RU2678169C1 - Multi-layer package of materials for outerwear - Google Patents

Abstract

FIELD: satisfaction of human vital requirements.SUBSTANCE: invention relates to light industry and can be used for making outerwear for adults and children. Multi-layer package of materials for outerwear includes four layers of materials. Top layer is made of raincoat fabric with water-repellent impregnation and thermal lamination. Second layer is a polyester fiber insulation. Third layer is made in the form of a polyester mesh made of polypropylene. Lower layer is made in the form of a membrane of foamed polytetrafluoroethylene. In this case, the layers are interconnected by the method of calendering and multi-needle stitches.EFFECT: technical result of the claimed invention is to increase the hydrophobicity, thermal insulation and breathability of a multi-layer package of materials.7 cl, 5 dwg

Description

The invention relates to light industry and can be used for the manufacture of outerwear for adults and children.

Known top heat-saving clothing, for the manufacture of which a multilayer package of materials is used, including top material, lining material, a layer of insulation material. A layer of insulation material is placed between the top material and the lining. The layer of insulation material has a characteristic surface. One site with increased thermal insulation ability, including a layer of insulation material having a characteristic surface, is provided with a lining made of transparent material (RF Patent No. 142643, IPC A41D 13/00, published on June 27, 2014).

In the known solution, a low-elastic insulation material is used, which gives volume to the product, “bloating”, the product is characterized by high air permeability.

Also known is a multilayer package of materials for outerwear, including four layers: the upper woven twill weave of polyester and viscose fibers and the lower layer of a polyamide warp knitted knit fabric of weaving. Between the upper and lower layers there is a bicomponent laminate membrane from a dry-wet deposited method on a polytetrafluoroethylene membrane of a polyether urethane coating. The lower knitted layer is connected to the polyester urethane coating with polyurethane adhesive (RF Patent No. 2167702, IPC B01D 71/36, publ. 05.27.2001 - prototype).

A disadvantage of the known technical solution is not the ability to simultaneously provide water-repellent properties, heat and breathability of a multilayer package of materials.

The technical result of the claimed invention is to increase the hydrophobicity, thermal insulation and breathability of a multilayer package of materials.

To achieve the technical result in a multilayer package of materials for outerwear, including four layers of materials according to the invention, the upper layer is made of raincoat with water-repellent impregnation and thermolamination, the second layer is a heater made of polyester fiber, the third layer is made in the form of a polyester mesh of polypropylene and the lower layer is made in the form of a membrane of foamed polytetrafluoroethylene, while the layers are interconnected by calendaring and multi-needle with tezhi.

In this case, the raincoat fabric of the first layer has a density of 30-500 g / m ² .

The insulation of the polyester fiber of the second layer has a density of 50-600 g / m ² .

The polyester mesh of the third layer has a density of 5-30 g / m ² .

The lower layer in the form of a membrane of foamed polytetrafluoroethylene is made with a thickness of 5-30 microns.

The foamed polytetrafluoroethylene of the lower layer has a density of 0.0005-0.00030 g / m ² , water permeability of 5000-20000 mm H ₂ O per 1 m ² and steam removal of 5000-20000 g H ₂ O per 1 m ² in 24 hours.

To connect the layers using strands of synthetic fibers.

The claimed multilayer package of materials for can be used for the production of everyday outerwear and sportswear for children and adults. From the proposed fabric material, for example, products such as a jacket or overalls can be produced. The proposed material can be used for the production of outerwear for children from 3 to 14 years.

A multilayer package of materials for outerwear (thermal pack) can represent a huge number of variations, depending on the pattern and additional properties of the thermal lamination layer, the density of the raincoat fabric and the pattern of digital printing on it, the density (thickness) of the insulation and the pattern of stitches. The thickness of the insulation is selected depending on the climatic zone and the intended purpose of the products. In the case of use for children's clothing, a type of insulation is specially developed and meets the requirements for products for children.

