CN111593610A - Production process and production equipment of soft and smooth facial tissue - Google Patents
Production process and production equipment of soft and smooth facial tissue Download PDFInfo
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- CN111593610A CN111593610A CN202010471437.9A CN202010471437A CN111593610A CN 111593610 A CN111593610 A CN 111593610A CN 202010471437 A CN202010471437 A CN 202010471437A CN 111593610 A CN111593610 A CN 111593610A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/18—Reinforcing agents
- D21H21/20—Wet strength agents
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- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention relates to a production process of soft and smooth facial tissue, which comprises the following steps: preparing twenty-five parts of bamboo fibers and fifty-five parts of softwood fibers into long fiber wood pulp, and preparing twenty-five parts of bagasse fibers, fifty parts of hardwood fibers and twenty-five parts of straw fibers into short fiber wood pulp; after the long fiber wood pulp is disintegrated, defibering the fibers by a defibering machine, pulping the fibers by a pulping machine to obtain beaten long fiber wood pulp, after the short fiber wood pulp is disintegrated, defibering the fibers by the defibering machine, pulping the beaten long fiber wood pulp, pumping the long fiber wood pulp and the short fiber wood pulp into a mixed pulp pond, adding and adding a certain amount of wet strength agent to obtain mixed pulp, and adjusting the mixed pulp into pulp by water; diluting with fan pump, feeding into paper machine, forming, squeezing and drying to obtain the final product. The prepared facial tissue has higher smoothness, and the wet strength agent is dialdehyde starch and chitosan, so that the facial tissue not only has higher wet strength, but also is easy to degrade and is green and environment-friendly.
Description
Technical Field
The invention relates to the technical field of paper production, in particular to a production process and production equipment of soft and smooth facial tissue.
Background
With the development of society and the improvement of living standard of people, the quantity and the variety of various daily paper are greatly increased in the global range, and various disposable daily paper is endlessly layered, and particularly the paper for women, children and the old is richer in variety. The facial tissues are more and more introduced into the daily life of people, and the facial tissues, paper handkerchiefs, napkins, purse paper and the like packed in boxes greatly facilitate the life of people. The face tissue is a kind of daily use paper, and has higher requirements on the aspects of fineness, softness, sanitation and the like of finished paper than common toilet paper. The common facial tissues on the market have insufficient strength after meeting water, are easy to fester into pulp, leave pulp lumps and paper powder at wiping positions, bring inconvenience and trouble to users and are difficult to meet different requirements of different crowds. At present, in order to improve the strength of the face tissues after meeting water and improve the wet strength of the face tissues in the prior art, a common method is to add a wet strength agent. The wet strength agent reacts and crosslinks with each other through self groups, the generated chemical crosslinking can generate a staggered network structure around fibers, the chemical crosslinking bond is difficult to hydrolyze by water, so that the water absorption swelling of hemicellulose and cellulose in the paper is prevented, the strength loss of the facial tissue under the wet condition is reduced, and meanwhile, the wet strength agent reacts with the cellulose to form chemical bonds (covalent bonds or ionic bonds) and simultaneously, the hydrogen bonds existing in the wet strength agent are enhanced. The covalent bonds formed between the reactive groups of the wet strength agent and the hydroxyl groups of the cellulose are not broken by wetting of the paper. The cationic polymeric wet strength agent also forms ionic bonds with the anions on the cellulose surface in an amount and strength sufficient to prevent interaction of the fibers with water, thereby creating wet strength. The existing facial tissue has poor proportioning degree, unreasonable wet strength agent addition amount, difficult degradation after solidification and low smoothness, the wet strength agent addition adopts a manual addition mode, the addition amount is difficult to control, the obtained target quality is greatly different from the expectation, the error between the actual input amount and the set amount of the existing facial tissue production line is large, the quality of the produced facial tissue is difficult to control, and the improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a production process and production equipment for soft-smooth facial tissue, which have high smoothness, small production deviation between target quality and expected quality and proper quality control.
The technical scheme of the invention is realized as follows: the production process of the soft and smooth facial tissue is characterized by comprising the following steps:
s1, preparing twenty-five parts of bamboo fibers and fifty parts of softwood fibers into long fiber wood pulp, and preparing twenty-five parts of bagasse fibers, fifty parts of hardwood fibers and twenty-five parts of straw fibers into short fiber wood pulp;
s2, adding water into a long fiber wood pulp pulper to adjust the wood pulp concentration to 4.5-5.5 wt%, after the wood pulp is disintegrated for 10-12 minutes, defibering the obtained pulped material by a defibering machine, pulping by a beater, cutting and devillicate brooming the fibers to obtain the knocked long fiber wood pulp, wherein the beating degree is 30-35 SR, and the length of the long fiber of the knocked long fiber wood pulp is controlled to be 2-2.5 mm;
s3, adding water into a short fiber wood pulp pulper to adjust the wood pulp concentration to 6.5-7.5 wt%, after the wood pulp is disintegrated for 10-18 minutes, defibering the obtained pulped matter by a defibering machine, pulping by a beater, cutting and fibrillation the fibers to obtain long fiber wood pulp after beating, wherein the beating degree is 30-35 DEG SR, and the length of the long fiber of the short fiber wood pulp after beating is controlled to be less than 1 mm;
s4, pumping the long fiber wood pulp and the short fiber wood pulp into a mixed pulp tank according to the weight, adding a certain amount of wet strength agent to obtain mixed pulp, wherein the mixed pulp comprises the following components in percentage by weight: the content of long fiber wood pulp is 79-81 wt%, the content of short fiber wood pulp is 18.2-20.2 wt%, the content of wet strength agent is 0.8 wt%, the wet strength agent is dialdehyde starch and chitosan, the proportion is 1:2, and the mixed pulp is adjusted to be pulp with the concentration of 2.9-3.1% by water;
s5, diluting the mixture by a fan pump to a concentration of 0.6-0.8 wt%, entering a paper machine, and forming, squeezing and drying to obtain the product.
By adopting the technical scheme, the proportion and the length of the long fibers and the short fibers are adjusted, the facial tissue can have high wet strength only under the condition of 0.8 wt% of wet strength agent, the content of the long fiber wood pulp is 79-81 wt%, the content of the short fiber wood pulp is 18.2-20.2 wt%, the wet strength agent is dialdehyde starch and chitosan, the proportion is 1:2, the mixed pulp is adjusted into finished pulp with the concentration of 2.9-3.1% by using water under the condition of not using a softening agent and other additives, and the prepared facial tissue has high soft smoothness, and the wet strength agent is dialdehyde starch and chitosan, so that the facial tissue has high wet strength, is easy to degrade and is green and environment-friendly.
