CN108589427A - A kind of high-performance impact resisting corrugated board - Google Patents
A kind of high-performance impact resisting corrugated board Download PDFInfo
- Publication number
- CN108589427A CN108589427A CN201810374633.7A CN201810374633A CN108589427A CN 108589427 A CN108589427 A CN 108589427A CN 201810374633 A CN201810374633 A CN 201810374633A CN 108589427 A CN108589427 A CN 108589427A
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- CN
- China
- Prior art keywords
- corrugated board
- layer
- cambered surface
- wave groove
- center line
- Prior art date
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Links
- 239000010410 layer Substances 0.000 claims abstract description 51
- 239000002344 surface layer Substances 0.000 claims abstract description 17
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 239000010457 zeolite Substances 0.000 claims abstract description 6
- 230000000737 periodic effect Effects 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 12
- 230000035939 shock Effects 0.000 abstract description 5
- 239000003063 flame retardant Substances 0.000 abstract description 3
- 239000011111 cardboard Substances 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 241001442589 Convoluta Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
Classifications
-
- 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
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
-
- 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
- B32B29/08—Corrugated paper or cardboard
-
- 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
- B32B3/085—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 spaced apart pieces on the surface of a layer
-
- 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
- D21H27/10—Packing paper
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/558—Impact strength, toughness
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/73—Hydrophobic
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a kind of high-performance impact resisting corrugated board, which includes central core, the internal surface layer that is compound in central core both sides, the first surge layer for being compound in two inner face layer surfaces respectively and the second surge layer, the first outer coversheet being compound on the outside of the first surge layer and the second outer coversheet for being compound in the second ripple layer surface；Wherein, it gathers on central core and is provided with the vertical mesh in center layer surface, zeolite powder has been filled in the mesh, there is very high shock resistance, respectively to bend resistance, anti-shear performance, and have certain moisture resistance, fire-retardant performance.
Description
Technical field
The present invention relates to a kind of corrugated board, more particularly to a kind of high-performance impact resisting corrugated board.
Background technology
Corrugated board is processed by various paper pulp, fiber is interweaved the ground paper page formed.Currently, corrugation in the market
Cardboard, it includes the top plate, interlayer and bottom plate set gradually.
But the comprehensive performance of shock resistance, the bend resistance of existing corrugated board etc. is not high, for the packet of some precision instruments
It is bad to fill protecting effect.
Invention content
The object of the present invention is to provide a kind of high-performance impact resisting corrugated board, which solve the shock resistance of corrugated board,
The not high problem of the comprehensive performance of bend resistance etc..
The present invention above-mentioned technical purpose technical scheme is that：
A kind of high-performance impact resisting corrugated board, including central core, be compound in central core both sides internal surface layer, be compound in two respectively
The first surge layer and the second surge layer of a inner face layer surface, the first outer coversheet being compound on the outside of the first surge layer, Yi Jifu
Together in the second outer coversheet of the second ripple layer surface；Wherein, it gathers on central core and is provided with the vertical mesh in center layer surface,
It is filled with zeolite powder in the mesh.
Using the above scheme, mesh-structured that central core will be made to have certain deformation behavior along in-plane, but
Have good impact resistance and reset capability in vertical in-plane, and after two internal surface layer covering bondings of hand, it is each
It will be removed to free deformation characteristic, and since the limitation of lines train of thought, toughness and structural strength also further increase；Its
In zeolite powder on the one hand can further increase paper board strength, on the other hand, have certain moisture absorption, inhale ammonia performance, can be with
Cardboard drying is kept, and certain moisture is stored while dry, plays certain fire retardation, and in production process
In heated condition is in due to each layer paper, zeolite powder can be dried naturally；Then two surge layers then play certain delay
Punching acts on, and enhances the impact resistance of corrugated board entirety, and the extension direction of surge layer and central core are perpendicular, because its is different
Tropism will also increase on bending resistance, anti-shear performance；To sum up, by the mutual cooperation between the above level, corrugated board has
Very high shock resistance, bend resistance, anti-shear performance, and have certain moisture resistance, fire-retardant performance.
Further preferably：The mesh includes densely covered hexagonal hole and is uniformly distributed circumferentially six in hexagon
A side it is tri-angle-holed, wherein with diagonal opposite between adjacent hexagonal hole.
Using the above scheme, hexagon has very high structural stability, once but its certain combination edge generate it is broken
Its bad structural stability will decline rapidly, can be in the free trimming of corrugated board in such a way that hexagon is equipped with triangle
Situation under, center once still can keep very good structural stability and structural strength.
