CN106149479A - Strength Compositions is for improving the purposes of the wet dimensional stability of paper pulp moulded articles - Google Patents
Strength Compositions is for improving the purposes of the wet dimensional stability of paper pulp moulded articles Download PDFInfo
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- CN106149479A CN106149479A CN201510190683.6A CN201510190683A CN106149479A CN 106149479 A CN106149479 A CN 106149479A CN 201510190683 A CN201510190683 A CN 201510190683A CN 106149479 A CN106149479 A CN 106149479A
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Abstract
The present invention relates to Strength Compositions for improving the purposes of the wet dimensional stability of paper pulp moulded articles.Described paper pulp moulded articles is produced by the method comprised the steps: obtains fibre stuff, and is given the forming tank expecting molding device；Paper pulp moulded articles is formed by described fibre stuff；And it is dried described paper pulp moulded articles.Described Strength Compositions includes at least one permanent wet strength resins, and adds described Strength Compositions to described fibre stuff before forming described paper pulp moulded articles.
Description
Technical field
According to the preamble of claims, the present invention relates to Strength Compositions for improving paper pulp die
The purposes of the wet dimensional stability of goods.
Background technology
By preparing fibre stuff (generally being prepared) by recycled fibrous material, and described slurry is put into mould
In and manufacture paper pulp moulded articles.Mould generally includes perforation and/or mesh, and uses suction and/or true
Sky, to produce the uniform coating of slurry in a mold.Hereafter, it is dried the mechanograph formed, such as, exists
Individually in dehydrator or by heating mould self.
Paper pulp moulded articles is widely used for various purpose, such as packaging material, egg carton, food
Service tray, drinks carrier (beverage carrier), clamshell container, plate and bowl.Recently,
Propose even to be used for paper pulp moulded articles making in the casting of xoncrete structure and/or product used
Mould.Obviously, such use need the dimensional stability of paper pulp moulded articles and physical strength (even when
When they are wetted).Therefore, in the urgent need to improving the wet chi in paper pulp moulded articles especially strong basicity environment
Very little stability.
Summary of the invention
It is an object of the invention to minimize or may even eliminate shortcoming present in prior art.
It is a further object to provide a kind of cost-efficient method, it is used for improving paper pulp die
The goods particularly wet dimensional stability in strong alkali environment and/or physical strength.
The present invention has reached these mesh by the feature given by the characteristic of following independent claims
's.
Give in the dependent claims the present invention some preferred embodiment.
At the Strength Compositions according to the present invention for improving the typical case of the wet dimensional stability of paper pulp moulded articles
In purposes, the method described paper pulp moulded articles of production by comprising the steps:
-obtain fibre stuff, and given the forming tank expecting molding device,
-formed paper pulp moulded articles by described fibre stuff,
-it is dried described paper pulp moulded articles,
Wherein said Strength Compositions comprises at least one permanent wet strength resins (permanent wet
Strength resin), and added described Strength Compositions to institute before forming described paper pulp moulded articles
State fibre stuff.
It has now unexpectedly been found that, when comprising the permanent of at least one synthesis before forming mechanograph
Property wet-strength resins Strength Compositions when adding fibre stuff to, significantly improve paper pulp moulded articles special
It not the wet dimensional stability in strong alkali environment and physical strength.It is not wishing to be bound by theory, it is assumed that
Add to Strength Compositions in described slurry to provide and forming the mechanograph phase between intensity resin and fiber
Between the strongest interaction so that even in the severe rugged environment of such as highly basic character, also provide raising
Stability and intensity.
Further it has been observed that, especially improve long-term wet dimensional stability and the physical strength of mechanograph.
Therefore, even if this mechanograph is exposed to strong alkali environment, this mechanograph also is able to keep physical strength and thing
Reason size within the period (the most several hours, the most several days, the most even some months) extended constant or
Person is almost unchanged.According to an embodiment of the invention, the method for the present invention pulp mold produced
Product can have > the wet tensile (strength) coefficient of 2Nm/g, preferably > 4Nm/g, more preferably > 10Nm/g.
In the context of the present invention, term " strong basicity environment " represents that environment pH is 10～14, allusion quotation
It is 11～14 type, is more typically 12～14.
Fibre stuff can be obtained by making fibrous material rupture in water.Fibre stuff can comprise to come
From recycled writing paper and/or the fibrous material of Regenerated plate, such as OCC (OCC).Preferably, fiber
Material is OCC.According to one preferred embodiment, fibrous material comprises at least 70wt%, preferably
At least 80wt% from recycled writing paper and/or the fibrous material of Regenerated plate (such as OCC).Excellent at some
In the embodiment of choosing, fibrous raw material (stock) can comprise even > 90wt%, preferably even 100wt%
From recycled writing paper and/or the fibrous material of Regenerated plate (such as OCC).Fibre stuff is expected mould
The forming tank of pressure device.
