CN113389089A - Recycled paper suitable for pressing 3D (three-dimensional) patterns and file seal thereof - Google Patents

Recycled paper suitable for pressing 3D (three-dimensional) patterns and file seal thereof Download PDF

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Publication number
CN113389089A
CN113389089A CN202010170257.7A CN202010170257A CN113389089A CN 113389089 A CN113389089 A CN 113389089A CN 202010170257 A CN202010170257 A CN 202010170257A CN 113389089 A CN113389089 A CN 113389089A
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China
Prior art keywords
surface layer
seal
recycled paper
patterns
layer
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Granted
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CN202010170257.7A
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Chinese (zh)
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CN113389089B (en
Inventor
萧文镇
吴静
高宇昕
高潮
林向晖
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Zhejiang Shanying Paper Industry Co Ltd
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Zhejiang Shanying Paper Industry Co Ltd
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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
    • D21H27/02—Patterned paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/07—Embossing, i.e. producing impressions formed by locally deep-drawing, e.g. using rolls provided with complementary profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • 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 flexible containers for postal or other purposes having no structural provision for thickness of contents
    • 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 flexible 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F2201/00—Mechanical deformation of paper or cardboard without removing material
    • B31F2201/07—Embossing
    • B31F2201/0779—Control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/26—All layers being made of paper or paperboard
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/80—Packaging reuse or recycling, e.g. of multilayer packaging

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Credit Cards Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention provides a piece of recycled paper suitable for pressing 3D (three-dimensional) patterns and a file seal thereof, which solve the problem that the paper is easy to crack when the patterns are embossed, and the like. The invention has the advantages of difficult fragmentation of the stamped paper, lower cost, less pollution and the like.

Description

Recycled paper suitable for pressing 3D (three-dimensional) patterns and file seal thereof
Technical Field
The invention belongs to the technical field of recycled paper, and particularly relates to recycled paper suitable for pressing 3D (three-dimensional) patterns and a file seal thereof.
Background
The recycled paper is paper produced by using waste paper as a raw material, smashing the waste paper, deinking and decolorizing the waste paper and performing various processes; more than seventy percent of the raw materials of the paper are from recycled waste paper, so the paper is praised as environment-friendly paper with low energy consumption. The waste paper regeneration is not only the significance of resource recovery, but also has the positive effects of saving water resources and energy consumption, reducing the emission of waste and carbon dioxide and the like, and having small impact on the environment. According to statistics, the use of waste paper for making paper can reduce seventy-five percent of air pollution, thirty-five percent of water pollution, sixty percent of water consumption, and forty percent of energy consumption, and can reduce a large amount of waste. However, since recycled paper has short paper fibers, it is difficult to realize a 3D embossing effect due to low strength. The fiber strength of the recycled paper is cracked at the concave-convex edge in the pressing process, so that the texture depth change of different concave-convex layers cannot be pressed.
The surface or the back of the existing document seal adopts a printing identification mode to realize the functions of distributing and dispatching the document seal in the transportation and circulation process. Conventional printing methods such as ink jet printing consume large amounts of ink, which increases printing costs. Meanwhile, chemical raw materials used in the printing process contain a plurality of harmful substances, and have adverse effects on the environment.
In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses a western style envelope [02242373.7] having a surface with indentations and ridges, comprising: the front cover is provided with a side cover with one side capable of being folded inwards, the side cover is bonded with the bottom cover into a whole after being folded inwards, and continuous concave grains and convex grains are respectively formed on the surfaces of the front cover, the bottom cover and the upper cover.
The scheme solves the problems of high printing cost and environmental pollution of the document seal to a certain extent, but the scheme still has a plurality of defects, such as easy fragmentation of recycled paper used for stamping and the like.
Disclosure of Invention
The invention aims to solve the problems and provides regenerated paper which is reasonable in design and not easy to break when being used for pressing 3D patterns.
Another object of the present invention is to solve the above problems and provide a file seal made of recycled paper suitable for pressing 3D patterns, which has the advantages of reasonable design, low production cost and less pollution.
