CN105059683B - A kind of purposes of acrylate/occlusive polyurethane lotion enhancing paper folding strength - Google Patents
A kind of purposes of acrylate/occlusive polyurethane lotion enhancing paper folding strength Download PDFInfo
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- CN105059683B CN105059683B CN201510498403.8A CN201510498403A CN105059683B CN 105059683 B CN105059683 B CN 105059683B CN 201510498403 A CN201510498403 A CN 201510498403A CN 105059683 B CN105059683 B CN 105059683B
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- file
- envelope
- paper
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- stupefied
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
- B65D27/12—Closures
- B65D27/14—Closures using adhesive applied to integral parts, e.g. flaps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D27/00—Envelopes or like essentially-rectangular containers for postal or other purposes having no structural provision for thickness of contents
- B65D27/32—Opening devices incorporated during envelope manufacture
- B65D27/38—Tearing-strings or -strips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention proposes a kind of preparation process of file envelope, file package includes front plate, backplate, hush panel, tear strip, adhesive area and anti-theft wire are formed in hush panel, front plate and backplate are the minitype corrugation cardboard of multilayered structure, and the surface of minitype corrugation cardboard is coated with waterproofing agent or is covered with plastic film.Preparation process includes facial tissue cutting, offset printing, applies waterproofing agent or coats plastic film, mounting facial tissue, cross cutting, patch haversack etc.；Preparation process either preprints including facial tissue, applies waterproofing agent or coating plastic film, makes cardboard, cross cutting, patch haversack.
Description
Technical field
The present invention relates to packing technique fields, are sealed more particularly, to a kind of file delivered for mail packaging.
Background technology
Envelope is sent to addressee by post office or express company after encapsulation letter or file, realizes sender and addressee
Information exchange between people；It is this to greatly save sender in a manner that envelope posts letter or file realizes information exchange
The road cost or time cost exchanged with the addressee human world, envelope mailing letter or file facilitate people’s lives.At present, postal
The envelope that office or express company select is made for paper material, usually following two structures：A kind of envelope, including envelope
Ontology, envelope ontology are made of the envelope front and the envelope back side for being used to write addressee information and adhesive stamp；In envelope just
Face is equipped with flap, and flap is Nian Jie with the envelope back side after letter or file are put into envelope ontology；Having on envelope front 1 makes letter
Envelope front and the envelope back side form the flanging for the enclosure space for placing letter or file, and flanging is bonded in the envelope back side by glue
On；For this envelope after letter or file is loaded onto, flanging does not take any safeguard measure, flanging with envelope back side bonding position
Rear secondary bonding can be opened to use, the letter or file inside envelope, which are easily replaced, to be caused to lose.
Another envelope structures, including envelope ontology, envelope ontology is by being used to pasting addressee and sender information list
Envelope front and the envelope back side are formed, and flap is equipped on the envelope back side, and being equipped on envelope front makes envelope front and envelope
The back side forms the flanging for the enclosure space for placing letter or file, and flanging is bonded in by glue on envelope front 1；Letter or text
Flap is Nian Jie with envelope front 1 after part is put into envelope ontology, and addressee and sender information list are bonded in flap again；This knot
For the envelope of structure after letter or file is loaded onto, flanging takes no any safeguard measure, flanging with the positive bonding position of envelope
Rear secondary bonding can be equally opened to use, the letter or file inside envelope, which are easily replaced, to be caused to lose.
The present inventor improves file and seals the hardness and deflection of itself early period once by using multi-layer mini-type corrugated board,
It ensure that file envelope has moistureproof and waterproof performance by being coated with waterproof layer, by using tack is good, to hold sticky strong and stripping strong
It spends high double faced adhesive tape to be sealed, and split using tear strip, while encapsulating firmness is improved, facilitates fractionation behaviour
Make, and realize and the secondary recovery that file seals is used, by addition with tearing to pieces property, the expendable antitheft edge of a knife, ensure
The delivery safety of file envelope loaded article.
But it is there are still improvements are needed, such as during express delivery is transported, since paper hardness and deflection are poor,
The article for being easy to that file inside front cover is caused to fill is folded or damages by pressure deformation.Water-repellent paint can inevitably use organic solvent, be not belonging to
Absolute environmental protection truly.Anti-theft performance is also required to be further improved simultaneously.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide one kind can effectively unpacking-preventing, prevent file quilt
Steal, waterproof, energy conservation and environmental protection and prevent the tamper file being forged seal and its production technology.
