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发明公开
CN101267730A 包括多层管壁的灌溉管 有权

包括多层管壁的灌溉管
摘要：
本发明提供一种具有孔的灌溉管(12)。该管至少在每个孔的区域内是多层的。所述管(12)的至少顶层(152a)和底层(152b)由斥水材料制成，且所述管(12)的内层(154)由渗透材料制成。所述孔由所述管壁的切割表面限定。所述切割表面包括至少覆盖所述内层(154)的密封件。每层(152a、152b、154)可结合到相邻的层上。
摘要（英）：

An irrigation pipe (12) with holes is provided. The pipe is, at least in the area of each hole, multilayered. At least top (152a) and bottom (152b) layers of the pipe (12) are made of a water-repellant material, and an inner layer (154) of the pipe (12) is made of a porous material. The hole is defined by a cut surface of the pipe wall. The cut surface comprises a seal, which covers at least the inner layer (154). Each layer (152a, 152b, 154) may be bonded to adjacent layers.

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