CA2472851A1 - Re-enforced corrugated packaging and insulation material - Google Patents
Re-enforced corrugated packaging and insulation material Download PDFInfo
- Publication number
- CA2472851A1 CA2472851A1 CA 2472851 CA2472851A CA2472851A1 CA 2472851 A1 CA2472851 A1 CA 2472851A1 CA 2472851 CA2472851 CA 2472851 CA 2472851 A CA2472851 A CA 2472851A CA 2472851 A1 CA2472851 A1 CA 2472851A1
- Authority
- CA
- Canada
- Prior art keywords
- substrate
- corrugated
- fiber
- paper
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- 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
- B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
- B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
- B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
- B31D5/0069—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including forming or transforming three-dimensional material, e.g. corrugated webs or material of cellular structure
-
- 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
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2886—Additionally reinforcing, e.g. by applying resin or wire
-
- 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
- B32B3/28—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 a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
- B65D65/403—Applications of laminates for particular packaging purposes with at least one corrugated layer
-
- 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
- B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D2565/38—Packaging materials of special type or form
- B65D2565/381—Details of packaging materials of special type or form
- B65D2565/385—Details of packaging materials of special type or form especially suited for or with means facilitating recycling
-
- 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
-
- 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
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Abstract
The present invention relates to a corrugated product comprising a corrugated substrate, having a top surface and a bottom surface, laminated with a sheet material on its top and/or bottom surface. The substrate is selected from the group consisting of paper, craft paper or Cotton Paper. The sheet material is selected from the group consisting of paper, craft paper, Cotton Paper. A fiber material fills the spaces between corrugations in the substrate and the first and/or second sheet material said fiber material selected from the group consisting of one or more of recycled paper fiber, wood fiber, natural plant fiber or foamed starch. The corrugated product of the present invention can be used as a protective cushioning packaging material, an insulation barrier, cushioned envelopes, void fill, sound barrier, carpet and flooring underlay or boxes for shipping and product packaging. It is recyclable and is water resistant.
Description
TITLE: I2E-ENF~T~~F,r~ ~ORP.I~OATEr,1'~ACI~A~IN'~' AIvlI3 INSULATION
hvlA TERIAL
FIELh OF TIDE INVENTIOhf This invention relates to a corrugated packaging and ir,~sulation material.
In particular the present invention provides a protective cushioning produ~t_for~ned by corrugating a substrate and method of making same.
r~ESCRIP T ION OF THE PI1~IOI~ Al2 T
conventional corrugated cardboard has been used as packing material.
Various combinations of corr ugated cardboard with Styrofoam boards or bubble sheeting are known. fIowevcr there is a need for a less expensive packaging material that is 100% recyclable and ewvironn~entaliy compatible.
s~tl~Al~~ OF TIN ~E~~rrI~~T
It is an object of the invention to provide a. re-enforced corrugated product for use as protective packaging or insulation bars°ier.
It is a further object of the invention to provide a method of making a corrugated product.
Thus in accordance with the present invention there is provided a corrugated product comprising a corrugated substrate having a top surface and a bottom surface and a first sheet is larnanated to the points between the corrugations of the top surface. The substrate is selected from the group consisting of paper, craft paper or cotton Paper. The first sheet is selected from the group consisting of paper, 3C craft paper, cotton Paper. A second sheet is laminated to the points between the corrugations of the bottom surface. The spaces between the corrugations in the substrate and the first andlor second sheet material is filled with a rec~rclable f~.lling material that re-enforces the corrugated product. The racy clable filling material is .
preferably selected from the group consisting of foamed starch, recycable paper fiber, wood fiber or natural plant fiber. 'I'he first and second sheets trap tlae recyclable filling material between the corrugated. substrate and the sheets to provide additional cushioning and insulation properties to the product over simply the corrugations. The corrugated product of the present invention can be used as a protective cushioning packaging material, an insulation barrier, shipping pallets, sound barrier or re-enforced boxes for shipping and product packaging. It is IOfl%recyclable and is water resistant.
