Paster type maze flow passage drip irrigation belt and production process

Abstract

The invention provides a patch-type labyrinth channel drip tape and a production method thereof. The invention is made by thermally attaching a labyrinth channel patch in the middle of plastic film, and is characterized in that a layer of plastic film continuously thermally attaches a plurality of groups of patches which are provided with labyrinth channels under horizontal draft; another synchronous tract layer of plastic film is covered, forms a plurality of channels with a plurality of groups of sandwich patches after be separated and heat pressed and is cut into a plurality of strips of patch type drip tapes. The patch-type labyrinth channel drip tape and the production method thereof can directly take the blown film which is widely used in packaging industry as the base material of channel drips; the width of the wall of a channel drip is reduced obviously; 3 to 8 channel drips can be formed simultaneously on a production line, thereby greatly increasing the production efficiency, reducing the production cost of drip tapes, effectively avoiding the problem of deformation and intensity reduction owing to extending labyrinth channels, simplifying the processing equipment and controlling the quality of products more easily.

Description

technical field [0001] The invention relates to a patch type labyrinth channel drip irrigation belt and a production method, belonging to the technical field of agricultural water-saving irrigation. Background technique [0002] Drip irrigation is the most water-saving irrigation technology. The drip irrigation belt is one of the main drip irrigation components. Through the labyrinth flow channel on it, the pressure water flow can be changed into small flow water droplets or trickles that slowly drip or flow out. However, at present, due to the high investment in the early stage, the application of this technology is limited in the vast rural areas, especially the poor areas with drought and water shortage. At present, the commonly used methods for forming the labyrinth channel of the drip irrigation belt include the vacuum suction method and the patch method: the former is to extrude a thin-walled plastic tube first, then flatten the extruded thin-walled tube, and then pass...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of production method of patch labyrinth channel drip irrigation belt of continuous production simultaneously, to reduce the equipment investment of drip irrigation belt, reduce the wall thickness and the weight of drip irrigation belt simultaneously, solve the high production cost of drip irrigation belt, The problem farmers can't afford

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