CN212922601U

CN212922601U - Inkless file seal with 3D deep embossing

Info

Publication number: CN212922601U
Application number: CN202021089449.7U
Authority: CN
Inventors: 吴静; 高潮; 高宇昕
Original assignee: Zhejiang Shanying Paper Industry Co Ltd
Current assignee: Zhejiang Shanying Paper Industry Co Ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-04-09
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses an inkless document seal with 3D deep embossing, which comprises a front cover and a back cover, wherein 3D solid patterns are pressed on at least one surface of the front cover and the back cover; the front cover and the back cover both comprise a regenerated paper layer, and at least the side surface of the regenerated paper layer pressed with the 3D stereoscopic patterns is provided with a damp-proof layer. The utility model discloses a file seals and adopts recycled paper to make, has that the impression paper is difficult cracked, and the cost is lower, pollutes advantages such as little, sets up the dampproof course on the side that recycled paper ply suppression has the three-dimensional decorative pattern of 3D, can effectively protect the three-dimensional decorative pattern of 3D.

Description

Inkless file seal with 3D deep embossing

Technical Field

The utility model belongs to the technical field of the file seals, concretely relates to inkless file seals with dark impressed watermark of 3D.

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 papermaking can reduce seventy-five percent of air pollution, thirty-five percent of water pollution, sixty percent of water usage and forty percent of energy consumption, and can reduce a large amount of waste, as compared to papermaking from raw wood pulp.

Meanwhile, in the using process of recycled paper or raw wood pulp, a large amount of ink is consumed in the traditional ink printing mode, and the printing cost is high; and a large amount of harmful substances are required to be used in the printing process, so that the printing method is not environment-friendly.

Therefore, the chinese utility model patent with publication number CN2567163 discloses a western-style envelope with concave lines and convex lines on the surface, which comprises a front face, a bottom cover with one end connected with the front face, and an upper cover connected with the other end of the front face, wherein two sides of the front face respectively extend to form a side cover capable of being folded inwards, and the side cover is adhered with the bottom cover into a whole after being folded inwards; the front surface, the bottom cover and the upper cover are respectively provided with continuous concave grains and convex grains.

The inkless printing mode effectively overcomes the defects caused by the traditional ink printing, but also has the following defects: the method of pressing the 3D stereoscopic concave-convex patterns on the paper enables the surface of the paper to present text or pattern contents; however, since the recycled paper has short fibers and low strength, the waterproof and moisture-proof performance of the recycled paper is poor, and after the recycled paper is wetted, the 3D stereoscopic concave-convex patterns pressed on the surface of the paper become unobvious or even disappear, so that the contents of characters or patterns to be displayed cannot be effectively displayed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a no black file seal with 3D deep embossing, this no black file seal is with low costs, and has dampproofing function.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

an inkless document seal with 3D deep embossing comprises a front cover and a back cover, wherein 3D stereoscopic patterns are pressed on at least one surface of the front cover and the back cover; the front cover and the back cover both comprise a regenerated paper layer, and at least the side surface of the regenerated paper layer pressed with the 3D stereoscopic patterns is provided with a damp-proof layer.

The utility model discloses a file seals and adopts recycled paper to make, has that the impression paper is difficult cracked, and the cost is lower, pollutes advantages such as little, sets up the dampproof course on the side that recycled paper ply suppression has the three-dimensional decorative pattern of 3D, can effectively protect the three-dimensional decorative pattern of 3D.

In the inkless document seal with 3D deep embossing, the information displayed by the 3D solid pattern includes figures, characters and/or letters, letters and/or numbers and two-dimensional codes; braille may also be provided.

In the inkless document seal with 3D deep embossing, the depth of the 3D stereoscopic pattern is 1mm or more. Preferably 1.5mm or more, more preferably 2mm or more. The depth of the 3D stereoscopic patterns is limited, and the problem of damage caused by the fact that the 3D stereoscopic patterns are too thin when the regenerated paper is pressed is avoided.

In the inkless document seal with 3D deep embossing, the gram weight of the regenerated paper layer is 170-250 g/m²The tightness is 0.58-0.9 g/cm³. And the moisture content of the regenerated paper layer is 6-10%, the smoothness is more than 5s, the transverse expansion rate/longitudinal expansion rate of the regenerated 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.

In the inkless document seal with 3D deep embossing, the moisture barrier layer includes a polyvinyl alcohol coating layer and a transparent waterproof layer sequentially disposed on the recycled paper.

The utility model discloses in, polyvinyl alcohol coating and transparent waterproof layer all have good dampproofing effect, and wherein, the polyvinyl alcohol coating not only has stronger adhesive force with the fibre on the regeneration paper layer, and film forming is good moreover, film forming strength is high, when giving the adhesive strength between good moisture resistance of regeneration paper, reinforcing dampproof course and the regeneration paper layer, can also improve the intensity of regeneration paper. The transparent waterproof layer can endow the recycled paper with good moisture resistance, and simultaneously can improve the surface smoothness and the attractiveness of the moisture-proof recycled paper.

In one of the above inkless document seals having 3D deep embossing, the polyvinyl alcohol coating is a biodegradable polyvinyl alcohol coating. The biodegradable polyvinyl alcohol can be completely degraded into carbon dioxide and water, and is more environment-friendly.

The thickness of the polyvinyl alcohol coating is 1-3 microns.

In the inkless document seal with 3D deep embossing, the transparent waterproof layer is a nano waterproof coating.

The nano waterproof coating is formed by spraying nano waterproof paint prepared from inorganic silicate, active silicon dioxide, a catalyst and other functional additives on the surface of a substrate at a high speed through a nano technology, so that the bionic construction of a lotus leaf-like surface grading rough mechanism is realized, and the moisture-proof recycled paper is endowed with excellent moisture resistance.

The thickness of the transparent waterproof layer is 1-3 microns.

In the inkless document seal with 3D deep embossing, one edge of the front cover is provided with a sealing tongue, and the other three edges of the front cover are connected with the back cover through folding sealing edges. The folding edge sealing has two forms of folding and unfolding, and is in a folding state when not used or less files need to be bagged; when more files need to be contained, the folding sealing edge can be unfolded, so that the containing space in the file seal is enlarged.

In the inkless document seal with 3D deep embossing described above, a plurality of reinforcing strips are provided between the front and back covers across each of the folded seals. When the folding seal edge is in an unfolding state, the reinforcing strip is also tightened to reinforce and protect the folding seal edge and ensure that the file seal cannot be damaged.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

(1) in the utility model, the recycled paper adopted by the front cover and the back cover is improved, so that larger tangential stress can be borne, and the paper breakage caused by impressing 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;

(2) the utility model discloses in, polyvinyl alcohol coating and transparent waterproof layer all have good dampproofing effect, and wherein, the polyvinyl alcohol coating not only has stronger adhesive force with the fibre on the regeneration paper layer, and film forming is good moreover, film forming strength is high, when giving the bonding strength between good moisture resistance of regeneration paper, reinforcing dampproof course (polyvinyl alcohol coating and transparent waterproof layer promptly) and the regeneration paper layer, can also improve the intensity of regeneration paper. The transparent waterproof layer can endow the recycled paper with good moisture resistance, and simultaneously can improve the surface smoothness and the attractiveness of the moisture-proof recycled paper.

(3) In the utility model, the front cover is connected with the back cover through the folding edge sealing; the folding edge sealing has two forms of folding and unfolding, and is in a folding state when not used or less files need to be bagged; when more files need to be contained, the folding sealing edge can be unfolded, so that the containing space in the file seal is enlarged.

(4) In the utility model, a plurality of reinforcing strips spanning each sealing edge are arranged between the front cover and the back cover; when the folding seal edge is in an unfolding state, the reinforcing strip is also tightened to reinforce and protect the folding seal edge and ensure that the file seal cannot be damaged.

Drawings

Fig. 1 is a schematic structural view of an inkless document seal with 3D deep embossing according to the present invention;

fig. 2 is a state diagram of the use of the inkless document seal with 3D deep embossing of the present invention;

fig. 3 is a cross-sectional view of an inkless document seal with 3D deep embossing of the present invention.

Detailed Description

The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.

Example 1

As shown in fig. 1, the inkless document cover with 3D deep embossing of the present embodiment includes a front cover 10 and a back cover 20, wherein 3D patterns are pressed on the front cover 10, the 3D patterns display information including graphics 100, letters and/or letters 101, letters and/or numbers 102, two-dimensional codes 103, and braille 104 may be further provided. Similarly, 3D patterns may be embossed on the back cover 20 as needed to display desired information. The depth of the 3D stereoscopic pattern is more than 2 mm. The depth of the 3D stereoscopic patterns is limited, and the problem of damage caused by the fact that the 3D stereoscopic patterns are too thin when the regenerated paper is pressed is avoided.

As shown in FIGS. 1 and 2, one edge of the front cover 10 is provided with a sealing flap 30, and the remaining three edges of the front cover 10 are connected to the back cover 20 by a hem seal 40. The foldable seal 40 has two configurations, a folded configuration (as in fig. 1) and an unfolded configuration (as in fig. 2), and when not in use or when fewer documents need to be bagged, the foldable seal 40 is in the folded configuration; when more documents need to be accommodated, the foldable sealing edge 40 can be unfolded, so that the accommodating space in the document envelope is enlarged.

