CN106988153A - Environmentally friendly synthetic paper Special coating liquid and coating process and equipment - Google Patents
Environmentally friendly synthetic paper Special coating liquid and coating process and equipment Download PDFInfo
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- CN106988153A CN106988153A CN201710277099.3A CN201710277099A CN106988153A CN 106988153 A CN106988153 A CN 106988153A CN 201710277099 A CN201710277099 A CN 201710277099A CN 106988153 A CN106988153 A CN 106988153A
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- shower nozzle
- hot wind
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Classifications
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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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/54—Starch
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/56—Macromolecular organic compounds or oligomers thereof obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H19/60—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
- D21H19/64—Inorganic compounds
-
- 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
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
-
- 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
- D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
- D21H25/04—Physical treatment, e.g. heating, irradiating
- D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of environmentally friendly synthetic paper Special coating liquid and coating process and equipment, belong to environmentally friendly synthetic paper processing technique field, it is characterised in that coating fluid each component percentage by weight is：Starch 2 18%, water 20 50%, titanium dioxide 5 15%, natural plant gum 10 30%, plastic binder 10 30%；Coating process is sprayed using hot-blast pressure；Coating apparatus includes transmitting device, spray hot wind device, spray hot wind device includes the spray hot wind unit for the predetermined number being uniformly arranged along the synthetic paper direction of motion, spray hot wind unit includes hot blast gas pressure station and the shower nozzle along the predetermined number being uniformly arranged perpendicular to the synthetic paper direction of motion, shower nozzle is connected by connecting pipe with hot blast gas pressure station, and the shower nozzle is set to duck-beak type shower nozzle；Solve the decortication of prior art synthetic paper, it is scaling-off, smoothness, absorbency are poor, and the big technical problem of technological process length, inefficiency, equipment investment.
Description
Technical field
The present invention relates to environmentally friendly synthetic paper processing technique field, and in particular to environmentally friendly synthetic paper Special coating liquid and coating work
Skill and equipment.
Background technology
Environmentally friendly synthetic paper（Stone paper）It is using limestone mineral resource as main raw material(s)（Calcium carbonate content is 70-80%）,
Using high molecular polymer as auxiliary material（Content is 20-30%）, using the macromolecule interfacial principles of chemistry and it is macromolecule modified the characteristics of,
After being handled through special process, extruded using polymer, blowing process is made, with output is high, cost is low, that energy consumption is low is excellent
Point, without falling trees, conservation of nature is ecological, and process need not add the chemical raw materials such as strong acid, highly basic, bleaching agent, no
Waste discharge, waste residue and toxic gas, to optimizing the environment, protecting ecology is made that outstanding contributions, is to be intended to substitute tradition at present
A kind of new material of paper.
The production process of synthetic paper is first processed into synthetic paper body paper by raw material, and packaging, wall are applied to this body paper more
Paper, and paper product glossiness is low, printing effect is poor, its actual application and popularization is limited to very much, therefore generally require to carry out body paper
Coating waste water is to obtain good feel, glossiness, intensity, impressionability etc..
Insecure, easy appearance decortication, slag-off phenomenon, and paper are combined between prior art synthetic paper coating layer and body paper
Smoothness, absorbency are poor, limit the application of synthetic paper；In addition, existing common papermaking coating technique is frequently with blade coating, rolling
The methods such as painting, spraying, stoving process flow is longer, complex operation, and corresponding existing coating line the entire process have about tens of rice, equipment
Huge, floor space is larger, has had a strong impact on the ageing and unit area output capacity of processing, and high processing costs, and equipment is thrown
Money is larger.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of environmentally friendly special painting of synthetic paper in view of the shortcomings of the prior art
Cloth liquid and coating process and equipment, it is intended to solve prior art synthetic paper decortication, it is scaling-off, smoothness, absorbency are poor, and technique
The big technical problem of long flow path, inefficiency, equipment investment.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：Environmentally friendly synthetic paper Special coating liquid, it is characterised in that
Include the percentage by weight of following composition：
Starch 2-18%, water 20-50%, titanium dioxide 5-15%, natural plant gum 10-30%, plastic binder 10-30%；The natural plant gum is adopted
With glutinous rice glue, the composite parts of the plastic binder includes polyvinyl alcohol, water, titanate coupling agent.
