Three-dimensional nonwoven fibrous textile material for protecting individual from cooling medium and method for manufacturing the same

FIELD: textile industry.

SUBSTANCE: three-dimensional nonwoven fibrous textile material is composed of netted woven carcass and layers of fibrous cloths arranged at both sides of carcass and mechanically attached thereto. Carcass is produced from thermoplastic weft threads with linear density of 29-72 tex and thermoplastic warp threads with linear density of 14-20 tex and surface density of 80-220 g/m2. Said threads are preliminarily subjected to shrinkage. Method involves applying onto melted netted woven carcass layers of fibrous materials and mechanically attaching said layer in alternation to each side; applying onto each side of carcass at least one layer of fibrous cloth and attaching it by needle stitching; subjecting nonwoven material to thermal processing at temperature of 80-1580C under pressure of 0.3-0.6 MPa for 40-120 min.

EFFECT: improved organoliptical properties and improved appearance of material.

3 cl

 

The invention relates to the domestic textile industry, in particular three-dimensional nonwoven fibrous textile materials for protection from chilled environment.

Known three-dimensional nonwoven fibrous material consisting of a woven mesh frame and two layers of polyolefin fleece, located on both sides of the frame and mechanically attached, RF patent №2100498, 1994 (analog).

The disadvantage of this technical solution is the inability to use it at home because it has a low organoleptic and hygienic properties, excessive rigidity, unattractive appearance. This non-woven material is applied for protection from ballistic attacks.

Known three-dimensional nonwoven fibrous textile material consisting of a woven mesh frame and two layers of fleece, located on both sides of the frame and mechanically attached to a bonding method, USSR author's certificate No. 393839,1969 (closest equivalent).

The disadvantage of this technical solution are low organoleptic properties, in particular hard vulture, due to the large number along the material looped bars, and traditional unattractive appearance.

The purpose of the claimed of the Britania is to eliminate these disadvantages and to obtain a new range of textile materials which is more attractive in a domestic relationship.

This goal is achieved by the fact that in the three-dimensional nonwoven fibrous textile material for protection from chilled medium consisting of woven mesh frame and layers of fleece, located on both sides of the frame and mechanically attached thereto, the frame is made from subjected to shrinkage of the synthetic thermoplastic yarns with a linear density of 29-72 Tex duck and 14-20 Tex based weighing 80-220 g/m2.

The goal is additionally achieved that each fibrous layer has a surface density of 200-500 g/m2and contains twisted fiber length of 50-150 mm of wool or synthetic fibers, or mixtures thereof.

This goal is achieved because of convoluted fiber made of wool Marinoni sheep.

A method of obtaining three-dimensional nonwoven fibrous textile material comprising alternately applying on both sides of the woven mesh frame in the expanded position of fibrous materials with subsequent alternate mechanical attach them to the frame, USSR author's certificate No. 393839, 1969 (closest equivalent).

The disadvantage of this technical solution is the inability to obtain the desired three-dimensional nonwoven fibrous textile material with improved and organoleptic properties and appearance of products.

The aim of the invention is to remedy these disadvantages and to obtain a new range of textile materials with more convenient in a domestic relationship.

This objective is achieved in that in the method of obtaining three-dimensional nonwoven fibrous textile material comprising applying to the expanded mesh woven carcass layers of fibrous materials and mechanical attaching them to the frame alternately on each side, on the frame on each side of the applied at least one layer of fibrous canvas and attach to the frame hypoproteinemia, then formed non-woven material is subjected to heat treatment at a temperature of from 80 to 158°under pressure of 0.3 and-0.6 MPa for 40-120 minutes.

This goal is achieved by the fact that the density of hypoproteinemia is from 20×104up to 80×104m-2.

Distinctive features of the proposed invention is not revealed in other technical solutions in the study of this and related areas, do not follow explicitly from the prior art, are new and correspond to the inventive step.

The proposed three-dimensional nonwoven fibrous textile material has a woven mesh frame. It has a surface density of 80-220 g/m2made of thermoplastic lined the yarn linear density 29-72 Tex duck and 14-20 Tex. As thermoplastic yarns used artificial filament that, when the temperature of heat treatment 80-158°does not melt, but at the same time softened and shrunk. On both sides of the frame are layers of fleece. The number of fibrous layers of canvas on each side can be different, for example one or more, depending on needs. Each layer is mechanically attached to the frame. The attachment is achieved by placing the fibers of each layer of canvas in between intersecting filaments woven frame. The free ends of the fibers of the canvas on the outer surface of convoluted and in appearance resemble the Karakul. As the fibers of the canvas can be used: wool, including wool Marinoni sheep, and man-made fibres such as polyester, nitronovoe and others, the temperature of the Curling of which coincides with the shrinkage temperature of the threads of a woven frame.

