CN109392562B - A special bag for mango with strong light transmittance - Google Patents

Abstract

The invention discloses a special bag for mangoes with strong light transmittance. The body of the special bag for mango is made of paper, and the paper is sequentially provided with a drug coating layer and a chitin fiber layer from the inside of the bag to the outside of the bag. , bamboo pulp fiber layer, nano-titanium dioxide coating, the bottom of the mango special bagging bag is an inner and outer two-layer structure, the inner layer is a polypropylene fiber layer, and the outer layer is a nano-titanium dioxide coating; the mango special bagging bag mouth edge Needle and thread are fixed; the drug coating layer is composed of softener, retention aid, alanine, polyvinyl alcohol, anti-fog resin, dioctyl phthalate, fatty acid glyceride, n-butanol, antibacterial agent, anti-fog It is composed of mold agent, insecticide, p-toluenesulfonic acid and deionized water; the mango bagging of the present invention has the advantages of strong light transmittance, durability, strong practicability, good pest and disease prevention effect, and the mango after bagging has bright color and luster, etc. Effect.

Description

A special bag for mango with strong light transmittance

technical field

The invention relates to the technical field of fruit tree planting, in particular to a special bagging for mangoes with strong light transmittance.

Background technique

Our region belongs to the subtropical monsoon climate, with abundant rain and heat resources. Rain and heat are in the same season. Due to the abundant rain and heat resources, it also brings a lot of pests and diseases, which brings great harm to mango production. The loss accounts for more than 30% of the total fruit output. If the control of diseases and insects is not paid attention to, some even cause the loss of harvest. Although the use of drug control can keep part of the output, but the amount and frequency of drug use are too many, which increases the amount of pesticide residues. The best way to solve this contradiction at present is to carry out bagging cultivation.

Mango bagging has the following advantages: it can prevent the infection, spread of bacteria, and insects from invading the fruit; prevent air pollution and acid rain from contaminating the fruit; prevent strong sunlight and ultraviolet rays from burning the fruit skin; reduce the friction between the fruit and other substances to damage the fruit surface; reduce The number of times of pesticide spraying can avoid the contact between pesticides and fruits and reduce pesticide residues; create a good environment for fruits in the growing period, improve the coloring, increase the wax quality of the peel, and improve the smoothness and luster of the fruit surface.

At present, mango bagging materials mainly include white non-woven fruit bags, breathable plastic film bags, nylon mesh bags, paper bags, etc. The most used are paper bags. And red ivory, Aiwen, red apple awn and other varieties need a certain amount of light in the growth process to meet the color requirements. In the prior art, it is generally adopted to remove the bag about 10 days before receiving the goods, and the workload is large.

SUMMARY OF THE INVENTION

The invention overcomes the technical problems in the prior art that the bagging has poor light transmittance and cannot meet the lighting requirements of mangoes, and provides a special bagging for mangoes with strong light transmittance.

In order to solve the above problems, the present invention adopts the following technical solutions:

A special cover bag for mangoes with strong light transmittance, comprising a bag body and a bag bottom. A plain fiber layer, a bamboo pulp fiber layer, and a nano-titanium dioxide coating. The bottom of the mango special bagging bag has an inner and outer two-layer structure, the inner layer is a polypropylene fiber layer, and the outer layer is a nano-titanium dioxide coating; the mango special bagging bag Needle and thread are fixed on the edge of the bag mouth; the drug coating layer is composed of the following materials by weight: 0.1-0.2 parts of softener, 0.2-0.3 parts of retention aid, 1-2 parts of alanine, 5-10 parts of polyvinyl alcohol parts, 5-10 parts of anti-fog resin, 8-10 parts of dioctyl phthalate, 3-6 parts of fatty acid glycerides, 1-5 parts of n-butanol, 4-9 parts of antibacterial agent, 4 parts of antifungal agent ~8 parts, 3-6 parts pesticides, 1-3 parts p-toluenesulfonic acid, 10-20 parts deionized water;

The thickness of the drug coating layer is 0.01-0.1 mm; the thickness of the chitin fiber layer is 0.01-0.05 mm.