First, the present invention provides a kind of file envelope with brand new, and the multilayer for improving the present inventor's previous utilization is micro-
Type corrugated board selects the common corrugation of multilayer, including more than one that A is stupefied, B is stupefied, C is stupefied, E is stupefied, F is stupefied, G is stupefied and O is stupefied, greatly
It improves file and seals the hardness and deflection of itself, ensure that the integrality of loaded article in file envelope, reduce loaded article quilt
The risk of deformation is folded or damages by pressure, gained file envelope, which has, preferably to be folded and deformation performance against pressure.
Further, surface is carried out using the compound system that starch solution and Ludox are formed on the surface of corrugated board to apply
Glue further improves the ring crush intensity of corrugated paper while paper water resistance is ensured, promotes the deflection of file envelope.
The present invention relates to file envelope using waterproofing agent or plastic film, ensure the waterproof and dampproof performance of file envelope.It is right
In waterproofing agent, using acrylate/occlusive polyurethane emulsion system, not only cause the water proofing property of paper to enhance, while also increase
The strong folding strength of paper.But the use of above-mentioned waterproofing agent unavoidably needs to use organic solvent in production technology.For
The use of organic solvent is avoided, the feature of environmental protection of technique is provided, waterproofing agent, packet are replaced present invention simultaneously provides plastic film is used
Include polyvinyl chloride film, polyethylene film, polyester film etc., particularly preferred polyester film.On the one hand, plastic film is slim and graceful
It is bright, air-tightness is good, good waterproof performance, surface are smooth, make file envelope with better texture, water resistance.On the other hand, using modeling
Material film can not use water-repellent paint, organic using organic solvent and other volatility so as to avoid in process of production
Compound realizes the environmental protection of production process.Likewise it is preferred that using degradable films, drawn after can also improving file envelope use
The environmental protection problem risen, furthermore compared to using water-repellent paint, plastic film is recovered more easily utilization, substantially reduces and be produced into
Sheet and the generation for avoiding environmental pollution.
The security performance of file envelope is to influence one of its most important performance for using and promoting, although before the present inventor
Patented technology in using with moisture-proof adhesive and add with tearing to pieces property, the expendable antitheft edge of a knife, it is anti-to reach
The property stolen, this antitheft edge of a knife is that inner paper and facial tissue are cut through with knife version, but can be scratched open, and is not destroyed, in addition, not having
When having adhered by double sided plaster, vanning is easy to touch off when transport, on the one hand the present invention uses to solve the problems, such as this
The double faced adhesive tape of strength, when stripping, inner paper can be fallen at least 70%, on the other hand, the design weight of the edge of a knife by two-sided gluing knot
New change, only does notch on inner paper, and facial tissue is not cut through, and in the position cut of paper and area should be glued double faced adhesive tape
Position it is consistent with area or close, in this way after being glued, after stripping, paper is easy to by two-sided gluing in being cut
From getting off, and can not restore, anti-theft is more excellent.
Therefore the whole all physical indexs for changing traditional file envelope of file envelope of brand new provided by the present invention,
Performance and security performance have stronger marketing use value.
Present invention firstly provides a kind of file envelope, including：Front plate 11, backplate 12, hush panel 110, the front plate
11 top side is connected to the hush panel 110, and the bottom side of the front plate 11 is connected to the backplate 12, the hush panel
Tear strip 111 and anti-theft wire 113 are formed on 110, the front plate 11 and backplate 12 are the corrugated board of multilayered structure,
Selected from one or more of A is stupefied, B is stupefied, C is stupefied, E is stupefied, F is stupefied, G is stupefied and O is stupefied, the surface of the minitype corrugation cardboard is coated with waterproofing agent
Or plastic film is covered with, the waterproofing agent is acrylate/occlusive polyurethane emulsion system, and the plastic film, which is selected from, to be included
The group of the compositions such as polyvinyl chloride film, polyethylene film, polyester film.
