CN1143132A - Washing method for renewing and reusing waste felt in paper making industry - Google Patents
Washing method for renewing and reusing waste felt in paper making industry Download PDFInfo
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- CN1143132A CN1143132A CN 95110581 CN95110581A CN1143132A CN 1143132 A CN1143132 A CN 1143132A CN 95110581 CN95110581 CN 95110581 CN 95110581 A CN95110581 A CN 95110581A CN 1143132 A CN1143132 A CN 1143132A
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Abstract
The washing processes include natural oxidation, pre-washing, scrubbing in oxalic acid solution to remove rust, soaking and washing in water solution of caustic soda, soaking and washing in water solution of detergent, soaking in water solution of corn starch and stoving. The waste felt after the said washing processes is soft and practical, and it may be widely used.
Description
The present invention relates to a kind of washing methods, particularly a kind of paper industry waste wool felt upgrades the washing methods that utilizes.
At present, the waste wool felt that papermaking producer changes in paper technology in a large number in the society, mostly fall as waste disposal, this not only causes waste and should form environmental pollution, people once attempted a large amount of felts that change are upgraded utilization, but do not explore the method that a kind of desirable renewal utilizes so far yet, so a large amount of felts that change in the present paper technology still fall as waste disposal.
Task of the present invention is to provide a kind of paper industry waste wool felt to upgrade the washing methods that utilizes, and have easy, practical, be suitable for universal advantage, have quality softness, lovely luster, practical with the waste wool felt after this method washing, can be extensively as civilian felt, as felt cotton-padded mattress, felt shoe-pad etc., also can be again as industrial felt.
Task of the present invention takes following scheme to realize.
Technical essential of the present invention is earlier the waste wool felt volume that changes in the paper industry to be put into capable autoxidation to handle, waste wool felt after autoxidation is handled is put into clear water and is soaked into prewashing, clean the removal rusty stain with oxalic acid solution after the prewashing, put into the caustic-soda aqueous solution extruding and wash scale removal, clear water rinsing by rubbing with the hands, put into the water-detergent solution immersion again and stir, rub, clean to take out and dry in the air, put into corn starch solution immersion removal moisture again and dry to half-dried.
Method step of the present invention is: a, the waste wool felt that changes in paper industry volume put carried out autoxidation in 2-6 month and handle; B, after autoxidation is handled, put into temperature and soak prewashing 20-40 minute, take out and squeeze the branch that anhydrates at 15 ℃-35 ℃ clear water; Put into concentration after c, the prewashing and be the oxalic acid aqueous solution of 2-6% and heat and mark to the clean back of derusting is cleaned at the rusty stain place after 40-60 ℃ and take out; Put into concentration behind d, the mark that derusts and be the caustic-soda aqueous solution of 2%-18% and its caustic-soda aqueous solution is remained on soak under 10 ℃-60 ℃ the temperature put into after 1-6 hour extruding wash by rubbing with the hands machine or by hand the method extruding wash dirt by rubbing with the hands and reach and put into the clear water rinsing behind the 50-70% and take out to clean; E, to put into cleaning machine be that the water-detergent solution of 2-10% soaks to take out after stirring 1-4 hour and dries in the air to half-dried in concentration; F, washing are dried in the air, and to put into concentration after half-dried be that 3 ‰-6 ‰ the cornstarch aqueous solution soaks to take out after 10-60 minute and dries or dry.
Below be specific embodiments of the invention:
Embodiment 1
The waste wool felt volume that paper industry is changed is put and was carried out autoxidation in 2 months and handle, putting into temperature and be 15 ℃ clear water after autoxidation is handled soaks prewashing and took out in 20 minutes and squeeze the branch that anhydrates, put into concentration and be 2% oxalic acid aqueous solution and heat after 40 ℃ the rusty stain place cleaned to clean back and take out, put into concentration and be 2% caustic-soda aqueous solution and make its remain on soak under 10 ℃ of temperature put into after 1 hour extruding wash by rubbing with the hands machine or by hand method wash by rubbing with the hands and put into the clear water rinsing after dirt reaches 50% and take out to clean, putting into cleaning machine is that 2% water-detergent solution soaks in concentration, took out after stirring 1 hour and dry in the air, put into concentration and be 3 ‰ the cornstarch aqueous solution and soak and take out oven dry after 10 minutes to half-dried.
