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properties and use of needlepunched industrial textiles based on short flax fibres

Historical review. Flax and hemp have been cultivated in Estonia for about 3000 years.The climate and soil in southern Estonia are favourable for flax cultivation.. Arable land under flax in Estonia. The most relevant social and economic reasons:. a lack of permanent and stable home and foreign markets for the flax fibres produced in Estonia;low harvest of flax varieties, high production cost, small total output, and uneven quality;a lack of reasonable government agricultural policy..

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properties and use of needlepunched industrial textiles based on short flax fibres

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    1. PROPERTIES AND USE OF NEEDLEPUNCHED INDUSTRIAL TEXTILES BASED ON SHORT FLAX FIBRES M. Soiela, A. Viikna

    3. Arable land under flax in Estonia

    4. The most relevant social and economic reasons: a lack of permanent and stable home and foreign markets for the flax fibres produced in Estonia; low harvest of flax varieties, high production cost, small total output, and uneven quality; a lack of reasonable government agricultural policy.

    5. At the Tallinn Technical University research has been going on for a long time into the use of short flax fibre and tow for the manufacture of industrial textiles; a whole range of products has been developed which could be manufactured in Estonia.

    6. This study describes the possibility of producing needlepunched nonwoven agricultural textiles from short flax fibres; mechanical testing; testing nonwovens in horticulture.

    7. Producing of nonwoven Nonwoven industrial textiles were produ-ced by mechanical bonding of web from short flax fibres with needlepunching. Needlepunched nonwovens (~500 g/m²) were penetrated with different dilutions of varnish, silicone oil, damp-proof course, blown linen seed oil, and impregnate.

    8. Mechanical testing The most important characteristic of all nonwoven materials is their tensile strength. Since tensile strength of all textiles depends on humidity, the tensile strength was also tested in wet conditions. The water-absorbency and flexural stiffness of the materials were also tested.

    9. Tensile strength of nonwovens

    10. Water-absorbency of nonwovens

    11. Flexural stiffness of nonwovens

    12. Testing nonwovens in horticulture The needlepunched nonwoven linen mats were tested as weed-killers. The mats form short flax fibres were also tested as seed-mats. For example garden cress, grass varieties.

    13. Needlepunched linen mats as weed-killers

    14. Needlepunched linen mats as weed-killers

    15. Needlepunched linen seed-mats

    16. Linen pre-grown grass seed-mats

    17. Linen pre-grown grass seed-mats

    18. Not pre-grown grass seed-mats

    19. Not pre-grown grass seed-mats

    20. Conclusions From experiments it turned out that needlepunched materials are usable as mulches for weed-killing, to keep humidity in the soil, and as seed mats. The strength of needlepunched materials after steeping particularly does not change.

    21. Conclusions It is simple to produce the needlepunched nonwovens and to use them in horticulture etc. For example the mats with pre-grown grass is easy to roll up and to transport to the growing place. This kind of grass mats are treading proof.

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