Further file envelope according to the present invention, anti-theft wire form the region being closed, the enclosed region and sealing
Double faced adhesive tape region during bonding in hush panel is identical, and anti-theft wire edge of a knife depth is equal to the thickness of paper in hush panel.So as to one
It is removed again after denier sealing, paper is just got off in two-sided gluing in being cut, and can not be restored, anti-theft performance is more excellent.
Further file envelope according to the present invention, including：Left plate 13 and right plate 14, the front plate 11
Left side be connected to the left plate 13, the right side of the front plate 11 is connected to the right plate 14, in the front plate 11
After 12 doubling of backplate, the left plate 13 and right plate 14 are pasted on the outer surface of the backplate 12.
Further file envelope according to the present invention, wherein being both provided on the left plate 13 and right plate 14 anti-
Line 131,141 is stolen, the front plate 11 and backplate 12 are by backfin line integrally connected, and in the front of the backfin line both sides
The indentation line 116,121 using backfin line as line of symmetry is provided on plate 11 and backplate 12.
Further file envelope according to the present invention, wherein the front plate 11 passes through 114 integrally connected of backfin line
In the hush panel 110, the tear strip 111 traverses the whole length setting of hush panel 110, and on the tear strip 111
It is provided with reinforcing rib 112.
Further file envelope according to the present invention, wherein the tear strip 111 is by along 110 length side of hush panel
To two parallel lines spaced open up several short-term cut holes, bending cut hole or formed through circular hole, the reinforcing rib
112 along tear strip extending direction in 111 inner central of tear strip by setting one or more cotton rope or plastic strip to be formed.
Further file envelope according to the present invention, wherein the adhesive area is set to 111 top of tear strip
Hush panel inner surface, it is identical with the enclosed region shape that the anti-theft wire 113 in hush panel is formed consistent.
Further file envelope according to the present invention, wherein the length of the hush panel 110 is slightly less than the front
The length of plate 11 so that the hush panel 110 can be inserted directly into file envelope and form container structure.
Further file envelope according to the present invention, wherein the front plate 11, backplate 12 and hush panel 110
With rectangular configuration, the left plate 13 and right plate 14 have trapezium structure.
Further file envelope according to the present invention, wherein the front plate 11, backplate 12, left plate 13, the right side
All turnings of side plate 14 and hush panel 110 are respectively provided with rounded structure.
The present invention further provides the file envelope production technology,
Production technology X include facial tissue cutting, offset printing, apply waterproofing agent or coating plastic film, mount facial tissue, cross cutting,
Paste haversack, specific steps：A roll of facial tissue is first cut into required size, then upper offset press printing, use K- formulas rubbing method, spray
Coating or knife coating carry out upper laminating machine after surface coating waterproofing agent or offset press printing, in the one layer of modeling of facial tissue overlying
Expect film, then upper Paper-pasting machine, and before mounting facial tissue, core paper and inner paper are initially formed one by sewing thread on card fitting, then
Facial tissue by Paper-pasting machine is mounted on core paper by facial tissue again, couch board is just produced in this way, is subsequently die cut again in die-cutting machine,
Shoulder strap machine patch haversack is pasted, converted on molding machine, pasted double faced adhesive tape and tear adhesive tape.The waterproofing agent is the poly- ammonia of acrylate/closing
Ester emulsion system, the plastic film are selected from the group for including the compositions such as polyvinyl chloride film, polyethylene film, polyester film.
Production technology Y is preprinted including facial tissue, is applied waterproofing agent or coating plastic film, makes cardboard, cross cutting, patch haversack,
Specific steps：Machine printing will be preprinted on a roll paper, is printed using water-based ink, printed facial tissue uses K- formulas rubbing method, spraying
Method or knife coating carry out upper laminating machine after surface coating waterproofing agent or offset press printing, in one layer of plastics of facial tissue overlying
Film, then upper sewing thread on card by facial tissue out of the press, core paper and three roll paper of inner paper by board production, produce cardboard, can
To produce two layers, three layers or more layers, then it is die cut again, the follow-up works such as patch shoulder strap.The waterproofing agent is acrylate/envelope
Polyaminoester emulsion system is closed, the plastic film, which is selected from, includes the compositions such as polyvinyl chloride film, polyethylene film, polyester film
Group.