Permanent wet strength resins can be the resin of crosslinking.Preferably, permanent wet strength resins is permissible
Selected from polyamidoamines amine-epoxy halopropane resin or poly-diisocyanate resin.Especially it has been observed that gather
Amidoamines-epichlorohydrin resins and poly-diisocyanate resin provide the property of improvement in strong alkali environment
Matter.
According to one preferred embodiment of the invention, permanent wet strength resins is the polyamide of self-crosslinking
Base amine-epoxy halopropane resin.Polyamidoamines amine-epoxy halopropane resin based on polyamidoamines amine main chain,
This main chain is the result of condensation reaction between adipic acid and diethylenetriamines.Subsequently with epoxyhalopropane
Reaction produces the fluoropolymer resin structure of crosslinking, and wherein the main chain along polymer forms the azepine of high response
Tetramethylene. (azetidinium) group.According to an embodiment, polyamidoamines amine-epoxy halopropane
Resin can have < 80%, preferably < 70%, more preferably < 60%, even more preferably < 50%, sometimes
Even < the azetidinium content of 40%.According to an embodiment, polyamidoamines amine-epoxy halogen third
Alkane resin can have 0.01～80%, preferably 0.01～70%, more preferably 0.01～60%, even more preferably
0.01～50%, the most even 0.01～the azetidinium content of 40%.
Azetidine group can be controlled by being carefully chosen such as epoxyhalopropane/amine ratio
Amount.According to an exemplary embodiment, polyamides alkylamine-epichlorohydrin resins have < 0.8,
Preferably < 0.5, more preferably < 0.45, even more preferably < 0.4, the most even < epoxyhalopropane of 0.3/
Amine ratio.The lower limit of epoxyhalopropane/amine ratio can be 0.1, preferably 0.01.According to an embodiment party
Formula, resin can have 0.01～0.8, preferably 0.01～0.5, more preferably 0.01～0.45, even more preferably
The epoxyhalopropane of 0.01～0.4, the most even 0.01～0.3/amine ratio.Epoxyhalopropane/amine ratio is permissible
It is calculated as the mol ratio of epoxyhalopropane and amine.
Suitably polyamidoamines amine-epoxy halopropane resin can have 80000～250000g/mol, excellent
Select the weight average molecular weight of 150000～250000g/mol.Molecular weight is determined by size exclusion chromatography,
Use poly-(2-vinylpyridine) as calibration standard.
As described above, polyamidoamines amine-epoxy halopropane resin has the reactive azetidin of significant quantity
Groups, this group is that resin provides high cationic charge, and this improves resin guarantor on fiber
Hold, and provide self-crosslinking ability for resin.Preferably, by dripping at pH 7 polyvinyl sulfuric acid potassium salt
Determining to be measured, polyamidoamines amine-epoxy halopropane resin has 1.5～4.5meq/g, preferably 2.0～4.0
Meq/g, more preferably 2.1～the charge density of 3.0meq/g.When being retained in paper pulp moulded articles, poly-
Amidoamines-epichlorohydrin resins self-crosslinking, and form strong protection around Fiber-Fiber bonding,
And prevent bonding to be hydrolyzed.Preferably, permanent wet strength resins is polyamidoamines amine-epoxy chloropropane.
According to one preferred embodiment of the invention, permanent wet strength resins is poly-diisocyanate tree
Fat.Preferably use poly-diisocyanate resin, to provide resin to fiber pulp with the form of aqueous emulsion
Being uniformly distributed of material.Poly-diisocyanate resin can comprise aliphatic, alicyclic or fragrant adoption two isocyanide
Acid esters or their mixture.Suitable poly-diisocyanate can preferably comprise more than two Carbimide.
Ester group, such as 2～5 isocyanate groups.The preferred example of poly-diisocyanate resin is based on two
Phenylmethane diisocyanate, toluene di-isocyanate(TDI), hexamethylene diisocyanate and isophorone two are different
Cyanate chemicals.The amount of reactive isocyanate group, i.e. NCO content, can 5～50%,
Change in the range of typically 7～25%.
According to one preferred embodiment, Strength Compositions comprises polyamidoamines amine epichlorohydrin resins
With both anion-polyacrylamides.Anion-polyacrylamide can improve permanent wet strength tree
Fat reservation on fiber.The ratio of anionic polymer and polyamidoamines amine epichlorohydrin resins can
With about 0.05 to 1.
Formed before paper pulp moulded articles, such as pulp manufacture, store or transport during,
Strength Compositions is added in pulp.Strength Compositions can be added to pulper, paper pulp storage
In the forming tank of tank or molding device.
