Flame-retardant nylon viscous fastener and production technology thereof
A flame-retardant nylon and production process technology, which is applied in the field of flame-retardant nylon hook and loop fasteners and its production techniques, can solve the problems that the surface bristles cannot meet the requirements of the mold, and affect the effect of sticky fastener bonding.
Active Publication Date: 2018-01-16
HANGZHOU NANFANG FASTENER TAPE CO LTD
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Problems solved by technology
[0005] The invention solves the defect that the prior art nylon hook and loop fastener adopts the method of adding a flame retardant to carry out flame retardancy, which causes the bristles on the surface to be molded and cannot meet the requirements and affects the bonding effect of the hook and loop fastener, and provides a kind of flame-retardant nylon hook and loop fastener And its production process, using a layered structure to combine nylon with flame retardants and nylon without flame retardants, reducing the amount of nylon, retaining the quality of nylon compression molding, and at the same time having a flame-retardant effect
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[0025] Example: A flame-retardant nylon hook and loop fastener (see figure 1 figure 2 ), the whole is divided into three layers, the lower layer 5 is a nylon layer with molded bristles 6, the upper layer 1 is a flame-retardant nylon layer with flame retardant added, and the middle layer 3 is a flame-retardant composite connected chlorinated polyethylene layer. The lower layer and the middle The glass fiber reinforced plastic resin glue is used for thermosetting extrusion bonding between the layers and between the upper layer and the middle layer. The thickness of the lower layer is greater than the length of the bristles, the thickness of the middle layer is equal to the thickness of the lower layer, and the thickness of the upper layer is the largest.
[0026] The middle layer is provided with through holes 7 penetrating the upper and lower surfaces, and the inside of the middle layer is provided with pores 8 that communicate the side walls and the through holes. The through h...
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The invention relates to a flame-retardant nylon viscous fastener and a production technology thereof to overcome a defect that a surface stinging molding die cannot reach requirements and affects theadhesion effect of viscous fasteners adopting a flame retardant for flame retardation in the prior art. The viscous fastener adopts a layered structure divided into three layers, the lower layer is anylon layer for molding stings, the upper layer is a flame-retardant nylon layer, the middle layer is a flame-retardant composite connecting layer, the lower layer and the middle layer is bonded through fiber glass resin glue, and the upper layer and the middle layer are bonded through the fiber glass resin glue. The multilayer structure is adopted, nylon having high ductility and being convenient for molding the stings is reserved as the lower layer, other layers adopt the flame-retardant layers, the upper layer adopts the flame-retardant nylon layer and reserves the surface of the nylon viscous fastener, and the middle layer plays a role in the connection of the upper layer and the lower layer.
Description
Technical field [0001] The invention relates to the field of nylon hook and loop fasteners, in particular to a flame-retardant nylon hook and loop fastener and its production process. Background technique [0002] Velcro is a commonly used connection accessory at present. It is divided into two sides, one side is small and soft fibers, round hair, and the other side is harder bristles with hooks. The bristles and round hair are combined to form an adhesive connection. It will not separate automatically, and can be easily separated under the action of external force. Therefore, the use of Velcro is getting lighter. [0003] Velcro is generally made of nylon or polyester, both of which will burn, and polyester is easier to burn than nylon. At the same time, because nylon is softer, nylon is mostly used for Velcro. The burning of nylon will produce harmful substances, so the flame retardant properties of Velcro should be considered in the production. [0004] In order to achieve the ...
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IPC IPC(8): B32B27/12B32B27/34B32B27/30B32B7/12B32B3/24B32B3/08B32B37/12A44B18/00
Inventor楼新涛
OwnerHANGZHOU NANFANG FASTENER TAPE CO LTD