CN214126270U

CN214126270U - Three-color matching mulching film

Info

Publication number: CN214126270U
Application number: CN202021728051.3U
Authority: CN
Inventors: 刘兆同
Original assignee: Shandong Maoyuan Plastic Technology Co ltd
Current assignee: Shandong Maoyuan Plastic Technology Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-09-07
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a plastic film is matched colors to three-colour relates to plastic film technical field. The color-matching three-color film comprises a first tape film and a second tape film, wherein the thickness of the first tape film and the thickness of the second tape film are consistent. The utility model can increase the temperature and protect the seedling when in use through the manufactured three-color matching mulching film, thereby being beneficial to stabilizing the temperature of the root system, lightening the high temperature obstacle and being suitable for the growth of crops; besides the characteristics of heat preservation and soil moisture preservation of common products, the silver gray film reflects sunlight in daytime, so that the ground temperature does not rise rapidly, the cooling effect is achieved, the reflected sunlight can enable the bottoms of fruits on trees to be colored, the crop quality is improved, weeds under the covering surface can be removed, the physical weeding effect is achieved, the bicolor product has good far infrared ray separation performance at night, the loss of far infrared radiation of water, plants and the ground can be reduced, the heat preservation performance is good, and the product has the anti-aging and dripping functions.

Description

Three-color matching mulching film

Technical Field

The utility model relates to a plastic film technical field specifically is a plastic film is matched colors to three-colour.

Background

The mulching film is one of effective ways to increase the yield of grains and economic crops. In recent 40 years, the production and application development of agricultural mulching films in China is rapid, the coverage area of the mulching films in 1980 is only 2.5 ten thousand mu, less than 8 ten thousand tons, and more than 110 ten thousand tons in 2019, but the agricultural mulching films cannot meet the requirement of future agricultural development in terms of quantity or function.

All the mulching films produced before the end of the 90 s are transparent, and black mulching films begin to appear after 2000 s, and have the functions of blocking light transmission, preventing the growth of germinated weeds (weeding by a physical method), reducing the soil temperature in summer, preserving soil moisture and the like. The black mulching film enters a high-speed development stage after 2018, and according to statistics of various mulching film production enterprises, the yield of the black mulching film accounts for 40-60% of the total amount of the mulching film every year, namely the black mulching film occupies 50% of the market of the transparent mulching film.

The black mulching film has a poor temperature increasing effect in northern areas, so that the black and white mulching film has the application requirement, the transparent color is used for transmitting light and increasing the temperature, the black color is used for weeding, and the black and white mulching film achieves the effects of increasing the temperature by half and weeding by half. With the rapid expansion of the application quantity of the black mulching films, a plurality of problems are brought, for example, the black mulching films are not black enough, the growth of the weeds which can not control the germination can not be controlled, the hole breaking phenomenon and the advanced aging of the mulching films can often occur, and the like. Some enterprises have insufficient understanding on the black master batch and no understanding on the application conditions of the black mulching film, the film temperature of the transparent mulching film can rise to about 55 ℃ under the sun exposure, and the film temperature of the black mulching film can rise to about 70 ℃ under the sun exposure, so the temperature resistance of the black mulching film is very important, and particularly in the application of southern areas, such as Fujian, Guangdong, Hainan, Guangxi, Yunnan and the like, the use efficiency of the black mulching film is reduced, the effect of reducing the ground temperature is not good, weeding is not good, and hole breaking phenomena frequently occur.

In order to solve the problems, a silver/black double-layer double-color mulching film is gradually developed, a single-layer black mulching film is gradually eliminated in a high-temperature area, the silver surface of the silver/black mulching film can reflect a large amount of light, the soil temperature is reduced, more light is applied to the bottom of a plant, the fruit coloring is facilitated, the silver surface reflects silver highly, polluted whitefly viruses are prevented, aphids can be repelled, the breeding and propagation of the aphids are inhibited, the black surface of the silver/black mulching film prevents sprouting weeds, the weeding efficiency is higher than that of the black mulching film, and the high-temperature and high-humidity mulching film is suitable for high-temperature and high-humidity areas. The double-color mulching film is not easy to break holes due to the thickness, but the anti-aging factor is paid enough attention, the formula design is rigorous and scientific, the cost cannot be reduced blindly, and the master batch is selected through practice inspection and cannot only see the production effect.