Further, preparing for the waterproofing agent that the present invention uses is as follows：It is dry and equipped with thermometer, reflux condensing tube,
Triethylamine, isophorone diisocyanate, polycaprolactone glycol and catalyst dibutyl tin are added in the reactor of blender
Cinnamic acid tin reacts 2h in 80 DEG C.It is cooled to 75 DEG C later, adds in dihydromethyl propionic acid, reaction adds in imidazoles the reaction was continued 1h.
Then, polybutylacrylate latex is slowly added into reactor, rp-emulsification is to get butyl acrylate/closing under high-speed stirred
Polyurethane complex emulsions.
The butyl acrylate being used in the present invention/occlusive polyurethane complex emulsions, on the one hand, occlusive polyurethane high temperature solution
Sealing-the NCO generated can be combined with the hydroxy chemical of paper fibre, improve the bond strength and its compactness of fiber；The opposing party
Face, butyl acrylate are used so that water resistance improves so that paper water resistance increases；It meanwhile can be with paper fiber hydroxyl shape
Into hydrogen bond, binding force between fiber is improved so that intensity increases, and folding strength can improve.
Further, the plastic film that uses of the present invention is polyester film, preferably using biaxially oriented polyester film,
With excellent transparent, soft, water resistance.Using for plastic film causes file envelope to have smooth covering, customer experience
It is good.
Further, cardboard of the invention is the corrugated board of multilayered structure, selected from A is stupefied, B is stupefied, C is stupefied, E is stupefied, F is stupefied,
G is stupefied and O it is stupefied in it is two or more, i.e., using double corrugations or more corrugations, can be AB is stupefied, BC is stupefied, ACE is stupefied, AEC is stupefied, BCE is stupefied,
EOF is stupefied, FGO is stupefied etc., by obtaining the cardboard that there is pop strength to be not less than 2000kPa to the combination selection of different corrugations, makes
The file envelope of the present invention has more damage resistibility energy.
Using the identical paper of total grammes per square metre, all properties index of file envelope that production technology of the present invention is produced can all want remote
(such as common traditional file envelope uses 300g/m to the file envelope produced far above traditional processing technology2Monolithic ash bottom it is white
Paper, and the file envelope of this patent production triplex board, facial tissue 100g/m2+ core paper 100g/m2+ inner 100 g/m of paper2, total grammes per square metre
It is 300g/m2, but the performance of file envelope that this patent is manufactured out is significantly larger than the common traditional file envelope of monolithic).
It can at least reach following technique effect by technical solutions according to the invention：
1), more preferably anti-fold, anti-damage deformation by pressure：The composition plank of file envelope of the present invention is by using multi-layer mini-type
Corrugated board can be AB is stupefied, BC is stupefied, ACE is stupefied, AEC is stupefied, BCE is stupefied, EOF is stupefied, FGO is stupefied etc., pass through the combination to different corrugations
Selection obtains the cardboard that there is pop strength to be not less than 2000kPa, enables the file envelope of the present invention have more damage resistibility, pole
The earth improves file and seals the hardness and deflection of itself, ensure that the integrality of loaded article in file envelope, reduces filled object
Product are folded or damage by pressure the risk of deformation, and gained file envelope, which has, preferably to be folded and deformation performance against pressure.
2), complete moistureproof and waterproof：File of the present invention is enclosed in inner and outer surfaces coating butyl acrylate/closing of cardboard
Polyurethane complex emulsions are directly covered with plastic film.Butyl acrylate/occlusive polyurethane complex emulsions improve fiber and combine
Intensity and compactness, plastic film it is slim and graceful it is transparent, air-tightness is good, good waterproof performance, surface are smooth, there is file envelope better
Texture, water resistance.
3), more preferably tamper-security：It is designed by each bonding part sealed in file close-shaped using having
The antitheft edge of a knife, edge of a knife depth and inner paper consistency of thickness, once breaking a seal after sealing, inner paper, which will be stripped, to restore, and ensure that
File seals the delivery safety of loaded article.
4), Safety and Environmental Protection：Water-repellent paint is replaced using film, avoids organic solvent and other volatile organics
The use of object, the environmental pollution that the use of organic solvent is avoided to bring are closed, while the use of film is more easy to be recycled, reduce ring
It pollutes in border.