To obtain the described textile material woven frame straighten. At him with a carding machine laid the first layer of fibrous canvas. Stacked layer of the canvas, breaking the needle before pulling part of the fibers of this layer through the frame. This is a mechanical bond to the fibers and frame.

Then the compound obtained flips. Free from the horon frame with carding machines placed second fibrous layer of the canvas. He also penetrated by the needles, as described above, to attach to the already formed structure.

Next, each side of the fibrous textile material consistently comb, workout, cut and then subjected to steam heat treatment (Toblerone) at a temperature of 80-158°under pressure of 0.3-0.6 MPa within 40-120 minutes.

In the process of heat treatment is the shrinkage of woven frame, and simultaneously curl the loose ends of the fibers constituting layers of canvas. In the fibers of the canvas even more firmly attached to the frame, and formed on the surface of curls, like fur.

Next, explain the essence of the invention with specific examples.

Example 1. Three-dimensional nonwoven fibrous textile material contains a mesh woven frame and layers of fleece, which are located on both sides of the frame. Each fibrous layer are sewn to the frame of the sewing thread and, accordingly, has woven columns. To obtain this material on the frame with carding machines laid the first layer of fibrous canvas and sewn with thread to the frame. Then the connection is inverted, and on the free side of the frame, carding machine is placed a second layer of fibrous canvas and sewn with thread to the already formed structure. Next fibrous textile is a material comb, workout and cut to improve air and water vapor permeability (closest equivalent).

Examples 2-5. Three-dimensional nonwoven fibrous textile material contains a mesh woven frame. The frame is made from lined thermoplastic yarns with a linear density of 29-72 Tex duck and 14-20 Tex based and has a surface density of 80-220 g/m2. With both sides of the woven frame are layers of fleece. Each layer of broken needles so that the fibers of the canvas penetrate through the frame. To obtain this textile material on the expanded frame with carding machines laid the first layer of fibrous canvas and breaking the needles to penetrate part of the fibers of the canvas in the gaps between the threads of a woven frame.

Then this design is inverted, and on the free side of the frame, carding machine is placed a second layer of fibrous canvas and also breaking needles, as described above, to attach to an already established connection.

Next, each side of the fibrous textile material consistently comb, workout, cut and subjected to steam heat treatment (Toblerone) at a temperature of from 80 to 158°C under a pressure of 0.3-0.6 MPa within 40-120 minutes.

Specific characteristics of the specific materials and process them receive the Deposit for each example are indicated in the table. Developed product samples for the closest analogue and according to the invention when compared to their organoleptic properties and appearance showed that the products according to the invention have a more soft feel and specific appearance, inherent quality products from natural fur.

220
Table
Material characteristics and process
no examplesThe linear density of weft yarns frame, TexThe linear density of the warp frame, TexThe surface density of the frame, g/m2Temperature Toblerone,°Steam pressure, MPaTime Toblerone, min
1234567
1. (similar)3518,5180---
2.2920130800,3100
3.3818,5801050,4120
4.5616,51300,540
5.72141601580,670

Fabrication of three-dimensional nonwoven fibrous textile material for protection from chilled environment is carried out on the equipment produced by industrial enterprises, and does not require substantial retooling the production of nonwovens company.

1. Three-dimensional nonwoven fibrous textile material for protection from chilled medium consisting of woven mesh frame and layers of fleece, located on both sides of the frame and mechanically attached thereto, characterized in that the frame is made from subjected to shrinkage of thermoplastic yarns with a linear density of 29-72 Tex duck and 14-20 Tex based weighing 80-220 g/m2.

2. Three-dimensional nonwoven fibrous textile material according to claim 1, characterized in that each layer has a surface density of 200-500 g/m2and contains twisted fiber length of 50-150 mm of wool, or synthetic materials, or mixtures thereof.

3. Three-dimensional nonwoven fibrous textile material according to claim 2, characterized in that the twisted fibers made of wool Marinoni sheep.

4. The way to obtain the require the dimensional non-woven, fibrous textile material according to claim 1, including drawing on the expanded mesh woven carcass layers of fibrous materials and mechanical attaching them to the frame alternately on each side, characterized in that on the frame on each side of the applied at least one layer of fibrous canvas and attach to the frame hypoproteinemia, then formed non-woven material is subjected to heat treatment at a temperature of from 80 to 158°C under a pressure of 0.3-0.6 MPa for 40-120 min

5. The method according to claim 4, characterized in that the density of hypoproteinemia is from 20×104up to 80×104m-2.



 

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