When the silver/black mulching film is used in a shed in some areas, the bottom reflection temperature is relatively high, the phenomenon of leaf rolling and seedling burning exists, so technical personnel develop white/black double-color mulching films, the white/black double-color mulching films have the effects of preventing the growth of germinated weeds and reducing low temperature and diffuse reflection, the silver/black mulching films are used in the shed in summer, the cultivation effect is ideal for solanaceous vegetables, diffuse reflection light is thrown to the bottom of plants, the illumination of crops is more uniform, the photosynthesis is more sufficient, the color of the fruits and vegetables is more bright, the fruits and vegetables can be harvested in advance and increased in yield, and the crops under the white color band of the black-and-white color matching mulching films can be fully absorbed by sunlight. Promoting growth; weeds under the black zone grow slowly due to insufficient light, but the defect of insufficient shading of the black film still exists, and the weeding effect is often not met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at providing a three-colour plastic film of matching colors to current problem has been solved: weeds under the black zone grow slowly due to insufficient light, but the defect of insufficient shading of the black film still exists, and the weeding effect is often not met.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plastic film is matched colors to three-colour, includes that first area membrane and second take the membrane, first take the membrane with the thickness of membrane is unanimous in the second, first area membrane comprises black membrane and silver gray membrane. The first tape film comprises the following components in percentage by thickness: 43-46% of black film and 54-57% of silver gray film.

Further, the second band film is a white film.

Further, the thickness of the second tape film was 0.018 mm.

Further, the first tape film comprises the following components in percentage by thickness: the black film was 44.5% and the silver gray film was 55.5%.

Compared with the prior art, the beneficial effects of the utility model are that:

the three-color matching mulching film manufactured by the utility model can be used for increasing the temperature and keeping the seedlings, thereby being beneficial to stabilizing the temperature of the root system, lightening the high-temperature obstacle and being suitable for the growth of crops; besides the characteristics of heat preservation and soil moisture preservation of common products, the silver gray film reflects sunlight in daytime, so that the ground temperature does not rise rapidly, the cooling effect is achieved, the reflected sunlight can enable the bottoms of fruits on trees to be colored, the crop quality is improved, weeds under the covering surface can be removed, the physical weeding effect is achieved, the bicolor product has good far infrared ray barrier property at night, the loss of far infrared radiation of water, plants and the ground can be reduced, and the good heat preservation performance is achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the three-color matching mulching film of the present invention;

fig. 2 is a partial view of a first tape film of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a first tape film; 2. a second tape film; 3. a black film; 4. silver gray film; 5. a white film.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments of the present invention, but the following embodiments are only used for understanding the present invention, and do not limit the present invention, and the present invention can be implemented in various ways as defined and covered by the claims.

The first embodiment is as follows:

the utility model provides a plastic film is matched colors to three-colour, includes that first area membrane 1 and second take membrane 2, and first area membrane 1 is unanimous with the thickness of second area membrane 2, and the second takes membrane 2 to be white membrane 5, and first area membrane 1 comprises black membrane 3 and silver-colored membrane 4, and first area membrane 1 is as follows according to the thickness percentage: 43-46% of black film 3 and 54-57% of silver gray film 4.

The white film 5 is formed by heating, mixing and molding a white belt material, and the white belt material comprises the following raw materials in percentage by weight: 90% of linear polyethylene LLDPE with MI being 2 and 10% of functional auxiliary agent.

The black film 3 is formed by heating, mixing and molding a black belt material, and the black belt material comprises the following raw materials in percentage by weight: 90% of linear polyethylene LLDPE, 5% of functional additive and 5% of black master batch.

The silver gray film 4 is formed by heating, mixing and molding a silver gray belt material, and the silver gray belt material comprises the following raw materials in percentage by weight: 90% of linear polyethylene LLDPE, 5% of functional additive and 5% of silver gray master batch.

Further, the thickness of the second band film 2 is 0.018mm, and the first band film 1 is composed of the following thickness percentage: the black film 3 is 44.5% and the silver gray film 4 is 55.5%, i.e. the thickness of the black film 3 is 0.008mm and the thickness of the silver gray film 4 is 0.01 mm.