5), accommodation space is big：It, can be with by each one symmetrical indentation line of design of the front plate and backplate sealed in file
File envelope is effectively strutted, accommodates more articles or with certain thickness article.
6), file envelope entire compression intensity of the present invention is big, and the physical performance indexs such as moistureproof and waterproof anti-fold are superior, make
With convenient and recoverable, have a safety feature, have a vast market popularizing application prospect.
7) file of the invention envelope preparation process is simple, and properties of product are more excellent.
Description of the drawings
Attached drawing 1 is the deployed configuration schematic diagram of file of the present invention envelope；
The meaning of each reference numeral is as follows in figure：
11- front plates, 110- hush panels, 111- tear strips, 112- reinforcing ribs, 113- anti-theft wires, 114- backfins line,
116- indentation lines, 12- backplates, 121- indentation lines, 13- left plates, 131- anti-theft wires, 14- right plates, 141- anti-theft wires.
Specific embodiment
Technical scheme of the present invention is described in detail below in conjunction with attached drawing, so that those skilled in the art can be more
Add and be clearly understood from the solution of the present invention, but the protection domain being not intended to limit the present invention.
Embodiment one：
Include as shown in Figure 1, file envelope provided by the present invention is whole：Including：Front plate 11, backplate 12, hush panel
110, the top side of the front plate 11 is connected to the hush panel 110, and the bottom side of the front plate 11 is connected to the backplate
12, tear strip 111 and anti-theft wire 113 are formed in the hush panel 110, and the front plate 11 and backplate 12 are three-layered node
Structure ACE corrugated boards, surface are coated with waterproofing agent acrylate/occlusive polyurethane emulsion system.
The front plate 11 has rectangular configuration, and the front plate 11 is connected to the hush panel by backfin line 114
110, so as to which the hush panel 110 can be folded over along backfin line 114 in the surface of front plate 11.In the hush panel
Adhesive area is further provided on 110 inner surface, the adhesive area is preferably disposed in the hush panel on 111 top of tear strip
Inner surface is formed as long and narrow strip along hush panel length direction, preferably traverses the length arrangement of entire hush panel 110, and
Using tack it is good, hold sticky strong and high peel strength irreversible double faced adhesive tape.
Anti-theft wire 113 is provided in the hush panel 110 and forms the region being closed, when the enclosed region is with seal bond
Double faced adhesive tape region in hush panel is identical, and anti-theft wire edge of a knife depth is equal to the thickness of paper in hush panel.So as to once seal
It removes again afterwards, paper is just got off in two-sided gluing in being cut, and can not be restored, anti-theft performance is more excellent.
The left plate 13 and right plate 14 are integrally connected to the left and right sides of the front plate by backfin line respectively,
The preferred left plate 13 and right plate 14 have identical trapezium structure, and divide on the left plate 13 and right plate 14
It is not provided with anti-theft wire 131 and anti-theft wire 141.
Preparation process X：A roll of facial tissue is first cut into required size, then upper offset press printing, using spray coating method or
Knife coating carries out surface coating waterproofing agent, then upper Paper-pasting machine, and before mounting facial tissue, core paper and inner paper are pasted by sewing thread on card
Conjunction is initially formed one, and then facial tissue by Paper-pasting machine is mounted on core paper to facial tissue again, just produces triplex board in this way, after
Continue and be die cut again in die-cutting machine, patch shoulder strap machine pastes haversack, is converted on molding machine, pastes double faced adhesive tape and tear adhesive tape.The waterproofing agent is
Acrylate/occlusive polyurethane emulsion system.
In drying and addition 50ml triethylamines, the different Buddhists of 10g in the reactor of thermometer, reflux condensing tube, blender are housed
You (account for isophorone diisocyanate matter at ketone diisocyanate, 5g polycaprolactone glycols and catalyst dibutyl tin dilaurate
The 0.02% of amount), react 2h in 80 DEG C.It is cooled to 75 DEG C later, adds in 0.8g dihydromethyl propionic acids, reacts 2h, adds in 10g miaows
Azoles the reaction was continued 1h.Then, 20g polybutylacrylate latexes are slowly added into reactor, under high-speed stirred rp-emulsification to get
Butyl acrylate/occlusive polyurethane complex emulsions.