Embodiment 2
The waste wool felt volume that paper industry is changed is put and was carried out autoxidation in 6 months and handle, the clear water of putting into temperature and be 35 ℃ after autoxidation is handled soaks prewashing 40 minutes, taking-up squeezes the water out, put into concentration and be 6% oxalic acid aqueous solution and heat after 60 ℃ the rusty stain place cleaned to clean back and take out, put into concentration and be 18% caustic-soda aqueous solution and make its remain on soak under 60 ℃ of temperature put into after 6 hours extruding wash by rubbing with the hands machine or by hand method wash by rubbing with the hands and put into the clear water rinsing after reaching 70% behind the dirt and take out to clean, putting into cleaning machine is that 10% water-detergent solution soaks in concentration, took out after stirring 4 hours and dry in the air half-driedly, put into concentration and be 6 ‰ the cornstarch aqueous solution and soak and take out oven dry after 60 minutes.
Embodiment 3
The waste wool felt volume that paper industry is changed is put and was carried out autoxidation in 4 months and handle, the clear water of putting into temperature and be 25 ℃ after autoxidation is handled soaks prewashing 30 minutes, taking-up squeezes the water out, put into concentration and be 4% oxalic acid aqueous solution and heat after 50 ℃ the rusty stain place cleaned to clean back and take out, put into concentration and be 10% caustic-soda aqueous solution and make its remain on soak under 30 ℃ of temperature put into after 3 hours extruding wash by rubbing with the hands machine or by hand method wash by rubbing with the hands and put into the clear water rinsing after reaching 60% behind the dirt and take out to clean, putting into cleaning machine is that 7% water-detergent solution soaks in concentration, took out after stirring 2.5 hours and dry in the air half-driedly, put into concentration and be 4 ‰ the cornstarch aqueous solution and soak and take out oven dry after 30 minutes.
The embodiment of the invention 3 is a most preferred embodiment.
In sum, the paper industry waste wool felt that adopts this washing methods to wash out has quality softness, lovely luster, can also can be used as industrial felt extensively as civilian felt, can effectively realize task of the present invention, for paper industry waste wool felt provides a kind of new method of upgrading utilization.
Claims (1)
- A kind of paper industry waste wool felt upgrades the washing methods that utilizes, and it is characterized in that:A, the waste wool felt that changes in paper industry volume put carried out autoxidation in 2-6 month and handle;B, after autoxidation is handled, put into temperature and soak prewashing 20-40 minute, take out and squeeze the branch that anhydrates at 15 ℃-35 ℃ clear water;Put into concentration after c, the prewashing and be the oxalic acid aqueous solution of 2-6% and heat and mark to the clean back of derusting is cleaned at the rusty stain place after 40-60 ℃ and take out;Put into concentration behind d, the mark that derusts and be the caustic-soda aqueous solution of 2%-18% and its caustic-soda aqueous solution is remained on soak under 10 ℃-60 ℃ the temperature put into after 1-6 hour extruding wash by rubbing with the hands machine or by hand the method extruding wash dirt by rubbing with the hands and reach and put into the clear water rinsing behind the 50-70% and take out to clean;E, to put into cleaning machine be that the water-detergent solution of 2-10% soaks to take out after stirring 1-4 hour and dries in the air to half-dried in concentration;F, washing are dried in the air, and to put into concentration after half-dried be that 3 ‰-6 ‰ the cornstarch aqueous solution soaks to take out after 10-60 minute and dries or dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95110581 CN1143132A (en) | 1995-08-11 | 1995-08-11 | Washing method for renewing and reusing waste felt in paper making industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95110581 CN1143132A (en) | 1995-08-11 | 1995-08-11 | Washing method for renewing and reusing waste felt in paper making industry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1143132A true CN1143132A (en) | 1997-02-19 |
Family
ID=5077951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95110581 Pending CN1143132A (en) | 1995-08-11 | 1995-08-11 | Washing method for renewing and reusing waste felt in paper making industry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1143132A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613974B (en) * | 2008-06-24 | 2012-08-29 | 市川株式会社 | Felt for papermaking and a method of manufacturing the same |
| CN109295790A (en) * | 2018-12-14 | 2019-02-01 | 玖龙纸业（东莞）有限公司 | A kind of felt cleaning method |
| CN110735350A (en) * | 2018-07-20 | 2020-01-31 | 玖龙纸业(天津)有限公司 | On-line acid-base cleaning method for kinds of coarse cotton cloth |
-
1995
- 1995-08-11 CN CN 95110581 patent/CN1143132A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613974B (en) * | 2008-06-24 | 2012-08-29 | 市川株式会社 | Felt for papermaking and a method of manufacturing the same |
| CN110735350A (en) * | 2018-07-20 | 2020-01-31 | 玖龙纸业(天津)有限公司 | On-line acid-base cleaning method for kinds of coarse cotton cloth |
| CN109295790A (en) * | 2018-12-14 | 2019-02-01 | 玖龙纸业（东莞）有限公司 | A kind of felt cleaning method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |