CN113320230A - Honeycomb paperboard with holes on honeycomb wall surface of sandwich layer - Google Patents
Honeycomb paperboard with holes on honeycomb wall surface of sandwich layer Download PDFInfo
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- CN113320230A CN113320230A CN202110376141.3A CN202110376141A CN113320230A CN 113320230 A CN113320230 A CN 113320230A CN 202110376141 A CN202110376141 A CN 202110376141A CN 113320230 A CN113320230 A CN 113320230A
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- honeycomb
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- 239000011087 paperboard Substances 0.000 title claims abstract description 72
- 241000264877 Hippospongia communis Species 0.000 claims abstract description 216
- 239000000123 paper Substances 0.000 claims abstract description 96
- 239000002274 desiccant Substances 0.000 claims abstract description 56
- 238000001035 drying Methods 0.000 claims abstract description 36
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 63
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 42
- 239000013527 degreasing agent Substances 0.000 claims description 30
- 238000005237 degreasing agent Methods 0.000 claims description 30
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 28
- 239000007787 solid Substances 0.000 claims description 28
- 235000010216 calcium carbonate Nutrition 0.000 claims description 21
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 21
- 238000005303 weighing Methods 0.000 claims description 21
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 17
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 17
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 17
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 17
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 14
- 235000017550 sodium carbonate Nutrition 0.000 claims description 14
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 239000000725 suspension Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000227 grinding Methods 0.000 claims description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000002270 dispersing agent Substances 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 230000001376 precipitating effect Effects 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 5
- 229910020335 Na3 PO4.12H2 O Inorganic materials 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 44
- 239000003292 glue Substances 0.000 description 12
- 239000004519 grease Substances 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 230000002708 enhancing effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Images
Classifications
-
- 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 form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- 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 form; Layered products 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 form; Layered products 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 form; Layered products 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
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- 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
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- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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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
- D21H27/10—Packing paper
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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
- D21H27/30—Multi-ply
- D21H27/40—Multi-ply at least one of the sheets being non-planar, e.g. crêped
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- 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
Abstract
The invention relates to the technical field of honeycomb paperboards, and discloses a honeycomb paperboard with holes on the honeycomb wall surface of a sandwich layer, which comprises honeycomb core paper, surface paper arranged on the upper part and the lower part of the honeycomb core paper, a honeycomb arranged in the honeycomb core paper, bonding layers arranged on the upper side wall and the lower side wall of the honeycomb, and a drying agent arranged between the two bonding layers. According to the invention, by adding the drying agent, moisture generated during drying of the honeycomb paperboard can be absorbed and can not be adsorbed by the honeycomb paperboard, the powdery drying agent is distributed on the inner walls of the upper side and the lower side of the honeycomb through the bonding layers, when the honeycomb paperboard is dried, moisture in the honeycomb core paper can be in the honeycomb, and the honeycomb communication of the drying holes can be realized, so that the moisture can flow in different honeycombs, and the moisture is absorbed immediately when contacting with the drying agent, thereby improving the drying efficiency of the honeycomb paperboard by 10-20%.
Description
Technical Field
The invention relates to the technical field of honeycomb paperboards, in particular to a honeycomb paperboard with holes on the honeycomb wall surface of a sandwich layer.
Background
The honeycomb paperboard is a light high-strength composite material formed by bonding an upper surface paper and a lower surface paper through a bonding agent to form a honeycomb paper core, and is a typical case for the application of human bionics research. The honeycomb paperboard has outstanding compression resistance and bending resistance, so the honeycomb paperboard is widely applied to the aspects of packaging, structure forming and the like.
At present, all honeycomb paperboard production lines have the processing procedure that the moisture sealed and stored in sealed compartments can not be thoroughly dried, and after the production line is finished, the honeycomb paperboard must be subjected to long-time natural environment ventilation and airing, so the publication number CN110524964A discloses a honeycomb paperboard with a sandwich layer honeycomb wall surface with holes, which comprises two pieces of surface paper which are arranged up and down, wherein the honeycomb core paper is arranged between the two pieces of surface paper, the honeycomb core paper is provided with a plurality of hollow three-dimensional regular hexagonal honeycombs, and the honeycomb side wall is provided with drying holes.
