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Method for preparing negative oxygen ion environment-protective antibiotic paper pulp

A technology of negative oxygen ions and pulp, which is applied in paper, papermaking, textiles and papermaking, etc., to achieve the effect of no environmental pollution, simple and easy preparation method, and good dispersibility

Inactive Publication Date: 2008-11-05
MEILIN PACKAGE PRINTING SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: to overcome the shortcomings of the existing single organic or inorganic material sterilization slurry in the prior art, to provide a negative sterilization slurry with strong action force, broad spectrum, good durability, safety, heat resistance, odorless and pollution-free Preparation method of oxygen ion environment-friendly antibacterial paper slurry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) The particle diameter is 1500nm tourmaline particle, mixes in the aqueous solution that is the silver nitrate of 0.1mol / L or the aqueous solution of 0.2mol / L copper nitrate in the pre-prepared concentration under stirring state, makes the tourmaline particle in the aqueous solution The weight percentage concentration is 10%, under the condition of 45°C constant temperature and dark condition, after stirring continuously for 5 hours, carry out precipitation, water washing and drying;

[0016] (2) Add the particles prepared in the step (1) to the titanium dioxide aqueous solution with a concentration of 30% by weight, and then add deionized water so that the concentration by weight of the mixed particles in water is 20%;

[0017] (3) The particle solution prepared in the step (2) is warmed up to 85° C., slowly adding a molar concentration of 0.3 mol / L sodium silicate aqueous solution, the ratio of the nanomoles of silicate added to the moles of silver nitrate or copper...

Embodiment 2

[0019] (1) The particle diameter is 600nm tourmaline particle, mixes in the aqueous solution that is the silver nitrate of 0.05mol / L or the aqueous solution of 0.1mol / L copper nitrate in the pre-prepared concentration under stirring state, makes the tourmaline particle in the aqueous solution The weight percent concentration is 15%, under constant temperature at 40°C and protected from light, after stirring continuously for 4 hours, carry out precipitation, washing with water, and drying;

[0020] (2) Add the particles prepared in the step (1) to the titanium dioxide aqueous solution with a concentration of 22% by weight, and then add deionized water, so that the concentration by weight of the mixed particles in water is 15%;

[0021] (3) The mixed particle solution prepared in the step (2) is warmed up to 82° C., and slowly added with a molar concentration of 0.25 mol / L sodium silicate aqueous solution. The ratio is 1:4, the dropping time is 25 minutes, the pH value of the mi...

Embodiment 3

[0023] (1) The particle diameter is 300nm tourmaline particle, mixes in the aqueous solution that is the silver nitrate of 0.15mol / L or 0.15mol / L copper nitrate in the aqueous solution of the silver nitrate or 0.15mol / L copper nitrate of pre-prepared concentration under stirring state, makes the tourmaline particle in the aqueous solution The weight percent concentration is 20%, under constant temperature at 40°C and protected from light, after stirring continuously for 3 hours, carry out precipitation, washing with water, and drying;

[0024] (2) Add the particles prepared in the step (1) to the titanium dioxide aqueous solution with a concentration of 10% by weight, and then add deionized water, so that the concentration by weight of the mixed particles in water is 15%;

[0025] (3) The mixed particle solution prepared in the step (2) is warmed up to 80° C., and the molar concentration is 0.1 mol / L sodium silicate aqueous solution slowly added, and the nanomoles of the added ...

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Abstract

The invention relates to a preparation method for negative oxygen ion environmental-protection antibiotic pulp. The preparation method adopts a natural tourmaline with the grain diameter between 300 to 1500 nm as a core, and silver nitrate ions or copper nitrate ions are attached to the surface of the tourmaline and then the ions are mixed with titanium dioxide grains, and then silicon dioxide is adopted to cover the tourmaline to obtain a porous, silicon dioxide coated and antibiotic nanometer loaded compound material which can release negative oxygen ions. The powder of tourmaline of the invention can release negative oxygen ions with sterilization, smell-eliminating and harmful chemical substance decomposing effects, while preserving the activity of titanium dioxide under photocatalysis and performing the distinct antibiotic mildew proof effects of silver nitrate ions or copper nitrate ions under dark and wet condition. The prepared pulp and corresponding products can permanently and effectively perform broad spectrum antibiotic effect for colon bacillus and staphylococcus aureus and also have the effects of environmental-protection, self-cleaning, mildew-proof and moth-proof and anti-contamination. The preparation method is easy for operation with low manufacturing cost.

Description

technical field [0001] The invention belongs to the technical field of paper pulp production and relates to a preparation method of negative oxygen ion environment-friendly and antibacterial paper pulp. Background technique [0002] Papermaking pulp and its products, such as food packaging cartons, napkins, lunch boxes, sanitary napkins, diapers, book paper, etc., when they are produced, stored, transported and used, when the temperature, humidity and nutrients are appropriate, their own It is very easy to breed and multiply bacteria and even mildew. To overcome these problems, it is usually to add organic chemical or natural bactericidal and anti-mildew materials. Although they are very effective at killing bacteria, these materials are highly volatile or migratory, so the sterilization time is short. Due to uncertain factors such as the long production process of slurry and its products, complex storage, transportation and use environment, in order to completely eliminate...

Claims

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Application Information

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IPC IPC(8): D21H21/36D21H17/16
Inventor 朱爽马春麟
Owner MEILIN PACKAGE PRINTING SHANGHAI
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