Wow, I can not believe this is the last month of 2015 le.
Up in the morning, a window of the compartment, indoor and outdoor temperature, the temperature difference is quite obvious, the vegetation covered with a thin layer of frost. If days and cold spots, Xiao Bian think this delicate grass should head deeply buried in the ground now.
Farmland look at the farming, farming industry friends has long been ready for this winter. They will all take a strong crop cold greenhouse.
Due to a variety of colored plastic greenhouse sheeting absorption and reflection spectra of different laws, so the growth of crops and different weed pests and ground temperature effects, for colored plastic sheeting should be reasonable application, the following list of items is appropriate to place plastic sheeting greenhouses :
Black Film: serious weed cultivation plots or the hot season Summer Radish, cabbage, spinach, cucumber autumn, late tomatoes.
Green film: more for strawberries, beans, eggplant, peppers, tomatoes, melons and other vegetables and other cash crops, can play a role in weeding.
Blue film: Mainly used rice seedlings, help foster stocky seedlings, but also for spinach, cotton, peanuts, strawberries mulching.
Red membrane: membrane incubated at red rice seedlings vigorous growth, increasing the sugar content of beet, carrot taproots grow larger, leek leaf width flesh, to increase production in advance of harvest.
Purple membrane: mainly used in Eggplant and green leafy vegetables in winter and spring cultivation in greenhouses or plastic greenhouses, can improve the quality and yield.
Yellow film: yellow film covering cucumber can promote budding flowering yield 50% -100% coverage celery and lettuce plants growing tall bolting delayed, covering dwarf beans, among festival grow plants, beans grow sturdy, cover the tea quality tea quality, yield.
Silver membrane: mainly used in summer and autumn vegetables, melons, cotton, tobacco cultivation, with good anti-disease prevention and anti-aphid whitefly and so on.
Colorant
Specific requirements for aesthetic or plastic displays people leaving the desired color substance called colorants.
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Colorant classification
Coloring pigments and dyes can be divided into two categories. Wherein the pigment can be divided into inorganic and organic pigments. Inorganic pigments typically oxides, sulfides. Its light, preferably thermal stability, relatively high density, used for opaque plastic; organic pigment more benzenoid compound, relative density, is superior to the inorganic pigment tinting strength, but the light resistance, chemical resistance somewhat less, easy to fade, easy to bleed.
Pigments are natural products, but also can be synthesized. It exists in the form of fine particles dispersed in the medium, a poor compatibility with the resin, must be uniformly dispersed in the plastics by mechanical means. Dye mostly synthetic organic chemistry crystal, it can dissolve manner dispersed in the plastic, colored diffusion in molecular form. So dye has good transparency, strong coloring, vivid colors and low relative density characteristics.
The optical properties of the colorant >>>>
Pigmented color change produced is dependent on the wavelength of light absorption and light scattering (reflection) degree. Plastics colored dye absorbs only light, the light is not scattered, and therefore is transparent, but can be selective absorption spectrum, it leads to color.
Pigmented same optical effect depends on the degree of light absorption. If the refractive index of the plastic refractive pigment vary greatly, and because the pigment having a specific particle size, it will produce a light reflection. If you choose simultaneous land light absorption, showing not only the plastic color, and opacity.
All have selective light absorption and inorganic and organic pigments color light reflection, will be affected by particle size and refractive index.
>>>> Colorant function in plastic sheeting in
Agricultural plastic colorants mainly to meet specific requirements, such as dark resistance, reflectivity, or of a certain wavelength or the absorption bands or reflective. Applications often take a single color or double color.
Recently, we Placke Plum also acquired new equipment --4 Taiwan LCM all units. The new production facilities will soon go into production, with immediate effect. We successfully developed a series of high-end SE masterbatch.
This series has the following masterbatch many advantages, can be better used in agricultural greenhouse films.
Good dispersion, giving the film flat, smooth surface
High liquidity, to meet the requirements of high-speed production
High concentration, increased hiding power of thin film
Film brighter, more stable color, bright
Low moisture, high added amount is more suitable for film, high-temperature, high-speed production and processing
High-performance materials selection, to ensure that the anti-UV protective properties of the film
The volatiles were lower, improve processing performance, printing, sealing performance
Quality products, Xiao Bian on about you. You then told your little partner, before the advent of Christmas go together onlookers it ~
