Oriented thread structure and a method for manufacturing same
OwnerJukka Saarikettuinventor
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Abstract
A method for the manufacture of an oriented thread structure for lamination and/or protective purposes is disclosed in which preferably glass, carbon, aramide, borax or ceramic reinforcing threads (1), in general are bound to form an oriented thread mat. The mat can be laminated inside a resin or other binder to form a strong shell structure, in which the strength of the shell is principally based on the strength of the above-mentioned reinforcing threads (1). The laminable thread structure can be easily formed on the surface of a mold and avoids air-bubbles in the laminate. The reinforcing threads (1) are bound to a basic knitted structure consisting of one-sided loops (2) by loops (3, 4) running transversely in the opposite direction.
Claims12
A method for the manufacture of an oriented thread structure to be laminated, in which reinforcing threads (1) are bound to form an oriented fiber mat or corresponding knitted element, by which the threads (1) are laminated inside resin or other binder and thus a strong shell structure is formed, characterized in that the knitting is carried out on a so-called double circular knitting machine to form a weft-knitted mat in such a way that the knitting includes the following sequential and continually repeating stages in manufacture.
- (a) making a first loop (2) by a first set of needles,
- (b) orienting at least one reinforcing thread (1) to be included in the knitted fabric on top of the above-mentioned first loop, and
- (c) putting a second loop (3,4) by a second set of needles on top of the oriented reinforcing thread and attached to the above-mentioned first loop,
- in which case the oriented reinforcing thread (1) runs with the support of the loops (2,3,4) and straight between the courses in the channel formed by them.
A thread structure to be laminated, in which reinforcing threads (1) are bound to form an oriented weft-knitted thread mat or corresponding knitted element, by means of which the threads (1) are laminated inside resin or other binder and thus form a strong shell structure, characterized in that the reinforcing thread (1) in the transverse direction is bound to the smooth weft-knitted fabric formed by the right-side loops (2) by means of the wrong-side loops (3,4).
Dependencies are inferred from the claim text.