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Nasretdinova A.S., Parsanov A.S., Krasina I.V., Antonova M.V. Development of technology for producing nonwoven insole materials based on industrial hemp fibres. Journal of Clothing Science. 2026; 11(3). Available at: https://kostumologiya.ru/PDF/01TLKL326.pdf (in Russian).

Development of technology for producing nonwoven insole materials based on industrial hemp fibres

Nasretdinova Aziza Salavatovna
Kazan National Research Technological University, Kazan, Russia
E-mail: nasans1305@gmail.com
ORCID: https://orcid.org/0000-0002-1127-3560
RSCI: https://elibrary.ru/author_profile.asp?id=916642
SCOPUS: https://www.scopus.com/authid/detail.url?authorId=60266093200

Parsanov Alexander Sergeevich
Kazan National Research Technological University, Kazan, Russia
E-mail: parsanov1982@yandex.ru
ORCID: https://orcid.org/0000-0002-9573-1521
RSCI: https://elibrary.ru/author_profile.asp?id=798098
SCOPUS: https://www.scopus.com/authid/detail.url?authorId=57128597500

Krasina Irina Vladimirovna
Kazan National Research Technological University, Kazan, Russia
E-mail: irina_krasina@mail.ru
ORCID: https://orcid.org/0000-0001-9448-121X
RSCI: https://elibrary.ru/author_profile.asp?id=168091
SCOPUS: https://www.scopus.com/authid/detail.url?authorId=57128500200

Antonova Marina Vladimirovna
Kazan National Research Technological University, Kazan, Russia
E-mail: marisha.10@list.ru
ORCID: https://orcid.org/0000-0002-7313-7804
RSCI: https://elibrary.ru/author_profile.asp?id=756399
SCOPUS: https://www.scopus.com/authid/detail.url?authorId=57127860700

Abstract. The article presents the results of experimental work on the development of nonwoven material technology from industrial hemp fibres for the manufacture of footwear insoles. The relevance of the topic is determined by the need for import substitution and the transition of the light industry to environmentally friendly renewable raw materials. Cellulose-fibre bases and wool felts, traditionally used for insoles, are inferior in moisture resistance, hygienic properties and cost. The aim of the study was to find technological regimes for needle-punching formation of nonwoven materials from hemp fibre that would ensure compliance of finished products with the requirements of regulatory documents for insole products. The experiments compared mechanical and chemical-mechanical fibre treatment. Chemical modification made it possible to reduce the lignin content from 15,6 % to 1,9 % and obtain stronger nonwoven fabrics.

The maximum tensile breaking load was recorded at a needle-punching density of 200 punches/cm²; further compaction damages the fibres and reduces strength. In terms of abrasion resistance, water absorption and tear resistance, the test samples meet the requirements of GOST R 56967-2016. Economic calculations have shown that the cost of hemp insoles is 18–75 % lower than that of wool insoles, due to cheaper raw materials. A step-by-step technological scheme is proposed — from web forming to cutting and quality control. Overall, the results indicate that hemp fibre can become the basis for the production of inexpensive and environmentally friendly insole materials, and the developed technology is ready for scaling in industrial production.

Keywords: industrial hemp; bast fiber; needle-punched nonwoven materials; footwear insoles; fibre modification; punching density; material strength

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