The invention also discloses production equipment suitable for the production process of the soft and smooth facial tissue, which comprises a long fiber processing production line, a short fiber pulper, a short fiber fluffer and a short fiber beater, wherein the long fiber processing production line is used for processing long fiber wood pulp and is sequentially connected with the long fiber pulper, the long fiber fluffer and the long fiber beater, the short fiber pulper, the short fiber fluffer and the short fiber beater are used for processing short fiber wood pulp, the long fiber beater and the short fiber beater are respectively connected with a mixed pulp pond through a first pipe and a second pipe, and the first pipe and the second pipe are respectively provided with a first control pump and a second control pump, and the production equipment is characterized: and a proportional mixing control assembly for controlling the first control pump and the second control pump to pump the long fiber wood pulp and the short fiber wood pulp according to the selected mixing proportion is arranged between the first control pump and the second control pump.
By adopting the technical scheme, the proportion mixing control assembly for controlling the first control pump and the second control pump to pump the long fiber wood pulp and the short fiber wood pulp according to the selected mixing proportion is arranged between the first control pump and the second control pump, the proportion mixing control assembly is utilized to control the long fiber wood pulp and the short fiber wood pulp to be led out from the long fiber beating machine and the short fiber beating machine, the long fiber wood pulp and the short fiber wood pulp are led into the mixing pulp tank according to the proportion required by setting during production to be mixed and processed, and the use is simple and convenient.
The invention is further configured to: the device also comprises a central control host used for inputting the mixing proportion and the quality of the long fiber wood pulp, the proportion mixing control component comprises a first motor used for driving the first control pump to work, a first controller used for controlling the first motor, a second motor used for driving the second control pump to work and a second controller used for controlling the second motor, the communication interface between the first controller and the second controller is electrically connected to form a connection mode, the first controller controls the first motor to work after the long fiber wood pulp mixing ratio and the quality are input on the central control host machine in the connection mode, meanwhile, the first controller sends an electric signal to the second controller and the second controller controls the second motor to operate according to the input long fiber wood pulp mixing ratio power based on the signal, so that the first controller operates as a main control unit and the second controller operates as a branch control unit of the first controller.
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host, the central control host transmits an electric signal to the first controller, a communication interface between the first controller and the second controller is electrically connected to form a connection mode, the first controller controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host under the connection mode, meanwhile, the first controller sends the electric signal to the second controller, the second controller controls the second motor to operate by inputting the mixed proportion power of the long fiber wood pulp based on the signal, the first control pump and the second control pump operate to lead the long fiber wood pulp and the short fiber wood pulp out of the long fiber beater and the short fiber beater, so that the required content of the long fiber wood pulp is set to be 80 wt% on the central control host, the short fiber wood pulp content is 19.2 wt% and is guided into the mixed pulp tank for mixed processing, the use is simple and convenient, therefore, the proportion of the proportion can be strictly followed to control and operate the second motor, the error influence caused by the operation of the machine is reduced, the first controller operates as a main control unit, the second controller operates as a branch control unit of the first controller, the stepped correlation control can reduce the error of proportion control, the accuracy of exporting the long fiber wood pulp and the short fiber wood pulp is improved, the accurate control is strictly carried out according to the set proportion and content, and the production quality is improved.
The invention is further configured to: and the mixed pulp tank is connected with a wet strength agent adding assembly which is electrically connected with the central control host and is used for automatically adding a wet strength agent into the mixed pulp tank.
Through adopting above-mentioned technical scheme, be connected with wet strength agent on mixing the thick liquid pond and add the subassembly for in the instruction automation according to well accuse host computer adds wet strength agent to mixing the thick liquid pond, for the mode that needs artifical batching to drop into again among the prior art, improved the precision of holistic production efficiency and ratio greatly, improved the actual production quality of facial tissue.
The invention is further configured to: the first pipe and/or the second pipe are provided with a flow meter which is used for calculating the total flow of the passing long fiber wood pulp and/or short fiber wood pulp and feeding back the total flow to the central control host, the flow meter is electrically connected with the central control host, and the central control host calculates the equivalent weight of dialdehyde starch and chitosan based on the actual introduced numerical value according to the addition proportion of the wet strength agent and feeds back the equivalent weight to the wet strength agent addition component to correspondingly add the actually required wet strength agent amount.
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host, the central control host transmits an electric signal to the first controller, a communication interface between the first controller and the second controller is electrically connected to form a connection mode, the first controller controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host under the connection mode, meanwhile, the first controller sends the electric signal to the second controller, the second controller controls the second motor to operate by inputting the mixed proportion power of the long fiber wood pulp based on the signal, the first control pump and the second control pump operate to lead the long fiber wood pulp and the short fiber wood pulp out of the long fiber beater and the short fiber beater, so that the required content of the long fiber wood pulp is set to be 80 wt% on the central control host, the short-fiber wood pulp content is 19.2 wt% and is led into the mixed pulp tank for mixing processing, the flowmeter arranged on the first pipe and/or the second pipe feeds back the total flow of the long-fiber wood pulp and/or the short-fiber wood pulp actually led into the mixed pulp tank to the central control host, the central control host calculates the total amount of the wet strength agent with the content of 0.8 wt% actually needed to be led into the mixed pulp tank according to the set needed long-fiber wood pulp proportion and the actually led total flow, the central control host calculates the equivalent weight of dialdehyde starch and chitosan according to the adding proportion of the wet strength agent based on the actually led-in numerical value, and then feeds back the equivalent weight to the wet strength agent adding component to add the wet strength agent amount corresponding to the actual need so as to match and obtain the facial tissue with the needed long-fiber wood pulp content and proportion set on the central control host, thereby reducing errors and improving the production accuracy, the production quality is greatly improved.
The invention is further configured to: the wet strength agent adding assembly comprises a temporary storage box, a first storage tank and a second storage tank, wherein the temporary storage box is used for temporarily storing dialdehyde starch and chitosan, the temporary storage box is internally provided with a first chamber and a second chamber, the first chamber and the second chamber are communicated with each other through a communicating pipe, the first chamber is connected with the first storage tank through a first connecting pipe, the first connecting pipe is provided with a first metering pump electrically connected with the central control host, the second chamber is communicated with the second storage tank through a second connecting pipe, the second connecting pipe is provided with a second metering pump electrically connected with the central control host, the first chamber is internally provided with a first electromagnetic valve which is electrically connected with the central control host and used for blocking and closing the first connecting pipe to control the feeding amount of the dialdehyde starch, the second chamber is internally provided with a second electromagnetic valve which is electrically connected with the central control host and used for blocking and closing the second connecting pipe to control the feeding amount of the chitosan, the second chamber is communicated with the mixed pulp tank through a return pipe.
