Method for producing outer bag paper of apple fruit growing bag by coating method

A fruit-growing bag and coating technology, which is applied in the field of manufacturing apple fruit-growing bag outer bag paper, can solve the problems of large environmental pollution in the workshop, complicated process flow, and high production cost, and achieve pollution reduction, easy adjustment of process parameters, and The effect of high utilization

Inactive Publication Date: 2011-12-14

SHAANXI UNIV OF SCI & TECH

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AI-Extracted Technical Summary

Problems solved by technology

The fruit bag paper produced in China can basically meet the requirements of use, and the price has become a key factor in market competition. Among them, the carbon black used to provide shading performance is expensive,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Abstract

The invention discloses a method for producing outer bag paper of apple fruit growing bags by coating method, which comprises pulping, pulping, net part forming, pressing and dehydration, paint preparation, coating, drying, coiling, slitting and rewinding to obtain finished products. The apple fruit bag paper produced by the invention can be divided into base paper and coating. The light-shielding property is completed by the pigment coating containing carbon black. It has the advantages of simple production process, low cost, and less pollution. It also solves the problem of In the layering method, carbon black is used for dyeing in pulp, which causes pollution and low utilization rate. Using carbon black and porcelain clay mixed paint for low-quantity coating can obtain good light-absorbing performance and is not easy to fall off black, maintain high softness and air permeability, high carbon black utilization rate, less usage, and water resistance meet the use requirements. The invention can be used to produce the outer bag paper of the apple fruit-raising bag, can meet the growth requirement of the fruit, prevents the pollution of pesticides and the erosion of wind and rain, and enhances the color and luster of the fruit surface.

Application Domain

Water-repelling agents additionPaper coating +6

Technology Topic

PesticideCarbon black +13

Examples

Experimental program(5)

Example Embodiment

[0010] Example 1:

[0011] 1) Papermaking of base paper: beat the natural wheat straw chemical pulp and bleached hardwood pulp to 50~55°SR and 28-40°SR respectively, and then mix 60% of the pulped natural wheat straw chemical pulp and 40% of the After the bleached hardwood pulp is mixed, it is placed in the same headbox to obtain a mixed pulp, and then the mixed pulp is added to the mixing tank, and then 5% filler talcum powder of the absolute dry mass of the mixed pulp is added to the mixing tank, and 1% sizing Reagent paraffin wax-rosin glue, 5% aluminum sulfate, 0.05% wet strength agent PAE and dye direct orange 600 g/ton paper are mixed uniformly, and the base paper of outer bag paper is obtained after wire forming, pressing dehydration and drying. The basis weight is 45g/m 2;

[0012] 2) Preparation of paint: Mix the dispersion of 20% solid content sodium hexametaphosphate with water to make a 2% solid content dispersion liquid, then add china clay and carbon black to the dispersion liquid and stir and disperse to obtain a mixed liquid. Then add SBR latex to the mixed solution and stir evenly to obtain paint;

[0013] The mass ratio of carbon black: china clay is 30:70, the amount of dispersant sodium hexametaphosphate is 4% of the mass of carbon black and china clay; the volume ratio of SBR latex: dispersion is 4%;

[0014] 3) Coating: The coating prepared in step 2) is adjusted to 5g/m 2 The coating amount is coated on the base paper prepared in step 1). After drying, it is coated with water repellent XQ-3. After drying, it is rolled into paper to obtain a finished outer bag paper.

Example Embodiment

[0015] Example 2:

[0016] 1) Raw paper making: beat waste paper pulp and bleached hardwood pulp to 50~55°SR and 28~40°SR respectively, and then 70% of the beaten waste paper pulp and 30% bleached hardwood pulp according to mass parts After mixing, place the mixed slurry in the same head box, and then add the mixed slurry into the mixing tank, and then add 2% filler talcum powder with absolute dry mass of the mixed slurry and 1.5% sizing agent paraffin-rosin to the mixing tank. Glue, 3% aluminum sulfate, 0.08% wet strength agent PAE, and dye direct orange 600 g/ton paper are mixed uniformly, and then the outer bag paper base paper is obtained after wire forming, pressing dehydration and drying. The basis weight is 45g/m 2;

[0017] 2) Preparation of paint: Mix the dispersion of 30% solid content sodium hexametaphosphate with water to make a 3% solid content dispersion liquid, then add china clay and carbon black to the dispersion liquid, stir and disperse to obtain a mixed liquid, Then add SBR latex to the mixed solution and stir evenly to obtain paint;

[0018] The mass ratio of carbon black: china clay is 50:50, the amount of dispersant sodium hexametaphosphate is 3% of the mass of carbon black and china clay; the volume ratio of SBR latex: dispersion is 6%;

[0019] 3) Coating: The coating prepared in step 2) is adjusted to 5g/m 2 The coating amount is coated on the base paper prepared in step 1). After drying, it is coated with water repellent XQ-3. After drying, it is rolled into paper to obtain a finished outer bag paper.

Example Embodiment

[0020] Example 3:

[0021] 1) Raw paper making: beat the natural wheat straw chemical pulp and bleached hardwood pulp to 50~55°SR and 28~40°SR respectively, and then mix 80% of the beating natural wheat straw chemical pulp and 20% of the After the bleached hardwood pulp is mixed, it is placed in the same headbox to obtain the mixed pulp, and then the mixed pulp is added to the mixing tank, and then 4% filler talcum powder of the absolute dry mass of the mixed pulp is added to the mixing tank, 2.5% sizing Reagent paraffin wax-rosin glue, 4% aluminum sulfate, 0.1% wet strength agent PAE and dye direct orange 600 g/ton paper are mixed uniformly, and then the outer bag paper base paper is obtained after the mesh is formed, pressed and dehydrated, and dried. The basis weight is 45g/m 2;

[0022] 2) Preparation of paint: Mix the 25% solid content dispersion sodium hexametaphosphate with water to prepare a 4% solid content dispersion liquid, then add china clay and carbon black to the dispersion liquid and stir and disperse to obtain a mixed liquid. Then add SBR latex to the mixed solution and stir evenly to obtain paint;

[0023] The mass ratio of carbon black: china clay is 40:60, the amount of dispersant sodium hexametaphosphate is 2% of the mass of carbon black and china clay; the volume ratio of SBR latex: dispersion is 3%;

[0024] 3) Coating: The coating prepared in step 2) is adjusted to 5g/m 2 The coating amount is coated on the base paper prepared in step 1). After drying, it is coated with water repellent XQ-3. After drying, it is rolled into paper to obtain a finished outer bag paper.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

Simple production process

Method for producing outer bag paper of apple fruit growing bag by coating method

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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