As can be seen from fig. 1 and 2, a plurality of reinforcing strips 50 spanning the seal edges are disposed between the front cover 10 and the back cover 20, both ends of the reinforcing strips 50 are fixedly bonded to the front cover 10 and the back cover 20, respectively, and when the foldable seal edge 40 is in the unfolded state, the reinforcing strips 50 are also tightened to reinforce and protect the foldable seal edge 40 and ensure that the document seal is not damaged.

As shown in fig. 3, in the present embodiment, each of the front cover 10 and the back cover 20 includes a recycled paper layer 1, and a moisture-proof layer 2 is disposed on one side of the recycled paper layer 1 on which a 3D stereoscopic pattern is pressed.

In the regenerated paper layer 1 of the embodiment, the gram weight of the regenerated paper is 170-250 g/m²The tightness is 0.58-0.9 g/cm³Moisture content is 6-10%, smoothness is more than 5s, and transverse expansion and contraction rate of recycled paperLongitudinal expansion and contraction rate is more than 2, and transverse expansion and contraction rate is more than 5%; so as to press 3D patterns on the recycled paper. The depth of the 3D stereoscopic pattern is more than 2 mm. The depth of the 3D stereoscopic patterns is limited, and the problem of damage caused by the fact that the 3D stereoscopic patterns are too thin when the regenerated paper is pressed is avoided.

In this embodiment, the moisture-proof layer 2 includes a polyvinyl alcohol coating layer 21 and a transparent waterproof layer 22 sequentially disposed on the outer side surface of the regenerated paper layer 1.

The polyvinyl alcohol coating 21 is formed by biodegradable polyvinyl alcohol, and the biodegradable polyvinyl alcohol can be completely degraded into carbon dioxide and water, so that the coating is more environment-friendly. The thickness of the polyvinyl alcohol coating 21 can be set between 1-3 microns. The polyvinyl alcohol coating 21 has strong adhesive force with the fiber on the regenerated paper layer 1, good film forming property and high film forming strength, and can improve the strength of the regenerated paper while endowing the regenerated paper with good moisture resistance and enhancing the adhesive strength between the moisture-proof layer and the regenerated paper layer 1.

The transparent waterproof layer 22 can improve the surface smoothness and the aesthetic degree of the moisture-proof recycled paper while endowing the recycled paper with good moisture-proof performance. The transparent waterproof layer 22 can be a nano waterproof coating formed by spraying a nano waterproof coating prepared from inorganic silicate, active silicon dioxide, a catalyst and other functional additives on the surface of the polyvinyl alcohol coating 21 at a high speed by a nano technology, so that the bionic construction of a lotus leaf-like surface grading and roughening mechanism is realized, and the moisture-proof recycled paper has excellent moisture resistance. The thickness of the transparent waterproof layer 22 may also be set between 1-3 microns.

Claims

1. The inkless document seal with 3D deep embossing is characterized by comprising a front cover (10) and a back cover (20), wherein 3D solid patterns are pressed on at least one surface of the front cover (10) and the back cover (20); the front cover (10) and the back cover (20) both comprise a regenerated paper layer (1), and at least the side surface of the regenerated paper layer (1) pressed with 3D stereoscopic patterns is provided with a moisture-proof layer (2).

2. The inkless document seal with 3D deep embossing of claim 1, wherein the 3D relief displays information including graphics, text and/or letters, letters and/or numbers, and two-dimensional codes.

3. The inkless document seal with 3D deep embossings as claimed in claim 1, wherein said 3D relief has a depth of 1mm or more.

4. The inkless document seal with 3D deep embossing according to claim 1, characterized in that the grammage of the recycled paper layer (1) is 170-250 g/m²The tightness is 0.58-0.9 g/cm³。

5. The inkless document seal with 3D deep embossing according to any one of claims 1 to 4, characterized in that the moisture barrier (2) comprises a polyvinyl alcohol coating (21) and a transparent water barrier (22) sequentially arranged on the recycled paper layer (1).

6. The inkless document seal with 3D deep embossing according to claim 5, wherein the polyvinyl alcohol coating (21) is a biodegradable polyvinyl alcohol coating.

7. The inkless document seal with 3D deep embossing according to claim 5, wherein the transparent waterproof layer (22) is a nano waterproof coating.

8. The inkless document seal with 3D deep embossing of any one of claims 1 to 4, wherein one of the edges of the front cover (10) is provided with a flap (30), and the remaining three edges of the front cover (10) are connected to the back cover (20) by a hem seal (40).

9. The inkless document seal with 3D deep embossing of claim 1, wherein a plurality of reinforcing strips (50) are provided across each hem seal (40) between the front cover (10) and the back cover (20).

10. The inkless document cover with 3D deep embossing of claim 5, wherein one edge of the front cover (10) has a flap (30), and the remaining three edges of the front cover (10) are connected to the back cover (20) by a hem seal (40).