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host, the central control host transmits an electric signal to the first controller, a communication interface between the first controller and the second controller is electrically connected to form a connection mode, the first controller controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host under the connection mode, meanwhile, the first controller sends the electric signal to the second controller, the second controller controls the second motor to operate by inputting the mixed proportion power of the long fiber wood pulp based on the signal, the first control pump and the second control pump operate to lead the long fiber wood pulp and the short fiber wood pulp out of the long fiber beater and the short fiber beater, so that the required content of the long fiber wood pulp is set to be 80 wt% on the central control host, the short-fiber wood pulp content is 19.2 wt% and is led into the mixed pulp tank for mixing processing, the flow meter arranged on the first pipe and/or the second pipe feeds back the total flow of the long-fiber wood pulp and/or the short-fiber wood pulp actually led into the mixed pulp tank to the central control host, the central control host calculates the total amount of the wet strength agent with the content of 0.8 wt% actually required to be led into the mixed pulp tank according to the set required long-fiber wood pulp ratio and the actually led total flow, the central control host calculates the equivalent weight of dialdehyde starch and chitosan according to the adding proportion of the wet strength agent based on the actually led-in numerical value, then the equivalent weight of dialdehyde starch and chitosan is fed back to the first metering pump and the second metering pump which are electrically connected with the central control host, the first metering pump and the second metering pump are opened and work according to the same power, and then the central control host transmits an electric signal to the first electromagnetic valve, open corresponding time confession dialdehyde starch and chitosan equivalent and let in by first solenoid valve and second solenoid valve, then first solenoid valve and second solenoid valve are opened corresponding time after and are closed, well accuse host computer transmission signal of telecommunication to first measuring pump and second measuring pump afterwards, first measuring pump and second measuring pump are closed, dialdehyde starch and chitosan that let in first cavity and second cavity are led into to mix in the thick liquid pond through the back flow, supply to join in marriage and obtain the facial tissue of setting for required long fiber wood pulp content and proportion on well accuse host computer, the error has been reduced, the precision of production has been improved, production quality promotes by a wide margin.
The invention is further configured to: the wet strength agent in the first cavity and the second cavity is washed and the control backflow assembly flows back to the mixed pulp pond is connected to the mixed pulp pond, the control backflow assembly comprises a control backflow pipe and a control backflow pump arranged on the control backflow pipe, the control backflow pump is electrically connected with a central control host, one end of the control backflow pipe is connected with the mixed pulp pond, and the other end of the control backflow pipe is communicated with the first cavity.
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host, the central control host transmits an electric signal to the first controller, a communication interface between the first controller and the second controller is electrically connected to form a connection mode, the first controller controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host under the connection mode, meanwhile, the first controller sends the electric signal to the second controller, the second controller controls the second motor to operate by inputting the mixed proportion power of the long fiber wood pulp based on the signal, the first control pump and the second control pump operate to lead the long fiber wood pulp and the short fiber wood pulp out of the long fiber beater and the short fiber beater, so that the required content of the long fiber wood pulp is set to be 80 wt% on the central control host, the short-fiber wood pulp content is 19.2 wt% and is led into the mixed pulp tank for mixing processing, the flow meter arranged on the first pipe and/or the second pipe feeds back the total flow of the long-fiber wood pulp and/or the short-fiber wood pulp actually led into the mixed pulp tank to the central control host, the central control host calculates the total amount of the wet strength agent with the content of 0.8 wt% actually required to be led into the mixed pulp tank according to the set required long-fiber wood pulp ratio and the actually led total flow, the central control host calculates the equivalent weight of dialdehyde starch and chitosan according to the adding proportion of the wet strength agent based on the actually led-in numerical value, then the equivalent weight of dialdehyde starch and chitosan is fed back to the first metering pump and the second metering pump which are electrically connected with the central control host, the first metering pump and the second metering pump are opened and work according to the same power, and then the central control host transmits an electric signal to the first electromagnetic valve, the first electromagnetic valve and the second electromagnetic valve are opened for corresponding time for introducing dialdehyde starch and chitosan equivalent, then the first electromagnetic valve and the second electromagnetic valve are opened for corresponding time and then closed, then the central control host transmits an electric signal to the first metering pump and the second metering pump, the first metering pump and the second metering pump are closed, the central control host transmits an electric signal to the control reflux pump which is electrically connected with the central control host, the control reflux pump is controlled to operate, mixed slurry in the mixed slurry tank with one end connected with the central control host is extracted through the control reflux pipe, the mixed slurry is introduced into the first cavity and the second cavity through the control reflux pipe, the dialdehyde starch and chitosan are driven by flushing to be introduced into the mixed slurry tank through the reflux pipe, then the central control host transmits an electric signal to close the control reflux pump, the mixed slurry extracted from the mixed slurry tank is flushed into the first cavity and the second cavity, and therefore all the wet strength agents in the first cavity and the second cavity are flushed into the mixed slurry tank, compared with the prior art, the mixing precision is guaranteed, errors are reduced, the production precision is improved, and the production quality is greatly improved.