Wherein, the thickness of the nano-titanium dioxide coating on the bag body and the bag bottom is the same, and both are 0.01-0.1 mm.

Wherein, the nano titanium dioxide coating is made of the following raw materials in parts by mass: 20-30 parts of Tween, 1-5 parts of n-butanol, 50-80 parts of acetylacetone, 10-20 parts of tetrabutyl titanate, 14-17 parts of glycerol, 20-30 parts of anhydrous ethanol, and 0.1-0.3 parts of molybdenum oxide.

Wherein, the nano titanium dioxide coating is prepared by the following method: weighing Tween-60, n-butanol, acetylacetone, tetrabutyl titanate, glycerol, and absolute ethanol by mass; Dissolve in absolute ethanol, add acetylacetone in turn and stir for 2 hours, then add glycerol, n-butanol and Tween-60 and continue stirring for 10-20min to obtain TiO ₂ sol, and spread the TiO ₂ sol on the bamboo pulp fiber layer or One side of the polypropylene fiber layer is irradiated with infrared rays for 12 to 15 minutes, and then the bamboo pulp fiber layer is placed in a muffle furnace for 1 hour at 350 to 400 degrees Celsius, and then soaked in a 4mol/L molybdenum oxide solution for 5 to 7 days. , take out and irradiate under infrared rays for 12-15 minutes, and then place the bamboo pulp fiber layer in a muffle furnace at 350-400 degrees Celsius for 1 hour to obtain the nano-titanium dioxide coating.

Wherein, the thickness of the polypropylene fiber layer is 0.1-0.3 mm.

Wherein, the antibacterial agent is chitosan, the antifungal agent is zinc pyrithione, and the insecticide is thiacloprid, flubendiamide, diflubenzuron, spinosyn, abamectin, Sophora flavescens One or more of Alkali and Beauveria bassiana.

Wherein, the softener is triethanolamine stearate quaternary ammonium salt, and the retention aid is guar gum.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The paper in the paper bag of the present invention is sequentially provided with a drug coating layer, a chitin fiber layer, a bamboo pulp fiber layer, and a nano-titanium dioxide coating layer from the inside to the outside of the bag. The bag made of drug coating layer, chitin fiber layer, bamboo pulp fiber layer and nano-titanium dioxide coating has strong firmness and high durability. Through bagging, it is conducive to the formation of mango color and luster, and is suitable for bagging of varieties such as red ivory, Aiwen, and red apple mango. The mango bagging of the invention has the advantages of strong light transmittance, durability, practicability, good pest and disease prevention effect, and the mangoes after bagging have the effects of bright color and luster.

(2) The inner layer of the mango bagging bag of the present invention is a drug coating layer, which has antibacterial, bacteriostatic, and insecticidal effects, and can have the effect of preventing insects and pests without spraying pesticides before bagging. The outer layer of the mango bagging bag of the present invention is a nano-titanium dioxide coating, and under the action of sunlight, the nano-titanium dioxide coating has bactericidal and bacteriostatic effects, and has a good disease control effect.

(3) the nano titanium dioxide coating of the present invention takes absolute ethanol as solvent, takes Tween, n _- butanol, acetylacetone, tetrabutyl titanate, glycerol, absolute ethanol as raw materials, and adds MoO to prepare nanometer Titanium dioxide coating has the advantages of widening the wavelength range of light absorption, strong light transmission, strong firmness, high stability, and strong photocatalysis.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the special bagging for mango of the present invention;

Fig. 2 is the sectional view of the special bagging for mango of the present invention;

In the picture, 1- mango special bag, 2- needle thread, 3- drug coating layer, 4- chitin fiber layer, 5- bamboo pulp fiber layer, 6- bag body nano-titanium dioxide coating, 7- polypropylene fiber layer , 8 - nano-titanium dioxide coating at the bottom of the bag.

