Stitch bonding or web knitting

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Warp knitting machine builders Karl Mayer build a range of Malimo stitch bonding machines (Fig. 30.4) [8]. Whereas warp and weft knitting construct fabrics from yarns, stitch bonding constructs fabrics from a medium such as a fibrous web using purely mechanical means. It is therefore a highly-productive method of producing textile substrates for industrial end-uses.

Using horizontally-mounted compound needles, the medium can be pierced by the pointed needle heads, so it is ideal for the production of textile composites. It is stitch-bonded either right through the structure or only on one surface in order to stabilise it. Dependent upon the model, additional yarns or fibres may or may

Malimo Maliwatt
Stitch-bonding elements:

Guide needle 1st guide bar Guide needle 2nd guide bar Knocking-over sinker

Warp yarn guide needle Fig. 30.4 Malimo stitch bonding machine knitting head [Karl Mayer].

not be supplied to the needles. Yarn layers, webs, films or materials such as glass fibres, rockwool, or re-cycled products can be processed

Malimo web processing techniques include Maliwatt, Malivlies, Kunit, and Mul-tiknit. The Malimo machines operate with one or two guide bars and offer parallel weft and multi-axial alternatives. Pile and fleece can be produced on the Malipol (pile yarn feed) and Voltex (pile web feed) machines.

The Karl Mayer Maliwatt stitch-bonding machine is a high-performance machine for plain stitch-bonding of loose or pre-bonded fibrous webs, as well as of substrates of various materials within a wide range of thicknesses and weights per unit area.

The advantage of mechanical bonding is that it occurs in a single process without the use of chemicals. The resultant fabric can be used in a moulded resin laminate for boats, cars and sports equipment.

A special version of the machine for processing fibreglass into a web has now been developed. The fibreglass is fed to a chopper behind the machine. This cuts the glass fibres into pre-determined lengths (25-100mm). The chopped strands are randomly arranged in the form of a mat on a conveyor belt that feeds to the stitch forming area where they are bonded by means of a quilted seam. The mat is used to make reinforced plastic mouldings such as safety helmets and vehicle bodywork.

Working widths range from 2900mm to 6150mm and gauges from E 3.5 to E 22.

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Responses

  • dirk
    How to knit bonding in someones head?
    3 years ago
  • stefan
    How to make a stitch in a bonding?
    2 years ago
  • Giuliano
    How to make a stich on a bonding?
    2 years ago

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