Hook and loop fastener flock surface and method and equipment for producing same

Abstract

The invention provides a hook and loop fastener flock surface and a method and equipment for producing the same. According to one embodiment of the invention, the method for producing the hook and loop fastener flock surface comprises the following steps: providing a plurality of yarn continuously in a preset arranging way; carrying out plastic deformation to the yarn so that the shape of the yarn is changed into the needed flock loop shaped; providing substrates continuously; and directly fixing the yarn subjected to plastic deformation on the substrates in a fusing and bonding way to form the hook and loop fastener flock surface. Due to the adoption of the method, a large number of the hook and loop fastener flock surfaces with high sticking / unsticking strength and high sticking tightness can be produced rapidly at low cost.

Description

technical field [0001] The present invention relates to a method and equipment for manufacturing a textured surface for a hook and loop fastener, and a textured surface for a fastener tape. Background technique [0002] The mechanical fastening device commonly known as "devil felt" is mainly composed of a Velcro tape with a hook structure and a wool surface with a loop structure hooked with the hook structure, and because it is easy to feel and separate characteristics, and are widely used in applications that require a detachable bond of two separate parts. [0003] In recent years, the application of hook and loop fasteners and fleece structures in diapers has gradually expanded, and the improvement of the functionality and comfort of related products is the common goal pursued by the industry. For this reason, the traditional adhesive backing method previously used on diaper products has gradually been eliminated due to the disadvantages of inconvenient and difficult to ...

AI Technical Summary

Problems solved by technology

However, due to the relatively loose organization of knitted fabrics, it also has greater flexibility

Therefore, when the rough surface of the knitted fabric is engaged with the injection hook of the mushroom head, there will be up, down, left, and right displacements, resulting in poor adhesion of the felt and insufficient peel strength.

However, at present, by changing the loop density and loop length in the weft direction, there is no obvious improvement effect on improving the peel strength.

In addition, the post-processing of general knitted fabrics is mostly based on PU coating and PVC adhesive, but the uniformity of PU coating is not easy to control, it is not resistant to high water pressure, and lacks water solubility, while PVC adhesive has low-temperature embrittlement and contains DOP chemical substances, which are not easy to decompose naturally, and will pollute the environment when burned.

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