Further, the polyvinyl alcohol, water, titanate coupling agent are with 1:3:0.1-2 part by weight mixing.
Using the coating process of the environmentally friendly synthetic paper Special coating liquid, it is characterised in that comprise the following steps：
a）The preparation of coating fluid：Coating fluid is made by the percentage by weight is well mixed in above-mentioned each composition；
b）Coating：Coating layer is made on synthetic paper body paper surface in coating liquid obtained by step a；
c）Forced air sprays：Apply forced air to painting layer surface；The forced air temperature is 80-100 DEG C, coating layer
Pressures are 0.1-0.4MPa, and the action time of single pressure spray hot wind is 0.1-2s, forced air jet-action number of times
For 15-25 times, the adjacent injection interval of forced air twice 0.1-2s.The forced air injection is on-line continuous work, adjacent
Realized by equipment operation function at the interval of forced air injection twice.
Further, the process for preparation of the coating fluid is as follows：
Starch is added in normal-temperature water and stirred, be then heated into it is thick, then thereto add titanium dioxide, natural plant gum and
Plastic binder, electric stirring is to uniformly producing coating fluid.
Further, the hot blast acts on the straight line that painting layer surface shows as being linked to be by some application points.
The equipment that the coating process is used, it is characterised in that including transmitting device, spray hot wind device, the hot blast
Injection apparatus includes the spray hot wind unit for the predetermined number being uniformly arranged along the synthetic paper direction of motion, the spray hot wind unit
Including hot blast gas pressure station and the shower nozzle along the predetermined number being uniformly arranged perpendicular to the synthetic paper direction of motion, shower nozzle passes through connection
Pipeline is connected with hot blast gas pressure station, and the shower nozzle is set to duck-beak type shower nozzle, and shower nozzle port is towards synthetic paper, and perpendicular to synthesis
The direction of motion of paper, adjacent shower nozzle is set in the end to end mode in port.
Further, the front portion of the spray hot wind device is additionally provided with liquid coating device, and the liquid coating device includes coating
Liquid bath, the first roller part and the second roller part, the first roller part bottom are located at below the liquid level of coating liquid bath, and the second roller part is arranged on first
Roller part upper end, and the roll surface of the roll surface of the second roller part and the first roller part is tangent.
Further, the hot blast gas pressure station is connected by airduct with air-heater.
Further, it is provided with control valve on the connecting pipe.
Further, the spray hot wind element number is 15-25.
The beneficial effects of the invention are as follows：
1. the present invention is by using plastic binder and natural plant gum, formula is simple, and adhesive force is strong, coordinates hot-blast pressure spray technology
Quickly coating layer can be firmly combined together with original paper layer, whole process only needs 30-42s to complete the full mistake of coating process
Journey, substantially reduces coating process flow, greatly improves operating efficiency；Product do not peel, not scaling-off, the smoothness of paper product,
Ink absorption, print gloss are significantly increased, and expand the application of synthetic paper；
2. the coating apparatus total length of the present invention is about 8m, occupies little space, improve unit area output capacity, side swift to operate
Just, and this equipment investment is small, 1/10th of only common coating machine.
Brief description of the drawings
Fig. 1 is the structural representation of coating apparatus of the present invention；
Fig. 2 is the structural representation of spray hot wind unit of the present invention.
In figure：1. transmitting device, 2. spray hot wind units, 3. hot blast gas pressure station, 4. shower nozzles, 5. connecting pipes, 51. controls
Valve, 6. synthetic papers, 7. coating liquid baths, 8. first roller parts, 9. second roller parts.
Embodiment
Below in conjunction with the accompanying drawings 1,2 pairs of accompanying drawing principle and feature of the invention is described, and illustrated embodiment is served only for explaining
The present invention, is not intended to limit the scope of the present invention.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For one of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Embodiment 1
Using the coating process of environmentally friendly synthetic paper Special coating liquid, comprise the following steps：
a）The preparation of coating fluid：By weight percentage, 2% starch is added in 20% normal-temperature water and stirred, then heated
Into thick, then add 15% titanium dioxide, 30% glutinous rice glue and 30% plastic binder thereto, electric stirring is to uniformly producing painting
Cloth liquid；Wherein, the plastic binder uses polyvinyl alcohol, water, titanate coupling agent with 1:3:0.1 part by weight mixing system
Into；
b）Coating：Coating layer is made on synthetic paper body paper surface in coating liquid obtained by step a；
c）Forced air sprays：Apply forced air to painting layer surface；The forced air temperature is 80 DEG C, painting layer surface
Blast is 0.1MPa, and the action time of single pressure spray hot wind is 2s, and forced air jet-action number of times is 25 times, adjacent two
Secondary forced air injection interval 0.1s；The forced air act on painting layer surface show as by some application points be linked to be it is straight
Line.