The three-color matching mulching film can be manufactured in the following mode:

selecting a three-layer or five-layer co-extrusion blow molding extruder as required, respectively stirring white belt materials, black belt materials and silver gray belt materials uniformly, adding the white belt material mixed materials into a white belt material mixed material cylinder, adding the black belt material mixed materials into a black belt material mixed material cylinder, adding the silver gray belt material mixed materials into a silver gray belt material mixed material cylinder, and sequentially carrying out film lifting, blow molding, over traction and rolling on the white belt material mixed materials, the black belt material mixed materials and the silver gray belt material mixed materials through a mixed material cylinder, a connector, a machine head, a die opening to obtain a three-color matching mulching film.

The temperature of the co-extrusion blow molding extrusion equipment is respectively adjusted to be as follows in the manufacturing process: in the mixing machine barrel for black and silver gray belt materials, the temperature of the first barrel area is 150 ℃, the temperature of the second barrel area is 170 ℃, the temperature of the third barrel area is 180 ℃, in the mixing machine barrel for white belt materials, the temperature of the first barrel area is 150 ℃, the temperature of the second barrel area is 160 ℃, the temperature of the third barrel area is 175 ℃, the temperature of a connector of a co-extrusion blow molding extruder is 170 ℃, the temperature under a machine head is 180 ℃, and the temperature above the machine head is 180 ℃.

Example two: the difference from the first embodiment is that:

the thickness of the second band film 2 is 0.02mm, and the first band film 1 comprises the following components according to the thickness percentage: the black film 3 is 43% and the silver gray film 4 is 57%, that is, the thickness of the black film 3 is 0.0086mm, and the thickness of the silver gray film 4 is 0.0114 mm.

The temperature of the co-extrusion blow molding extrusion equipment is respectively adjusted to be as follows in the manufacturing process: in a mixing machine barrel of black and silver gray belt materials, the temperature of a first barrel area is 155 ℃, the temperature of a second barrel area is 185 ℃, and the temperature of a third barrel area is 190 ℃;

in a cylinder of the white strip mixing machine, the temperature of a first cylinder area is 155 ℃, the temperature of a second cylinder area is 175 ℃, and the temperature of a third cylinder area is 185 ℃;

the temperature of the connector of the co-extrusion blow molding extruder is 180 ℃, the temperature below the machine head is 185 ℃, and the temperature above the machine head is 195 ℃.

When the manufactured three-color matching mulching film is used, the white film 5 is used for planting crops to facilitate temperature increase and seedling preservation, and the later root system extends to the position below the black film 3 to facilitate the stabilization of the temperature of the root system so as to relieve high-temperature obstacle and be suitable for the growth of the crops; when the first belt film 1 is laid, the black film 3 is arranged at the lower part, and the silver gray film 4 is arranged at the upper part, so that the characteristics of heat preservation and moisture preservation of common products are realized, in addition, in daytime, the silver gray film 4 reflects sunlight, the ground temperature cannot rise rapidly, the cooling effect is realized, and the reflected sunlight can enable the bottoms of fruits on trees to be colored, and the crop quality is improved. The first belt film 1 is opaque, can remove weeds under a covering surface and has a physical weeding effect. Under strong sunlight, the silver gray film 4 reflects light with infrared rays, so that aphids are repelled. At night, the double-color product has good far infrared ray blocking performance, can reduce the loss of far infrared radiation of water, plants and the ground, has good heat preservation performance, and also has anti-aging and dripping functions according to the requirements of crops.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a plastic film is matched colors to three-colour which characterized in that includes: the first tape film and the second tape film are consistent in thickness, the first tape film is composed of a black film and a silver gray film, and the first tape film is composed of the following components in percentage by thickness: 43-46% of black film and 54-57% of silver gray film.

2. The three-color-matching mulching film according to claim 1, characterized in that: the second band film is a white film.

3. The three-color-matching mulching film according to claim 2, characterized in that: the thickness of the second belt film is 0.018-0.02 mm.

4. The three-color-matching mulching film according to claim 2, characterized in that: the first tape film comprises the following components in percentage by thickness: the black film was 44.5% and the silver gray film was 55.5%.