In anoth~,r e:nbo~;lirn.e~~t the in~~ention is directed to processes for making the corrugated products.
Further features of the invention will be described or will become apparent in the course of the following detailed description.
l~ ~IE~IEF J~ESCRIPTI~I~ ~F T I-IE I~RA4~IN~aS
In order that the invention rna~r be more clearly understood, the preferred embodiment thereof will r°~o~T be described in detail by way of example, with reference to the accompanying drawings, in which:
Fig~zre I is a schematic end pla:ra ~riew of a re-enforced coaragated product according to the present invention.
Figure 2 is a schematic of an ernbodirnea~t of a process according to tl;le present 2~ invention to form the corrugated products of Figure I.
DETI~ILEI~ DESCRIPTI~N ~F TI-IE PREFERREC~ ElI~IE~DIIvIEhTT
Referaing to Figure l, ~ corrugated product according to the present 25 invention is generally indicated ~.t 1. In the embadiment illustrated a corrugated substrate z, having a top surface 3 and a bottom surface ~., has all the voids 9 between the con~zgations (flutes ~ filled with a recyclable, filler rr~aterial 6 preferably selected from the group consisting of recycled paper fiber, wood f ~ber, natural plant fiber or foamed starch.. The fiber rn~aterial ~ can consist of one or amore of recycled paper fiber, 3~ wood fiber, natural plant fiber or foas~ed starch alone or iir-~
v~orrabination.The top surface 3 of the corrugated su~strate 2 is laminated with ~t first sheet'? and the bottom surface 4 is Ian2inated with a second sheet 8. In the embodiment illustrated the substrate z is selected froryz the group consisting of paper., craft paper or Cotton paper.
The sheets 7,8 are preferab4y selected from the group consisting of paper, craft papeA, 35 Cotton paper The sheets 7 and 8 trap the fiber material ~i -in the voids 9 between corrugations 5 in the corrugated substrate and the sheets ?,8. The n3ore strength required the thicker the gauge of the paper selected for the substrate 2 and sheets 7,8.
The corrugated product of the present invention can be used as a protective cushioning z packaging material, an insulation barrier, cushioned envelopes, void fill, sound barrier, carpet and flooring underlay or boxes for shipping and product packazging. It is recyclable and is water resistant.
Figure 2 illustrates sclmmaticaly one method of making the corrugated products of Figure I. In Figure 2 three rolls 21, 22, 23 are shown. The roll 22 contains the substrate 24 that will be corrugated to form the corrugated substrate 2.
Doll 21 contains the sheet 7 and roll 2 3 contains sheet 8. The sulL~strate 24 from roll 22 is threaded over- a heated idler rollers 25,26 that are capable of releasing stearra into the 1Q substrate when it is a paper substrate being corrczgated. These heated idler rollers 25,26 are preferably oiI heated. The substrate 24 is then fed through a pair of male 27 and female 28 rotary dies to create the center flute 2 of the corr~igated structure.
~Jhile substrate 24 is being corrugated, the sheets 7, 8 are drawn off rolls 21, 23. Sheet 7 passes over idle roller 29 and between heated idle rollers 3D, 31. Sheet 7 there passes under the extruder die 32 wl~erv a thin layer of extruded fiber pulp andlor foarnable starch is laminated to the sarface of sheet 7 and then around heated idle roller 38. As substrate 24 is cor~~ugated to form the flutes 5, the sheet '7 is fed between nip roller 33 and corrugated sulsstrate 2 as it passes over female die 28.
Sheet '~ is laminated only on the points 4Cl between corrugations 5 of the top surface 3r The thin layer of extruded fiber pulp argdlor foamable starch is still sticky after being applied to sheet 7. This enables the sheet material 7 to stick to the points 4~ on substrate 2. As the thin layer is tacky and it is run through nip roller 33 the thin layer becomes thinner at the points 4~ that it contacts the substrate 2 and will then not expand and distort the corrugations or flute 5 when subsequently heated.