In order to achieve the purpose, the invention adopts the following technical scheme: recycled paper suitable for pressing 3D patterns comprises recycled paper, and the gram weight of the recycled paper is 170-250 g/m2The tightness is 0.58-0.9 g/cm3The moisture content is 6-10%, the smoothness is more than 5s, the transverse expansion rate/longitudinal expansion rate of the recycled paper is more than 2, and the transverse expansion rate is more than 5%. The improved recycled paper has stronger toughness, can bear the actual tangential pressure of an embossing machine, and is not easy to tear at the edge.
The file seal prepared by adopting the recycled paper suitable for pressing the 3D stereoscopic patterns is as follows: in this document, it includes top layer and the bottom layer that is made by recycled paper, and at least one in top layer and the bottom layer is equipped with the 3D stereogram, and the depth of 3D stereogram is above 3mm, and the shape of 3D stereogram is one or several combinations in figure, letter and characters. The 3D three-dimensional patterns printed on the surface layer or the bottom layer display text or pattern information through the concave-convex property of the three-dimensional patterns, so that the use of printing ink is avoided, the environmental pollution is reduced, and the production cost is reduced.
In the file seal, three edges of the surface layer are provided with a left tongue seal, a right tongue seal and an upper tongue seal, the other edge of the surface layer is connected with the bottom layer, the surface layer is connected with the edge of the bottom layer through the left tongue seal and the right tongue seal, the upper end of the upper tongue seal of the surface layer is provided with an easy-to-tear tape, the easy-to-tear tape is in a sawtooth shape or a stripe shape, and the lower end of the upper tongue seal of the surface layer is provided with a bonding area. The surface layer and the bottom layer are connected through the left tongue seal, the right tongue seal and the upper tongue seal, the edges are attached and sealed, the adhesion and the rear sealing performance are good, only one edge is reserved for opening the file seal, the upper tongue seal can tear the easy-to-tear tape along a straight line after being sealed through the bonding area, and the opening and the closing are convenient.
In the above document envelope, the fineness of the figure of the 3D solid pattern is 1mm or more and the fineness of the letter or character is 0.9mm or more. The fineness of the 3D stereoscopic patterns is limited, and the problem of damage caused by the fact that the 3D stereoscopic patterns are too fine when the regenerated paper is pressed is avoided.
In the above document cover, the height of the chinese character in the 3D solid pattern is 9mm or more and the height of the english character is 6mm or more. The size of the characters of the 3D stereoscopic patterns is limited, the height of the characters is large, and the tangential force borne by the edges is small when pressing is guaranteed.
In the above document seal, the 3D stereoscopic pattern provided on the top of the surface layer is a figure. The figure formed by the 3D three-dimensional patterns is attractive and elegant, and the characteristics of the figure can be effectively highlighted.
In the above document seal, the 3D stereoscopic pattern provided on the lower part of the surface layer is a combination of characters and letters. The 3D relief in the lower portion of the surface layer is typically used to represent the document cover number and therefore uses a combination of text and letters.
In the above document seal, the 3D stereoscopic patterns provided in the middle blank of the surface layer are characters. The 3D stereoscopic patterns in the middle blank are characters which are generally used for representing document names, the characters are generally large characters, specifically, the characters can be advertisement characters to display value views or beliefs of companies, and the influence of the companies can be enlarged.
In the file seal, braille is arranged at the lower end of the surface layer and/or the bottom layer. The braille on the surface layer or the bottom layer is used for touching hands, so that the blind can conveniently identify files through the braille, the 3D patterns of the envelope can be matched by setting the braille, and the integral style is consistent.
In the file envelope, the surface layer and/or the bottom layer are/is provided with an RFID chip. The RFID chip is buried in the surface layer, the bottom layer or the middle core layer of the paper in the process of pasting or base paper making production. The non-contact bidirectional data communication can be carried out in a wireless radio frequency mode, and the recording medium is read and written in the wireless radio frequency mode, so that the aims of identifying the target and exchanging data are fulfilled.
