Abstract: It is provided that a braid which has high dimensional stability even in long-term high temperature storage and which fluctuates little in physical properties with the lapse of time. And it is provided that fishing lines, nets, ropes, and protective covers, and bulletproof materials using the same. A braid comprising a polyethylene fiber or polyethylene tape which has an intrinsic viscosity [?] of not less than 5.0 dL/g and not more than 30 dL/g and contains not less than 90% of ethylene as a repeating unit thereof, wherein a thermal shrinkage percentage is not less than 0.45% and not more than 8% under an environment of 80° C. for 240 hours.

Abstract: It is provided that a braid which has high dimensional stability even in long-term high temperature storage and which fluctuates little in physical properties with the lapse of time. And it is provided that fishing lines, nets, ropes, and protective covers, and bulletproof materials using the same. A braid comprising a polyethylene fiber or polyethylene tape which has an intrinsic viscosity [?] of not less than 5.0 dL/g and not more than 30 dL/g and contains not less than 90% of ethylene as a repeating unit thereof, wherein a thermal shrinkage percentage is not less than 0.45% and not more than 8% under an environment of 80° C. for 240 hours.

Abstract: A novel, low cost fishing line resolves various problems posed by conventional fishing lines of braided structure, such as breaking strength, knot strength, low breaking elongation, drape insufficiency and producible length. The fishing line is made up of multiple filaments bound and united by means of a water dispersible resin adhesive. This fishing line realizes reduction of yarn damaging though avoidance of knitting and braiding steps, having such a structure that, due to buildup with enhanced linearity, the inherent strength of fiber can be easily exploited and the structure can be made with high productivity.

Abstract: A braided cord consisting of braided filaments or a twisted cord of filaments in which at least a part of the filaments are high tenacity multifilaments, and the rest of the filaments are monofilaments, which is preferably used as a serving for an archery bowstring.

Abstract: An arm 122 is secured on an upper end portion thereof to an output shaft 121 of a reduction gear 120 attached to a motor that is installed under a rest frame 115 on which a mattress is to be mounted. When rollers 123 provided on a lower end portion of the arm 122 are vertically guided along a vertical guide member 124 as the motor rotates forwardly and reversely, the arm 122 begins to swing right and left, thereby causing the rest frame 115 to rock quietly and gently about a rocking axis 115a. As a result of this construction, a rocking bed is provided, in which a motor is downsized and noise is reduced during the operation of a driving force transmission mechanism, and the rest frame for mounting a mattress rocks right and left properly with a simple construction.