The implementation of the first (top layer) multilayer bag of raincoat fabric with water-repellent impregnation and thermal lamination has the following advantages:

- improves the decorative properties of the fabric, namely it gives the outer layer a characteristic glossy sheen, creates an additional volumetric pattern, when using special solutions it gives the fabric special qualities - light reflection, fluorescence (glow in the dark), metallic sheen;

- preserves the water-repellent properties of raincoat fabric, without thereby violating the hydrophobicity of the package;

- retains the breathable properties of the multilayer package;

- improves the thermal insulation properties of the fabric;

- increases the strength and resistance to abrasion of the outer layer of tissue;

- maintains the performance of the fabric (the fabric remains soft and flexible, comfortable when sewing, as well as when wearing and washing).

When creating a water-repellent coating on raincoat fabric, environmentally friendly materials are used. Physico-mechanical and other indicators of the upper layer of raincoat fabric comply with GOST 28486-90. The density of the upper layer may be from 30 to 500 g / m ² .

The implementation of the second layer - insulation of 100% polyester fiber, allows you to reliably keep heat and provide comfort and freedom of movement. The insulation has a small weight and volume, so that products with it are very convenient for sewing and operation. Due to the special structure of the fibers that repel each other, the insulation has a small volume and weight, but at the same time very high heat-preserving properties. This quality helps to make products not only warm, but also compact, due to which the consumer is not constrained in movements. Also, this material (insulation) has breathability and does not interfere with the removal of steam from the body even with high activity. The material does not cause allergic reactions and is 100% safe for health. The insulation meets the requirements of TU 8391-011-18130826-2015. Its environmental safety is certified by Oeko-Tex® Standart 100 Class I "Confidenceintextiles". The density of the second layer (insulation) can be from 50 to 600 g / m ² .

The implementation of the third layer in the form of a polyester mesh (non-woven material) of 100% polypropylene allows, first of all, to protect the membrane (lower layer) from damage by insulation fibers during calendering. The polyester mesh has increased strength and resistance to heat. In addition, the polyester mesh provides additional thermal insulation without violating the vapor-discharge qualities of the membrane. The density of the third layer can be from 5 to 30 g / m ² .

The implementation of the fourth (lower) layer in the form of a membrane of 100% foamed polytetrafluoroethylene provides complete wind insulation. The membrane is an innovative material of a new generation that allows you to create “smart tissue”. The membrane is the thinnest canvas filled with micropores of a special structure. These micropores are 20,000 times smaller than a drop of water, but 700 times larger than a vapor molecule, and because of this, water droplets cannot penetrate through the material, but the vapors from the body are freely removed. Due to this, the highest operating comfort is achieved - the fabric is completely hydrophobic and at the same time allows you to maintain a comfortable temperature and humidity of the body. The membrane also provides absolute protection against wind, thereby increasing thermal insulation. Additional advantages are ease of use: the membrane is lightweight, that is, it does not burden the fabric, and it is also elastic, so the product does not hinder movement. The lower layer may have a thickness of 5-30 μm. The density of the lower layer can be 0.0005-0.00030 g / m ² , water permeability of 5000-20000 mm H ₂ O per 1 m ² and steam removal - 5000-20000 g H ₂ O per 1 m ² for 24 hours.

The use of multi-needle stitches to connect the layers together increases the thermal quality of the multilayer (capsule) package by holding the layers together and creating additional useful volume. Also, this type of processing increases the aesthetic appeal of the fabric and makes it more practical when sewing and operating products.

In the manufacture of layers of a multilayer package of materials, the calendering method is used (fabric skipping between the system of heated steel shafts) - finishing to smooth, densify the fabric, giving it smoothness, glossy shine.

To connect the layers using multi-needle stitches, threads of synthetic fibers, for example, of lavsan, can be used.

Thus, the totality of the functions of each layer provides the highest protection against cold from the outside (which eliminates hypothermia), as well as the removal of body fumes (eliminating overheating and unpleasant sensations due to sweating), creating an optimally comfortable body temperature, which is especially important when sewing clothes. That is, thanks to the special qualities of each layer, as well as their correct sequence, the combined multilayer package (capsule thermal package) has unique qualities that combine hydrophobicity, high thermal insulation and breathability. The use of the technology of thermal lamination of the outer layer allows you to give the fabric special decorative properties, which cannot be obtained using other methods, while maintaining all the technological properties of the bags and improving some of them (thermal insulation, strength). In addition to decorative qualities, the features of thermal lamination increase consumer safety by improving the visibility of products in the dark.