Embodiment two,
File seal structure in the present embodiment is only that compared with the file seal structure of embodiment one using polyester film generation
For waterproofing agent acrylate/occlusive polyurethane emulsion system of three-decker ACE corrugated boards surface coating, remaining all same.
Preparation process X：A roll of facial tissue is first cut into required size, then upper offset press printing, after offset press printing on
Laminating machine, in facial tissue overlying layer of plastic film, plastic film is biaxially oriented polyester film, then upper Paper-pasting machine, and mounts face
Before paper, core paper and inner paper are initially formed one by sewing thread on card fitting, then facial tissue is mounted to facial tissue by Paper-pasting machine again
On core paper, three-decker ACE corrugated boards are just produced in this way, are subsequently die cut again in die-cutting machine, patch shoulder strap machine patch haversack,
It converted on molding machine, paste double faced adhesive tape and tear adhesive tape.
Embodiment three：
File seal structure is identical with one file seal structure of embodiment in the present embodiment, is prepared by following technique：
Preparation process Y：
Facial tissue is preprinted, applies waterproofing agent, makes cardboard, cross cutting, patch haversack, specific steps：Machine printing will be preprinted on a roll paper,
It is printed using water-based ink, printed facial tissue carries out surface coating waterproofing agent using spray coating method or knife coating, then upper cardboard
Line by facial tissue out of the press, core paper and three roll paper of inner paper by board production, produces cardboard, can produce three-layered node
Structure cardboard, is then die cut again, the follow-up works such as patch shoulder strap.The waterproofing agent is acrylate/occlusive polyurethane emulsion system,
It prepares with embodiment one.
Example IV：
File seal structure is identical with two file seal structure of embodiment in the present embodiment, is prepared by following technique：
Preparation process Y：
Facial tissue is preprinted, coats plastic film, makes cardboard, cross cutting, patch haversack, specific steps：Machine will be preprinted on a roll paper
Printing, is printed using water-based ink, and laminating machine is gone up after offset press printing, in facial tissue overlying layer of plastic film, then goes up cardboard
Line by facial tissue out of the press, core paper and three roll paper of inner paper by board production, produces cardboard, can produce three-ply paper
Then plate is die cut again, the follow-up works such as patch shoulder strap.
Finally illustrate that the specifically used process that file of the present invention seals is：First by front plate 11 and backplate 12 along pressure
122 doubling of broken line, is then pasted on the backplate by left plate 13 and right plate 14 by the adhesive with humidity resistance
Outer surface, formed file envelope agent structure；Then it is internal mail article to be packed into file envelope, and using the backplate 12 with
The collective effect of indentation line 121,116 in front plate 11 can further strut file envelope to accommodate thicker article.It then will envelope
Oralia 110 is folded inwardly over along backfin line 114 after in the outer surface of backplate, peelling off the protective film on hush panel adhesive area,
The inner surface of hush panel 110 is pasted on to the outer surface of backplate 12, realizes the encapsulating of file envelope.When file is sealed and split, only
Tear strip 111 need to be torn can conveniently and efficiently open file envelope, while can be by by tear strip after tear strip is torn
The sealing plate part of lower section is inserted directly into along after 114 doubling of backfin line in file envelope, realizes that file is enclosed under general encapsulating requirement
Recycling.
File envelope of the present invention is improved file and is sealed the hardness of itself and endured by using multi-layer mini-type corrugated board
Degree ensure that the integrality of loaded article in file envelope；Plastic film, plastics are directly covered with by the paperboard surface sealed in file
Film it is slim and graceful it is transparent, air-tightness is good, good waterproof performance, surface are smooth, make file envelope with better texture, water resistance；It is logical
It crosses using with tack is good, it is sticky strong to hold and irreversible double faced adhesive tape high peel strength carries out the sealing of file envelope, and pass through
The fractionation that tear strip carries out file envelope is designed, while raising file package secures soundness, facilitates fractured operation, while real
Show and the secondary recovery that file seals has been used；：It is designed by each bonding part sealed in file close-shaped using having
The antitheft edge of a knife, edge of a knife depth and inner paper consistency of thickness, once breaking a seal after sealing, inner paper, which will be stripped, to restore, and ensure that
File seals the delivery safety of loaded article.The file envelope of brand new provided by the present invention is whole to change traditional file envelope
All physical indexs, performance and security performance, have stronger marketing use value.
