Special acid-free paper for protection of historical relics and manufacturing method thereof

A technology for cultural relic protection and acid-free paper, applied in the field of papermaking, can solve the problems of inability to effectively absorb acid gas erosion, inability to adjust the change of humidity in the storage microenvironment, etc., and achieve the effect of good absorption performance

Inactive Publication Date: 2008-12-24
NANJING FORESTRY UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the current acid-free paper containing chlorine, which is prone to acid corrosion, cannot effectively absorb or buffer the acid gas er

Method used

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  • Special acid-free paper for protection of historical relics and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 Cultural relic protection acid-free paper and its manufacture method:

[0026] 1. The quality percentage ratio of acid-free paper raw materials for cultural relics protection is:

[0027] Dry chlorine-free bleached softwood pulp 85%, white activated carbon 2.0%, silica gel 3.0%, calcium carbonate 3.4%, polyamine polyamide epichlorohydrin resin 1.6% and deionized water 5%.

[0028] 2. Manufacturing method of acid-free paper for cultural relics protection:

[0029] (1) Preparation of pulp fiber suspension: disperse the absolute dry chlorine-free bleached kraft softwood pulp with deionized water into a fiber suspension with a concentration of 0.5%;

[0030] (2) Add 2.0% white activated carbon, 3.0% silica gel, 3.4% calcium carbonate and 1.6% polyamine polyamide epichlorohydrin resin to the dispersed pulp suspension, and stir evenly;

[0031] (3) Filter and dehydrate the pulp suspension with additives through a forming wire, and dry the wet paper sheet at 105...

Embodiment 2

[0032] Example 2 Cultural Relics Protection Acid-free paper and its manufacturing method.

[0033] 1. The quality percentage ratio of acid-free paper raw materials for cultural relics protection is:

[0034] Dry chlorine-free bleached kraft hardwood pulp 82%, porous calcium phosphate 2.0%, white activated carbon 5.0%, calcium carbonate 3.0%, polyamine polyamide epichlorohydrin resin 1.6% and deionized water 6.4%.

[0035] 2. Production method of acid-free paper for cultural relics protection:

[0036] (1) Preparation of pulp fiber suspension: disperse the absolute dry chlorine-free bleached kraft hardwood pulp with deionized water into a fiber suspension with a concentration of 0.5%;

[0037] (2) Add 2.0% porous calcium phosphate, 5.0% white activated carbon, 3.0% calcium carbonate and 1.6% polyamine polyamide epichlorohydrin resin to the dispersed pulp suspension, and stir evenly;

[0038] (3) Filtering and dehydrating the pulp suspension with additives added in step (2) th...

Embodiment 3

[0039]Example 3 Cultural Relics Protection Acid-free paper and its manufacturing method.

[0040] 1. The quality percentage ratio of acid-free paper raw materials for cultural relics protection is:

[0041] Absolutely dry chlorine-free bleached hardwood pulp and hydrogen peroxide bleached cotton pulp 1:1 mixed pulp 90%, white activated carbon 1.0%, porous calcium phosphate 3.0%, calcium carbonate 2.0%, polyamine polyamide epichlorohydrin Resin 1.0% and deionized water 3%.

[0042] 2. Production method of acid-free paper for cultural relics protection:

[0043] (1) Preparation of pulp fiber suspension: disperse the mixed pulp of absolutely dry chlorine-free bleached hardwood pulp and hydrogen peroxide bleached cotton pulp into a fiber suspension with a concentration of 0.5% with deionized water;

[0044] (2) Add 1.0% white activated carbon, 3.0% porous calcium phosphate, 2.0% calcium carbonate and 1.0% polyamine polyamide epichlorohydrin resin to the dispersed pulp suspension...

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Abstract

The invention provides acid free paper special for the historic preservation, consisting of plant pulp fiber, an aggressive gas adsorbing agent, a humidity adjusting agent, a pH buffering agent and a wet strengthening agent, which are mixed according to a certain mass percentage. The preparation method comprises the following steps that: firstly, the plant pulp fiber is added with de-ionized water to be scattered into a fiber suspending liquid; secondly, the aggressive gas adsorbing agent, the humidity adjusting agent, the pH buffering agent and the wet strengthening agent are added into the defibered paper pulp suspending liquid and are stirred evenly; finally, the mixture is formed on a paper sheet-making machine and is filtered and dewatered so that a wet paper disc is obtained; and the acid free paper special for the historic preservation is obtained by drying the wet paper disc. The special acid free paper have no acid substance, adopts the chlorine bleaching free paper pulp, adds calcium phosphate taken as the buffering agent, is alkalescence, has good adsorbing effect of acid gas, has the function of adjusting the humidity of the microspace environment of the protective article, and has the advantage of recycling.

Description

1. Technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to an acid-free paper (cardboard) for protecting cultural relics and a preparation method thereof. 2. Background technology [0002] As the carrier of history, art and scientific development, on the one hand, with the development and progress of social economy, people pay more and more attention to cultural relics; Materials will age with time, and the degree of damage will become more prominent until they die out; at the same time, the human damage factors in the process of collection, storage, display, packaging and transportation of cultural relics, especially the environmental factors caused by the damage to cultural relics The problem has already attracted the attention of cultural relics protection workers around the world. Once the cultural relics are damaged or perish, the historical, artistic and scientific connotations attached to them will no longer ex...

Claims

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Application Information

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IPC IPC(8): D21H27/10D21H11/00D21H21/38D21H21/14D21H21/20D21H17/66D21H17/55D21H17/56D21H17/52D21C3/00D21H23/04
Inventor 戴红旗吴来明洪瑜徐文娟解玉林
Owner NANJING FORESTRY UNIV
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