The invention also discloses a use method of the production equipment suitable for the production process of the soft and smooth facial tissue, which is characterized by comprising the following steps:
1) and primary investment: after the required long fiber wood pulp content and proportion are set on the central control host machine to be 80 wt% and the short fiber wood pulp content to be 19.2 wt%, the central control host transmits an electric signal to the first controller, a communication interface between the first controller and the second controller is electrically connected to form a connection mode, the first controller controls the first motor to work after the long fiber wood pulp mixing proportion and the quality are input on the central control host in the connection mode, meanwhile, the first controller sends an electric signal to the second controller, the second controller controls the second motor to operate according to the power of the long fiber wood pulp mixing ratio based on the signal, the first control pump and the second control pump operate to lead out the long fiber wood pulp and the short fiber wood pulp from the long fiber beating machine and the short fiber beating machine, and the long fiber wood pulp and the short fiber wood pulp are led into the mixed pulp tank to be mixed and processed according to the proportion that the required long fiber wood pulp content is 80 wt% and the short fiber wood pulp content is 19.2 wt% set on the central control host;
2) wet strength agent calculation: the method comprises the following steps that a flowmeter arranged on a first pipe and/or a second pipe feeds back the total flow of long fiber wood pulp and/or short fiber wood pulp actually introduced into a mixed pulp tank to a central control host, the central control host calculates the total amount of a wet strength agent with the content of 0.8 wt% actually required to be introduced into the mixed pulp tank according to the set required long fiber wood pulp proportion and the actually introduced total flow, and the central control host calculates the equivalent weight of dialdehyde starch and chitosan according to the wet strength agent addition proportion based on the actually introduced value;
3) and wet strength agent input: then, feeding back to a first metering pump and a second metering pump which are electrically connected with a central control host, opening the first metering pump and the second metering pump and working according to the same power, then transmitting an electric signal to a first electromagnetic valve and a second electromagnetic valve by the central control host, opening the first electromagnetic valve and the second electromagnetic valve for corresponding time for introducing equivalent dialdehyde starch and chitosan, then opening the first electromagnetic valve and the second electromagnetic valve for corresponding time and then closing the first electromagnetic valve and the second electromagnetic valve, then transmitting an electric signal to the first metering pump and the second metering pump by the central control host, and closing the first metering pump and the second metering pump;
4) and mixing slurry gathering: the central control host transmits an electric signal to the control reflux pump which is electrically connected with the central control host, the control reflux pump operates, the mixed slurry in the mixed slurry tank connected with one end is extracted through the control reflux pipe, the mixed slurry is introduced into the first cavity and the second cavity through the control reflux pipe, the dialdehyde starch and the chitosan are driven by scouring to be led into the mixed slurry tank through the reflux pipe, and then the central control host transmits the electric signal to close the control reflux pump.
By adopting the technical scheme, the first controller operates as a main control unit and the second controller operates as a branch control unit of the first controller, the stepped relevance control can reduce errors of proportion control, improve the accuracy of deriving the long fiber wood pulp and the short fiber wood pulp, accurately control according to the set proportion and content strictly, improve the production quality, the central control host calculates the total amount of the wet strength agent with the content of 0.8 wt% which is actually required to be introduced into the mixed pulp tank according to the set required long fiber wood pulp proportion and the actually introduced total flow, the central control host calculates the equivalent weight of dialdehyde starch and chitosan according to the wet strength agent adding proportion based on the actually introduced numerical value, then, the equivalent weight is fed back to the first metering pump and the second metering pump which are electrically connected with the central control host, the facial tissue with the required long fiber wood pulp content and proportion set on the central control host is obtained by the supply and distribution ratio, the error is reduced, the precision of production is improved, and production quality promotes by a wide margin, utilizes the mixed thick liquid that extracts from mixing the thick liquid pond to wash into first cavity and second cavity to wash into mixing the thick liquid pond with whole wet strength agent in first cavity and the second cavity, in order to guarantee the precision of mixing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a wet strength agent adding assembly according to an embodiment of the present invention.
In the figure: the dashed lines represent electrical connections and the solid lines represent physical connections.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, the present invention discloses a process for producing soft and smooth facial tissue, which comprises the following steps:
s1, preparing twenty-five parts of bamboo fibers and fifty parts of softwood fibers into long fiber wood pulp, and preparing twenty-five parts of bagasse fibers, fifty parts of hardwood fibers and twenty-five parts of straw fibers into short fiber wood pulp;
s2, adding water into a long fiber wood pulp pulper to adjust the wood pulp concentration to 4.5-5.5 wt%, after the wood pulp is disintegrated for 10-12 minutes, defibering the obtained pulped material by a defibering machine, pulping by a beater, cutting and devillicate brooming the fibers to obtain the knocked long fiber wood pulp, wherein the beating degree is 30-35 SR, and the length of the long fiber of the knocked long fiber wood pulp is controlled to be 2-2.5 mm;
s3, adding water into a short fiber wood pulp pulper to adjust the wood pulp concentration to 6.5-7.5 wt%, after the wood pulp is disintegrated for 10-18 minutes, defibering the obtained pulped matter by a defibering machine, pulping by a beater, cutting and fibrillation the fibers to obtain long fiber wood pulp after beating, wherein the beating degree is 30-35 DEG SR, and the length of the long fiber of the short fiber wood pulp after beating is controlled to be less than 1 mm;
s4, pumping the long fiber wood pulp and the short fiber wood pulp into a mixed pulp tank according to the weight, adding a certain amount of wet strength agent to obtain mixed pulp, wherein the mixed pulp comprises the following components in percentage by weight: the content of long fiber wood pulp is 79-81 wt%, the content of short fiber wood pulp is 18.2-20.2 wt%, the content of wet strength agent is 0.8 wt%, the wet strength agent is dialdehyde starch and chitosan, the proportion is 1:2, and the mixed pulp is adjusted to be pulp with the concentration of 2.9-3.1% by water;
s5, diluting the mixture by a fan pump to a concentration of 0.6-0.8 wt%, entering a paper machine, and forming, squeezing and drying to obtain the product.
By adopting the technical scheme, the proportion and the length of the long fibers and the short fibers are adjusted, the facial tissue can have high wet strength only under the condition of 0.8 wt% of wet strength agent, the content of the long fiber wood pulp is 79-81 wt%, the content of the short fiber wood pulp is 18.2-20.2 wt%, the wet strength agent is dialdehyde starch and chitosan, the proportion is 1:2, the mixed pulp is adjusted into finished pulp with the concentration of 2.9-3.1% by using water under the condition of not using a softening agent and other additives, and the prepared facial tissue has high soft smoothness, and the wet strength agent is dialdehyde starch and chitosan, so that the facial tissue has high wet strength, is easy to degrade and is green and environment-friendly.
The invention also discloses production equipment suitable for the production process of the soft and smooth facial tissue, which comprises a long fiber processing production line, a short fiber pulper 4, a short fiber defibering machine 5 and a short fiber pulping machine 6, wherein the long fiber processing production line is used for processing long fiber wood pulp and is sequentially connected with the long fiber pulper 1, the long fiber defibering machine 2 and the long fiber pulping machine 3, the long fiber beater 3 and the short fiber beater 6 are respectively connected with a mixed pulp pond 9 through a first pipe 7 and a second pipe 8, the first pipe 7 and the second pipe 8 are respectively provided with a first control pump 11 and a second control pump 12, in the embodiment of the present invention, a proportional mixing control assembly for controlling the first control pump 11 and the second control pump 12 to pump the long fiber wood pulp and the short fiber wood pulp in a selected mixing ratio is disposed between the first control pump 11 and the second control pump 12.
