CN107604741A - A kind of method that environmentally friendly brown paper is prepared using old newsprint - Google Patents
A kind of method that environmentally friendly brown paper is prepared using old newsprint Download PDFInfo
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- CN107604741A CN107604741A CN201710889708.0A CN201710889708A CN107604741A CN 107604741 A CN107604741 A CN 107604741A CN 201710889708 A CN201710889708 A CN 201710889708A CN 107604741 A CN107604741 A CN 107604741A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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Abstract
The invention discloses a kind of method that environmentally friendly brown paper is prepared using old newsprint, is according to 8.5 by the slurry of obtained old newsprint with U.S. useless No. 13 slurry：1.5 mass ratio is well mixed, then environmentally friendly brown paper is prepared by paper machine step of manufacturing paper with pulp；The environmentally friendly brown paper that this method is prepared is quantitative in 50~120g/m2；Mainly for the production of Chinese herbal medicine bag, documents pouch, file pouch, envelope, and for producing film laminating adhesive make packaging for foodstuff etc.；This method is to be recycled old and useless newspaper, so that the preparation of environmentally friendly brown paper does not need considerable damage plant resources, the influence to environment is preferably minimized, has obvious economic benefit and social benefit.
Description
Technical field
The present invention relates to Pulp and Paper Engineering technical field, and environmentally friendly ox is prepared using old newsprint more particularly, to one kind
The method of mulberry paper.
Background technology
Environmentally friendly brown paper (kraftpaper), it is tough and tensile water-fast package paper, generally in yellowish-brown, quantitative 80~
120g/m2.Kp softwood pulp is used as raw material more, through mashing, manufacture paper with pulp and form on fourdrinier machine；Mainly it can be used as water
Mud bag paper, M.G. pure sulphite paper, glue envelope paper dress, bituminized paper, cable protective paper, insulating paper etc..At present, the manufacture of environmentally friendly brown paper mainly with
Based on Straw Pulp and bamboo and wood slurry, it needs a large amount of felling natural resources, so as to cause the influence to environment more serious, with people
Environmental consciousness continuous enhancing, for environmental protection, reduce the felling of forest log, protect forest resources, the recovery of waste paper
Using having had attracted increasing attention, Solid Waste Treatment load in city, waste paper accounts for 1/3, and waste paper recycles, not only
Pollution can be reduced, can also reduce cost.
The content of the invention
Present invention firstly provides a kind of method that environmentally friendly brown paper is prepared using old newsprint, to solve above-mentioned technical problem
It is at least one.
A kind of method that environmentally friendly brown paper is prepared using old newsprint, it is that the slurry of obtained old newsprint gives up No. 13 with beautiful
Slurry is according to 8.5：1.5 mass ratio is well mixed, then environmentally friendly brown paper is prepared by paper machine step of manufacturing paper with pulp.
In some embodiments, the slurry of old newsprint obtained above and U.S. useless No. 13 slurry are pressed into above-mentioned mass ratio
After mixing, defibrination, beating degree is controlled between 26~28 ° of SR, and after pigmented tinting, pulp brightness is controlled at 22~26 degree, then
Environmentally friendly brown paper is prepared by paper machine step of manufacturing paper with pulp.
In some embodiments, the preparation method of the slurry of the old newsprint is：(1) deinking is reacted：Old newsprint is put
Enter high density hydraulic pulper, slurry concentration control is added into hot water between 4.5%~5.5% after pulping, temperature control exists
Between 50~60 DEG C, chemical reagent is added, NaOH dosage is 1.4%~1.6%, Na2SiO33%~3.5%, H2O2
0.2%~0.25%；Pulping time is 50min；(2) after the completion of deinking reaction, slurry is screened and purified treatment, removed
The impurity such as plastics, rope beam, ferrous metal, then flotation and washing exclude ink；The whiteness of such old newsprint slurry is up to 48~
52 degree, into paper longitudinal fracture length in 2900~3050m.
The slurry that the present invention is above-mentioned U.S. useless No. 13 is by washing, being beaten, washing again, screening, being beaten acquisition.
In some embodiments, the preparation method of U.S. useless No. 13 slurry is：By double vermicelli ox-hide corrugated papers
New leftover pieces are screened and washed again through high density hydraulic pulper pulping, then through highly concentrated slagging-off slanted screen washing, pressurized screen, cylinder machine
Concentrate slurry.
Here useless No. 13 of U.S. refers to the new leftover pieces of double vermicelli ox-hide corrugated papers：Corrugated paper leftover pieces, its liners are fiber crops
Slurry or kraft pulp, or imitative boxboard paper pulp, the packing supply of material be not allow for insoluble adhesive, deformation roll web, concave or convex
Sandwich layer etc. is mixed into, and its sandwich layer or surface layer all should be not surface treated, are not allow for debris and are mixed into, and unqualified waste paper total amount must not
More than 2%.