The existing honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer has the following defects: although the drying holes are arranged, when the honeycomb paperboard is dried, moisture is sequentially discharged through the drying holes in the honeycomb holes, and if the moisture is not uniformly distributed in the drying heat, the moisture in the low-temperature area is liquefied again and attached to the honeycomb paperboard, so that the compressive strength of the honeycomb paperboard in the later period is influenced.
Disclosure of Invention
The invention aims to provide a honeycomb paperboard with open holes on the honeycomb wall surface of a sandwich layer, through adding a drying agent, moisture generated during drying of the honeycomb paperboard can be absorbed, so that the water can not be adsorbed by the honeycomb paperboard any more, the honeycomb communication can be realized by the drying holes, the water can flow in different honeycombs, the water can be absorbed immediately when contacting with a drying agent, thereby improving the drying efficiency of the honeycomb paperboard by 10-20 percent, enhancing the strength of the honeycomb paperboard by more than 10 percent, aiming at solving the problems that the existing honeycomb paperboard with open holes on the honeycomb wall surface of the sandwich layer in the prior art is provided with drying holes, however, when the honeycomb paperboard is dried, the water is discharged through the drying holes in the honeycomb holes in sequence, and if the drying heat is not uniformly distributed, the moisture in the low temperature zone can be liquefied again and attached to the honeycomb paperboard, thereby influencing the problem of compressive strength when later stage honeycomb paperboard is used.
The honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer comprises honeycomb core paper, surface paper is arranged on the upper portion and the lower portion of the honeycomb core paper, honeycombs are arranged in the honeycomb core paper, bonding layers are arranged on the upper side wall and the lower side wall of each honeycomb, and drying agents are arranged between the two bonding layers.
Further, all be provided with a plurality of drying holes on every looks spaced lateral wall of honeycomb, drying hole is vertical state and arranges, and its concrete expression is hexahedron to the honeycomb, and wherein there are trilateral drying holes that are provided with. The arrangement of the drying holes ensures that at least two sides are in communication with other honeycombs.
Furthermore, adhesive glue is coated on the opposite sides of the two surface papers, the honeycomb core paper is respectively bonded with the two surface papers, and the adhesive glue in the honeycomb forms a bonding layer.
Further, the drying agent comprises the following components in parts by weight: 20-30 parts of anhydrous calcium chloride, 10-15 parts of silicic acid, 5-10 parts of degreasing agent and 3-8 parts of dispersing agent.
Further, the degreasing agent comprises the following components in parts by weight: the coating comprises, by weight, 30-40 parts of NaOH, 20-30 parts of Na2SiO 3.5H 2O 20, 310-15 parts of CaCO, 15-20 parts of Na3PO 4.12H 2O 15 and 320-30 parts of Na2 CO.
Further, the preparation process of the degreasing agent specifically comprises the following steps:
s1: weighing CaCO3 solid according to the weight part, and grinding the CaCO3 solid to the particle size of 200-300 meshes by a grinding machine;
s2: sequentially weighing NaOH, Na2SiO3 & 5H2O and Na3PO4 & 12H2O according to the weight parts, respectively pouring the NaOH, the Na2SiO3 & 5H2O and the Na3PO4 & 12H2O into CaCO3 solid obtained from S1, and mechanically stirring for 15-20min to obtain a suspension A;
s3: then weighing Na2CO3 solution, continuously dripping into the suspension A by adopting a silica gel head dropper, stirring while dripping, wherein the dripping time of the Na2CO3 solution is 5-10min, and the rotating speed of a stirrer is 500-1000 r/min;
s4: and heating and evaporating the obtained mixed solution, and precipitating solid powder after water evaporation to obtain the degreasing agent.
Further, the order of putting the drying agent is as follows: firstly, one side of honeycomb core paper is bonded with surface paper, then drying agents are scattered into the honeycomb from the other side after bonding, it is ensured that each honeycomb is filled with the drying agents, then the other side of the honeycomb core paper is bonded with the surface paper, after bonding, the honeycomb paper boards are vibrated up and down, and the drying agents can be adhered to the upper bonding layer and the lower bonding layer.