By adopting the technical scheme, the proportion mixing control assembly for controlling the first control pump 11 and the second control pump 12 to pump the long fiber wood pulp and the short fiber wood pulp according to the selected mixing proportion is arranged between the first control pump 11 and the second control pump 12, the long fiber wood pulp and the short fiber wood pulp are guided out from the long fiber beater 3 and the short fiber beater 6 by the proportion mixing control assembly, and are guided into the mixing pulp tank 9 according to the proportion set during production to be mixed and processed, and the use is simple and convenient.
In the embodiment of the present invention, the system further comprises a central control host 10 for inputting the mixing ratio and quality of the long fiber wood pulp, the ratio mixing control assembly comprises a first motor for driving a first control pump 11 to operate, a first controller 13 for controlling the first motor, a second motor for driving a second control pump 12 to operate, and a second controller 14 for controlling the second motor, a communication interface between the first controller 13 and the second controller 14 is electrically connected to form a connection mode, in the connection mode, after the mixing ratio and quality of the long fiber wood pulp are input to the central control host 10, the first controller 13 controls the first motor to operate, and simultaneously the first controller 13 sends an electric signal to the second controller 14 and the second controller 14 controls the second motor to operate by inputting the power of the mixing ratio based on the signal, so that the first controller 13 operates as a unit and the second controller 14 operates as a branch control unit of the first controller 13 .
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host 10, the central control host 10 transmits an electric signal to the first controller 13, a communication interface between the first controller 13 and the second controller 14 is electrically connected to form a connection mode, the first controller 13 controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host 10 under the connection mode, meanwhile, the first controller 13 sends the electric signal to the second controller 14, the second controller 14 controls the second motor to work by inputting the power of the mixing proportion of the long fiber wood pulp based on the signal, the first control pump 11 and the second control pump 12 work to lead out the long fiber wood pulp and the short fiber wood pulp from the long fiber beater 3 and the short fiber beater 6, the long fiber wood pulp content required by the central control host 10 is 80 wt%, the short fiber wood pulp content is 19.2 wt%, and the long fiber wood pulp content is led into the mixed pulp tank 9 for mixing processing, the use is simple and convenient, therefore, the proportion can be strictly followed to control and operate the second motor, the error influence caused by the operation of the machine is reduced, the first controller 13 operates as a main control unit, and the second controller 14 operates as a branch control unit of the first controller 13, the stepped relevance control can reduce the error of proportion control, the accuracy of leading out the long fiber wood pulp and the short fiber wood pulp is improved, the accurate control is strictly carried out according to the set proportion and content, and the production quality is improved.
In the embodiment of the invention, the mixed pulp tank 9 is connected with a wet strength agent adding component which is electrically connected with the central control host machine 10 and is used for automatically adding the wet strength agent into the mixed pulp tank 9.
Through adopting above-mentioned technical scheme, be connected with wet strength agent on mixing thick liquid pond 9 and add the subassembly for in the instruction automation according to well accuse host computer 10 adds wet strength agent to mixing thick liquid pond 9, for the mode that needs artifical batching to drop into again among the prior art, improved holistic production efficiency and the precision of ratio greatly, improved the actual production quality of facial tissue.
In the embodiment of the present invention, the first pipe 7 and/or the second pipe 8 is provided with a flow meter 101 for calculating the total flow rate of the long fiber wood pulp and/or the short fiber wood pulp passing through and feeding back to the central control host 10, the flow meter 101 is electrically connected to the central control host 10, and the central control host 10 calculates the equivalent weight of dialdehyde starch and chitosan according to the wet strength agent addition ratio based on the actually introduced value and feeds back the equivalent weight to the wet strength agent addition component to correspondingly add the actually required wet strength agent amount.
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host 10, the central control host 10 transmits an electric signal to the first controller 13, a communication interface between the first controller 13 and the second controller 14 is electrically connected to form a connection mode, the first controller 13 controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host 10 under the connection mode, meanwhile, the first controller 13 sends the electric signal to the second controller 14, the second controller 14 controls the second motor to work by inputting the power of the mixing proportion of the long fiber wood pulp based on the signal, the first control pump 11 and the second control pump 12 work to lead out the long fiber wood pulp and the short fiber wood pulp from the long fiber beater 3 and the short fiber beater 6, leading the pulp into a mixed pulp tank 9 for mixing processing according to the proportion that the required content of the long fiber wood pulp is 80 wt% and the content of the short fiber wood pulp is 19.2 wt% set on a central control host machine 10, feeding back the total flow of the long fiber wood pulp and/or the short fiber wood pulp actually fed into the mixed pulp tank 9 to the central control host machine 10 by a flow meter 101 arranged on a first pipe 7 and/or a second pipe 8, calculating the total amount of the wet strength agent with the content of 0.8 wt% actually required to be fed into the mixed pulp tank 9 by the central control host machine 10 according to the set required proportion of the long fiber wood pulp and the actually fed total flow, calculating the equivalent weight of dialdehyde starch and chitosan by the central control host machine 10 according to the adding proportion of the wet strength agent based on the actually fed numerical value, feeding back to a wet strength agent adding component to add the wet strength agent corresponding to the actually required amount to match the facial tissue with the content and the proportion set on the central control host machine 10, the error is reduced, the production precision is improved, and the production quality is greatly improved.
In the embodiment of the present invention, the wet strength agent adding assembly includes a temporary storage tank 20, a first storage tank 21 and a second storage tank 22 for storing dialdehyde starch and chitosan, the temporary storage tank 20 is internally provided with a first chamber 23 and a second chamber 24, the first chamber 23 and the second chamber 24 are communicated with each other through a communication pipe, the first chamber 23 is connected with the first storage tank 21 through a first connection pipe 25, the first connection pipe 25 is provided with a first metering pump 27 electrically connected with the central control host computer 10, the second chamber 24 is communicated with the second storage tank 22 through a second connection pipe 26, the second connection pipe 26 is provided with a second metering pump 28 electrically connected with the central control host computer 10, the first chamber 23 is provided with a first electromagnetic valve 29 electrically connected with the central control host computer 10 for blocking the first connection pipe 25 to control the feeding amount of dialdehyde starch, a second electromagnetic valve 30 which is electrically connected with the central control host 10 and used for blocking and closing the second connecting pipe 26 to control the input amount of the chitosan is arranged in the second chamber 24, and the second chamber 24 is communicated with the mixed pulp tank 9 through a return pipe 31.