~s the two ~.vebs i:ormed by substrate 2 and. sheet '~ continue around tlge mold (female rotary die) 28 they exit and start to wrap around :rip roller 34 where the second sheet 8 is introduced and adhered to the bottom of tl:e fluted substrate 2.
The sheet material 8 is drawn from roll 23 under the extruder die 35 where a thin layer of extruded faber pulp ancUor foamable starch is applied to the side of the sheet 8 to be attached to the substrate 2. Sheet 8 then passes over heated idle roller 36. The sheet 8 continues, to pass with the lamination of substrate 2 and sheet 7, through the nip rollers 34 and 3'~ and is laminated only on the points 4I
between corrugations 5 of the bottom surf ace 4 of substrate 2. The thin layer of extruded fiber pulp andlor foamable starch is still sticky after teeing applied to sheet 8.
This enables the sheet material 8 to stick to tlm points 41 on subs~rate 2. !~s the thin layer is tacky and it is run through nip roller 34,3' the film layer beco~~es thinner ;at the points 41 that it contacts the substrate ~ and gill then not expand and distort th~.e corrugations or flute 5 when subsequently heated.
The laminated structure ~2 nova proceeds through a heat source, in the embodiment shown a ~ ( radio frequency) machine 43, that heats the paper and fiber to dry tl~e laminated structure 42 arid causing the foamable starch to expand_(foam) and fill in all the voids between the corrugation flutes 5 and the sheets 7,8 respectively. As the foanaabie starch is expanding the larn.inated structure ~2 travels IO through cooled gauging nip rollers 44 that control the expansion and aid in the drying of the fiber filled structure 42. ''fhe rollers 25~, 30, 31, 25, .2~, 3f~ and 38 are all heated to aid in the curing and setting of the fiber fiiler.
having illustrated and described a preferred embodiment of the I5 invention and certain possl~le ~~odifications thereto, it should be apparent to those of ordinary skill in the art that ~e invention permits of' furths:r modification irf arranger~.ent and detail. ~~ll such modifications are cover; d by the scope of the lnventlon.
hvlA TERIAL
FIELh OF TIDE INVENTIOhf This invention relates to a corrugated packaging and ir,~sulation material.
In particular the present invention provides a protective cushioning produ~t_for~ned by corrugating a substrate and method of making same.
r~ESCRIP T ION OF THE PI1~IOI~ Al2 T
conventional corrugated cardboard has been used as packing material.
Various combinations of corr ugated cardboard with Styrofoam boards or bubble sheeting are known. fIowevcr there is a need for a less expensive packaging material that is 100% recyclable and ewvironn~entaliy compatible.
s~tl~Al~~ OF TIN ~E~~rrI~~T
It is an object of the invention to provide a. re-enforced corrugated product for use as protective packaging or insulation bars°ier.
It is a further object of the invention to provide a method of making a corrugated product.
Thus in accordance with the present invention there is provided a corrugated product comprising a corrugated substrate having a top surface and a bottom surface and a first sheet is larnanated to the points between the corrugations of the top surface. The substrate is selected from the group consisting of paper, craft paper or cotton Paper. The first sheet is selected from the group consisting of paper, 3C craft paper, cotton Paper. A second sheet is laminated to the points between the corrugations of the bottom surface. The spaces between the corrugations in the substrate and the first andlor second sheet material is filled with a rec~rclable f~.lling material that re-enforces the corrugated product. The racy clable filling material is .
preferably selected from the group consisting of foamed starch, recycable paper fiber, wood fiber or natural plant fiber. 'I'he first and second sheets trap tlae recyclable filling material between the corrugated. substrate and the sheets to provide additional cushioning and insulation properties to the product over simply the corrugations. The corrugated product of the present invention can be used as a protective cushioning packaging material, an insulation barrier, shipping pallets, sound barrier or re-enforced boxes for shipping and product packaging. It is IOfl%recyclable and is water resistant.