Compared with the prior art, the honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer, provided by the invention, has the following beneficial effects:
1. by adding the drying agent, moisture generated by the honeycomb paperboard during drying can be absorbed and can not be absorbed by the honeycomb paperboard any more, the powdery drying agent is distributed on the inner walls of the upper side and the lower side of the honeycomb through the bonding layers, when the honeycomb paperboard is dried, the moisture in the honeycomb core paper can be in the honeycomb, and the honeycomb communication of drying holes can be realized, so that the moisture can flow in different honeycombs, and the moisture is absorbed immediately when contacting the drying agent, thereby improving the drying efficiency of the honeycomb paperboard by 10-20%, and enhancing the strength of the honeycomb paperboard by more than 10%;
2. the degreasing agent is arranged in the drying agent, so that grease on the outer surface layer of the honeycomb paperboard can be removed, and the influence of grease on the honeycomb paperboard is reduced, so that the dried honeycomb paperboard is higher in hardness and is not easy to bend.
Drawings
FIG. 1 is a cross-sectional side view of a honeycomb paperboard with open cells in the honeycomb wall of a sandwich layer according to the present invention;
FIG. 2 is an enlarged view of the structure of the area A in FIG. 1;
fig. 3 is a top view of the honeycomb paper in the honeycomb paperboard with open cells on the honeycomb wall of the sandwich layer according to the present invention.
In the figure: 1-surface paper, 2-honeycomb core paper, 3-honeycomb, 4-drying holes, 5-drying agent and 6-bonding layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following describes the implementation of the present invention in detail with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
It should be noted that the honeycomb core paper 2 used in the following embodiments is a reinforced honeycomb core paper, and the reinforced honeycomb core paper mainly has the strength problem of the honeycomb paperboard when in use without influence on the premise of opening the honeycomb holes, and the reinforced honeycomb core paper has better impact strength, which is beneficial to the use of the honeycomb paperboard.
Example 1
Referring to fig. 1-3, the honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer comprises honeycomb core paper 2 and surface paper 1 arranged on the upper side and the lower side of the honeycomb core paper 2, wherein honeycombs 3 are arranged in the honeycomb core paper 2, bonding layers 6 are arranged on the upper side wall and the lower side wall of each honeycomb 3, a drying agent 5 is arranged between the two bonding layers 6, a plurality of drying holes 4 are arranged on the side walls of each interval of the honeycombs 3, and the drying holes 4 are arranged in a vertical state.
In this embodiment, the opposite sides of the two face papers 1 are coated with adhesive glue, the honeycomb core paper 3 is respectively adhered to the two face papers 1, and the adhesive glue in the honeycomb 3 forms the adhesive layer 6.
The drying agent comprises the following components in parts by weight: 20 parts of anhydrous calcium chloride, 10 parts of silicic acid, 5 parts of degreasing agent and 3 parts of dispersing agent, wherein the degreasing agent comprises the following components in parts by weight: 30 parts of NaOH, 20 parts of Na2SiO3 & 5H2O 20, 310 parts of CaCO, 15 parts of Na3PO4 & 12H2O 15 and 320 parts of Na2 CO.
The preparation process of the degreasing agent specifically comprises the following steps:
s1: weighing CaCO3 solid according to the weight part, and grinding the CaCO3 solid to the particle size of 200 meshes by a pulverizer;
s2: sequentially weighing NaOH, Na2SiO3 & 5H2O and Na3PO4 & 12H2O according to the weight parts, respectively pouring the NaOH, the Na2SiO3 & 5H2O and the Na3PO4 & 12H2O into CaCO3 solid obtained from S1, and mechanically stirring for 15min to obtain suspension A;
s3: then weighing Na2CO3 solution, continuously dripping into the suspension A by adopting a silica gel head dropper, stirring while dripping, wherein the dripping time of the Na2CO3 solution is 5min, and the rotating speed of a stirrer is 500 r/min;
s4: and heating and evaporating the obtained mixed solution, and precipitating solid powder after water evaporation to obtain the degreasing agent.
