -25-30 °C.

Important! Thinsulate is mainly used for sewing professional items (suits for alpine skiing, divers, etc.), it can withstand up to -60-65 °C.

Thinsulate in rolls

In order not to make a mistake when purchasing, you should focus on the temperature table of a specific manufacturer.

How to choose quality insulation

When choosing insulation or ready-made clothing, you should follow some rules:

• Basically, all insulation materials have similar characteristics, but they may differ in details. For example, some materials are a product of secondary petroleum processing, which means they are more allergenic;
• It is worth paying attention not only to the obvious advantages, but also to inconspicuous disadvantages. For example, 100% polyester quickly deforms with frequent washing; it should not be purchased for children or for branded clothing;
• It is important to focus on the temperature that the material can withstand. Manufacturers usually indicate the minimum and maximum;
• an unfamiliar name for a material does not always mean a new product; it may be an already familiar insulation material, but under a foreign name.

Selection of down jackets

our recommendations

When choosing fiberglass as a sound and heat insulator, it is worth considering that high-density material retains heat less well. In addition, high-density glass wool (from 30 kg/m3) is more expensive.

Areas where glass wool is best suited are roofing and interior work. It is not suitable for foundations and facades that require greater density from the material: fiberglass will be more difficult to install, but, most importantly, it will cost much more and retain less heat.

In our online store you can buy fiberglass at a discounted price.

How to choose winter clothes with synthetic filling

When choosing winter clothes, you should pay attention to some nuances:

• the filler should hold its shape well. To check, you should strongly squeeze the sleeve or other place and see how quickly the jacket “recovers”;
• the more machine stitches there are on the polyester (lining), the more cold air it lets through;
• Clothing should fit snugly to the body near the throat, at the cuffs and at the bottom. For better thermal insulation, there may be a double layer of insulation on the back and hem;
• it is important to pay attention to the fabric itself and the lining;
• the inside of the down jacket should be divided into small cells filled with insulation. This way the inner material is evenly distributed throughout the clothing and does not roll or crumple.

You might be interested in this. Detailed description of Velsoft: what such fabrics are made of

Cell division example

Important! When choosing clothes with natural insulation, the rules will be different.

Where is it used?

Polyester filler is used in many areas:

insulation of houses; car seat filling; insulation of sports items, outerwear; making quilted lining; the inside of pillows, blankets; filling soft toys, sides of cribs; production of thermal underwear, sleeping bags; making the insides of autumn and winter boots.

Various materials are made from polyester fibers. They are becoming more and more popular.

Lining fabric

Polyester lining material is used for the following products:

trousers, dresses, skirts, suits; jackets, jackets, coats; winter jackets and overalls.

The polyester lining does not wrinkle or stretch, and remains in its original form for a long time. It does not allow moisture and heat to pass through. Winter polyester lining fabrics are supplemented with thermal protection.

Rules of care

Polyester is not demanding and easy to care for:

• it can be washed at a temperature of 30-40 ° C;
• To prevent the insulation from clumping, you can wash tennis balls with a down jacket. They will prevent the filler from crumpling;
• When washing white items, you can use any universal detergent; for colored items, you can use detergents for colored or delicate fabrics to preserve the color;
• Dry away from direct sunlight. It is best to shake the clothes and hang them on hangers;
• Polyester usually does not require ironing, but if necessary, you can iron it on the delicate or “Silk” mode using a damp cloth;
• You can store things in any form.

Washing a down jacket with balls

Women's insulated jacket (autumn-winter) Outventure

• Added: at 14:24, October 13, 2020
• Views:19
• Advertisement number: 672351148

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Reviews

In most cases, reviews of polyester insulation are positive, regardless of the specific material.

Sergey, 45 years old, Samara: “I bought a jacket with Thinsulate filling and was very surprised: if I go out at -20°C it’s hot, -25°C is hot, even at -30°C I can walk in a T-shirt. Then I read that Thinsulate is an insulation material for the harshest conditions; it doesn’t care about the Moscow frost. I’m extremely pleased with the jacket, although it’s a bit hot.”

Natalya, 32 years old, Vologda: “I was choosing a children’s overalls (an active 5-year-old boy) and settled on isosoft. Frequent washing does not deteriorate, does not clump, dries quickly - very convenient.”

Polyester filler - what is it? This is the general name for artificial insulation for outerwear. It is divided into several types: padding polyester, synthetic down, holofiber, isosoft, etc. These materials have similar characteristics, but differ in small details, which must be taken into account when choosing so as not to be disappointed in the purchase.

We choose sports bestsellers for cold autumn in NEW AGE from Merrell, Outventure, Adidas

Before we have time to blink an eye, the thermometer will quickly slide down and the air will be filled with damp coolness. There will be more cloudy days than sunny days. The transition to warm clothes is psychologically difficult for many. It seems like yesterday I was wearing a T-shirt with shorts, and a couple of days later I need to wear a lined jacket, fleece pants and insulated sneakers.

In fact, you can get through this period quite simply if you buy a couple of comfortable things in the NEW AGE pavilion.

Transparent prices, authentic brands, always new collections.

Merrell technical jacket . The 10,000 mm M Select XDRY membrane, complete with fully taped seams and waterproof zippers, provides reliable protection from precipitation. The hood and adjustable cuffs help keep you warm. The articulated cut allows you to move freely and naturally. Reflectors will make you more visible in the dark or in bad weather. The recommended temperature for this model is up to -10° C, based on average physical activity - walking 4 km/h.

Outventure jacket is what you need for walking or traveling in cold weather. Synthetic insulation +ADD WARM warms well. And the water-repellent treatment +ADD DRY (Water Repellent) protects against light precipitation. The recommended temperature for this model is up to -10° C, based on average physical activity - walking 4 km/h.