Detailed ways

Embodiments are combined below. The drawings and experiments further illustrate the invention.

Example 1

As shown in Figures 1 and 2, a special cover bag 1 for mangoes with strong light transmittance includes a bag body and a bag bottom. The outside of the bag is sequentially provided with a drug coating layer 3, a chitin fiber layer 4, a bamboo pulp fiber layer 5, and a nano-titanium dioxide coating 6. The bottom of the mango special bagging bag has an inner and outer two-layer structure, and the inner layer is a polypropylene fiber layer. 7. The outer layer is a nano-titanium dioxide coating 5; a needle thread 2 is fixed on the edge of the bag mouth of the mango special bag 1. Said needle thread 2 is used to better cover the bag 1 on the mango and prevent the bag 1 from falling.

The drug coating layer 3 is composed of the following materials by weight: 0.2 part of softener, 0.2 part of retention aid, 2 parts of alanine, 5 parts of polyvinyl alcohol, 10 parts of anti-fogging resin, phthalic acid two parts 8 parts of octyl ester, 6 parts of fatty acid glycerides, 1 part of n-butanol, 9 parts of antibacterial agent, 4 parts of antifungal agent, 6 parts of insecticide, 1 part of p-toluenesulfonic acid, 20 parts of deionized water; the medicine The thickness of the coating layer 3 is 0.01mm; the antibacterial agent is chitosan, the antifungal agent is zinc pyrithione, and the insecticide is thiacloprid, flufenoxamide, diflubenzuron, spinosad , Abamectin, matrine, Beauveria bassiana, the softener is triethanolamine stearate quaternary ammonium salt, and the retention aid is guar gum.

The thickness of the chitin fiber layer 4 is 0.05 mm.

The thickness of the polypropylene fiber layer 7 is 0.1 mm.

The thickness of the bag body nano-titanium dioxide coating 6 and the bag bottom nano-titanium dioxide coating 8 are the same thickness, both are 0.1mm, the bag body nano-titanium dioxide coating 6 and the bag bottom nano-titanium dioxide coating 8 are both composed of The following raw materials were prepared in parts by mass: 20 parts of Tween, 5 parts of n-butanol, 50 parts of acetylacetone, 20 parts of tetrabutyl titanate, 14 parts of glycerol, 30 parts of absolute ethanol, and 0.1 part of molybdenum oxide. The nano titanium dioxide coating 6 is prepared by the following method: weighing Tween-60, n-butanol, acetylacetone, tetrabutyl titanate, glycerol, and absolute ethanol by mass; dissolving tetrabutyl titanate In anhydrous ethanol, add acetylacetone in turn and stir for 2h, then add glycerol, n-butanol and Tween-60 and continue stirring for 20min to obtain a TiO ₂ sol, and spread the TiO ₂ sol on the bamboo pulp fiber layer or polypropylene fiber One side of the layer was irradiated under infrared rays for 12 minutes, and then the bamboo pulp fiber layer was placed in a muffle furnace for 1 hour at 400 degrees Celsius, soaked in a 4 mol/L molybdenum oxide solution for 5 days, taken out and irradiated under infrared rays for 15 minutes, and then The bamboo pulp fiber layer was placed in a muffle furnace and kept at 350 degrees Celsius for 1 hour to obtain the nano-titanium dioxide coating.

Example 2

As shown in Figures 1 and 2, a special cover bag 1 for mangoes with strong light transmittance includes a bag body and a bag bottom. The outside of the bag is sequentially provided with a drug coating layer 3, a chitin fiber layer 4, a bamboo pulp fiber layer 5, and a nano-titanium dioxide coating 6. The bottom of the mango special bagging bag has an inner and outer two-layer structure, and the inner layer is a polypropylene fiber layer. 7. The outer layer is a nano-titanium dioxide coating 5; the edge of the bag mouth of the mango special bag 1 is fixed with needle and thread. 2. Said needle thread 2 is used to better cover the bag 1 on the mango and prevent the bag 1 from falling.