According to one preferred embodiment of the invention, the addition of Strength Compositions is for making fibre stuff
Zeta-potential after adding Strength Compositions remains <-2.0mV.When Zeta-potential is too close to neutral value
Time, may there is the problem producing foam.It is therefore preferable that the addition of Strength Compositions is for making fiber pulp
Expect add the Zeta-potential after Strength Compositions be <-3.0mV, more preferably <-5mV, the most excellent
Choosing <-10mV.The addition of Strength Compositions can be the permanent wet strength resins of generation 1.3～26kg
/ ton dry fibers slurry, the permanent wet strength resins of preferably 2.6～18.2kg/ton dry fibers slurry, more excellent
Select the permanent wet strength resins/ton dry fibers slurry of 5.2～13kg, with dry permanent wet strength resins
Calculate.It is surprisingly observed that, even can also obtain mechanograph with the Strength Compositions of relatively low consumption
Wet dimensional stability and the improvement of physical strength.This is favourable, not only due to so can avoid
State the problem relevant with neutral Zeta-potential value, also as the chemicals cost minimization in technique can be made.
According to an embodiment of the invention, defoamer can be added in fibre stuff.Can add
Defoamer is added before adding Strength Compositions.Defoamer can be selected from defoamer based on silicon dioxide and base
Defoamer in fatty alcohol.Generally, the addition of defoamer is 200～500g/ ton dry fibers slurries, excellent
Select 200～300g/ ton dry fibers slurries, more preferably 200～250g/ ton dry fibers slurries.
According to one preferred embodiment, Strength Compositions comprises water-repelling agent further.Water-repelling agent is permissible
For alkyl ketene dimer wax or paraffin, preferably alkyl ketene dimer wax.Suitably alkyl ketene dimerization
Body wax can have 40～70 DEG C, preferably 44.5～64 DEG C, the fusing point of more preferably 44.5～49 DEG C.
According to an embodiment of the invention, after paper pulp moulded articles molding so that it is in air certainly
So it is dried.Such as, before thermoforming processes, paper pulp moulded articles is made to be dried 10～24 hours, preferably
15～20 hours.After natural drying, by hot press use higher than 150 DEG C temperature and
Make paper pulp moulded articles thermoforming.
According to one preferred embodiment of the invention, the paper pulp moulded articles of production is used in concrete product
With in the manufacture of structure.Paper pulp moulded articles could be for being formed concrete product and/or the casting mold of structure or
Container (cast mould or pod), such as when the knot that cast concrete floor, building are basic or similar
During structure.
Detailed description of the invention
Some embodiments of the present invention are described in following non-limiting example.
Embodiment 1
Business OCC (OCC) pulp of concentration 5wt% is used as recycled fiber sources.
Use two kinds of different wet-strength resins (Kemira based on polyamidoamines amine-epoxy chloropropane (PAE)
Oyj, Finland) (being denoted as Fiberbuilder A and Fiberbuilder B at this) improve handmade paper
The intensity of (hand sheet).Table 1 gives the character of wet-strength resins.By alkyl ketene dimer
Wax (Kemira Oyj, Finland) is used in certain embodiments together with wet-strength resins.
Table 1. performance of wet-strength resins in an embodiment
| Chemicals | Solid content, % | PCD(meq/g) | pH |
| Fiberbuilder A | 26.32 | 2.52 | 3.88 |
| Fiberbuilder B | 26.60 | 2.93 | 3.72 |
Zeta-potential based on fibre stuff is assessed fiber and is possessed the ability of wet-strength resins, and this Zeta-potential leads to
Cross use M ü tek SZP-6 to measure.Figure 1A and Figure 1B showing, intensity resin consumption is to fiber pulp
The impact of the Zeta-potential of material.From Figure 1A and Figure 1B, the consumption of wet-strength resins increases, improves fiber
The Zeta-potential of slurry.
Under agitation with tap water by the original OCC pulp dilution through discongesting (deflaked) to 1wt%
Concentration.Chemicals used is given in the pulp expecting the OCC ruptured.Wet-strength resins
Consumption is 10kg/t, 30kg/t or 50kg/t, and the consumption of AKD is 0kg/t or 5kg/t.First
The pulp of preparation is stirred under about 500rpm about 15 seconds, then give with the interval of each 15 seconds
Chemicals used by material.After feeding, mixed pulp slurry 15 seconds are continued.Life on handmade paper manufacture machine
Product has 100g/m2The handmade paper of basic weight.By page handmade paper manufacture machine automatic drying chamber in
It is dried 6 minutes at the temperature of 93 DEG C and the vacuum of 96kPa, quickly to remove moisture removal.