Compared with the prior art, the invention has the advantages that: the recycled paper is improved, so that the recycled paper can bear larger tangential stress, and the paper breakage caused by stamping is reduced; 3D patterns are pressed on the surface layer and the bottom layer of the file seal, so that printing ink is not used for printing, and environmental pollution and production cost are reduced; 3D patterns capable of pressing patterns are attractive and elegant, accord with the principle of modern design simplification, and can highlight the characteristics of LOGO; the surface layer or the bottom layer is provided with the RFID chip, so that the identification and data exchange are convenient.
Drawings
FIG. 1 is a schematic structural diagram of a sixth embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a seventh embodiment of the present invention;
in the figure, a surface layer 1, a left tongue seal 11, a right tongue seal 12, an upper tongue seal 13, a bottom layer 2, a 3D stereoscopic pattern 3, a figure 31, a letter 32, a character 33, an easy-to-tear tape 4, an adhesive area 5, braille 6 and an RFID chip 7.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
A3D stereoscopic pattern 3 is pressed on the surface of the recycled paper through a full-automatic deep embossing machine, the pressing process is that the embossing pressure is controlled within the thickness range of 1.5-2.0 mm under 660 tons of parallel pressure, and the embossing temperature is controlled within 100-120 ℃; the depth of the 3D stereoscopic patterns 3 is 3 mm; the gram weight of the recycled paper is 170g/m2Tightness of 0.6g/cm3The moisture content was 6%, the smoothness was 6s, the transverse stretchability of the recycled paper was 8%, and the longitudinal stretchability was 3%. The requirement of pressing the 3D stereoscopic patterns 3 is met.
Example two
Is suitable for pressingThe 3D stereoscopic pattern 3 is pressed on the surface of the recycled paper through a full-automatic deep embossing machine, the pressing process is that the embossing pressure is controlled within the thickness range of 1.5-2.0 mm under 680 tons of parallel pressure, and the embossing temperature is controlled within 100-120 ℃; the depth of the 3D stereoscopic patterns 3 is 4.5 mm; the gram weight of the recycled paper is 190g/m2Tightness of 0.79g/cm3The moisture content was 8%, the smoothness was 7s, the transverse stretchability of the recycled paper was 7%, and the longitudinal stretchability was 2.4%. The requirement of pressing the 3D stereoscopic patterns 3 is met.
EXAMPLE III
A3D stereoscopic pattern 3 is pressed on the surface of the recycled paper through a full-automatic deep embossing machine, the pressing process is that the embossing pressure is controlled within the thickness range of 1.5-2.0 mm under 700 tons of parallel pressure, and the embossing temperature is controlled within 100-120 ℃; the depth of the 3D stereoscopic patterns 3 is 5.5 mm; grammage of recycled paper 230g/m2Tightness of 0.83g/cm3The moisture content was 9%, the smoothness was 9s, the transverse stretchability of the recycled paper was 10%, and the longitudinal stretchability was 3%. The requirement of pressing the 3D stereoscopic patterns 3 is met.
Example four
A3D stereoscopic pattern 3 is pressed on the surface of the recycled paper through a full-automatic deep embossing machine, the pressing process is that the embossing pressure is controlled within the thickness range of 1.5-2.0 mm under 660 tons of parallel pressure, and the embossing temperature is controlled within 100-120 ℃; the depth of the 3D stereoscopic patterns 3 is 3 mm; grammage of the recycled paper is 145g/m2Tightness of 0.5g/cm3The moisture content was 6% and the smoothness was 6 s. The recycled paper had a transverse stretchability of 8% and a longitudinal stretchability of 3%. The crushing and breaking phenomena occur during the pressing process, and it can be seen that when the gram weight of the recycled paper is less than 170g/m2When the depth of the 3D stereoscopic patterns 3 is more than 3mm, the strength and tightness are low, and the 3D stereoscopic patterns are damaged when stressed; the envelope tears. When the tightness of the recycled paper is lower than 0.57g/cm3When the depth of the 3D three-dimensional pattern 3 is 3mm or more, the envelope is crushed and broken. Therefore, the depth of the 3D stereoscopic patterns 3 is more than 3 mm; the gram weight of the recycled paper is 170-250 g/m2The tightness is 0.58-0.9 g/cm3The 2 physical parameters of the recycled paper must reach the range to overcome the technical problem proposed by the present application, that is, the technical problem that the recycled paper is easy to break when being used as a raw material to press 3D stereoscopic patterns is solved.