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host 10, the central control host 10 transmits an electric signal to the first controller 13, a communication interface between the first controller 13 and the second controller 14 is electrically connected to form a connection mode, the first controller 13 controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host 10 under the connection mode, meanwhile, the first controller 13 sends the electric signal to the second controller 14, the second controller 14 controls the second motor to work by inputting the power of the mixing proportion of the long fiber wood pulp based on the signal, the first control pump 11 and the second control pump 12 work to lead out the long fiber wood pulp and the short fiber wood pulp from the long fiber beater 3 and the short fiber beater 6, leading the pulp into a mixed pulp tank 9 for mixing processing according to the proportion that the required content of the long fiber wood pulp is set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on a central control host machine 10, feeding back the total flow of the long fiber wood pulp and/or the short fiber wood pulp which is actually led into the mixed pulp tank 9 to the central control host machine 10 by a flow meter 101 arranged on a first pipe 7 and/or a second pipe 8, calculating the total amount of the wet strength agent which is actually required to be led into the mixed pulp tank 9 and has the content of 0.8 wt% by the central control host machine 10 according to the set required proportion of the long fiber wood pulp and the actual led total flow, calculating the equivalent weight of dialdehyde starch and chitosan by the central control host machine 10 according to the adding proportion of the wet strength agent based on the actually led numerical value, then feeding back to a first metering pump 27 and a second metering pump 28 which are electrically connected with the central control host machine 10, and working according to the same power, then the central control host 10 transmits an electric signal to the first electromagnetic valve 29 and the second electromagnetic valve 30, the first electromagnetic valve 29 and the second electromagnetic valve 30 are opened for corresponding time for introducing the equivalent of dialdehyde starch and chitosan, then the first electromagnetic valve 29 and the second electromagnetic valve 30 are opened for corresponding time and then closed, then the central control host 10 transmits an electric signal to the first metering pump 27 and the second metering pump 28, the first metering pump 27 and the second metering pump 28 are closed, the dialdehyde starch and the chitosan introduced into the first chamber 23 and the second chamber 24 are introduced into the mixed pulp tank 9 through the return pipe 31, the supply and proportioning ratio obtains the tissue with the required long fiber wood pulp content and proportion set on the central control host 10, the error is reduced, the production accuracy is improved, and the production quality is greatly improved.
In the specific embodiment of the present invention, the mixed slurry tank 9 is connected with a control backflow component for guiding the mixed slurry, flushing the wet strength agent in the first chamber 23 and the second chamber 24, and returning the wet strength agent to the mixed slurry tank 9, the control backflow component includes a control backflow pipe 32 and a control backflow pump 33 arranged on the control backflow pipe 32, the control backflow pump 33 is electrically connected with the central control host 10, one end of the control backflow pipe 32 is connected with the mixed slurry tank 9, and the other end of the control backflow pipe is communicated with the first chamber 23.
By adopting the technical scheme, when the production of the facial tissue is carried out, after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host 10, the central control host 10 transmits an electric signal to the first controller 13, a communication interface between the first controller 13 and the second controller 14 is electrically connected to form a connection mode, the first controller 13 controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host 10 under the connection mode, meanwhile, the first controller 13 sends the electric signal to the second controller 14, the second controller 14 controls the second motor to work by inputting the power of the mixing proportion of the long fiber wood pulp based on the signal, the first control pump 11 and the second control pump 12 work to lead out the long fiber wood pulp and the short fiber wood pulp from the long fiber beater 3 and the short fiber beater 6, leading the pulp into a mixed pulp tank 9 for mixing processing according to the proportion that the required content of the long fiber wood pulp is set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on a central control host machine 10, feeding back the total flow of the long fiber wood pulp and/or the short fiber wood pulp which is actually led into the mixed pulp tank 9 to the central control host machine 10 by a flow meter 101 arranged on a first pipe 7 and/or a second pipe 8, calculating the total amount of the wet strength agent which is actually required to be led into the mixed pulp tank 9 and has the content of 0.8 wt% by the central control host machine 10 according to the set required proportion of the long fiber wood pulp and the actual led total flow, calculating the equivalent weight of dialdehyde starch and chitosan by the central control host machine 10 according to the adding proportion of the wet strength agent based on the actually led numerical value, then feeding back to a first metering pump 27 and a second metering pump 28 which are electrically connected with the central control host machine 10, and working according to the same power, then the central control host 10 transmits an electric signal to the first electromagnetic valve 29 and the second electromagnetic valve 30, the first electromagnetic valve 29 and the second electromagnetic valve 30 are opened for corresponding time for inputting the equivalent of the dialdehyde starch and the chitosan, then the first electromagnetic valve 29 and the second electromagnetic valve 30 are opened for corresponding time and then are closed, then the central control host 10 transmits an electric signal to the first metering pump 27 and the second metering pump 28, the first metering pump 27 and the second metering pump 28 are closed, the central control host 10 transmits an electric signal to the control reflux pump 33 which is electrically connected with the central control host 10, the control reflux pump 33 operates, mixed slurry inside the mixed slurry tank 9 with one end connected is extracted through the control reflux pipe 32, the mixed slurry is input into the first chamber 23 and the second chamber 24 through the control reflux pipe 32, the flushing drives the dialdehyde starch and the chitosan to be input into the mixed slurry tank 9 through the reflux pipe 31, then the central control host 10 transmits an electric signal to close the control reflux pump, utilize the mixed thick liquid that extracts from mixing thick liquid pond 9 to wash into first cavity 23 and second cavity 24 to wash into mixing thick liquid pond 9 with whole wet strength agent in first cavity 23 and the second cavity 24, in order to guarantee the precision of mixing, for prior art, reduced the error, improved the precision of production, production quality promotes by a wide margin.