The equipment that the coating process of the present embodiment is used, including transmitting device 1, spray hot wind device, the hot blast spray
Injection device includes 25 spray hot wind units 2 being uniformly arranged along the direction of motion of synthetic paper 6, and the spray hot wind unit 2 includes
Hot blast gas pressure station 3 and the shower nozzle 4 along the predetermined number being uniformly arranged perpendicular to the direction of motion of synthetic paper 6, shower nozzle 4 pass through connection
Pipeline 5 is connected with hot blast gas pressure station 3, and the shower nozzle 4 is set to duck-beak type shower nozzle, and the port of shower nozzle 4 is towards synthetic paper 6, and vertically
In the direction of motion of synthetic paper 6, adjacent shower nozzle 4 is set in the end to end mode in port.
The front portion of spray hot wind device described in the present embodiment is additionally provided with liquid coating device, and the liquid coating device includes coating
Liquid bath 7, the first roller part 8 and the second roller part 9, the bottom of the first roller part 8 are located at below the liquid level of coating liquid bath 7, and the second roller part 9 is set
In the upper end of the first roller part 8, and the roll surface of the roll surface of the second roller part 9 and the first roller part 8 is tangent.
Hot blast gas pressure station 3 described in the present embodiment is connected by airduct with air-heater.
Control valve 51 is provided with connecting pipe 5 described in the present embodiment.
Embodiment 2
Using the coating process of environmentally friendly synthetic paper Special coating liquid, comprise the following steps：
a）The preparation of coating fluid：By weight percentage, 10% starch is added in 35% normal-temperature water and stirred, then heated
Into thick, then add 10% titanium dioxide, 20% glutinous rice glue and 20% plastic binder thereto, electric stirring is to uniformly producing painting
Cloth liquid；Wherein, the plastic binder uses polyvinyl alcohol, water, titanate coupling agent with 1:3:1 part by weight mixing system
Into；
b）Coating：Coating layer is made on synthetic paper body paper surface in coating liquid obtained by step a；
c）Forced air sprays：Apply forced air to painting layer surface；The forced air temperature is 90 DEG C, painting layer surface
Blast is 0.2MPa, and the action time of single pressure spray hot wind is 1s, and forced air jet-action number of times is 20 times, adjacent two
Secondary forced air injection interval 0.5s；The forced air act on painting layer surface show as by some application points be linked to be it is straight
Line.
The environmentally friendly synthetic paper coating apparatus be the same as Example 1 that the coating process of the present embodiment is used, except that, hot blast
The quantity of injection unit 2 is 20.
Embodiment 3
Using the coating process of environmentally friendly synthetic paper Special coating liquid, comprise the following steps：
a）The preparation of coating fluid：By weight percentage, 18% starch is added in 50% normal-temperature water and stirred, then heated
Into thick, then add 5% titanium dioxide, 10% glutinous rice glue and 10% plastic binder thereto, electric stirring is to uniformly producing coating
Liquid；Wherein, the plastic binder uses polyvinyl alcohol, water, titanate coupling agent with 1:3:2 part by weight is mixed；
b）Coating：Coating layer is made on synthetic paper body paper surface in coating liquid obtained by step a；
c）Forced air sprays：Apply forced air to painting layer surface；The forced air temperature is 100 DEG C, coating layer table
Face blast is 0.4MPa, and the action time of single pressure spray hot wind is 0.1s, and forced air jet-action number of times is 15 times, phase
Adjacent forced air injection interval 2s twice；The forced air acts on painting layer surface and shows as what is be linked to be by some application points
Straight line.
