Preparation method of plant fiber cushion packaging material

A plant fiber and buffer packaging technology, applied in the field of packaging materials, can solve the problems of no industrialized products, and achieve the effect of improving the foaming ratio, low density and high elasticity ratio.

Inactive Publication Date: 2014-05-07
NANTONG TIANHE PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic scholars have done some research on plant straw cushioning packaging materials, but they are all in their infancy, and no industrialized products have yet come out.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A preparation method of plant fiber cushioning packaging material, comprising the steps of:

[0015] 1) Crush the plant fiber, soak in 5% sodium hydroxide for 18 hours, filter and collect the filter cake, and dry;

[0016] 2) Prepare a polyvinyl alcohol solution with a mass concentration of 5%, add the dried plant fiber in step 1), then add glycerin, sodium bicarbonate, azodicarbonamide, ammonium bicarbonate, and place in a stirrer Stir until fully mixed to obtain a mixed slurry; wherein polyvinyl alcohol: plant fiber: glycerol: sodium bicarbonate: azodicarbonamide: ammonium bicarbonate in a mass ratio of 10: 20: 3: 1: 1.2: 2.

[0017] 3) Put the mixed slurry obtained in step 2) into a foaming mold, and microwave foaming with a foaming power of 600W to obtain a plant fiber cushioning packaging material.

Embodiment 2

[0019] A preparation method of plant fiber cushioning packaging material, comprising the steps of:

[0020] 1) Crush the plant fibers, soak in 10% sodium hydroxide for 30 hours, filter to collect the filter cake, and dry;

[0021] 2) Prepare a polyvinyl alcohol solution with a mass concentration of 10%, add the dried plant fiber in step 1), then add glycerin, sodium bicarbonate, azodicarbonamide, ammonium bicarbonate, and place in a stirrer Stir until fully mixed to obtain a mixed slurry; wherein polyvinyl alcohol: plant fiber: glycerol: sodium bicarbonate: azodicarbonamide: ammonium bicarbonate in a mass ratio of 15:30:5:3:1.8: 6.

[0022] 3) Put the mixed slurry obtained in step 2) into a foaming mold, and microwave foaming with a foaming power of 1200W to obtain a plant fiber cushioning packaging material.

Embodiment 3

[0024] A preparation method of plant fiber cushioning packaging material, comprising the steps of:

[0025] 1) Crush the plant fiber, soak in 10% sodium hydroxide for 24 hours, filter to collect the filter cake, and dry;

[0026] 2) Prepare a polyvinyl alcohol solution with a mass concentration of 10%, add the dried plant fiber in step 1), then add glycerin, sodium bicarbonate, azodicarbonamide, ammonium bicarbonate, and place in a stirrer Stir until fully mixed to obtain a mixed slurry; wherein polyvinyl alcohol: plant fiber: glycerol: sodium bicarbonate: azodicarbonamide: ammonium bicarbonate in a mass ratio of 15:30:5:3:1.8: 6.

[0027] 3) Put the mixed slurry obtained in step 2) into a foaming mold, and microwave foaming with a foaming power of 1000W to obtain a plant fiber cushioning packaging material.

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Abstract

The invention discloses a preparation method of a plant fiber cushion packaging material. The preparation method comprises the steps of 1) grinding plant fiber, soaking the ground plant fiber in sodium hydroxide for 18-30 hours, filtering and collecting a filter cake, and drying the filter cake; 2) preparing a polyvinyl alcohol solution which is 5-10% in mass concentration, adding the plant fiber dried by the step 1), adding glycerol, sodium bicarbonate, azodicarbonamide and ammonium bicarbonate, and stirring the materials in a stirrer until the materials are completely and uniformly mixed to obtain a mixed sizing material, wherein the mass ratio of the polyvinyl alcohol to the plant fiber to the glycerol to the sodium bicarbonate to the azodicarbonamide to the ammonium bicarbonate is (10-15): (20-30): (3-5): (1-3): (1.2-1.8): (2-6); and 3) adding the mixed sizing agent obtained from the step 2) in a foaming mold and foaming through microwave to obtain the plant fiber cushion packaging material. The prepared foamed material is low in density and high in elastic ratio, and is specifically suitable for cushion packaging.

Description

technical field [0001] The invention belongs to the technical field of packaging materials, and in particular relates to a preparation method of plant fiber cushioning packaging materials. Background technique [0002] The rapid and frequent flow of resources is the basic feature of modern economic development. The packaging industry developed as a necessary condition for resource flow has changed from a low-relationship and low-value-added energy-consuming industry in the circular economy industry chain. , Gradually develop into a high value-added green industry with a number of circular connection methods and a high degree of correlation. Green packaging has the least environmental burden and the highest recycling rate in the whole life cycle. Green packaging material is the core of green packaging. It can not only reduce and eliminate environmental pollution, alleviate the pressure on the ecological environment, but also save resources. Therefore, it has attracted gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/08C08J9/10C08L97/02C08L29/04B65D65/38
Inventor 赵平
Owner NANTONG TIANHE PACKING
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