The invention also discloses a use method of the production equipment suitable for the production process of the soft and smooth facial tissue, and the method comprises the following steps:
1) and primary investment: after the required content and proportion of the long fiber wood pulp are set to 80 wt% and the content of the short fiber wood pulp is set to 19.2 wt% on the central control host 10, the central control host 10 transmits an electric signal to the first controller 13, a communication interface between the first controller 13 and the second controller 14 is electrically connected to form a connection mode, the first controller 13 controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host 10 under the connection mode, meanwhile, the first controller 13 sends the electric signal to the second controller 14, the second controller 14 controls the second motor to work by inputting the power of the mixing proportion of the wood pulp and the long fiber based on the signal, the first control pump 11 and the second control pump 12 work to derive the long fiber wood pulp and the short fiber wood pulp from the long fiber beater 3 and the short fiber beater 6, so that the required content of the long fiber wood pulp is set to 80 wt% on the central control host 10, the short fiber wood pulp content is 19.2 wt% and is led into the mixed pulp tank 9 for mixing processing;
2) wet strength agent calculation: the total flow of the long fiber wood pulp and/or the short fiber wood pulp which are actually led into the mixed pulp tank 9 is fed back to the central control host machine 10 by a flow meter 101 arranged on the first pipe 7 and/or the second pipe 8, the total amount of the wet strength agent with the content of 0.8 wt% which is actually required to be led into the mixed pulp tank 9 is calculated by the central control host machine 10 according to the set required long fiber wood pulp proportion and the actual led total flow, and the equivalent weight of the dialdehyde starch and the chitosan is calculated by the central control host machine 10 according to the actual led numerical value and the wet strength agent adding proportion;
3) and wet strength agent input: then, feeding back to a first metering pump 27 and a second metering pump 28 which are electrically connected with the central control host 10, wherein the first metering pump 27 and the second metering pump 28 are opened and work according to the same power, then the central control host 10 transmits an electric signal to a first electromagnetic valve 29 and a second electromagnetic valve 30, the first electromagnetic valve 29 and the second electromagnetic valve 30 are opened for corresponding time for introducing dialdehyde starch and chitosan equivalent, then the first electromagnetic valve 29 and the second electromagnetic valve 30 are opened for corresponding time and then closed, then the central control host 10 transmits an electric signal to the first metering pump 27 and the second metering pump 28, and the first metering pump 27 and the second metering pump 28 are closed;
4) and mixing slurry gathering: the central control host 10 transmits an electric signal to the control reflux pump 33 which is electrically connected with the central control host, the control reflux pump 33 operates, mixed slurry in the mixed slurry tank 9 with one end connected is extracted through the control reflux pipe 32, the mixed slurry is introduced into the first cavity 23 and the second cavity 24 through the control reflux pipe 32, the dialdehyde starch and the chitosan are driven by flushing to be introduced into the mixed slurry tank 9 through the reflux pipe 31, and then the central control host 10 transmits an electric signal to close the control reflux pump 33.
By adopting the technical scheme, the first controller 13 operates as a main control unit and the second controller 14 operates as a branch control unit of the first controller 13, the stepped correlation control can reduce the error of proportion control, improve the accuracy of deriving the long fiber wood pulp and the short fiber wood pulp, accurately control according to the set proportion and content strictly, improve the production quality, the central control host 10 calculates the total amount of the wet strength agent with the content of 0.8 wt% which is actually required to be fed into the mixed pulp tank 9 according to the set required long fiber wood pulp proportion and the actually fed total flow, the central control host 10 calculates the equivalent weight of dialdehyde starch and chitosan according to the adding proportion of the wet strength agent based on the actually fed numerical value, then, the equivalent weight is fed back to the first metering pump 27 and the second metering pump 28 which are electrically connected with the central control host 10, and the metering pump is used for proportioning to obtain the facial tissue with the required long fiber wood pulp content and proportion set on the central control host 10, the error is reduced, the precision of production is improved, and production quality promotes by a wide margin, utilizes the mixed thick liquid that extracts from mixing thick liquid pond 9 to wash into first cavity 23 and second cavity 24 to wash into mixing thick liquid pond 9 with whole wet strength agent in first cavity 23 and the second cavity 24, in order to guarantee the precision of mixing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The production process of the soft and smooth facial tissue is characterized by comprising the following steps:
s1, preparing twenty-five parts of bamboo fibers and fifty parts of softwood fibers into long fiber wood pulp, and preparing twenty-five parts of bagasse fibers, fifty parts of hardwood fibers and twenty-five parts of straw fibers into short fiber wood pulp;
s2, adding water into a long fiber wood pulp pulper to adjust the wood pulp concentration to 4.5-5.5 wt%, after the wood pulp is disintegrated for 10-12 minutes, defibering the obtained pulped material by a defibering machine, pulping by a beater, cutting and devillicate brooming the fibers to obtain the knocked long fiber wood pulp, wherein the beating degree is 30-35 SR, and the length of the long fiber of the knocked long fiber wood pulp is controlled to be 2-2.5 mm;
s3, adding water into a short fiber wood pulp pulper to adjust the wood pulp concentration to 6.5-7.5 wt%, after the wood pulp is disintegrated for 10-18 minutes, defibering the obtained pulped matter by a defibering machine, pulping by a beater, cutting and fibrillation the fibers to obtain long fiber wood pulp after beating, wherein the beating degree is 30-35 DEG SR, and the length of the long fiber of the short fiber wood pulp after beating is controlled to be less than 1 mm;
s4, pumping the long fiber wood pulp and the short fiber wood pulp into a mixed pulp tank according to the weight, adding a certain amount of wet strength agent to obtain mixed pulp, wherein the mixed pulp comprises the following components in percentage by weight: the content of long fiber wood pulp is 79-81 wt%, the content of short fiber wood pulp is 18.2-20.2 wt%, the content of wet strength agent is 0.8 wt%, the wet strength agent is dialdehyde starch and chitosan, the proportion is 1:2, and the mixed pulp is adjusted to be pulp with the concentration of 2.9-3.1% by water;
s5, diluting the mixture by a fan pump to a concentration of 0.6-0.8 wt%, entering a paper machine, and forming, squeezing and drying to obtain the product.
2. The utility model provides a be suitable for production facility of glossy paper production technology of above-mentioned claim 1, includes the long fiber processing lines that is used for processing long fiber wood pulp and is connected gradually by long fiber pulper (1), long fiber fluffer (2) and long fiber beater (3) and is used for processing short fiber wood pulp short fiber pulper (4), short fiber fluffer (5) and short fiber beater (6), long fiber beater (3) and short fiber beater (6) are connected with mixed thick liquid pond (9) through first pipe (7) and second pipe (8) respectively, be provided with first control pump (11) and second control pump (12) on first pipe (7) and second pipe (8) respectively, its characterized in that: and a proportional mixing control assembly for controlling the first control pump (11) and the second control pump (12) to pump the long fiber wood pulp and the short fiber wood pulp according to a selected mixing proportion is arranged between the first control pump (11) and the second control pump (12).