The environmentally friendly synthetic paper coating apparatus be the same as Example 1 that the coating process of the present embodiment is used, except that, hot blast
The quantity of injection unit 2 is 15.
The operation principle of the equipment of the coating process is：The body paper of synthetic paper 6 passes through the first roller part 8 and the second roller part first
Between 9, the coating fluid picked in coating liquid bath 7 is applied on synthetic paper 6 by the first roller part 8 under rolling, then in the first roller part 8
Under the squeezing action of the second roller part 9, coating fluid is uniformly coated on synthetic paper top layer, during by spray hot wind unit 2, hot blast
The hot blast with specified pressure in gas pressure station 3 is ejected into painting layer surface via shower nozzle 4, due to same spray hot wind unit 2
On the port of multiple shower nozzles 4 it is end to end, if hot dry wind application point formation one hot blast perpendicular to the direction of motion of synthetic paper 6 it is straight
Line acts on painting layer surface, and hot-blast pressure injection can make coating layer contained humidity drift about, vaporize to top layer, while closely knit solid
Change the combination of coating layer and body paper, about 20cm buffer distance is reserved between the adjacent injection of hot-blast pressure twice, is easy to synthesis
Paper balances internal stress, and by multiple hot-blast pressure jet-action, coating layer can be good at being combined as a whole with body paper.
Synthesis body paper and above-described embodiment are subjected to Substance detection respectively, detection method is with reference to GB/T451.2-
2002；
Synthesis body paper and above-described embodiment are subjected to paper sheet thickness detection respectively, detection method is with reference to GB/T451.3-2002；
Synthesis body paper and above-described embodiment are subjected to paper brightness detection respectively, detection method is with reference to GB/T7974-2002；
Synthesis body paper and above-described embodiment are subjected to paper opacity detection respectively, detection method is with reference to GB/T1541-2005；
Synthesis body paper and above-described embodiment are subjected to paper tensile strength detection respectively, detection method is with reference to GB/T12914-2008
Middle constant rate of extension method；
Synthesis body paper and above-described embodiment are subjected to paper smoothness detection respectively, detection method is with reference to GB/T456-2002；
Synthesis body paper and above-described embodiment are subjected to paper printing ink absorbability detection respectively, detection method is with reference to GB/T12911-
1991；
Synthesis body paper and above-described embodiment are subjected to paper printing glossiness detection respectively, detection method is with reference to GB/T12032-
2005 and GB/T8941.3-1988；Detection data are shown in Table 1.
The testing result of the synthetic paper body paper of table 1 and embodiment
| Classification | Synthesize body paper | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| It is quantitative（g/m2） | 165 | 260 | 266 | 268 |
| Thickness（mm） | 0.153 | 0.201 | 0.206 | 0.207 |
| Brightness（%） | 82.8 | 88.9 | 88.8 | 88.8 |
| Opacity（%） | 87.2 | 97.4 | 97.6 | 97.5 |
| Tensile strength（It is vertical/horizontal）（kN/m） | 1.15/1.04 | 1.40/1.21 | 1.43/1.22 | 1.44/1.22 |
| Smoothness（s） | 5 | 8 | 9 | 9 |
| Ink absorption（%） | 19 | 38 | 37 | 39 |
| Print gloss（Gloss Unit） | 13 | 31 | 31 | 30 |
From the data in table 1, it can be seen that compared with synthetic paper body paper, being coated with using made from Special coating liquid of the present invention and coating process
Paper, smoothness improves 60-80%, and ink absorption is doubled left and right, smoothness, ink absorption and print gloss
Degree has conspicuousness raising, while the brightness of coating paper, opacity, tensile strength are also obviously improved respectively, therefore has
Significant creative feature.
The beneficial effects of the invention are as follows：
1. the present invention is by using plastic binder and natural plant gum, formula is simple, and adhesive force is strong, coordinates hot-blast pressure spray technology
Quickly coating layer can be firmly combined together with original paper layer, whole process only needs 30-42s to complete the full mistake of coating process
Journey, substantially reduces coating process flow, greatly improves operating efficiency；Product do not peel, not scaling-off, the smoothness of paper product,
Ink absorption, print gloss are significantly increased, and expand the application of synthetic paper；
2. the coating apparatus total length of the present invention is about 8m, occupies little space, improve unit area output capacity, side swift to operate
Just, and this equipment investment is small, 1/10th of only common coating machine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. environmentally friendly synthetic paper Special coating liquid, it is characterised in that include the percentage by weight of following composition：
Starch 2-18%, water 20-50%, titanium dioxide 5-15%, natural plant gum 10-30%, plastic binder 10-30%；The natural plant gum is adopted
With glutinous rice glue, the composite parts of the plastic binder includes polyvinyl alcohol, water, titanate coupling agent.