In anoth~,r e:nbo~;lirn.e~~t the in~~ention is directed to processes for making the corrugated products.
Further features of the invention will be described or will become apparent in the course of the following detailed description.
l~ ~IE~IEF J~ESCRIPTI~I~ ~F T I-IE I~RA4~IN~aS
In order that the invention rna~r be more clearly understood, the preferred embodiment thereof will r°~o~T be described in detail by way of example, with reference to the accompanying drawings, in which:
Fig~zre I is a schematic end pla:ra ~riew of a re-enforced coaragated product according to the present invention.
Figure 2 is a schematic of an ernbodirnea~t of a process according to tl;le present 2~ invention to form the corrugated products of Figure I.
DETI~ILEI~ DESCRIPTI~N ~F TI-IE PREFERREC~ ElI~IE~DIIvIEhTT
Referaing to Figure l, ~ corrugated product according to the present 25 invention is generally indicated ~.t 1. In the embadiment illustrated a corrugated substrate z, having a top surface 3 and a bottom surface ~., has all the voids 9 between the con~zgations (flutes ~ filled with a recyclable, filler rr~aterial 6 preferably selected from the group consisting of recycled paper fiber, wood f ~ber, natural plant fiber or foamed starch.. The fiber rn~aterial ~ can consist of one or amore of recycled paper fiber, 3~ wood fiber, natural plant fiber or foas~ed starch alone or iir-~
v~orrabination.The top surface 3 of the corrugated su~strate 2 is laminated with ~t first sheet'? and the bottom surface 4 is Ian2inated with a second sheet 8. In the embodiment illustrated the substrate z is selected froryz the group consisting of paper., craft paper or Cotton paper.
The sheets 7,8 are preferab4y selected from the group consisting of paper, craft papeA, 35 Cotton paper The sheets 7 and 8 trap the fiber material ~i -in the voids 9 between corrugations 5 in the corrugated substrate and the sheets ?,8. The n3ore strength required the thicker the gauge of the paper selected for the substrate 2 and sheets 7,8.
The corrugated product of the present invention can be used as a protective cushioning z packaging material, an insulation barrier, cushioned envelopes, void fill, sound barrier, carpet and flooring underlay or boxes for shipping and product packazging. It is recyclable and is water resistant.
Figure 2 illustrates sclmmaticaly one method of making the corrugated products of Figure I. In Figure 2 three rolls 21, 22, 23 are shown. The roll 22 contains the substrate 24 that will be corrugated to form the corrugated substrate 2.
Doll 21 contains the sheet 7 and roll 2 3 contains sheet 8. The sulL~strate 24 from roll 22 is threaded over- a heated idler rollers 25,26 that are capable of releasing stearra into the 1Q substrate when it is a paper substrate being corrczgated. These heated idler rollers 25,26 are preferably oiI heated. The substrate 24 is then fed through a pair of male 27 and female 28 rotary dies to create the center flute 2 of the corr~igated structure.
~Jhile substrate 24 is being corrugated, the sheets 7, 8 are drawn off rolls 21, 23. Sheet 7 passes over idle roller 29 and between heated idle rollers 3D, 31. Sheet 7 there passes under the extruder die 32 wl~erv a thin layer of extruded fiber pulp andlor foarnable starch is laminated to the sarface of sheet 7 and then around heated idle roller 38. As substrate 24 is cor~~ugated to form the flutes 5, the sheet '7 is fed between nip roller 33 and corrugated sulsstrate 2 as it passes over female die 28.
Sheet '~ is laminated only on the points 4Cl between corrugations 5 of the top surface 3r The thin layer of extruded fiber pulp argdlor foamable starch is still sticky after being applied to sheet 7. This enables the sheet material 7 to stick to the points 4~ on substrate 2. As the thin layer is tacky and it is run through nip roller 33 the thin layer becomes thinner at the points 4~ that it contacts the substrate 2 and will then not expand and distort the corrugations or flute 5 when subsequently heated.