The drug coating layer 3 is composed of the following materials by weight: 0.1 part of softener, 0.3 part of retention aid, 1 part of alanine, 10 parts of polyvinyl alcohol, 5 parts of anti-fogging resin, phthalic acid two parts 10 parts of octyl ester, 3 parts of fatty acid glycerides, 5 parts of n-butanol, 4 parts of antibacterial agent, 8 parts of antifungal agent, 3 parts of insecticide, 3 parts of p-toluenesulfonic acid, 10 parts of deionized water; the medicine The thickness of the coating layer 3 is 0.1 mm; the antibacterial agent is chitosan, the antifungal agent is zinc pyrithione, the insecticide is thiacloprid, and the softener is triethanolamine stearate quaternary Ammonium salt, retention aid is guar gum,

The thickness of the chitin fiber layer 4 is 0.01 mm.

The thickness of the polypropylene fiber layer 7 is 0.3 mm.

The thickness of the bag body nano-titanium dioxide coating 6 and the bag bottom nano-titanium dioxide coating 8 are the same thickness, both of which are 0.01 mm, and the bag body nano-titanium dioxide coating 6 and the bag bottom nano-titanium dioxide coating 8 are both made of the same thickness. The following raw materials were prepared in parts by mass: 30 parts of Tween, 1 part of n-butanol, 80 parts of acetylacetone, 10 parts of tetrabutyl titanate, 17 parts of glycerol, 20 parts of absolute ethanol, and 0.3 parts of molybdenum oxide. The nano titanium dioxide coating 6 is prepared by the following method: weighing Tween-60, n-butanol, acetylacetone, tetrabutyl titanate, glycerol, and absolute ethanol by mass; dissolving tetrabutyl titanate In anhydrous ethanol, add acetylacetone in turn and stir for 2h, then add glycerol, n-butanol and Tween-60 and continue stirring for 10-20min to obtain a TiO ₂ sol, and spread the TiO ₂ sol on the bamboo pulp fiber layer or polymer. One side of the propylene fiber layer was irradiated under infrared light for 12 minutes, and then the bamboo pulp fiber layer was placed in a muffle furnace for 1 hour at 400 degrees Celsius, soaked in a 4 mol/L molybdenum oxide solution for 5 days, taken out and irradiated under infrared light for 15 minutes , and then placing the bamboo pulp fiber layer in a muffle furnace at 350 degrees Celsius for 1 hour to obtain the nano-titanium dioxide coating.

Example 3

As shown in Figures 1 and 2, a special cover bag 1 for mangoes with strong light transmittance includes a bag body and a bag bottom. The outside of the bag is sequentially provided with a drug coating layer 3, a chitin fiber layer 4, a bamboo pulp fiber layer 5, and a nano-titanium dioxide coating 6. The bottom of the mango special bagging bag has an inner and outer two-layer structure, and the inner layer is a polypropylene fiber layer. 7. The outer layer is a nano-titanium dioxide coating 5; the edge of the bag mouth of the mango special bag 1 is fixed with needle and thread. 2. Said needle thread 2 is used to better cover the bag 1 on the mango and prevent the bag 1 from falling.

The drug coating layer 3 is composed of the following materials by weight: 0.15 parts of softener, 0.25 parts of retention aid, 2 parts of alanine, 8 parts of polyvinyl alcohol, 7 parts of anti-fogging resin, phthalic acid two parts 9 parts of octyl ester, 5 parts of fatty acid glyceride, 3 parts of n-butanol, 8 parts of antibacterial agent, 7 parts of antifungal agent, 5 parts of insecticide, 2 parts of p-toluenesulfonic acid, 15 parts of deionized water; the medicine The thickness of the coating layer 3 is 0.05mm; the antibacterial agent is chitosan, the antifungal agent is zinc pyrithione, and the insecticide is thiacloprid, flufenoxamide, diflubenzuron, spinosad , the softener is triethanolamine stearate quaternary ammonium salt, and the retention aid is guar gum.

