CN1156370C - Permeable plastic film - Google Patents

Abstract

The present invention discloses a permeable plastic film which is composed of two layers of plastic films, wherein one layer is thin and the other layer is thick; each square meter is provided with 400 to 800 holes with the diameters of three to five millimeters on each layer of plastic films; the two layers are pasted with each other. Pasting lines are in the shape of a cross rectangle, and the holes are arranged in a staggered way; the thick layer of the plastic films is used as the front surface of the permeable plastic film. When the permeable plastic film is used as a greenhouse film and a mulching film, rain water can automatically downwards flow from the holes of the film; when the sun radiates, water vapor of the ground can make the two layers of films tightly contact, so water contents of the ground can be reserved. The present invention is suitable for growing grass and planting trees in the drought and water-deficient areas of north and west in China, and the survival rate of plants can be enhanced.

Description

A kind of permeable plastic film and manufacture method thereof

Technical field

The present invention relates to plastic products, specifically a kind of permeable plastic film and manufacture method thereof.

Background technology

No matter existing plastic sheeting is to be used in hot house, still is used as mulch film, when weather rains, rainwater all can not see through plastic sheeting and enter in the soil, makes that growing plants can not be effectively utilized rainwater in the hot house to come its required moisture is replenished, and must carry out the manual watering.Cause rainwater not utilize, must carry out the manual watering, not only taken a lot of work but also the phenomenon of water wasting.

Summary of the invention

The purpose of this invention is to provide a kind of rainy day can make rainwater enter in the soil, the fine permeable plastic film that is used for hot house and mulch film that evaporation from topsoil is reduced.

The concrete technical scheme that realizes the object of the invention is: a kind of permeable plastic film and manufacture method thereof, described this plastic sheeting are divided into two-layer up and down, and the upper strata is a thick-layer, and bottom is a thin layer, and 400-800/m is arranged on every layer of plastic sheeting ²Diameter is the hole of 3-5mm, and two-layer stickup is pasted line and become rectangle, and arrange for dislocation in the hole, and thick-layer is positive.

The present invention is processed into following method:

(1), punching: select the existing plastic sheeting of thickness 0.08-0.10mm and 0.007-0.009mm, be introduced into the pair roller puncher, input hole spacing line-spacing carries out the pair roller punching, and the aperture is controlled at 3-5mm;

(2), to film: with above-mentioned two kinds of films that have openning hole, merge, make the hole on two films become dislocation to arrange during merging;

(3), heat posted: will introduce in the pair roller thermosticking film machine to good above-mentioned two kinds of films, to paste in form and the stickup line width scanning machine, and carry out the pair roller thermosticking film and handle, and paste line width and be controlled at 1-2mm, pasting line graph is the right-angled intersection rectangle, and the length of side is controlled at 50-60mm.

Characteristics of the present invention are that the infiltration hole can be opened under rainwater pressure and seeped water, water percolating capacity is big, and be exposed to the sun at the sun, when ground temperature is high, its closure is good, make that moisture is kept well in the soil, be applicable to that the kind grass in China the north, western drought and water shortage area is planted trees, use it can improve plant survival rate, change planted in the past many, kind is many, the situation that survival rate is low.

Description of drawings

Fig. 1 is double-layer films punching schematic diagram of the present invention;

Fig. 2 pastes metapore for double-layer films of the present invention and arranges schematic diagram;

Among the figure: 1-membrane pores 2-thick-layer fenestra 3-thin layer fenestra 4-is sticking

Paste line

The specific embodiment

Embodiment

A kind of permeable plastic film and manufacture method thereof, described this plastic sheeting is divided into two-layer up and down, the upper strata is a thick-layer, bottom is a thin layer, on every layer of plastic sheeting, and the hole that every square metre is opened 400-800 diameter is the 3-5 millimeter, two-layer stickup, pasting line is the right-angled intersection rectangle, and arrange for dislocation in the hole, and the thick-layer film is the front of permeable plastic film, when using like this, when water is on film, because being dislocation, the hole on the two membranes arranges, under the pressure effect of water, water can trickle downwards from the hole naturally, play the infiltration effect, when weather sunny, when the sun was exposed to the sun, evaporation from topsoil steam upwards, at this moment double-layer films can be close together, sealing is fine, makes sunshine not volatile to the evaporation of surface water, has effectively kept the moisture of soil.

The processing and making process of permeable plastic film:

Select the existing plastic sheeting of thickness 0.08-0.10mm and 0.007-0.009mm, be introduced into the pair roller puncher, the spacing line-spacing of input hole carries out the pair roller punching, and the aperture is controlled at 3-5mm; With above-mentioned two kinds of films that have openning hole, merge, make the hole on two films become dislocation to arrange during merging; To introduce in the pair roller thermosticking film machine good above-mentioned two kinds of films, will paste in form and the stickup line width scanning machine, and carry out the pair roller thermosticking film and handle, and paste line width and be controlled at 1-2mm, pasting line graph is the right-angled intersection rectangle, and the length of side is controlled at 50-60mm.

Claims (2)

1, a kind of permeable plastic film, it is two-layer up and down to it is characterized in that described this plastic sheeting is divided into, and the upper strata is a thick-layer, and bottom is a thin layer, and 400-800/m is arranged on every layer of plastic sheeting ²Diameter is the hole of 3-5mm, and two-layer stickup is pasted line and become rectangle, and arrange for dislocation in the hole, and thick-layer is positive.

2, the manufacture method of a kind of permeable plastic film according to claim 1 is characterized in that what following steps were made:

(1), punching: select the existing plastic sheeting of thickness 0.08-0.10mm and 0.007-0.009mm, be introduced into the pair roller puncher, input hole spacing line-spacing carries out the pair roller punching, and the aperture is controlled at 3-5mm;

(2), to film: with above-mentioned two kinds of films that have openning hole, merge, make the hole on two films become dislocation to arrange during merging;

(3), heat posted: will introduce in the pair roller thermosticking film machine to good above-mentioned two kinds of films, to paste in form and the stickup line width scanning machine, and carry out the pair roller thermosticking film and handle, and paste line width and be controlled at 1-2mm, pasting line graph is the right-angled intersection rectangle, and the length of side is controlled at 50-60mm.

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