In some embodiments, the step of manufacturing paper with pulp is specially：Mixed slurry is through starching, dehydration, drying, squeezing, pressure
Light and curling process, that is, environmentally friendly brown paper is made.
In some embodiments, the old newsprint and U.S. useless No. 13 sieves that 0.3~0.8mm is crossed before mashing.
The environmentally friendly brown paper being prepared using the above method of the present invention is quantitative in 50~120g/m2；Mainly for the production of
Chinese herbal medicine bag, documents pouch, file pouch, envelope, and make packaging for foodstuff etc. for producing film laminating adhesive；This method is by waste and old report
Paper is recycled, so that the preparation of environmentally friendly brown paper does not need considerable damage plant resources, the influence to environment is dropped
To minimum, there is obvious economic benefit and social benefit.
Embodiment
The present invention is described in more detail with reference to embodiment.
Embodiment 1
A kind of method that environmentally friendly brown paper is prepared using old newsprint, is comprised the following steps：
(1) old newsprint processing prepares the slurry of old newsprint
1st, deinking is reacted：Old newsprint is put into high density hydraulic pulper, control slurry concentration 4.5% after pulping~
Between 5.5%, add hot water, temperature control adds chemical reagent between 50~60 DEG C, NaOH dosage for 1.4%~
1.6%, Na2SiO33%~3.5%, H2O20.2%~0.25%；Pulping time is 50min；2nd, after the completion of deinking reaction,
Slurry is screened and purified treatment, removing plastics, the impurity such as beam, ferrous metal of restricting, then flotation and washing exclude ink；Such as
The whiteness of this old newsprint slurry is up to 48 degree, into paper longitudinal fracture length in 2900m.
Through screening (cross 0.3~0.8mm), it is beaten and produces the slurry of old newsprint.
(2) processing prepares U.S. useless No. 13 slurry
By the new leftover pieces of double vermicelli ox-hide corrugated papers through high density hydraulic pulper pulping, then through it is highly concentrated slagging-off slanted screen wash
Wash, pressurized screen screens (cross 0.3~0.8mm) again and washing, and cylinder machine concentration slurry produces U.S. useless No. 13 slurry.
(3) by the slurry of old newsprint and U.S. useless No. 13 slurry according to 8.5：1.5 mass ratio mixes to obtain mixed slurry.
(4) whiteness for ensureing mixed slurry is 22 degree, and beating degree is controlled in 26 ° of SR；Through starching, dehydration, drying, squeezing,
Press polish and curling process, environmentally friendly brown paper (the environmentally friendly quantification of 50g/m of brown paper is made2)。
Embodiment 2
A kind of method that environmentally friendly brown paper is prepared using old newsprint, is comprised the following steps：
(1) old newsprint processing prepares the slurry of old newsprint
1st, deinking is reacted：Old newsprint is put into high density hydraulic pulper, control slurry concentration 4.5% after pulping~
Between 5.5%, add hot water, temperature control adds chemical reagent between 50~60 DEG C, NaOH dosage for 1.4%~
1.6%, Na2SiO33%~3.5%, H2O20.2%~0.25%；Pulping time is 50min；2nd, after the completion of deinking reaction,
Slurry is screened and purified treatment, removing plastics, the impurity such as beam, ferrous metal of restricting, then flotation and washing exclude ink；Such as
The whiteness of this old newsprint slurry is up to 49 degree, into paper longitudinal fracture length in 2950m.
Through screening (cross 0.3~0.8mm), it is beaten and produces the slurry of old newsprint.
(2) processing prepares U.S. useless No. 13 slurry
By the new leftover pieces of double vermicelli ox-hide corrugated papers through high density hydraulic pulper pulping, then through it is highly concentrated slagging-off slanted screen wash
Wash, pressurized screen screens (cross 0.3~0.8mm) again and washing, and cylinder machine concentration slurry produces U.S. useless No. 13 slurry.
(3) by the slurry of old newsprint and U.S. useless No. 13 slurry according to 8.5：1.5 mass ratio mixes to obtain mixed slurry.