The order of placing the drying agent 5 is: firstly, one side of honeycomb core paper 2 is bonded with surface paper 1, then drying agents 5 are scattered into the honeycomb 3 from the other side after bonding, it is ensured that each honeycomb is filled with the drying agents 5, then the other side of the honeycomb core paper 2 is bonded with the surface paper 1, after bonding, the honeycomb paper board is vibrated up and down, and the drying agents 5 can be adhered to the upper bonding layer 6 and the lower bonding layer 6.
Example 2
Referring to fig. 1-3, the honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer comprises honeycomb core paper 2 and surface paper 1 arranged on the upper side and the lower side of the honeycomb core paper 2, wherein honeycombs 3 are arranged in the honeycomb core paper 2, bonding layers 6 are arranged on the upper side wall and the lower side wall of each honeycomb 3, a drying agent 5 is arranged between the two bonding layers 6, a plurality of drying holes 4 are arranged on the side walls of each interval of the honeycombs 3, and the drying holes 4 are arranged in a vertical state.
In this embodiment, the opposite sides of the two face papers 1 are coated with adhesive glue, the honeycomb core paper 3 is respectively adhered to the two face papers 1, and the adhesive glue in the honeycomb 3 forms the adhesive layer 6.
The drying agent comprises the following components in parts by weight: 22 parts of anhydrous calcium chloride, 12 parts of silicic acid, 7 parts of degreasing agent and 4 parts of dispersing agent, wherein the degreasing agent comprises the following components in parts by weight: 35 parts of NaOH, 25 parts of Na2SiO 3.5H 2O 22 parts, 312 parts of CaCO, 3PO 4.12H 2O 16 parts and 322 parts of Na2 CO.
The preparation process of the degreasing agent specifically comprises the following steps:
s1: weighing CaCO3 solid in parts by weight, and grinding the CaCO3 solid to a particle size of 220 meshes by a pulverizer;
s2: sequentially weighing NaOH, Na2SiO3 & 5H2O and Na3PO4 & 12H2O according to the weight parts, respectively pouring the NaOH, the Na2SiO3 & 5H2O and the Na3PO4 & 12H2O into CaCO3 solid obtained from S1, and mechanically stirring for 16min to obtain suspension A;
s3: then weighing Na2CO3 solution, continuously dripping into the suspension A by adopting a silica gel head dropper, stirring while dripping, wherein the dripping time of the Na2CO3 solution is 6min, and the rotating speed of a stirrer is 600 r/min;
s4: and heating and evaporating the obtained mixed solution, and precipitating solid powder after water evaporation to obtain the degreasing agent.
The order of placing the drying agent 5 is: firstly, one side of honeycomb core paper 2 is bonded with surface paper 1, then drying agents 5 are scattered into the honeycomb 3 from the other side after bonding, it is ensured that each honeycomb is filled with the drying agents 5, then the other side of the honeycomb core paper 2 is bonded with the surface paper 1, after bonding, the honeycomb paper board is vibrated up and down, and the drying agents 5 can be adhered to the upper bonding layer 6 and the lower bonding layer 6.
Example 3
Referring to fig. 1-3, the honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer comprises honeycomb core paper 2 and surface paper 1 arranged on the upper side and the lower side of the honeycomb core paper 2, wherein honeycombs 3 are arranged in the honeycomb core paper 2, bonding layers 6 are arranged on the upper side wall and the lower side wall of each honeycomb 3, a drying agent 5 is arranged between the two bonding layers 6, a plurality of drying holes 4 are arranged on the side walls of each interval of the honeycombs 3, and the drying holes 4 are arranged in a vertical state.
In this embodiment, the opposite sides of the two face papers 1 are coated with adhesive glue, the honeycomb core paper 3 is respectively adhered to the two face papers 1, and the adhesive glue in the honeycomb 3 forms the adhesive layer 6.
The drying agent comprises the following components in parts by weight: 25 parts of anhydrous calcium chloride, 13 parts of silicic acid, 8 parts of degreasing agent and 5 parts of dispersing agent, wherein the degreasing agent comprises the following components in parts by weight: 35 parts of NaOH, 25 parts of Na2SiO 3.5H 2O 25 parts, 313 parts of CaCO, 3PO 4.12H 2O 17 parts and 325 parts of Na2 CO.