3. The production equipment for the production process of the soft and smooth facial tissue according to the claim 2, characterized in that: still including the well accuse host computer (10) that is used for inputing long fiber wood pulp mixing ratio and quality, proportion hybrid control subassembly is including being used for driving the first motor of first control pump (11) work, being used for controlling first controller (13) of first motor, being used for driving the second motor of second control pump (12) work and being used for controlling second controller (14) of second motor, communication interface electricity between first controller (13) and the second controller (14) is connected and is formed the connected mode, and first controller (13) control first motor work after inputing long fiber wood pulp mixing ratio and quality on well accuse host computer (10) under the connected mode, and first controller (13) send electric signal to second controller (14) and second controller (14) are based on this signal control second motor and are in order to input long fiber wood pulp mixing ratio power operation simultaneously, the first controller (13) is operated as a main control unit and the second controller (14) is operated as a branch control unit of the first controller (13).
4. The production equipment for the production process of the soft and smooth facial tissue according to the claim 3, characterized in that: and the mixed pulp tank (9) is connected with a wet strength agent adding component which is electrically connected with the central control host (10) and is used for automatically adding a wet strength agent into the mixed pulp tank (9).
5. The production equipment for the production process of the soft and smooth facial tissue according to claim 4, characterized in that: be provided with on first pipe (7) and/or second pipe (8) and be used for calculating the long fiber wood pulp and/or the short fiber wood pulp total flow that pass through and feed back to flowmeter (101) of central control host computer (10), flowmeter (101) are connected with central control host computer (10) electricity, and central control host computer (10) adds the numerical value according to the wet strength agent based on this actual numerical value that lets in and calculates dialdehyde starch and chitosan equivalent and feeds back to the wet strength agent and adds the subassembly and correspond the wet strength agent amount that adds actually required.
6. The production equipment for the production process of the soft and smooth facial tissue according to claim 5, characterized in that: the wet strength agent adding assembly comprises a temporary storage box (20) used for temporary storage, a first storage tank (21) and a second storage tank (22) used for storing dialdehyde starch and chitosan, a first chamber (23) and a second chamber (24) are arranged inside the temporary storage box (20), the first chamber (23) and the second chamber (24) are communicated with each other through a communicating pipe, the first chamber (23) is connected with the first storage tank (21) through a first connecting pipe (25), a first metering pump (27) electrically connected with the central control host (10) is arranged on the first connecting pipe (25), the second chamber (24) is communicated with the second storage tank (22) through a second connecting pipe (26), a second metering pump (28) electrically connected with the central control host (10) is arranged on the second connecting pipe (26), the first chamber (23) is internally provided with the central control host (10) and is electrically connected with the central control host (10) for blocking the first connecting pipe (25) to control the quantity of dialdehyde starch The second chamber (24) is internally provided with a second electromagnetic valve (30) which is electrically connected with the central control host (10) and used for blocking and closing a second connecting pipe (26) to control the chitosan inlet amount, and the second chamber (24) is communicated with the mixed pulp tank (9) through a return pipe (31).
7. The production equipment for the production process of the soft and smooth facial tissue according to claim 6, characterized in that: mix and be connected with on thick liquid pond (9) and be arranged in deriving the mixed thick liquid and wash wet strong agent and flow back to the control backward flow subassembly in mixing thick liquid pond (9) in first cavity (23) and second cavity (24), control backward flow subassembly is including control back flow (32) and control backwash pump (33) of setting on control back flow (32), control backward flow pump (33) are connected with well accuse host computer (10) electricity, control back flow (32) one end is connected with mixed thick liquid pond (9), and the other end communicates with first cavity (23).
8. A method of using the production equipment suitable for the process for producing soft glossy paper according to claim 7, characterized by comprising the steps of:
1) and primary investment: after the required content and proportion of the long fiber wood pulp are set to be 80 wt% and the content of the short fiber wood pulp is set to be 19.2 wt% on the central control host (10), the central control host (10) transmits an electric signal to the first controller (13), a communication interface between the first controller (13) and the second controller (14) is electrically connected to form a connection mode, the first controller (13) controls the first motor to work after the mixing proportion and quality of the long fiber wood pulp are input on the central control host (10) in the connection mode, meanwhile, the first controller (13) sends the electric signal to the second controller (14), the second controller (14) controls the second motor to work by inputting the power of the mixing proportion of the long fiber wood pulp based on the signal, the first control pump (11) and the second control pump (12) work, and the long fiber wood pulp and the short fiber wood pulp are led out from the long fiber beater (3) and the short fiber beater (6), leading the pulp into a mixed pulp tank (9) according to the proportion that the pulp content of long fiber wood pulp is 80 wt% and the pulp content of short fiber wood pulp is 19.2 wt% which are set on a central control host (10) for mixing processing;
2) wet strength agent calculation: the total flow of the long fiber wood pulp and/or the short fiber wood pulp which are actually led into the mixed pulp tank (9) is fed back to a central control host (10) by a flow meter (101) arranged on a first pipe (7) and/or a second pipe (8), the central control host (10) calculates the total amount of the wet strength agent which is actually needed to be led into the mixed pulp tank (9) and has the content of 0.8 wt% according to the set needed long fiber wood pulp proportion and the actually led total flow, and the central control host (10) calculates the equivalent of dialdehyde starch and chitosan according to the wet strength agent adding proportion based on the actually led numerical value;
3) and wet strength agent input: then, feeding back to a first metering pump (27) and a second metering pump (28) which are electrically connected with the central control host (10), wherein the first metering pump (27) and the second metering pump (28) are opened and work according to the same power, then the central control host (10) transmits an electric signal to a first electromagnetic valve (29) and a second electromagnetic valve (30), the first electromagnetic valve (29) and the second electromagnetic valve (30) are opened for corresponding time for introducing the dialdehyde starch and chitosan equivalent, then the first electromagnetic valve (29) and the second electromagnetic valve (30) are opened for corresponding time and then closed, then the central control host (10) transmits an electric signal to the first metering pump (27) and the second metering pump (28), and the first metering pump (27) and the second metering pump (28) are closed;
4) and mixing slurry gathering: the central control host (10) transmits an electric signal to the control reflux pump (33) which is electrically connected with the central control host, the control reflux pump (33) operates, mixed slurry in the mixed slurry tank (9) with one end connected is extracted through the control reflux pipe (32), the mixed slurry is introduced into the first chamber (23) and the second chamber (24) through the control reflux pipe (32), the dialdehyde starch and the chitosan are driven by flushing to be introduced into the mixed slurry tank (9) through the reflux pipe (31), and then the central control host (10) transmits an electric signal to close the control reflux pump (33).
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