~s the two ~.vebs i:ormed by substrate 2 and. sheet '~ continue around tlge mold (female rotary die) 28 they exit and start to wrap around :rip roller 34 where the second sheet 8 is introduced and adhered to the bottom of tl:e fluted substrate 2.
The sheet material 8 is drawn from roll 23 under the extruder die 35 where a thin layer of extruded faber pulp ancUor foamable starch is applied to the side of the sheet 8 to be attached to the substrate 2. Sheet 8 then passes over heated idle roller 36. The sheet 8 continues, to pass with the lamination of substrate 2 and sheet 7, through the nip rollers 34 and 3'~ and is laminated only on the points 4I
between corrugations 5 of the bottom surf ace 4 of substrate 2. The thin layer of extruded fiber pulp andlor foamable starch is still sticky after teeing applied to sheet 8.
This enables the sheet material 8 to stick to tlm points 41 on subs~rate 2. !~s the thin layer is tacky and it is run through nip roller 34,3' the film layer beco~~es thinner ;at the points 41 that it contacts the substrate ~ and gill then not expand and distort th~.e corrugations or flute 5 when subsequently heated.
The laminated structure ~2 nova proceeds through a heat source, in the embodiment shown a ~ ( radio frequency) machine 43, that heats the paper and fiber to dry tl~e laminated structure 42 arid causing the foamable starch to expand_(foam) and fill in all the voids between the corrugation flutes 5 and the sheets 7,8 respectively. As the foanaabie starch is expanding the larn.inated structure ~2 travels IO through cooled gauging nip rollers 44 that control the expansion and aid in the drying of the fiber filled structure 42. ''fhe rollers 25~, 30, 31, 25, .2~, 3f~ and 38 are all heated to aid in the curing and setting of the fiber fiiler.
having illustrated and described a preferred embodiment of the I5 invention and certain possl~le ~~odifications thereto, it should be apparent to those of ordinary skill in the art that ~e invention permits of' furths:r modification irf arranger~.ent and detail. ~~ll such modifications are cover; d by the scope of the lnventlon.
Claims (5)
1. a corrugated product comprising a corrugated substrate having a top surface and a bottom surface, a first sheet laminated to the points between corrugations on the top surface of said corrugated substrate, a second sheet laminated to the points between corrugations on the bottom surface of said corrugated substrate and a fiber material filling the spaces between corrugations in the substrate and the first and/or second sheet material said fiber material selected from the group consisting of one or more of recycled paper fiber, wood fiber, natural plant fiber and foamed starch.
2. A corrugated product according to claim 1 wherein the corrugated substrate is selected from the group consisting of paper, craft paper and Cotton Paper.
3. The corrugated product of claim 1 or 2 wherein the first and second sheet material is selected from the group consisting of paper, craft paper and Cotton Paper.
4. A process for making a corrugated product comprising a corrugated substrate having a top surface and a bottom surface, a first sheet laminated to the points between corrugations on the top surface of said corrugated substrate, a second sheet laminated to the points between corrugations on the bottom surface of said corrugated substrate and a fiber material filling the spaces between corrugations in the substrate and the first and/or second sheet material said fiber material selected from the group consisting of one or more of recycled paper fiber, wood fiber, natural plant fiber and foamed starch, the process comprising the following steps:
a. applying a thin layer of fiber pulp and foamable starch to the surface of said first sheet and said second sheet to be laminated to the corrugated substrate.
b. feeding the substrate together with said first sheet material sheet material between a corrugation mould and nip roll to corrugate the substrate and laminate the first sheet material to the top surface of the substrate c. feeding tile corrugated substrate laminated with said first sheet material together with said second sheet material between a pair of nip rolls to laminate the second sheet material to the bottom surface of the substrate d. then heating the thin layers of fiber pulp and foamable starch causing them to expand (foam) and fill in all the voids between the corrugations on the substrate and the said first and second sheets;
a. applying a thin layer of fiber pulp and foamable starch to the surface of said first sheet and said second sheet to be laminated to the corrugated substrate.