It the above is only and the preferred embodiment of the present invention is described, technical scheme of the present invention is not limited to
This, any known deformation that those skilled in the art are made on the basis of the major technique design of the present invention belongs to the present invention
Claimed technology scope, the specific protection domain of the present invention are subject to the record of claims.
Claims (1)
1. a kind of acrylate/purposes of occlusive polyurethane lotion enhancing paper folding strength, the paper is waterproof and safe
File envelope paper, file package includes：Front plate (11), backplate (12), hush panel (110), the top of the front plate (11)
Side is connected to the hush panel (110), and the bottom side of the front plate (11) is connected to the backplate (12), the hush panel
(110) tear strip (111) and anti-theft wire (113) are formed on, the front plate (11) and backplate (12) are multilayered structure
Corrugated board, selected from A is stupefied, B is stupefied, C is stupefied and E it is stupefied in it is two or more, the surface of the corrugated board is coated with acrylate/envelope
Close polyaminoester emulsion, it is characterised in that：
Specific steps include：
Production technology Y is preprinted including facial tissue, is applied acrylate/occlusive polyurethane lotion, makes cardboard, cross cutting, patch haversack, specifically
Step：To be preprinted on a roll paper machine printing, printed using water-based ink, printed facial tissue using K- formulas rubbing method, spray coating method or
Person's knife coating carries out surface coating acrylate/occlusive polyurethane lotion, then upper sewing thread on card, by facial tissue out of the press, core paper
With inner three roll paper of paper by board production, cardboard is produced, three layers or more layers is produced, is then die cut again, patch is carried on the back
Band follow-up work；
The acrylate/occlusive polyurethane lotion prepares as follows：The acrylate/occlusive polyurethane lotion prepares as follows：
50ml triethylamines are added in drying and being equipped in the reactor of thermometer, reflux condensing tube, blender, 10g isophorones two are different
Cyanate, 5g polycaprolactone glycols and catalyst dibutyl tin dilaurate, catalyst dibutyl tin dilaurate account for different Fo Er
The 0.02% of ketone diisocyanate quality reacts 2h in 80 DEG C；It is cooled to 75 DEG C later, adds in 0.8g dihydromethyl propionic acids, instead
It answers 2h, adds in 10g imidazoles the reaction was continued 1h；Then, 20g polybutylacrylate latexes are slowly added into reactor, high-speed stirred
Lower rp-emulsification is to get butyl acrylate/occlusive polyurethane complex emulsions.
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| CN201510498403.8A CN105059683B (en) | 2015-08-13 | 2015-08-13 | A kind of purposes of acrylate/occlusive polyurethane lotion enhancing paper folding strength |
| PCT/CN2016/076451 WO2017024796A1 (en) | 2015-08-13 | 2016-03-16 | Waterproof and secure document envelope and manufacturing process thereof |
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| CN105059683B (en) * | 2015-08-13 | 2018-06-12 | 常江 | A kind of purposes of acrylate/occlusive polyurethane lotion enhancing paper folding strength |
| CN105887564B (en) * | 2016-04-07 | 2017-07-11 | 常江 | One kind reinforces file envelope and its production technology |
| CN105887563B (en) * | 2016-04-07 | 2017-07-11 | 常江 | A kind of dampproof protection against insects file envelope and its production technology |
| CN110155453A (en) * | 2018-02-12 | 2019-08-23 | 名硕电脑(苏州)有限公司 | Pack module and packaging fixture |
| CN110126426A (en) * | 2019-05-14 | 2019-08-16 | 东莞顺裕纸业有限公司 | A kind of manufacture craft of water-fast high-strength composite vertical corrugated board |
| CN110775680B (en) * | 2019-09-25 | 2021-04-06 | 浙江天之元物流科技有限公司 | Semi-automatic production process of file envelope |
| EP4323192A1 (en) * | 2021-04-15 | 2024-02-21 | Dow Global Technologies LLC | Article coated with polyisobutylene-polyolefin film |
| CN113172937B (en) * | 2021-05-17 | 2023-06-09 | 天津顶彩包装有限公司 | Processing method of corrugated paper box with easy-to-tear opening |
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| CN105059683A (en) | 2015-11-18 |
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