Further preferably：First surge layer is equipped with the wave groove in periodic intervals, first wave groove
Center line it is oblique in the end face of corrugated board.
Using the above scheme, the ripple struction of the first surge layer have a cushion performance and holding structure corrugated board have compared with
High intensity, and its oblique structure then greatly enhances bend resistance, the anti-shear ability of corrugated board along the horizontal or vertical.
Further preferably：Second surge layer is equipped with the wave groove in periodic intervals, second wave groove
Center line it is oblique in the end face of corrugated board, the center line in the direction and the first wave groove of the center line of second wave groove
Direction it is different.
Using the above scheme, the second surge layer equally increases anti-shear ability, and the combination of two surge layers makes corrugation
Cardboard has extraordinary respectively to bend resistance, anti-shear performance；And enhance the structural strength of corrugated board.
Further preferably：The center line of first wave groove and the center line of the second wave groove are mutually perpendicular to.
Using the above scheme so that corrugated board has more uniform respectively to bend resistance, anti-shear ability.
Further preferably：The center line of first wave groove intersects with the end face of corrugated board in 45 °.
Using the above scheme, corrugated board be it is rectangular or close to it is rectangular when, paperboard surface receive be impact will
It is uniformly spread around along 45 ° of oblique lines, reduces the injury that impact generates, greatly enhance the impact resistance of corrugated board.
Further preferably：First surge layer include between the first outer coversheet and internal surface layer median plane it is symmetrical and
In the first ripple unit of periodic arrangement, the first ripple unit include the flat portion in top, two be connected in the of the flat portion both sides in top
One cambered surface, the transition cambered surface for connecting the first cambered surface and the second cambered surface for being connected to transition cambered surface, the wherein both ends of transition cambered surface
Tangent with the first cambered surface and the second cambered surface respectively, the center line of first cambered surface and the second cambered surface is respectively positioned on the first ripple unit
In formed wave groove.
Using the above scheme, pushing up flat portion can preferably be attached between the first outer coversheet and internal surface layer, keep preferable
Adhesive strength and structural stability, and the first cambered surface and the second cambered surface are evagination state, the transition cambered surface of mellow and full transition is same
Sample is in evagination state, and combination makes the first surge layer have preferable elasticity, i.e. impact resistance, and certain being compressed to
First cambered surface of latter two the first adjacent ripple unit of degree can be abutted mutually, structural strength transient rise, and significant increase is high
The ability of load impact.
Further preferably：Median plane of the center line of second cambered surface between the first outer coversheet and internal surface layer
On.
Using the above scheme so that the first adjacent ripple unit is directly mutually contradicted in antimere, stress when
Time can also carry out a degree of being flexing to compensate for stress.
Further preferably：Second surge layer include between the second outer coversheet and internal surface layer median plane it is symmetrical and
Structure and the second ripple unit in periodic arrangement, the second ripple unit is identical as the structure of the first ripple unit.
Using the above scheme, the ectonexine of corrugated board is provided with higher structural strength.
Further preferably：Second surge layer includes the second ripple unit in periodic arrangement, second wave
Line unit includes the flat portion in bottom, two lower curved parts for being connected in the flat portion in bottom, is connected in the convergence part of lower curved part, is connected in the upper curved part of convergence part
And it is connected in the upper flat portion of upper curved part, the wherein both ends of convergence part are tangent with upper curved part and lower curved part respectively, and upper curved part is under
The center line of pars convoluta is respectively positioned on the second ripple unit and is formed by wave groove, and the upper flat portion is located at the second ripple unit institute shape
At wave groove outside.
Using the above scheme, relative to front one kind, hardness is declined, but elasticity increased, that is, is had certain
Expansion and the ability shunk, on cushion performance also relatively preferably；It in the actual use process can be by elasticity preferable second
Product in inner face guard box is done in the side of surge layer, and first surge layer in outside then provides preferable outer protective.
In conclusion the invention has the advantages that：
By the mutual cooperation between level, corrugated board has very high shock resistance, respectively to bend resistance, anti-shear performance,
And have certain moisture resistance, fire-retardant performance.
Description of the drawings
Fig. 1 is the structural schematic diagram of the corrugated board of embodiment 1；
Fig. 2 is the structure chart of the central core of embodiment 1；
Fig. 3 is the layer layout viewing of the corrugated board of embodiment 1；
Fig. 4 is the layer layout viewing of the corrugated board of embodiment 2.
