RU2338443C1 - Flight underwear for astronaut - Google Patents

Abstract

FIELD: personal effects and household articles.

SUBSTANCE: underwear is made from knitted fabric, made from natural silk fibres with linear density 2.33 tex × 3 with twist 1000-1100 tpm, and in area of elbows, hips and knees - from natural silk fibres with linear line density 2.33 tex × 6 with twist 700-800 tpm. Invention ensures creation of flight underwear for astronaut, intended for daily wearing in normal conditions of short flight with temperature inside ship cabin not less than 18°C.

EFFECT: more comfortable and quality characteristics of using.

2 ex

Description

The invention relates to flight clothing for astronauts and can be used in the manufacture of flight underwear intended for everyday wear under normal conditions of short-term flight.

Known flight underwear made of linen fabrics with high hygroscopicity and moisture capacity, low heat conductivity, high air and vapor permeability (Umansky SP Cosmonaut's outfit. M .: Engineering, 1982, p.33).

However, this linen has a high creasing ability, increased rigidity, reduced drape, is an additional source of dust in the form of small particles of fibers that pollute the atmosphere in the spacecraft cabin.

Known flight underwear made of wool knitwear, providing lightness, porosity, softness, high hygroscopicity, low heat conductivity, the necessary air and vapor permeability. However, in the process of wearing this underwear, skin irritation is not excluded, which intensifies with the lengthening of the wear period and especially when the underwear is moistened (Umansky SP Cosmonaut's outfit. M .: Mashinostroenie, 1982, p.33). In addition, this linen is an additional source of dust in the form of small particles of wool fibers.

Known flight underwear made in the form of overalls from cotton knitwear and made with socks (Umansky SP Cosmonaut's outfit. M: Engineering, 1982, p. 34-35).

This linen has good hygienic properties, but it is also an additional source of dust in the form of small particles of fibers, like all other types of linen made from yarn.

Known flight underwear for an astronaut, consisting of a shirt and underpants made of cotton linen knitwear (Umansky SP Cosmonaut's outfit. M: Engineering, 1982, p. 34), adopted as the closest analogue.

This underwear has good hygienic properties, however, during socks it emits dust in the form of small particles of fibers, polluting the atmosphere of the spacecraft cabin.

The objective of the present invention is the creation of flight underwear for an astronaut, designed for everyday wear under normal conditions of short-term flight at an air temperature in the spacecraft cabin of at least 18 ° C, providing a comfortable, light, soft, elastic state, having good strength and wear resistance, not highlighting dust in the form of small particles of fibers during wear.

This problem is solved due to the fact that in flight underwear for an astronaut made of knitwear, knitwear is made of natural silk threads of linear density 2.33 tex × 3 with a twist of 1000-1100 cr / m, and in the elbows, hips and knees knitwear made of natural silk with a linear density of 2.33 tex × 6 with a twist of 700-800 cr. / m.

The selected type of filaments, their linear densities and twist values provide a strong, elastic, tough and tensile bending resistant to repeated abrasion, resistant to abrasion of knitwear. As a result of numerous experiments conducted by the authors, it was found that it was knitting of the selected combination of natural silk threads of linear density 2.33 tex × 3 with a twist of 1000-1100 cr / m, and in the elbows, hips and knees, the most intensive mechanical stresses - from natural silk threads of linear density 2.33 tex × 6 with a twist of 700-800 cr / m provides in total high hygroscopicity, water absorption, moisture conduction, good air and vapor permeability, low heat conductivity days, minimal electrification, bactericidal activity, good strength and the same good wear resistance of all parts of the laundry under various mechanical stresses during socks - repeated stretching, bending, compression, abrasion, increased softness, flexibility, elasticity, shape resistance, crease resistance, nice appearance and neck of the laundry . The linen is light, pleasant to wear, does not cause sensations of thermal discomfort and a “greenhouse” effect, irritation of the skin, mucous membranes of the nasopharynx and respiratory tract, does not emit dust in the form of small particles of fibers, since it is made of complex natural silk twisted threads, not from yarn.

The invention is illustrated by the following examples.

Example 1. Flight underwear for an astronaut is made by a known knitting method of natural silk threads of linear density 2.33 tex × 3 with a right twist of 1000 cr / m, and in the elbows, thighs and knees of natural silk threads of linear density 2, 33 tex × 6 with a right twist of 700 cr./m.

Example 2. Flight underwear for an astronaut is made by a known knitting method of natural silk threads of linear density 2.33 tex × 3 with a left twist of 1100 cr./m, and in the elbows, thighs and knees of natural silk threads of linear density 2, 33 tex × 6 with a left twist of 800 cr. / M.

Claims (1)

Flight underwear for the astronaut made of knitwear, characterized in that the knitwear is made of natural silk threads of linear density 2.33 tex × 3 with a twist of 1000-1100 cr / m, and in the elbows, hips and knees, the knitwear is made of natural silk threads of linear density 2.33 tex × 6 with a twist of 700-800 cr. / m.