(4) whiteness for ensureing mixed slurry is 23 degree, and beating degree is controlled in 27 ° of SR；Through starching, dehydration, drying, squeezing,
Press polish and curling process, environmentally friendly brown paper (the environmentally friendly quantification of 55g/m of brown paper is made2)。
Embodiment 3
A kind of method that environmentally friendly brown paper is prepared using old newsprint, is comprised the following steps：
(1) old newsprint processing prepares the slurry of old newsprint
1st, deinking is reacted：Old newsprint is put into high density hydraulic pulper, control slurry concentration 4.5% after pulping~
Between 5.5%, add hot water, temperature control adds chemical reagent between 50~60 DEG C, NaOH dosage for 1.4%~
1.6%, Na2SiO33%~3.5%, H2O20.2%~0.25%；Pulping time is 50min；2nd, after the completion of deinking reaction,
Slurry is screened and purified treatment, removing plastics, the impurity such as beam, ferrous metal of restricting, then flotation and washing exclude ink；Such as
The whiteness of this old newsprint slurry is up to 50 degree, into paper longitudinal fracture length in 3000m.
Through screening (cross 0.3~0.8mm), it is beaten and produces the slurry of old newsprint.
(2) processing prepares U.S. useless No. 13 slurry
By the new leftover pieces of double vermicelli ox-hide corrugated papers through high density hydraulic pulper pulping, then through it is highly concentrated slagging-off slanted screen wash
Wash, pressurized screen screens (cross 0.3~0.8mm) again and washing, and cylinder machine concentration slurry produces U.S. useless No. 13 slurry.
(3) by the slurry of old newsprint and U.S. useless No. 13 slurry according to 8.5：1.5 mass ratio mixes to obtain mixed slurry.
(4) whiteness for ensureing mixed slurry is 25 degree, and beating degree is controlled in 28 ° of SR；Through starching, dehydration, drying, squeezing,
Press polish and curling process, environmentally friendly brown paper (the environmentally friendly quantification of 65g/m of brown paper is made2)。
Embodiment 4
A kind of method that environmentally friendly brown paper is prepared using old newsprint, is comprised the following steps：
(1) old newsprint processing prepares the slurry of old newsprint
1st, deinking is reacted：Old newsprint is put into high density hydraulic pulper, control slurry concentration 4.5% after pulping~
Between 5.5%, add hot water, temperature control adds chemical reagent between 50~60 DEG C, NaOH dosage for 1.4%~
1.6%, Na2SiO33%~3.5%, H2O20.2%~0.25%；Pulping time is 50min；2nd, after the completion of deinking reaction,
Slurry is screened and purified treatment, removing plastics, the impurity such as beam, ferrous metal of restricting, then flotation and washing exclude ink；Such as
The whiteness of this old newsprint slurry is up to 51 degree, into paper longitudinal fracture length in 3050m.
Through screening (cross 0.3~0.8mm), it is beaten and produces the slurry of old newsprint.
(2) processing prepares U.S. useless No. 13 slurry
By the new leftover pieces of double vermicelli ox-hide corrugated papers through high density hydraulic pulper pulping, then through it is highly concentrated slagging-off slanted screen wash
Wash, pressurized screen screens (cross 0.3~0.8mm) again and washing, and cylinder machine concentration slurry produces U.S. useless No. 13 slurry.
(3) by the slurry of old newsprint and U.S. useless No. 13 slurry according to 8.5：1.5 mass ratio mixes to obtain mixed slurry.
(4) whiteness for ensureing mixed slurry is 24 degree, and beating degree is controlled in 27 ° of SR；Through starching, dehydration, drying, squeezing,
Press polish and curling process, environmentally friendly brown paper (the environmentally friendly quantification of 75g/m of brown paper is made2)。
Embodiment 5
A kind of method that environmentally friendly brown paper is prepared using old newsprint, is comprised the following steps：
(1) old newsprint processing prepares the slurry of old newsprint
1st, deinking is reacted：Old newsprint is put into high density hydraulic pulper, control slurry concentration 4.5% after pulping~
Between 5.5%, add hot water, temperature control adds chemical reagent between 50~60 DEG C, NaOH dosage for 1.4%~
1.6%, Na2SiO33%~3.5%, H2O20.2%~0.25%；Pulping time is 50min；2nd, after the completion of deinking reaction,
Slurry is screened and purified treatment, removing plastics, the impurity such as beam, ferrous metal of restricting, then flotation and washing exclude ink；Such as
The whiteness of this old newsprint slurry is up to 52 degree, into paper longitudinal fracture length in 3000m.
Through screening (cross 0.3~0.8mm), it is beaten and produces the slurry of old newsprint.
(2) processing prepares U.S. useless No. 13 slurry
By the new leftover pieces of double vermicelli ox-hide corrugated papers through high density hydraulic pulper pulping, then through it is highly concentrated slagging-off slanted screen wash
Wash, pressurized screen screens (cross 0.3~0.8mm) again and washing, and cylinder machine concentration slurry produces U.S. useless No. 13 slurry.