The thickness of the chitin fiber layer 4 is 0.04 mm.

The thickness of the polypropylene fiber layer 7 is 0.2 mm.

The thickness of the bag body nano-titanium dioxide coating 6 and the thickness of the bag bottom nano-titanium dioxide coating 8 are the same, both of which are 0.05 mm, and the bag body nano-titanium dioxide coating 6 and the bag bottom nano-titanium dioxide coating 8 are both made of the same thickness. The following raw materials were prepared in parts by mass: 25 parts of Tween, 3 parts of n-butanol, 70 parts of acetylacetone, 15 parts of tetrabutyl titanate, 15 parts of glycerol, 25 parts of absolute ethanol, and 0.2 parts of molybdenum oxide. The nano titanium dioxide coating 6 is prepared by the following method: weighing Tween-60, n-butanol, acetylacetone, tetrabutyl titanate, glycerol, and absolute ethanol by mass; dissolving tetrabutyl titanate In absolute ethanol, add acetylacetone in turn and stir for 2h, then add glycerol, n-butanol and Tween-60 and continue stirring for 15min to obtain a TiO ₂ sol, and spread the TiO ₂ sol on the bamboo pulp fiber layer or polypropylene fiber One side of the layer was irradiated under infrared light for 14 minutes, and then the bamboo pulp fiber layer was placed in a muffle furnace for 1 hour at 380 degrees Celsius, soaked in 4 mol/L molybdenum oxide solution for 6 days, taken out and irradiated under infrared light for 14 minutes, and then The bamboo pulp fiber layer is placed in a muffle furnace and kept at 390 degrees Celsius for 1 hour to obtain the nano-titanium dioxide coating.

In order to illustrate the technical effect of the present invention, the following control groups are set:

control group 1

The mango bags of control group 1 were ordinary paper bags.

control group 2

The mango special bagging structure of the control group 2 is the same as that of the embodiment 3, and the difference is only that: the drug coating layer of the control group 2 is composed of the following materials by weight: 0.15 part of softener, 0.25 part of retention aid, alanine 2 parts, 8 parts of polyvinyl alcohol, 9 parts of dioctyl phthalate, 3 parts of n-butanol, 8 parts of antibacterial agent, 7 parts of antifungal agent, 5 parts of insecticide, and 15 parts of deionized water.

control group 3

The mango special bagging structure of the control group 3 is the same as that of the embodiment 1, and the difference is only that: the control group 3 contains 0.2 parts of softener, 0.2 parts of retention aid, 10 parts of anti-fog resin, 6 parts of fatty acid glycerides, 1 part of alcohol, 9 parts of antibacterial agent, 4 parts of antifungal agent, 6 parts of insecticide, 1 part of p-toluenesulfonic acid, and 20 parts of deionized water; the thickness of the drug coating layer 3 is 0.01mm; The agent is chitosan, the antifungal agent is zinc pyrithione, and the insecticide is thiacloprid, flubendiamide, diflubenzuron, spinosad, abamectin, matrine, Beauveria bassiana , the softener is triethanolamine stearate quaternary ammonium salt, and the retention aid is guar gum.

