Technologies and Engineering
Technologies and Engineering
ISSN 2786-5371 e-ISSN 2786-538X
DOI: 10.30857/2786-5371
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Author

Nataliia Pervaia

Doctor of Technical Sciences, Associate Professor

Kyiv National University of Technologies and Design

01011, 2 Mala Shyianovska Str., Kyiv, Ukraine

https://orcid.org/0000-0002-5086-3926

All articles

open access

Keywords: laser engraving; leather products; depth and area of ablation; vapor permeability; hygienic properties of leather; method of scanning electron microscopy

Determination of the influence of laser engraving on the hygienic properties of natural leather for shoe uppers and leather goods

Natalia Borshchevska, Nataliia Pervaia

https://doi.org/10.30857/1813-6796.2020.6.3

Suggested citation

Borshchevska, N., & Pervaia, N. (2020). Determination of the influence of laser engraving on the hygienic properties of natural leather for shoe uppers and leather goods. Technologies and Engineering, 21(6), 29-39. https://doi.org/10.30857/1813-6796.2020.6.3
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  • 17.12.2020
  • 485 Views
  • Technologies and Engineering - Vol. 21, No. 6, 2020
open access

Keywords: leather production, chemical materials, properties, structure, IR spectroscopy

Research of new chemical materials for liquid finishing of leather

Nataliia Pervaia, Olga Andreyeva

https://doi.org/10.1109/5.771073

Suggested citation

Pervaia, N., & Andreyeva, O. (2020). Research of new chemical materials for liquid finishing of leather. Technologies and Engineering, 21(1), 71-85. https://doi.org/10.1109/5.771073
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  • 26.02.2020
  • 450 Views
  • Technologies and Engineering - Vol. 21, No. 1, 2020
open access

Keywords: leather production, fatliquoring preparations, properties, chemical nature, IR spectroscopy

Physicalchemical and ir-spectroscopic research of new fatliquoring preparations

Nataliia Pervaia, Olga Andreyeva

https://doi.org/DOI:10.30857/1813-6796.2019.6.8

Suggested citation

Pervaia, N., & Andreyeva, O. (2019). Physicalchemical and ir-spectroscopic research of new fatliquoring preparations. Technologies and Engineering, 20(6), 81-94. https://doi.org/DOI:10.30857/1813-6796.2019.6.8
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  • 19.12.2019
  • 458 Views
  • Technologies and Engineering - Vol. 20, No. 6, 2019
open access

Keywords: leather for the upper, tanning method, the molding, the keep of shape after molding, testing

Assessment of the capability of leather for footwear upper to keep the shape after molding

Nataliia Pervaia

https://doi.org/DOI:10.30857/1813-6796.2019.3.6

Suggested citation

Pervaia, N. (2019). Assessment of the capability of leather for footwear upper to keep the shape after molding. Technologies and Engineering, 20(3), 62-72. https://doi.org/DOI:10.30857/1813-6796.2019.3.6
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  • 25.06.2019
  • 386 Views
  • Technologies and Engineering - Vol. 20, No. 3, 2019
open access

Keywords: liquid finishing, parameters, chemical materials, mathematical model, leather, indices

Optimization the parameters of liquid finishingof leather

Nataliia Pervaia, Oleh Nikonov, Olga Andreyeva

https://doi.org/DOI:10.30857/1813-6796.2019.2.4

Suggested citation

Pervaia, N., Nikonov, O., & Andreyeva, O. (2019). Optimization the parameters of liquid finishingof leather. Technologies and Engineering, 20(2), 40-50. https://doi.org/DOI:10.30857/1813-6796.2019.2.4
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  • 24.04.2019
  • 491 Views
  • Technologies and Engineering - Vol. 20, No. 2, 2019
open access

Keywords: liquid finishing, chemical materials for neutralization, retanning-filling, leather semifinished products, leather

Investigation of the influence of liquid finishing processes on properties of natural leather

Nataliia Pervaia, A. Nikonova, Olga Andreyeva

https://doi.org/10.1109/5.771073

Suggested citation

Pervaia, N., Nikonova, A., & Andreyeva, O. (2019). Investigation of the influence of liquid finishing processes on properties of natural leather. Technologies and Engineering, 20(1), 46-55. https://doi.org/10.1109/5.771073
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  • 27.02.2019
  • 411 Views
  • Technologies and Engineering - Vol. 20, No.1, 2019