b. feeding the substrate together with said first sheet material sheet material between a corrugation mould and nip roll to corrugate the substrate and laminate the first sheet material to the top surface of the substrate c. feeding tile corrugated substrate laminated with said first sheet material together with said second sheet material between a pair of nip rolls to laminate the second sheet material to the bottom surface of the substrate d. then heating the thin layers of fiber pulp and foamable starch causing them to expand (foam) and fill in all the voids between the corrugations on the substrate and the said first and second sheets;
5 e. cooling the corrugated product to control the expansion of the foamed material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2472851 CA2472851A1 (en) | 2004-07-05 | 2004-07-05 | Re-enforced corrugated packaging and insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2472851 CA2472851A1 (en) | 2004-07-05 | 2004-07-05 | Re-enforced corrugated packaging and insulation material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2472851A1 true CA2472851A1 (en) | 2006-01-05 |
Family
ID=35589190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2472851 Abandoned CA2472851A1 (en) | 2004-07-05 | 2004-07-05 | Re-enforced corrugated packaging and insulation material |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2472851A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148489A1 (en) * | 2009-06-22 | 2010-12-29 | Global Patented Technologies Inc. | Biodegradable packaging of starch and fiber made by extrusion |
| WO2011149925A1 (en) * | 2010-05-24 | 2011-12-01 | Shaw Industries Group, Inc. | Fiber-based carpet cushion with added resilience from vertically oriented fiber construction |
| US11401661B2 (en) | 2017-11-14 | 2022-08-02 | J & J Green Paper, Inc. | Recyclable composition for waterproofing paper utilizing a plant derived wax, pellets of the composition, recyclable waterproof paper laminate including the composition, recyclable hot beverage cup including the laminate, pod for making hot beverages including the laminate, and drinking straw including the laminate |
| WO2023072388A1 (en) * | 2021-10-27 | 2023-05-04 | Storopack Hans Reichenecker Gmbh | Stock of a protective packaging material, method for manufacturing a protective packaging product, and protective packaging product |
-
2004
- 2004-07-05 CA CA 2472851 patent/CA2472851A1/en not_active Abandoned
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010148489A1 (en) * | 2009-06-22 | 2010-12-29 | Global Patented Technologies Inc. | Biodegradable packaging of starch and fiber made by extrusion |
| CN102712409A (en) * | 2009-06-22 | 2012-10-03 | 全球专利技术公司 | Biodegradable packaging of starch and fiber made by extrusion |
| WO2011149925A1 (en) * | 2010-05-24 | 2011-12-01 | Shaw Industries Group, Inc. | Fiber-based carpet cushion with added resilience from vertically oriented fiber construction |
| GB2496320A (en) * | 2010-05-24 | 2013-05-08 | Shaw Ind Group Inc | Fiber-based carpet cushion with added resilience from vertically oriented fiber construciton |
| US8987151B2 (en) | 2010-05-24 | 2015-03-24 | Columbia Insurance Company | Fiber-based carpet cushion with added resilience from vertically oriented fiber construction |
| GB2496320B (en) * | 2010-05-24 | 2017-02-08 | Shaw Ind Group Inc | Fiber-based carpet cushion with added resilience from vertically oriented fiber construciton |
| US11401661B2 (en) | 2017-11-14 | 2022-08-02 | J & J Green Paper, Inc. | Recyclable composition for waterproofing paper utilizing a plant derived wax, pellets of the composition, recyclable waterproof paper laminate including the composition, recyclable hot beverage cup including the laminate, pod for making hot beverages including the laminate, and drinking straw including the laminate |
| WO2023072388A1 (en) * | 2021-10-27 | 2023-05-04 | Storopack Hans Reichenecker Gmbh | Stock of a protective packaging material, method for manufacturing a protective packaging product, and protective packaging product |
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