In figure, 1, central core；2, internal surface layer；3, the first surge layer；4, the first outer coversheet；5, the second surge layer；6,
Two outer coversheets；11, hexagonal hole；12, tri-angle-holed；31, flat portion is pushed up；32, the first cambered surface；33, transition cambered surface；34, the second arc
Face；35, wave groove；51, the flat portion in bottom；52, lower curved part；53, convergence part；54, upper curved part；55, upper flat portion；.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the protection domain of invention.
Embodiment 1：A kind of high-performance impact resisting corrugated board as depicted in figs. 1 and 2, including central core 1, is compound in
The internal surface layer 2 of 1 both sides of central layer, the first surge layer 3 for being compound in two 2 surfaces of internal surface layer respectively and the second surge layer 5 are compound in
The first outer coversheet 4 on the outside of first surge layer and the second outer coversheet 6 for being compound in 5 surface of the second surge layer；Wherein, center
It gathers on layer 1 and is provided with the vertical mesh in 1 surface of central core, zeolite powder has been filled in mesh.Mesh includes densely covered
Hexagonal hole 11 and tri-angle-holed 12 in six sides of hexagon are uniformly distributed circumferentially, wherein adjacent hexagonal hole 11
Between with diagonal opposite.
With reference to Fig. 3, the center line of the first wave groove 35 intersects with the end face of corrugated board in 45 °.First surge layer includes
The first symmetrical and in periodic arrangement ripple unit of median plane and corresponding shape between the first outer coversheet 4 and internal surface layer 2
At the wave groove 35 in periodic intervals, the center line of the first wave groove 35 is oblique in the end face of corrugated board.First ripple
Unit includes that flat 31, two, the portion in top is connected in the first cambered surface 32 for pushing up flat 31 both sides of portion, the transition cambered surface 33 for connecting the first cambered surface 32
And be connected to the second cambered surface 34 of transition cambered surface 33, wherein the both ends of transition cambered surface 33 respectively with the first cambered surface 32 and the second arc
Face 34 is tangent, and the center line of the first cambered surface 32 and the second cambered surface 34 is respectively positioned in the formed wave groove of the first ripple unit 35.The
The center line of two cambered surfaces 34 is on the median plane between the first outer coversheet 4 and internal surface layer 2.
Second surge layer 5 is equipped with the wave groove 35 in periodic intervals, the center line of the second wave groove 35 it is oblique in watt
The center line of the end face of corrugated paper board, the center line of the first wave groove 35 and the second wave groove 35 is mutually perpendicular to.Second surge layer 5 is wrapped
Include symmetrical between the second outer coversheet 6 and internal surface layer 2 median plane and structure and the second ripple unit in periodic arrangement, the
Two ripple units are identical as the structure of the first ripple unit.
Embodiment 2：As shown in figure 4, the difference is that, the second surge layer 5 includes in periodically row with embodiment one
Second ripple unit of cloth, the second ripple unit include that 51, two, the flat portion in bottom is connected in the lower curved part 52 in the flat portion in bottom 51, is connected in lower song
The convergence part 53 in portion 52, the upper curved part 54 for being connected in convergence part 53 and the upper flat portion 55 for being connected in upper curved part 54, wherein convergence part 53
Both ends it is tangent with upper curved part 54 and lower curved part 52 respectively, the center line of upper curved part 54 and lower curved part 52 is respectively positioned on the second ripple
Unit is formed by wave groove 35, and upper flat portion 55 is located at the second ripple unit and is formed by outside wave groove 35.
Claims (10)
1. a kind of high-performance impact resisting corrugated board, it is characterized in that：Including central core (1), it is compound in the interior of central core (1) both sides
Face layer (2), the first surge layer (3) for being compound in two internal surface layer (2) surfaces respectively and the second surge layer (5) are compound in first
The first outer coversheet (4) on the outside of surge layer and the second outer coversheet (6) for being compound in the second surge layer (5) surface；Wherein, in
It gathers in central layer (1) and is provided with the vertical mesh in central core (1) surface, zeolite powder has been filled in the mesh.
2. a kind of high-performance impact resisting corrugated board according to claim 1, it is characterized in that：The mesh includes densely covered
It hexagonal hole (11) and is uniformly distributed circumferentially in tri-angle-holed (12) on six sides of hexagon, wherein adjacent hexagon
With diagonal opposite between hole (11).
3. a kind of high-performance impact resisting corrugated board according to claim 1, it is characterized in that：It is set in first surge layer
There are the wave groove (35) in periodic intervals, the center line of first wave groove (35) oblique in the end face of corrugated board.