control group 4

The mango-specific bagging structure of the control group 4 is the same as that of the embodiment 1, and the difference is only that: the nano-titanium dioxide coating of the bag body and the nano-titanium dioxide coating of the bag bottom of the control group 4 are both made of the following raw materials in parts by mass: Tween 20 parts, 5 parts of n-butanol, 50 parts of acetylacetone, 20 parts of tetrabutyl titanate, 14 parts of glycerol, and 30 parts of anhydrous ethanol. The preparation method of the nano titanium dioxide coating is as follows: weighing Tween-60, n-butanol, acetylacetone, tetrabutyl titanate, glycerol, and absolute ethanol by mass; dissolving the tetrabutyl titanate in the absolute ethanol Then add acetylacetone and stir for 2h, then add glycerol, n-butanol and Tween-60 and continue to stir for 20min to obtain TiO ₂ sol, and spread the TiO ₂ sol on one side of the bamboo pulp fiber layer or polypropylene fiber layer The nano-titanium dioxide coating was obtained by irradiating the bamboo pulp fiber layer for 12 minutes under infrared rays, placing the bamboo pulp fiber layer in a muffle furnace and keeping the temperature at 400 degrees Celsius for 1 hour.

control group 5

The mango special bagging structure of the control group 5 is the same as that of the embodiment 1, and the difference is only that: the nano-titanium dioxide coating of the bag body and the nano-titanium dioxide coating of the bag bottom of the control group 5 are both made of the following raw materials in parts by mass: acetylacetone 50 parts, 20 parts of tetrabutyl titanate, 14 parts of glycerol, 30 parts of anhydrous ethanol, and 0.1 part of molybdenum oxide. The nano titanium dioxide coating is prepared by the following method: weighing acetylacetone, tetrabutyl titanate, glycerol, and absolute ethanol by mass; dissolving tetrabutyl titanate in absolute ethanol, and then adding acetylacetone in turn After stirring for 2 hours, add glycerol and continue stirring for 20 minutes to obtain TiO ₂ sol, spread the TiO ₂ sol on one side of the bamboo pulp fiber layer or polypropylene fiber layer, irradiate it under infrared rays for 12 minutes, and then put the bamboo pulp fiber layer Placed in a muffle furnace, kept at 400 degrees Celsius for 1 hour, soaked in 4 mol/L molybdenum oxide solution for 5 days, taken out and irradiated with infrared rays for 15 minutes, and then placed the bamboo pulp fiber layer in a muffle furnace and kept it at 350 degrees Celsius for 1 hour. The nano-TiO2 coating.

Effect:

1. The special mango baggings of Examples 1 to 3 and Control Group 1 to Control Group 5 were applied to mango bagging, and the special mango bagging of Examples 1 to 3 and Control Group 2 to Control Group 5 could be recycled It has been in good condition for three years of continuous use and is durable. Mango bagging in control group 1 was only available for 1 year.

2. The red ivory mangoes were bagged for the special bagging of the mangoes of Examples 1 to 3 and the control group 1 to the control group 5 until they were picked.

Table 1

From Table 1, it can be seen that the mango special bagging Examples 1 to 3 of the present invention have lower spot rate, rot rate, and disease and insect damage rate than the ordinary bagging of control group 1. The bagging has better pest control effect, and the light transmission of the bag of the present invention is better than that of the ordinary paper bag, and the bagging does not need to be removed in advance, and the mango also has a clear and bright color. Compared with Example 1 to Example 3, the drug coating layer of control group 2 does not contain anti-fogging resin, fatty acid glyceride, p-toluenesulfonic acid, and the drug coating layer of control group 3 does not contain alanine, polyvinyl alcohol , dioctyl phthalate, the drug coating layer of the present invention has more stable performance, good air permeability, good drug embedding, can be firmly bonded to the chitin fiber layer, and has better pest and mildew prevention effects. Compared with Examples 1 to 3, the nano-titanium dioxide coating of the mango special bagging in control group 4 does not contain molybdenum oxide, and the nano-titanium dioxide coating of the mango special bagging in control group 5 does not contain Tween 60 and n-butanol, After the control group 4 and the control group 5 were bagged, the mango color, disease and insect damage, and long spot conditions were all worse than those of the present invention. After adding molybdenum oxide to the nano titanium dioxide coating of the invention, the light transmittance, firmness, stability and photocatalytic performance of the nano titanium dioxide coating are improved. Good sterilization effect. After adding Tween 60 and n-butanol to the nano-titanium dioxide coating of the invention, the nano-titanium dioxide coating has high stability, enhanced transparency, is beneficial to light, and has good mango color.