(3) by the slurry of old newsprint and U.S. useless No. 13 slurry according to 8.5：1.5 mass ratio mixes to obtain mixed slurry.
(4) whiteness for ensureing mixed slurry is 26 degree, and beating degree is controlled in 28 ° of SR；Through starching, dehydration, drying, squeezing,
Press polish and curling process, environmentally friendly brown paper (the environmentally friendly quantification of 95g/m of brown paper is made2)。
Embodiment 6
A kind of method that environmentally friendly brown paper is prepared using old newsprint, is comprised the following steps：
(1) old newsprint processing prepares the slurry of old newsprint
1st, deinking is reacted：Old newsprint is put into high density hydraulic pulper, control slurry concentration 4.5% after pulping~
Between 5.5%, add hot water, temperature control adds chemical reagent between 50~60 DEG C, NaOH dosage for 1.4%~
1.6%, Na2SiO33%~3.5%, H2O20.2%~0.25%；Pulping time is 50min；2nd, after the completion of deinking reaction,
Slurry is screened and purified treatment, removing plastics, the impurity such as beam, ferrous metal of restricting, then flotation and washing exclude ink；Such as
The whiteness of this old newsprint slurry is up to 52 degree, into paper longitudinal fracture length in 3050m.
Through screening (cross 0.3~0.8mm), it is beaten and produces the slurry of old newsprint.
(2) processing prepares U.S. useless No. 13 slurry
By the new leftover pieces of double vermicelli ox-hide corrugated papers through high density hydraulic pulper pulping, then through it is highly concentrated slagging-off slanted screen wash
Wash, pressurized screen screens (cross 0.3~0.8mm) again and washing, and cylinder machine concentration slurry produces U.S. useless No. 13 slurry.
(3) by the slurry of old newsprint and U.S. useless No. 13 slurry according to 8.5：1.5 mass ratio mixes to obtain mixed slurry.
(4) whiteness for ensureing mixed slurry is 26 degree, and beating degree is controlled in 28 ° of SR；Through starching, dehydration, drying, squeezing,
Press polish and curling process, environmentally friendly brown paper (the environmentally friendly quantification of 115g/m of brown paper is made2)。
The environmentally friendly brown paper that above-described embodiment 1 to embodiment 6 is prepared carries out performance characterization, as a result such as table 1.
Table 1
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (5)
- A kind of 1. method that environmentally friendly brown paper is prepared using old newsprint, it is characterised in that by the slurry of obtained old newsprint and U.S. Useless No. 13 slurry is according to 8.5：1.5 mass ratio is well mixed, then environmentally friendly brown paper is prepared by paper machine step of manufacturing paper with pulp.
- 2. the method according to claim 1 that environmentally friendly brown paper is prepared using old newsprint, it is characterised in that the old newsprint With U.S. useless No. 13 sieves for crossing before mashing 0.3~0.8mm.
- 3. the method according to claim 1 that environmentally friendly brown paper is prepared using old newsprint, it is characterised in that the old newsprint The preparation method of slurry be：(1) deinking is reacted：Old newsprint after pulping by slurry concentration control 4.5%~5.5% it Between, hot water is added, temperature control adds chemical reagent between 50~60 DEG C, and NaOH dosage is 1.4%~1.6%, Na2SiO33%~3.5%, H2O20.2%~0.25%；(2) deinking reaction after the completion of, slurry is screened and purification at Reason, impurity is removed, then flotation and washing exclude ink；The whiteness of such old newsprint slurry is up to 48~52 degree, into paper Longitudinal fracture length is in 2900~3050m.
- 4. the method according to claim 1 that environmentally friendly brown paper is prepared using old newsprint, it is characterised in that described U.S. useless 13 Number the preparation method of slurry be：After pulping, washed through slanted screen, pressurized screen is screened and washed again, and concentration slurry produces.
- 5. the method according to claim 1 that environmentally friendly brown paper is prepared using old newsprint, it is characterised in that the slurry of old newsprint The whiteness of the mixed slurry obtained after material and U.S. useless No. 13 slurry mixing is 22~26 degree；Beating degree is controlled in 26~28 ° of SR.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109403117A (en) * | 2018-11-07 | 2019-03-01 | 广州市咏润纸业科技有限公司 | Composite kraft paper and preparation method thereof |
| CN113832775A (en) * | 2021-07-23 | 2021-12-24 | 广州造纸股份有限公司 | Environment-friendly orange bubble bag envelope paper and preparation method thereof |
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| CN113832775A (en) * | 2021-07-23 | 2021-12-24 | 广州造纸股份有限公司 | Environment-friendly orange bubble bag envelope paper and preparation method thereof |
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| CN107604741B (en) | 2018-10-12 |
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