2. environmentally friendly synthetic paper Special coating liquid according to claim 1, it is characterised in that the polyvinyl alcohol, water, metatitanic acid
Ester coupling agent is with 1:3:0.1-2 part by weight mixing.
3. the coating process of the environmentally friendly synthetic paper Special coating liquid described in a kind of use claim 1, it is characterised in that including such as
Lower step：
a）The preparation of coating fluid：Coating fluid is made by the percentage by weight is well mixed in above-mentioned each composition；
b）Coating：Coating layer is made on synthetic paper body paper surface in coating liquid obtained by step a；
c）Forced air sprays：Apply forced air to painting layer surface；The forced air temperature is 80-100 DEG C, coating layer
Pressures are 0.1-0.4MPa, and the action time of single pressure spray hot wind is 0.1-2s, forced air jet-action number of times
For 15-25 times, the adjacent injection interval of forced air twice 0.1-2s.
4. coating process according to claim 3, it is characterised in that the process for preparation of the coating fluid is as follows：
Starch is added in normal-temperature water and stirred, be then heated into it is thick, then thereto add titanium dioxide, natural plant gum and
Plastic binder, electric stirring is to uniformly producing coating fluid.
5. coating process according to claim 3, it is characterised in that the forced air acts on painting layer surface performance
For the straight line being linked to be by some application points.
6. the equipment of a kind of coating process as described in claim any one of 3-5, it is characterised in that including transmitting device（1）、
Spray hot wind device, the spray hot wind device is included along synthetic paper（6）The hot blast for the predetermined number that the direction of motion is uniformly arranged
Injection unit（2）, the spray hot wind unit（2）Including hot blast gas pressure station（3）And along perpendicular to synthetic paper（6）The direction of motion
The shower nozzle for the predetermined number being uniformly arranged（4）, shower nozzle（4）Pass through connecting pipe（5）With hot blast gas pressure station（3）It is connected, the spray
Head（4）It is set to duck-beak type shower nozzle, shower nozzle（4）Port is towards synthetic paper（6）, and perpendicular to synthetic paper（6）The direction of motion, phase
Adjacent shower nozzle（4）Set in the mode that port is end to end.
7. equipment according to claim 6, it is characterised in that the front portion of the spray hot wind device is additionally provided with masking liquid dress
Put, the liquid coating device includes coating liquid bath（7）, the first roller part（8）With the second roller part（9）, the first roller part（8）Bottom, which is located at, to be applied
Cloth liquid bath（7）Liquid level below, the second roller part（9）It is arranged on the first roller part（8）Upper end, and the second roller part（9）Roll surface and
One roller part（8）Roll surface it is tangent.
8. equipment according to claim 6, it is characterised in that the hot blast gas pressure station（3）Pass through airduct and air-heater phase
Even.
9. equipment according to claim 6, it is characterised in that the connecting pipe（5）On be provided with control valve（51）.
10. equipment according to claim 6, it is characterised in that the spray hot wind unit（2）Quantity is 15-25.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277099.3A CN106988153A (en) | 2017-04-25 | 2017-04-25 | Environmentally friendly synthetic paper Special coating liquid and coating process and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710277099.3A CN106988153A (en) | 2017-04-25 | 2017-04-25 | Environmentally friendly synthetic paper Special coating liquid and coating process and equipment |
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| CN106988153A true CN106988153A (en) | 2017-07-28 |
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|---|---|---|---|
| CN201710277099.3A Pending CN106988153A (en) | 2017-04-25 | 2017-04-25 | Environmentally friendly synthetic paper Special coating liquid and coating process and equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109098036A (en) * | 2018-10-26 | 2018-12-28 | 广东阿博特数码纸业有限公司 | A kind of printing paper coating process |
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Application publication date: 20170728 |