The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modifications completed under the technical spirit suggested by the present invention shall belong to This invention covers the scope of the patent.

Claims (7)

1. The mango special cover bag with strong light transmission is characterized by comprising a bag body and a bag bottom, wherein the bag body is made of paper, a medicine coating layer, a chitin fiber layer, a bamboo pulp fiber layer and a nano titanium dioxide coating layer are sequentially arranged from the inside to the outside of the bag on the paper, the bag bottom of the mango special cover bag is of an inner-layer structure and an outer-layer structure, the inner layer is a polypropylene fiber layer, and the outer layer is a nano titanium dioxide coating layer; the edge of the opening of the special mango bagging is fixed with a needle thread; the medicine coating layer is composed of the following materials in parts by weight: 0.1-0.2 part of a softening agent, 0.2-0.3 part of a retention aid, 1-2 parts of alanine, 5-10 parts of polyvinyl alcohol, 5-10 parts of an antifogging resin, 8-10 parts of dioctyl phthalate, 3-6 parts of fatty glyceride, 1-5 parts of n-butyl alcohol, 4-9 parts of an antibacterial agent, 4-8 parts of a mildew preventive, 3-6 parts of an insecticide, 1-3 parts of p-toluenesulfonic acid and 10-20 parts of deionized water;

the thickness of the medicine coating layer is 0.01-0.1 mm; the thickness of the chitin fiber layer is 0.01-0.05 mm.

2. The special mango bagging bag with strong light transmission according to claim 1, characterized in that: the thicknesses of the nanometer titanium dioxide coatings at the bag body and the bag bottom are consistent and are 0.01-0.1 mm.

3. The special mango bagging bag with strong light transmission according to claim 1 or 2, characterized in that: the nano titanium dioxide coating is prepared from the following raw materials in parts by mass: tween-6020-30 parts, n-butanol 1-5 parts, acetylacetone 50-80 parts, tetrabutyl titanate 10-20 parts, glycerol 14-17 parts, absolute ethyl alcohol 20-30 parts, and molybdenum oxide 0.1-0.3 part.

4. The special mango bagging bag with strong light transmission according to claim 3, characterized in that: the nano titanium dioxide coating is prepared by the following method: weighing Tween-60, n-butanol, acetylacetone, tetrabutyl titanate, glycerol and absolute ethyl alcohol according to the mass; dissolving tetrabutyl titanate in absolute ethyl alcohol, sequentially adding acetylacetone, stirring for 2 hours, adding glycerol, n-butanol and tween-60, and continuously stirring for 10-20 min to obtain TiO₂Sol of TiO₂Spreading the sol on one side surface of the bamboo pulp fiber layer or the polypropylene fiber layer, irradiating for 12-15 min under infrared rays, placing the bamboo pulp fiber layer or the polypropylene fiber layer in a muffle furnace, preserving heat for 1h at 350-400 ℃, soaking in 4mol/L molybdenum oxide solution for 5-7 d, taking out, irradiating for 12-15 min under infrared rays, placing the bamboo pulp fiber layer or the polypropylene fiber layer in the muffle furnace, preserving heat for 1h at 350-400 ℃, and obtaining the nano titanium dioxideAnd (4) coating.

5. The special mango bagging bag with strong light transmission according to claim 1, characterized in that: the thickness of the polypropylene fiber layer is 0.1-0.3 mm.

6. The special mango bagging bag with strong light transmission according to claim 1, characterized in that: the antibacterial agent is chitosan, the mildew preventive is zinc pyrithione, and the pesticide is one or more of thiacloprid, flubendiamide, diflubenzuron, spinosad, abamectin, matrine and beauveria bassiana.

7. The special mango bagging bag with strong light transmission according to claim 1, characterized in that: the softening agent is triethanolamine stearate quaternary ammonium salt, and the retention aid is guar gum.

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