4. a kind of high-performance impact resisting corrugated board according to claim 3, it is characterized in that：Second surge layer (5)
It is equipped with the wave groove (35) in periodic intervals, the center line of second wave groove (35) is oblique in the end of corrugated board
The direction in face, the center line of second wave groove (35) is different from the direction of center line of the first wave groove (35).
5. a kind of high-performance impact resisting corrugated board according to claim 4, it is characterized in that：First wave groove (35)
Center line and the center line of the second wave groove (35) be mutually perpendicular to.
6. a kind of high-performance impact resisting corrugated board according to claim 5, it is characterized in that：First wave groove (35)
Center line intersect in 45 ° with the end face of corrugated board.
7. a kind of high-performance impact resisting corrugated board according to claim 1, it is characterized in that：First surge layer includes
Median plane is symmetrical between the first outer coversheet (4) and internal surface layer (2) and the first ripple unit in periodic arrangement, and described the
One ripple unit is connected in the first cambered surface (32) for pushing up flat portion (31) both sides, the first cambered surface of connection including the flat portion (31) in top, two
(32) transition cambered surface (33) and the second cambered surface (34) for being connected to transition cambered surface (33), the wherein both ends of transition cambered surface (33)
Tangent with the first cambered surface (32) and the second cambered surface (34) respectively, the center line of first cambered surface (32) and the second cambered surface (34) is equal
In the first formed wave groove of ripple unit (35).
8. a kind of high-performance impact resisting corrugated board according to claim 7, it is characterized in that：Second cambered surface (34)
Center line is on the median plane between the first outer coversheet (4) and internal surface layer (2).
9. a kind of high-performance impact resisting corrugated board according to claim 8, it is characterized in that：Second surge layer (5)
Include that median plane is symmetrical and structure and the second ripple in periodic arrangement between the second outer coversheet (6) and internal surface layer (2)
Unit, the second ripple unit are identical as the structure of the first ripple unit.
10. a kind of high-performance impact resisting corrugated board according to claim 8, it is characterized in that：Second surge layer (5)
Include the second ripple unit in periodic arrangement, the second ripple unit include the flat portion in bottom (51), two be connected in the flat portion in bottom
(51) lower curved part (52), the convergence part (53) for being connected in lower curved part (52), the upper curved part (54) for being connected in convergence part (53) and even
In the upper flat portion (55) of upper curved part (54), wherein the both ends of convergence part (53) respectively with upper curved part (54) and lower curved part (52) phase
It cuts, the center line of upper curved part (54) and lower curved part (52) is respectively positioned on the second ripple unit and is formed by wave groove (35), described
Upper flat portion (55) is located at the second ripple unit and is formed by wave groove (35) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374633.7A CN108589427B (en) | 2018-04-24 | 2018-04-24 | High-performance impact-resistant corrugated board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810374633.7A CN108589427B (en) | 2018-04-24 | 2018-04-24 | High-performance impact-resistant corrugated board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108589427A true CN108589427A (en) | 2018-09-28 |
| CN108589427B CN108589427B (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810374633.7A Active CN108589427B (en) | 2018-04-24 | 2018-04-24 | High-performance impact-resistant corrugated board |
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| Country | Link |
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| CN (1) | CN108589427B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110525628A (en) * | 2019-07-23 | 2019-12-03 | 北京交通大学 | A kind of novel born of the same parents' lattice cellular cushion device improving multidirectional carrying energy absorbing efficiency |
| LU500847B1 (en) | 2021-11-11 | 2023-05-11 | Kolicevo Karton D O O | Use of hydrophilic zeolites in the production of cellulose-based (cardboard) packaging |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110525628A (en) * | 2019-07-23 | 2019-12-03 | 北京交通大学 | A kind of novel born of the same parents' lattice cellular cushion device improving multidirectional carrying energy absorbing efficiency |
| LU500847B1 (en) | 2021-11-11 | 2023-05-11 | Kolicevo Karton D O O | Use of hydrophilic zeolites in the production of cellulose-based (cardboard) packaging |
| EP4180573A1 (en) | 2021-11-11 | 2023-05-17 | Kemijski Institut | Use of zeolites with low molar ratio of si to ai in the production of cellulose-based (cardboard) packaging |
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| CN108589427B (en) | 2021-04-13 |
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Effective date of registration: 20230626 Address after: 317525 Ocean City Industrial Zone, Dashi Town, Wenling City, Taizhou, Zhejiang Patentee after: SENLIN PACKAGING Co.,Ltd. Address before: 317500 the north part of the East New Area, the east industrial cluster area, Wenling City, Taizhou City, Zhejiang Province Patentee before: WENLING FOREST PACKING CO.,LTD. |
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