EXAMPLE five
A3D stereoscopic pattern 3 is pressed on the surface of a main body of the recycled paper through a full-automatic deep embossing machine, the pressing process is that the embossing pressure is controlled within the thickness range of 1.5-2.0 mm under 660 tons of parallel pressure, and the embossing temperature is controlled within 100-120 ℃; the depth of the 3D stereoscopic patterns is 3 mm; the gram weight of the recycled paper body is 175g/m2Tightness of 0.5g/cm3The moisture content was 6% and the smoothness was 6 s. The main body of the recycled paper had a transverse stretchability of 6% and a longitudinal stretchability of 3.5%. When the depth of the 3D stereoscopic patterns 3 is more than 3mm, the crushing and breaking phenomena occur in the pressing process, because the ratio of the transverse expansion rate to the longitudinal expansion rate is less than 2, the transverse fibers are reduced, and the 3D stereoscopic patterns are damaged after being stressed transversely in the pressing process.
EXAMPLE six
As shown in figure 1, the file seal prepared by the recycled paper suitable for pressing the 3D stereoscopic patterns comprises a surface layer 1 and a bottom layer 2 made of the recycled paper, wherein at least one of the surface layer 1 and the bottom layer 2 is provided with the 3D stereoscopic patterns 3, the depth of the 3D stereoscopic patterns 3 is more than 3mm, and the 3D stereoscopic patterns 3 are in the shape of one or a combination of a plurality of patterns 31, letters 32 and characters 33. The 3D three-dimensional decorative pattern 3 that sets up on the top layer 1 and the bottom 2 of file seal forms through embosser suppression, and in the pressing process, guarantee 3D three-dimensional decorative pattern 3's degree of depth more than 3mm to show shadow effect, improved three-dimensional expressive force, compare traditional printing ink printing, the cost is lower, and artistic effect is better.
Specifically, three edges of the surface layer 1 are provided with a left tongue seal 11, a right tongue seal 12 and an upper tongue seal 13, the other edge of the surface layer 1 is connected with the bottom layer 2, and the surface layer 2 is connected with the edge of the bottom layer 2 through the left tongue seal 11 and the right tongue seal 12. After the surface layer 1 and the bottom layer 2 are folded in half, the left tongue seal 11, the right tongue seal 12 and the upper tongue seal 13 are bent relative to the surface layer 1, the inner side of the left tongue seal is attached to the outer side surface of the surface layer 1, and the edges of the left tongue seal, the right tongue seal and the upper tongue seal are sealed.
Deeply, the upper end of the upper tongue seal 13 of the surface layer 1 is provided with an easy-to-tear tape 4, the easy-to-tear tape 4 is in a zigzag or stripe shape, and the lower end of the upper tongue seal 13 of the surface layer 1 is provided with a bonding area 5. The bonding area 5 of the upper tongue seal 13 is attached and sealed with the bottom layer 2 after the file is loaded, and when the file seal needs to be opened, the easy-to-tear tape 4 is torn along the long edge direction of the file seal.
Furthermore, the fineness of the figure 31 of the 3D solid pattern 3 is 1mm or more and the fineness of the letter 32 or the character 33 is 0.9mm or more. The requirement of the figure 31 and the letter 32 or the character 33 in the 3D three-dimensional pattern 3 on the fineness is different, and the fineness sets a lower limit, so that the damage caused by overlarge shearing stress on paper when the 3D three-dimensional pattern 3 is pressed is avoided.
