TO THE QUESTION OF ASSESSING THE AIR PERMEABILITY OF SCHOOL UNIFORMS MATERIALS PACKAGES
Authors:
1.
Tehnologicheskiy universitet Tadzhikistana
2.
Tehnologicheskiy universitet Tadzhikistana
Type:
Article
Pages:
from 155
to 158
Status:
Published
Received:
23.12.2025
Accepted:
23.12.2025
Published:
23.12.2025
Language:
Russian
Keywords:
AIR PERMEABILITY, SCHOOL UNIFORMS, MATERIAL PACKAGE, HYGIENIC REQUIREMENTS
Abstract (English):
The article presents the results of a study of the air permeability of textile materials intended for the production of school uniforms, provided by sewing enterprises in the Republic of Tajikistan. The relevance of the work is due to the need to comply with the strict hygienic standards of ST CHT 1110-2018, which ensure a comfortable microclimate in the space under the clothing and, as a result, maintain the concentration of students. The regulatory requirements for the air permeability of materials for school uniforms are considered. The aim of the work was to experimentally evaluate the air permeability of materials and develop scientifically based recommendations for the selection of material packages. The air permeability of a garment is influenced by a number of parameters of the materials it contains: fiber composition, yarn thickness and twist, fabric structure and density, type of finish, as well as the composition of the material package, each layer of which makes its own contribution. During the study, 18 samples of suit, shirt and blouse, knitted and lining fabrics were tested. The results showed that some of the samples (Nos. 6, 7, 9, 10 for the suit group and Nos. 16, 17 for the shirt and blouse group) did not meet the regulatory requirements. It was established that in the studied range, the air permeability of the material packages has a close linear dependence on the air permeability of the outer material, which is the limiting factor. Increasing the number of layers in the material package reduces air permeability: by 1.5-3 times in 2-layer packages and by up to 3 times in 3-layer packages. Considering that adding layers also increases the weight of the product and, as a rule, its cost, it is advisable to design school uniforms with a minimum number of layers.
The article presents the results of a study of the air permeability of textile materials intended for the production of school uniforms, provided by sewing enterprises in the Republic of Tajikistan. The relevance of the work is due to the need to comply with the strict hygienic standards of ST CHT 1110-2018, which ensure a comfortable microclimate in the space under the clothing and, as a result, maintain the concentration of students. The regulatory requirements for the air permeability of materials for school uniforms are considered. The aim of the work was to experimentally evaluate the air permeability of materials and develop scientifically based recommendations for the selection of material packages. The air permeability of a garment is influenced by a number of parameters of the materials it contains: fiber composition, yarn thickness and twist, fabric structure and density, type of finish, as well as the composition of the material package, each layer of which makes its own contribution. During the study, 18 samples of suit, shirt and blouse, knitted and lining fabrics were tested. The results showed that some of the samples (Nos. 6, 7, 9, 10 for the suit group and Nos. 16, 17 for the shirt and blouse group) did not meet the regulatory requirements. It was established that in the studied range, the air permeability of the material packages has a close linear dependence on the air permeability of the outer material, which is the limiting factor. Increasing the number of layers in the material package reduces air permeability: by 1.5-3 times in 2-layer packages and by up to 3 times in 3-layer packages. Considering that adding layers also increases the weight of the product and, as a rule, its cost, it is advisable to design school uniforms with a minimum number of layers.
Keywords:
AIR PERMEABILITY, SCHOOL UNIFORMS, MATERIAL PACKAGE, HYGIENIC REQUIREMENTS
AIR PERMEABILITY, SCHOOL UNIFORMS, MATERIAL PACKAGE, HYGIENIC REQUIREMENTS
