Classifications

• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
  • D04H1/4326—Condensation or reaction polymers
  • D04H1/435—Polyesters
• • D—TEXTILES; PAPER
  • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
  • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
  • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
  • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
  • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
  • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
  • D04H1/66—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions at spaced points or locations
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
  • D06M17/00—Producing multi-layer textile fabrics

Definitions

• the invention relates to a thin fixing fleece which can be used for textile filler nonwoven laminates and has a protruding thermoplastic adhesive mass protrusion on the top and bottom and a method for producing such laminates using this fixing fleece.
• Filling nonwovens have so far been mainly sewn into textile clothing fabrics. Although it is possible to use flat, well-set filler nonwovens that have a relatively smooth surface, e.g. to print with a hot-melt adhesive dispersion in spots and in this way thermo. to make fixable. However, these filler nonwovens are for the vast majority of applications in the clothing sector, e.g. in combination with poplin, unsuitable because they look too stiff and untextile.
• Lightweight, voluminous and very soft filler nonwovens cannot be made heat-fixable using conventional methods: They cannot be coated using the rotary screen printing process or the powder dot process. Scattering powder trickles into or through it, hardens the handle and reduces the volume irregularly when heat setting.
• the object of the present invention is therefore to develop a fixing nonwoven whose use avoids the aforementioned disadvantages and which is suitable for producing a textile filler nonwoven laminate which remains supple, soft and textile in the handle, the surface of which remains even after repeated washing and dry cleaning is smooth, the fiber properties are only low and the volume is largely retained even after repeated care treatment.
• nonwovens are evident from DE-OS 24 11 129, where, by means of a nozzle spray process, preferably in patterns, a binder is locally applied to the nonwoven in such a way that it penetrates its entire cross-section.
• a binder since the binder has the sole task of structurally reinforcing a nonwoven fabric on the surface and inside, and since the binder pattern on the surfaces must not be clearly visible in order to have as little negative impact as possible on the fluffy overall structure of the nonwoven, this nonwoven is to be used as a fixing insert unsuitable, since the adhesive properties on the surface are decisive for the latter.
• a variation of the same idea as in the aforementioned application is DE-OS 24 61 869, where a bonded nonwoven fabric is described which is bound by intermittently spaced-apart print pattern binder areas that extend substantially from one surface of the fiber layer to the other surface.
• the binder is applied as a suspension using the gravure printing process and also has the task of deviating from the present invention of strengthening a nonwoven fabric in such a way that it is suitable for cleaning and wiping purposes. Use as a fixing fleece is therefore not possible.
• thermoplastic adhesive for the fixing fleece according to the invention is any water-dispersible hot melt adhesive, such as copolyamide, copolyester, low-pressure polyethylene or polyurethane. It only has to be ensured that the dispersion can be processed by spraying or printing processes in such a way that it penetrates the entire cross-section of the fixing nonwoven and forms clearly raised patterns on its two surfaces. These patterns preferably consist of dots, which are distributed in rows in a grid of 1i to 30 mesh or randomly with 20 to 75 dots / cm 2 . In any case, the adhesive should be present in an amount of 7 to 22 g / m 2 (calculated dry).
• Particularly suitable fixing nonwovens according to the present invention should have a fall coefficient (according to DIN 54 306) of less than 25%. All light-weight nonwovens of 7 to 20 g / m 2 are suitable which have been produced in a known manner by wet or dry processes.
• the fixing nonwovens according to the invention also offer the advantage that their manufacturing process can be incorporated directly into a continuous process for the production of textile filler laminates.
• the method produces a fixing fleece corresponding to claims 1 to 4, in which it is applied in a spray or rotary printing process in a pattern-like manner with hot-melt adhesive dispersion, which penetrates its entire cross-section and is raised on both surfaces.
• the nonwoven web is dried in a sintering channel and the adhesive is sintered.
• the outer fabric or the filling fleece is fed in from above and below.
• all three webs pass through a heated press or belt calender and are laminated together to form a three-layer laminate.
• a thermally slightly pre-consolidated nonwoven fabric of 9 g / m ' which consists of polyester fibers and has a drop coefficient (DIN 54 306) of 17%, is printed with a 37.4% aqueous dispersion of copolyamides using the rotary printing method.
• a printing template is used, which contains 52 holes per cm 2 in a random arrangement.
• 11 g of adhesive per m 2 are applied in such a way that the dots are pressed through the thin fleece and protrude from the surfaces to such an extent that a fixing process can take place on both sides.
• the printed part of the dots is flattened somewhat.
• the printed laminating fleece is passed through a sintering section, where it is kept floating by a tenter and with the help of lower and upper air.
• an upper fabric and a filling nonwoven fabric are fed into the laminating nonwoven from above.
• the three webs pass through a heated press and are joined to form a three-layer laminate.
• the steel roller of the steel-silicone roller press has a temperature of 155 ° C, the pressure is 7 kp / cm, and the press is set to a gap of 2 mm.
• the outer fabric is a hydrophobic cotton-polyester poplin with a width of 1.50 m. Their weight per unit area is 160 g per linear meter.
• a binder-strengthened polyester fleece of 55 g / m 2 , a thickness (DIN 53 855) of 7.17 mm and a density of 7.67 kg / m 3 is used as the filler nonwoven.
• the laminate After leaving the press, the goods are rolled up with the help of a center winder.
• the laminate has the advantageous properties which were shown in the description under a) to e).

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Dispersion Chemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Manufacturing Of Multi-Layer Textile Fabrics (AREA)
• Laminated Bodies (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=6227203

Family Applications (1)

Country Status (2)

Cited By (2)

Families Citing this family (3)

Family Cites Families (7)

• 1984
  • 1984-02-09 DE DE3404545A patent/DE3404545C2/de not_active Expired
  • 1984-08-18 EP EP84109869A patent/EP0153443B1/fr not_active Expired - Lifetime
  • 1984-08-18 DE DE8484109869T patent/DE3484103D1/de not_active Expired - Lifetime

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