Furthermore, the 3D solid pattern 3 has a height of a chinese character of 9mm or more and a height of an english character of 6mm or more. The 3D solid pattern 3 is provided with a lower height limit for Chinese characters and English characters respectively, so that the expression of the character shadow effect is ensured, and if the height is too small, the concave-convex parts in the pressed letters 32 and characters 33 are easy to wrinkle relative to paper.
Meanwhile, the 3D solid pattern 3 provided on the top of the surface layer 1 is a pattern 31. The graphic 31 is generally used for representing LOGO of company enterprises, and has a better artistic representation effect compared with plane printing and three-dimensional images.
In addition, the 3D solid pattern 3 provided on the lower portion of the top sheet 1 is a combination of the letters 33 and the letters 32. The 3D relief 3 in the lower part of the surface layer 1 is used to represent the company name, corresponding to the LOGO of the upper figure 31.
The 3D solid pattern 3 provided in the central space of the top sheet 1 is visible as a character 33. The 3D stereoscopic patterns 3 in the middle blank are positioned at the center position and can be specifically advertisement characters so as to reflect the value of a company.
It is clear that the lower end of the surface layer 1 and/or the bottom layer 2 is provided with braille 6. The Braille 6 is similar to the pressing process of the 3D three-dimensional patterns 3, the structure is relatively simple, a dotted structure is generally adopted, the Braille can correspond to the 3D three-dimensional patterns 3, the consistency of the overall style is guaranteed, the blind can conveniently recognize the Braille, and the Braille has attractiveness and practicability.
Preferably, the surface layer 1 and/or the bottom layer 2 are provided with an RFID chip 7. The RFID chip 7 is a radio frequency identification technology, which is one of automatic identification technologies, and performs non-contact bidirectional data communication in a radio frequency manner, and reads and writes a recording medium in a radio frequency manner, thereby achieving the purpose of identifying a target and exchanging data.
In summary, the principle of the present embodiment is: the traditional ink printing is cancelled, the embossing machine is adopted to press the 3D stereoscopic patterns 3 on the surface layer 1 or the bottom layer 2 of the file seal, the patterns 31, the letters 32 or the characters 33 can be selected to meet different use requirements, the environmental pollution is reduced, and the production cost is reduced; different 3D stereoscopic patterns 3 have different limits on fineness and size, so that paper damage caused by overlarge shearing stress on paper during pressing is avoided; the edges of the surface layer 1 and the bottom layer 2 are sealed by a left tongue seal 11, a right tongue seal 12 and an upper tongue seal 13 after being folded, and an easy-tear tape 4 is arranged to facilitate opening after being sealed.
EXAMPLE seven
As shown in fig. 2, the structure, principle and implementation steps of the present embodiment are similar to those of the present embodiment, except that three sides of the surface layer 1 in the present embodiment are only provided with a left tongue seal 11 and a right tongue seal 12, the other side of the surface layer 1 is connected with the bottom layer 2, the surface layer 1 is connected with the bottom layer through the left tongue seal 11 and the right tongue seal 12, the upper end of the surface layer 1 is provided with an easy-to-tear tape 4, the lower end of the surface layer 1 is provided with a bonding area 5, at least one side of the surface layer 1 and the bottom layer 2 is provided with a 3D three-dimensional pattern 3, and the depth of the 3D three-dimensional pattern 3 is more than 3 mm.
In summary, the principle of the present embodiment is: the tongue that goes up of having cancelled top layer 1 one side seals 13, adopts bonding area 5 to be connected the edge of top layer 1 and the edge direct laminating of bottom 2, will easily tear tape 4 simultaneously and adjust to the upper end of top layer 1, remains the 3D three-dimensional decorative pattern 3 of top layer 1 or bottom 2.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of skin layer 1, left tongue seal 11, right tongue seal 12, upper tongue seal 13, bottom layer 2, 3D solid pattern 3, graphics 31, letters 32, letters 33, tear tape 4, adhesive area 5, braille 6, RFID chip 7, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (10)

1. The recycled paper suitable for pressing 3D patterns is characterized by comprising recycled paper, wherein the gram weight of the recycled paper is 170-250 g/m2The tightness is 0.58-0.9 g/cm3The moisture content is 6-10%, the smoothness is more than 5s, the transverse expansion rate/longitudinal expansion rate of the recycled paper is more than 2, and the transverse expansion rate is more than 5%.