The invention is illustrated by the following graphic materials:

in FIG. 1 shows a sectional view of the structure of a multilayer material package for outerwear;

in FIG. 2 shows a photo of the upper layer of raincoat fabric;

in FIG. 3 shows a photo of the layer (insulation) under the microscope;

in FIG. 4 shows a photo of a layer (polyester mesh) under a microscope;

in FIG. 5 shows a photo of a layer (membrane) under a microscope.

A multilayer package of materials for outerwear (Fig. 1) is a capsule package of four layers of material: the first (upper) layer 1 is made of raincoat fabric, the next (second) layer 2 is a polyester fiber insulation, the third layer 3 is made in the form of a polyester mesh made of polypropylene, the fourth (lower) layer 4 is made in the form of a membrane of foamed polytetrafluoroethylene. The first (upper) layer 1 of raincoat fabric is made with water-repellent impregnation and thermal lamination 5.

The layers of the multilayer package are interconnected using multi-needle stitches (using filaments of synthetic fibers).

Due to water-repellent impregnation, layer 1 made of raincoat fabric does not absorb water - water droplets will roll off the outer surface of raincoat fabric (see photo in Fig. 2).

The structure of the insulation (layer 2), consisting of individual fibers (see photo in Fig. 3), allows you to reliably keep heat.

In FIG. 4 shows a photo of a polyester mesh (layer 3) under a microscope, which has increased strength and resistance to heat.

In FIG. Figure 5 shows a photo of the membrane (layer 4) under a microscope with micropores, thanks to which the membrane does not pass water droplets through the clothes, but allows vapor of body moisture to evaporate and bring them out.

Products made from the proposed multilayer material package were tested. Products manufactured using the proposed materials comply with the customs regulation of the Customs Union 007/2011 "On the safety of products intended for children and adolescents" (Declaration of Conformity TC N RU D-RU.AB50.V.01763 and TS No. RU D-RU.TP05. B.09640).

Thus, the proposed composition, sequence of arrangement and manufacturability of its individual components provides unique properties of the entire multi-layer capsule package of materials for clothing, which allows for increased thermal insulation, water repellency, breathability, vapor removal, softness and elasticity (tactile advantages), as well as lightness, strength, wear resistance and ease of use in the clothing industry.

Claims (7)

1. A multilayer package of materials for outerwear, including four layers of materials, characterized in that the upper layer is made of raincoat fabric with water-repellent impregnation and thermo-lamination, the second layer is a polyester fiber insulation, the third layer is made of polypropylene polyester mesh and the bottom the layer is made in the form of a membrane of foamed polytetrafluoroethylene, while the layers are interconnected by calendaring and multi-needle stitches. 2. A multilayer package of materials for outerwear according to claim 1, characterized in that the raincoat fabric of the first layer has a density of 30-500 g / m ² . 3. A multilayer package of materials for outerwear according to claim 1, characterized in that the insulation of the polyester fiber of the second layer has a density of 50-600 g / m ² . 4. A multilayer package of materials for outerwear according to claim 1, characterized in that the polyester mesh of the third layer has a density of 5-30 g / m ² . 5. A multilayer package of materials for outerwear according to claim 1, characterized in that the lower layer in the form of a membrane of foamed polytetrafluoroethylene is 5-30 microns thick. 6. A multilayer package of materials for outerwear according to claim 1, characterized in that the foamed polytetrafluoroethylene of the lower layer has a density of 0.0005-0.00030 g / m ² , water permeability of 5000-20000 mm H ₂ O per 1 m ² and steam removal 5000 -20000 g of H ₂ O per 1 m ² for 24 hours 7. A multilayer package of materials for outerwear according to claim 1, characterized in that for the connection of the layers using threads of synthetic fibers.

Images