The preparation process of the degreasing agent specifically comprises the following steps:
s1: weighing CaCO3 solid in parts by weight, and grinding the CaCO3 solid to a particle size of 250 meshes by a pulverizer;
s2: sequentially weighing NaOH, Na2SiO3 & 5H2O and Na3PO4 & 12H2O according to the weight parts, respectively pouring the NaOH, the Na2SiO3 & 5H2O and the Na3PO4 & 12H2O into CaCO3 solid obtained from S1, and mechanically stirring for 18min to obtain suspension A;
s3: then weighing Na2CO3 solution, continuously dripping into the suspension A by adopting a silica gel head dropper, stirring while dripping, wherein the dripping time of the Na2CO3 solution is 7min, and the rotating speed of a stirrer is 800 r/min;
s4: and heating and evaporating the obtained mixed solution, and precipitating solid powder after water evaporation to obtain the degreasing agent.
The order of placing the drying agent 5 is: firstly, one side of honeycomb core paper 2 is bonded with surface paper 1, then drying agents 5 are scattered into the honeycomb 3 from the other side after bonding, it is ensured that each honeycomb is filled with the drying agents 5, then the other side of the honeycomb core paper 2 is bonded with the surface paper 1, after bonding, the honeycomb paper board is vibrated up and down, and the drying agents 5 can be adhered to the upper bonding layer 6 and the lower bonding layer 6.
Example 4
Referring to fig. 1-3, the honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer comprises honeycomb core paper 2 and surface paper 1 arranged on the upper side and the lower side of the honeycomb core paper 2, wherein honeycombs 3 are arranged in the honeycomb core paper 2, bonding layers 6 are arranged on the upper side wall and the lower side wall of each honeycomb 3, a drying agent 5 is arranged between the two bonding layers 6, a plurality of drying holes 4 are arranged on the side walls of each interval of the honeycombs 3, and the drying holes 4 are arranged in a vertical state.
In this embodiment, the opposite sides of the two face papers 1 are coated with adhesive glue, the honeycomb core paper 3 is respectively adhered to the two face papers 1, and the adhesive glue in the honeycomb 3 forms the adhesive layer 6.
The drying agent comprises the following components in parts by weight: 28 parts of anhydrous calcium chloride, 14 parts of silicic acid, 8 parts of degreasing agent and 7 parts of dispersing agent, wherein the degreasing agent comprises the following components in parts by weight: 38 parts of NaOH, 28 parts of Na2SiO3 & 5H2O 28 parts, 313 parts of CaCO, 18 parts of Na3PO4 & 12H2O 18 parts and 328 parts of Na2 CO.
The preparation process of the degreasing agent specifically comprises the following steps:
s1: weighing CaCO3 solid according to the weight part, and grinding the CaCO3 solid to 280 meshes by a pulverizer;
s2: sequentially weighing NaOH, Na2SiO3 & 5H2O and Na3PO4 & 12H2O according to the weight parts, respectively pouring the NaOH, the Na2SiO3 & 5H2O and the Na3PO4 & 12H2O into CaCO3 solid obtained from S1, and mechanically stirring for 18min to obtain suspension A;
s3: then weighing Na2CO3 solution, continuously dripping into the suspension A by adopting a silica gel head dropper, stirring while dripping, wherein the dripping time of the Na2CO3 solution is 8min, and the rotating speed of a stirrer is 900 r/min;
s4: and heating and evaporating the obtained mixed solution, and precipitating solid powder after water evaporation to obtain the degreasing agent.
The order of placing the drying agent 5 is: firstly, one side of honeycomb core paper 2 is bonded with surface paper 1, then drying agents 5 are scattered into the honeycomb 3 from the other side after bonding, it is ensured that each honeycomb is filled with the drying agents 5, then the other side of the honeycomb core paper 2 is bonded with the surface paper 1, after bonding, the honeycomb paper board is vibrated up and down, and the drying agents 5 can be adhered to the upper bonding layer 6 and the lower bonding layer 6.
