Improve the COLOR FASTNESS of plain shade decorating base paper and the method for vividness
Technical field
The invention belongs to pulp technology for making paper, be specifically related to a kind ofly improve the COLOR FASTNESS of plain shade decorating base paper and the method for vividness.
Background technology
Plain shade decorating base paper refers to that it has the features such as wide in variety, bright in luster directly through the decorating base paper of impregnation rear fender.But there is pigment in traditional production process runs off many, the drawbacks such as consumption is large, water pollutions is serious and production cost is high, color is not bright-coloured, along with continuous competition and the environmental consciousness enhancing in market, enterprise proposes energy-saving and cost-reducing, the standard of sewage zero-discharge, carries out production technology improvement for this phenomenon.
Summary of the invention
The object of this invention is to provide and a kind ofly improve the COLOR FASTNESS of plain shade decorating base paper and the method for vividness, improve keeping of pigment, decreasing pollution, reduce production cost, improve the market competitiveness.
The COLOR FASTNESS of raising plain shade decorating base paper of the present invention and the method for vividness, step is as follows:
(1) by needle slurry and broad-leaved slurry broken enter in stock tank, then selected pigment thin up 10-15 is doubly rear is filled in pulping pond with 100-200 order net skin, stirs and within 5-10 minute, makes pigment fully be attached on fiber;
(2) titanium dioxide be stirred is pumped in pulping pond stir 5-10 minute, then defibrination again; Defibrination adopts fluffer to add the series connection of double plate mill, and first discongest the mode of rear cut-out, defibrination deduction degree is 38-42 ° of SR;
(3) after having ground slurry, slurry is squeezed into add and fill out pond and carry out adding filling out, add successively and fill out PAE, retention agent and defoamer, finally regulate concentration and pH value, everything is ready slurry squeezes into and destroies forebay and prepare to manufacture paper with pulp.
The mass ratio of the needle slurry described in step (1) and broad-leaved slurry is 1:3-4.
Pigment mass described in step (1) is the 5-25% of oven dry stock quality, and oven dry stock quality is the actual slurry amount of removing needle slurry and broad-leaved slurry contained humidity.
Pigment type described in step (1) is 1-3 kind, preferred 1-2 kind.
Masstone pigment is based on liquid pigment, pigment powder is auxiliary, pigment powder also will be selected bright, (control between 0.05-1%) on a small quantity to add the hiding rare that pigment powder can improve body paper, reduce the use amount of titanium dioxide, reduce pigment type as far as possible, control within three kinds, best 1-2 kind.
Titanium dioxide quality described in step (2) is the 15-40% of oven dry stock quality, and oven dry stock quality is the actual slurry amount of removing needle slurry and broad-leaved slurry contained humidity.
The quality of the PAE described in step (3) is the 5-10% that step (2) obtains the quality of starching.
Retention agent described in step (3) is AL
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3, the quality of retention agent is the 0.5-0.8% that step (2) obtains the quality of starching.
Defoamer described in step (3) is silicone defoaming agent, and the quality of defoamer is the 0.3-0.6% that step (2) obtains the quality of starching.
Concentration described in step (3) controls between 2.8-2.9%, and pH value controls between 6-6.5.
The present invention compared with prior art, has following beneficial effect:
The present invention reduces amount of pigment, reduces production cost, because pigment cost accounts for significant proportion in dark plain color paper cost; Be conducive to the cleaning of net and felt, improve the service life of net and felt; Be conducive to the process of sewage; Bright in luster, customer satisfaction.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further.
Embodiment 1
By gross mass be the needle slurry of 1000kg and broad-leaved starch 1:3 in mass ratio broken enter in stock tank, get relative to after oven dry stock quality 20% liquid red and the mixing of 2% liquid yellow pigment, dilute with water 10 times, be filled in slurry with 100 order net skins, abundant stirring 5 minutes, then the titanium dioxide solution relative to oven dry stock quality 15% is filled in slurry with 50 order net skins, fully stirs 10 minutes, then defibrination.Defibrination adopts fluffer to add the series connection of double plate mill, and first discongest the mode of rear cut-out, defibrination deduction degree controls at 38-40 ° of SR, after having ground slurry, slurry is squeezed into add and fills out pond and carry out adding filling out, add successively and fill out PAE, AL
2(SO
4)
3and silicone defoaming agent, PAE addition is 5%, AL of the quality of slurry after mill
2(SO
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3addition is 0.5% of the quality of slurry after mill, silicone defoaming agent addition is 0.3% of the quality of slurry after mill, and finally regulate concentration and pH value, pH value should control between 6-6.5, concentration controls between 2.8-2.9%, everything is ready slurry squeeze into copy forebay prepare manufacture paper with pulp.
Embodiment 2
By gross mass be the needle slurry of 1000kg and broad-leaved starch 1:4 in mass ratio broken enter in stock tank, get relative to after the Liquid Green pigment of oven dry stock quality 10% and the mixing of 7% liquid yellow pigment, dilute with water 15 times, be filled in slurry with 200 order net skins, get and be filled in slurry relative to the powdery yellow pigment of oven dry stock quality 0.3% with 200 order net skins, abundant stirring 10 minutes, then the titanium dioxide solution relative to oven dry stock quality 20% is filled in slurry with 100 order net skins, abundant stirring 8 minutes, then defibrination.Defibrination adopts fluffer to add the series connection of double plate mill, and first discongest the mode of rear cut-out, defibrination deduction degree controls at 38-40 ° of SR, after having ground slurry, slurry is squeezed into add and fills out pond and carry out adding filling out, add successively and fill out PAE, AL
2(SO
4)
3and silicone defoaming agent, PAE addition is 10%, AL of the quality of slurry after mill
2(SO
4)
3addition is 0.8% of the quality of slurry after mill, silicone defoaming agent addition is 0.6% of the quality of slurry after mill, and finally regulate concentration and pH value, pH value should control between 6-6.5, concentration controls between 2.8-2.9%, everything is ready slurry squeeze into copy forebay prepare manufacture paper with pulp.
Embodiment 3
By gross mass be the needle slurry of 1000kg and broad-leaved starch 1:3.5 in mass ratio broken enter in stock tank, get relative to after oven dry stock quality 25% liquid red and the mixing of 4% liquid yellow pigment, dilute with water 12 times, be filled in slurry with 150 order net skins, abundant stirring 8 minutes, then the titanium dioxide solution relative to oven dry stock quality 40% is filled in slurry with 80 order net skins, fully stirs 5 minutes, then defibrination.Defibrination adopts fluffer to add the series connection of double plate mill, and first discongest the mode of rear cut-out, defibrination deduction degree controls at 38-42 ° of SR, after having ground slurry, slurry is squeezed into add and fills out pond and carry out adding filling out, add successively and fill out PAE, AL
2(SO
4)
3and silicone defoaming agent, PAE addition is 8%, AL of the quality of slurry after mill
2(SO
4)
3addition is 0.6% of the quality of slurry after mill, silicone defoaming agent addition is 0.5% of the quality of slurry after mill, and finally regulate concentration and pH value, pH value should control between 6-6.5, concentration controls between 2.8-2.9%, everything is ready slurry squeeze into copy forebay prepare manufacture paper with pulp.