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AssigneeFujian Jialong Adhesive Tape Co.,Ltd.
InventorBenyu HUANG
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The present invention relates to the field of binding adhesive tapes, and more particularly, to a tensile degradable environment-friendly fiber-sandwiched kraft paper adhesive tape and a manufacturing process therefor. Wherein the kraft paper adhesive tape includes a kraft paper layer and an adhesive layer, and a reinforcing layer provided on the kraft paper layer. The kraft paper layer is formed by stacking at least two layers of kraft paper, and the reinforcing layer is provided between two adjacent layers of kraft paper of the kraft paper layer. The reinforcing layer includes several yarns, and the yarns are adhered in the kraft paper layer by a composite glue, so that a fiber-sandwiched structure composed of yarns is formed in the kraft paper layer, which can improve the structural stability, the tensile and tearing strength of the kraft paper adhesive tape. In addition, it is advantageous for environmental protection.
A tensile degradable environment-friendly fiber-sandwiched kraft paper adhesive tape, wherein the kraft paper adhesive tape comprises a kraft paper layer and an adhesive layer, and a reinforcing layer provided in the kraft paper layer;
The kraft paper adhesive tape of claim 1, wherein, when the adhesive layer is a hot melt glue, a release agent layer and a primer agent layer are sequentially provided on the side of the kraft paper layer facing away from the adhesive layer.
The kraft paper adhesive tape of claim 2, wherein the release agent layer comprises an aqueous release agent coated on the surface of the primer agent layer.
The kraft paper adhesive tape of claim 2 wherein the primer agent layer comprises an anti-penetration aqueous primer agent coated on the surface of the kraft paper layer.
The kraft paper adhesive tape of claim 1, wherein the yarns are distributed in parallel or S-bend along the length extension direction of the kraft paper layer.
A manufacturing process for the kraft paper adhesive tape of any one of claims 1 to 5, comprising the following steps:
The manufacturing process of claim 6, wherein in step S3, when the adhesive layer coated on one side of the kraft paper layer by the second coater is a hot melt glue, the other side of the kraft paper layer is sequentially coated with a layer of anti-penetration aqueous agent and a layer of aqueous release agent by the third coater and the fourth coater.
The manufacturing process of claim 6, wherein, when the kraft paper and the yarns of step S2 are compounded in a compounding device, the kraft paper and the yarns pass between two heat-conducting rollers of the compounding device, and the temperature of the two heat-conducting rollers is 65-150°C.
The manufacturing process of claim 6, wherein, after coating the composite glue on one side of the kraft paper, the composite glue on the kraft paper is preheated at a preheating temperature of 50-150°C. before entering the compounding device.
The manufacturing process of claim 6, wherein in step S1, the yarns are immersed into the composite glue in such a manner that the composite glue is poured into a container, and the container is heated to prevent the composite glue from solidifying;