Example 5
Referring to fig. 1-3, the honeycomb paperboard with holes on the honeycomb wall surface of the sandwich layer comprises honeycomb core paper 2 and surface paper 1 arranged on the upper side and the lower side of the honeycomb core paper 2, wherein honeycombs 3 are arranged in the honeycomb core paper 2, bonding layers 6 are arranged on the upper side wall and the lower side wall of each honeycomb 3, a drying agent 5 is arranged between the two bonding layers 6, a plurality of drying holes 4 are arranged on the side walls of each interval of the honeycombs 3, and the drying holes 4 are arranged in a vertical state.
In this embodiment, the opposite sides of the two face papers 1 are coated with adhesive glue, the honeycomb core paper 3 is respectively adhered to the two face papers 1, and the adhesive glue in the honeycomb 3 forms the adhesive layer 6.
The drying agent comprises the following components in parts by weight: 30 parts of anhydrous calcium chloride, 15 parts of silicic acid, 10 parts of degreasing agent and 8 parts of dispersing agent, wherein the degreasing agent comprises the following components in parts by weight: 40 parts of NaOH, 30 parts of Na2SiO3 & 5H2O 30, 315 parts of CaCO, 20 parts of Na3PO4 & 12H2O 20 and 330 parts of Na2 CO.
The preparation process of the degreasing agent specifically comprises the following steps:
s1: weighing CaCO3 solid according to the weight part, and grinding the CaCO3 solid to 300 meshes by a pulverizer;
s2: sequentially weighing NaOH, Na2SiO3 & 5H2O and Na3PO4 & 12H2O according to the weight parts, respectively pouring the NaOH, the Na2SiO3 & 5H2O and the Na3PO4 & 12H2O into CaCO3 solid obtained from S1, and mechanically stirring for 20min to obtain suspension A;
s3: then weighing Na2CO3 solution, continuously dripping into the suspension A by adopting a silica gel head dropper, stirring while dripping, wherein the dripping time of the Na2CO3 solution is 10min, and the rotating speed of a stirrer is 1000 r/min;
s4: and heating and evaporating the obtained mixed solution, and precipitating solid powder after water evaporation to obtain the degreasing agent.
The order of placing the drying agent 5 is: firstly, one side of honeycomb core paper 2 is bonded with surface paper 1, then drying agents 5 are scattered into the honeycomb 3 from the other side after bonding, it is ensured that each honeycomb is filled with the drying agents 5, then the other side of the honeycomb core paper 2 is bonded with the surface paper 1, after bonding, the honeycomb paper board is vibrated up and down, and the drying agents 5 can be adhered to the upper bonding layer 6 and the lower bonding layer 6.
Comparative example
Now, the performance test of the honeycomb paperboard with open holes on the honeycomb wall surface of the sandwich layer prepared in the embodiments 1 to 5 of the present technical scheme and the comparative example (prior art) is performed, and the measured results are shown in the following table:
as can be seen from the above table, by adding the drying agent 5, moisture generated by the honeycomb paperboard during drying can be absorbed and can not be absorbed by the honeycomb paperboard any more, the powdery drying agent 5 is distributed on the inner walls of the upper side and the lower side of the honeycomb 3 through the bonding layers 6, when the honeycomb paperboard is dried, the moisture inside the honeycomb core paper 2 can be inside the honeycomb, the drying holes 4 can realize the communication of the honeycomb 3, so that the moisture can flow in different honeycombs 3, the moisture is immediately absorbed when contacting the drying agent 5, thereby improving the drying efficiency of the honeycomb paperboard by 10-20%, enhancing the strength of the honeycomb paperboard by more than 10%, and in addition, the degreasing agent is arranged in the drying agent 5, so that grease on the outer surface layer of the honeycomb paperboard can be removed, the influence of grease on the honeycomb paperboard is reduced, the dried honeycomb paperboard has stronger hardness and is not easy to bend, and therefore, surface grease on the honeycomb inside the honeycomb paperboard is detected, the grease in examples 1-5 was significantly less to achieve the de-oiling and strength enhancing effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The honeycomb paperboard with the holes on the honeycomb wall surface of the sandwich layer comprises honeycomb core paper, surface paper is arranged on the upper portion and the lower portion of the honeycomb core paper, and honeycombs are arranged in the honeycomb core paper.
