FIELD: textile industry, in particular, manufacture of nonwoven materials used for making tea bags.
SUBSTANCE: nonwoven material consists of thermoplastic synthetic filament having surface density of 7-50 g/m2, average diameter of single threads 7-40 microns, area of partial contact thermal fusion in material 5-20%, content of dull finish substance 0.5% or less. Nonwoven material may be alternatively laminate of nonwoven materials having basic component in the form of nonwoven material of thermoplastic synthetic filament. Nonwoven material is provided with openings having maximum diameter of 200-2,000 micron, and has transmittance 50% or more, coefficient of powder leakage 10 wt% or less, and water absorbing capacity less than 10 s. Tea bag is made from such nonwoven material.
EFFECT: improved transmittance, reduced leakage of powder from which tea bags might be manufactured and wastes might be reprocessed.
13 cl, 1 dwg, 3 tbl, 18 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SHEET MATERIAL FOR EXTRACTION, EXTRACTION FILTER AND EXTRACTION SACHET | 2017 |
|
RU2737472C1 |
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| BIODEGRADABLE NONWOVEN MATERIAL | 2017 |
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| NON-WOVEN MATERIAL, FASTENED TO HYDRO-ENTANGLING OF FIBER, AND MANUFACTURING METHOD OF SUCH MATERIAL | 2004 |
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| NONWOVEN MATERIAL, LAMINATED MATERIAL, ARTICLE MADE OF NONWOVEN MATERIAL, MULTICOMPONENT FIBRE, WEB AND METHOD OF MANUFACTURING NONWOVEN MATERIAL | 2011 |
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RU2573817C2 |
| ABSORBENT ARTICLE | 2014 |
|
RU2660303C2 |