2. The file cover prepared by the recycled paper suitable for pressing the 3D stereoscopic pattern is characterized by comprising a surface layer (1) and a bottom layer (2) which are made of the recycled paper, wherein at least one of the surface layer (1) and the bottom layer (2) is provided with the 3D stereoscopic pattern (3), the depth of the 3D stereoscopic pattern (3) is more than 3mm, and the shape of the 3D stereoscopic pattern (3) is one or a combination of a plurality of patterns (31), letters (32) and characters (33).
3. The document seal according to claim 2, characterized in that, three sides of the surface layer (1) are provided with a left tongue seal (11), a right tongue seal (12) and an upper tongue seal (13), the other side of the surface layer (1) is connected with the bottom layer (2), the surface layer (2) is connected with the edge of the bottom layer (2) through the left tongue seal (11) and the right tongue seal (12), the upper end of the upper tongue seal (13) of the surface layer (1) is provided with an easy-to-tear tape (4), the easy-to-tear tape (4) is in a zigzag or stripe shape, and the lower end of the upper tongue seal (13) of the surface layer (1) is provided with a bonding area (5).
4. Document seal according to claim 2 or 3, characterized in that the pattern (31) of the 3D motif (3) has a fineness of more than 1mm and the letters (32) or letters (33) have a fineness of more than 0.9 mm.
5. The document cover according to claim 2 or 3, characterized in that the 3D motif (3) has a height of Chinese font of more than 9mm and a height of English font of more than 6 mm.
6. The document cover according to claim 2 or 3, characterized in that the 3D motif (3) provided on the top of the surface layer (1) is a graphic (31).
7. Document cover according to claim 2 or 3, characterized in that the 3D motif (3) provided on the lower part of the surface layer (1) is a combination of letters (33) and letters (32).
8. The document cover according to claim 2 or 3, characterized in that the 3D motif (3) provided in the central space of the surface layer (1) is a text (33).
9. The document cover according to claim 2, characterized in that the lower end of the surface layer (1) and/or the bottom layer (2) is provided with braille (6).
10. The document cover according to claim 2, characterized in that the surface layer (1) and/or the bottom layer (2) are provided with an RFID chip (7).
CN202010170257.7A 2020-03-12 2020-03-12 Recycled paper suitable for pressing 3D stereoscopic patterns and file seal thereof Active CN113389089B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1580395A (en) * 2004-05-18 2005-02-16 岳阳纸业股份有限公司 Light printing paper and its manufacture method
JP5837676B1 (en) * 2014-12-26 2015-12-24 大王製紙株式会社 Press pocket type carrier tape
JP2016124618A (en) * 2015-09-14 2016-07-11 大王製紙株式会社 Press pocket type carrier-tape base paper
JP2017133129A (en) * 2016-01-28 2017-08-03 大王製紙株式会社 Base paper for press pocket type carrier tape
CN110373950A (en) * 2019-07-26 2019-10-25 临安福马装饰材料有限公司 A kind of ultra-deep embosses the processing technology of synchronous finishing paper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1580395A (en) * 2004-05-18 2005-02-16 岳阳纸业股份有限公司 Light printing paper and its manufacture method
JP5837676B1 (en) * 2014-12-26 2015-12-24 大王製紙株式会社 Press pocket type carrier tape
JP2016124618A (en) * 2015-09-14 2016-07-11 大王製紙株式会社 Press pocket type carrier-tape base paper
JP2017133129A (en) * 2016-01-28 2017-08-03 大王製紙株式会社 Base paper for press pocket type carrier tape
CN110373950A (en) * 2019-07-26 2019-10-25 临安福马装饰材料有限公司 A kind of ultra-deep embosses the processing technology of synchronous finishing paper

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