2. The sandwich honeycomb wall-apertured honeycomb paperboard of claim 1 wherein a plurality of drying apertures are provided in each of said spaced apart side walls of said honeycomb, said drying apertures being arranged in a vertical orientation.
3. The sandwich layer honeycomb wall surface opening honeycomb paperboard of claim 2 wherein the facing sides of the two face sheets are coated with adhesive, the honeycomb core paper is bonded to the two face sheets, and the adhesive in the honeycomb forms a bonding layer.
4. The sandwich layer honeycomb wall surface cell honeycomb paperboard of claim 3 wherein said desiccant comprises in parts by weight: 20-30 parts of anhydrous calcium chloride, 10-15 parts of silicic acid, 5-10 parts of degreasing agent and 3-8 parts of dispersing agent.
5. The sandwich layer honeycomb wall surface open-cell honeycomb paperboard according to claim 4, wherein the degreasing agent comprises the following components in parts by weight: the coating comprises, by weight, 30-40 parts of NaOH, 20-30 parts of Na2SiO 3.5H 2O 20, 310-15 parts of CaCO, 15-20 parts of Na3PO 4.12H 2O 15 and 320-30 parts of Na2 CO.
6. The honeycomb paperboard with open cells on the honeycomb wall surface of the sandwich layer as claimed in claim 5, wherein the preparation process of the degreasing agent specifically comprises the following steps:
s1: weighing CaCO3 solid according to the weight part, and grinding the CaCO3 solid to the particle size of 200-300 meshes by a grinding machine;
s2: sequentially weighing NaOH, Na2SiO3 & 5H2O and Na3PO4 & 12H2O according to the weight parts, respectively pouring the NaOH, the Na2SiO3 & 5H2O and the Na3PO4 & 12H2O into CaCO3 solid obtained from S1, and mechanically stirring for 15-20min to obtain a suspension A;
s3: then weighing Na2CO3 solution, continuously dripping into the suspension A by adopting a silica gel head dropper, stirring while dripping, wherein the dripping time of the Na2CO3 solution is 5-10min, and the rotating speed of a stirrer is 500-1000 r/min;
s4: and heating and evaporating the obtained mixed solution, and precipitating solid powder after water evaporation to obtain the degreasing agent.
7. The sandwich honeycomb wall surface cell honeycomb paperboard of claim 6 wherein said desiccant is placed in the order: firstly, one side of honeycomb core paper is bonded with surface paper, then drying agents are scattered into the honeycomb from the other side after bonding, it is ensured that each honeycomb is filled with the drying agents, then the other side of the honeycomb core paper is bonded with the surface paper, after bonding, the honeycomb paper boards are vibrated up and down, and the drying agents can be adhered to the upper bonding layer and the lower bonding layer.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5759425A (en) * | 1995-09-06 | 1998-06-02 | Kawasaki Jukogyo Kabushiki Kaisha | Honeycomb core degreasing method |
| CN108621493A (en) * | 2018-05-09 | 2018-10-09 | 句容市东山纸品厂 | One kind being packed for honeycomb cardboard |
| CN110524964A (en) * | 2019-08-30 | 2019-12-03 | 西安理工大学 | A kind of honeycomb cardboard of laminboard layer honeycomb wall surface aperture |
-
2021
- 2021-04-08 CN CN202110376141.3A patent/CN113320230A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5759425A (en) * | 1995-09-06 | 1998-06-02 | Kawasaki Jukogyo Kabushiki Kaisha | Honeycomb core degreasing method |
| CN108621493A (en) * | 2018-05-09 | 2018-10-09 | 句容市东山纸品厂 | One kind being packed for honeycomb cardboard |
| CN110524964A (en) * | 2019-08-30 | 2019-12-03 | 西安理工大学 | A kind of honeycomb cardboard of laminboard layer honeycomb wall surface aperture |
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Application publication date: 20210831 |