Before testing the intensity property (the wettest tensile index and dry tensile index) of the handmade paper produced,
According to ISO 187 standard by page at 23 DEG C in the relative humidity of 59% pretreatment 24 hours.
Table 2 gives device and the standard of performance for measuring page.
Table 2 sheet detecting apparatus and standard
Fig. 2 and Fig. 3 shows the wet tensile index under different wet-strength resins and AKD consumption
With dry tensile index result.See from Fig. 2 and Fig. 3, it is thus achieved that extraordinary wet tensile index result.
It was additionally observed that the raising of dry tensile index.For dry tensile index, with Fiberbuilder A or
Difference between the result that Fiberbuilder B is obtained is little.But, it was observed that Fiberbuilder B
More preferable wet tensile index result is created than Fiberbuilder A.For both wet-strength resins, add
Add AKD and provide extra enhancing.
Embodiment 2
Laboratory based on embodiment 1 is tested, and selects Fiberbuilder B for producing paper pulp moulded articles
Factory with pilot-scale experiment test further.Or do not use together with AKD AKD this
Fiberbuilder B is tested in the case of two kinds.Table 3 gives testing scheme.
The testing scheme of table 3 pilot-scale experiment
| Test No. | Chemicals | Consumption kg/ton | Case number (CN) |
| 1 | AKD | 60 | 1,2,3 |
| 2 | Fiberbuilder B | 30 | B1,B2 |
| 3 | Fiberbuilder B+AKD | 30+5 | B3,B4 |
| 4 | Fiberbuilder B | 50 | B5,B6 |
| 5 | Fiberbuilder B+AKD | 50+5 | B7,B8 |
In test No. 1, AKD solution used has the solid content of 13%.For case 2, to slurry
Middle interpolation AKD, and for case 3, use AKD as coating.
The production technology of paper pulp moulded articles is as follows:
1. preparing the regeneration corrugated sheet of about 5wt% fibre stuff in pulper, preparation spends about 5～6 points
Clock；
2. fibre stuff is transferred to 10m3Pulp storage tank in, wherein by pulp from 5wt%'s
Concentration dilution is to about 1wt%；
3. the pulp of about 500 liters is pumped into the forming tank of moulding press, is dehydrated and is molded into case
(moulding of box)；
Being dried the most in an atmosphere, thermoforming, and manufacture final goods with hot pressing, wherein temperature is about
180～190 DEG C.
In these tests, in the forming tank of moulding press, add Strength Compositions/wet strength agent, and in shape
Before becoming goods, manually agitation 5 minutes.Before thermoforming, natural drying continues 16 in an atmosphere
Individual hour.
Table 4 list thermoforming process before and after the weight of each case.
Table 4 is (weight in wet base) and the weight of (dry weight) each case afterwards before thermoforming processes.
| Case number (CN) | Weight in wet base (kg) | Dry weight (kg) | The process time (minute) |
| 1 | - | 5.5 | - |
| 2 | - | 5.5 | - |
| 3 | - | 5.4 | - |
| B1 | 11.0 | 5.0 | 21 |
| B2 | 10.1 | 4.8 | 21 |
| B3 | 10.4 | 5.1 | 20 |
| B4 | 10.1 | 5.0 | 20 |
| B5 | 11.6 | 5.8 | 20 |
| B6 | 10.1 | 5.0 | 20 |
| B7 | 11.5 | 5.8 | 20 |
| B8 | 10.8 | 5.3 | 19.5 |
After the case of thermoforming cools down, carry out a series of performance test, to test the physical strength of each case
And dimensional stability.Select case 1,2,3, B2, B3, B6, B8 be for a series of performance tests.
1. performance test 1
Whole casees is in line, and the weight of 80kg is put into the top about 10 seconds of each case.
Whole casees is all stable.
2. performance test 2
It is sprayed to tap water case upper 15 minute, then the weight of 80kg is put into the top of each case about
10 seconds.Whole casees is all stable, but case 1 is apparently softer than other case.Hereafter, by packing ring
It is placed on the top of case, and the weight of 80kg is placed on packing ring, to improve the intensity of pressure.Test is every
The center and peripheral of the end face of individual case.Case 1 ruptures, but other case is still stable.
3. performance test 3
Continue to be sprayed to tap water case upper 15 minute so that total spray time is 30 minutes.In spraying
Afterwards, again by the top about 10 seconds of the weight side of 80kg to each case.Whole casees is all stable
's.Then, packing ring is placed on the top of case, and the weight of 80kg is placed on packing ring, to improve pressure
The intensity of power.Test the center and peripheral of the end face of each case.Case 3 ruptures, but other case is still
Stable.
4. performance test 4
By whole remaining case plastic film wrapped, with the environment that simulation is moist, and keep 2 hours.
Then, the weight of 80kg is placed on the top about 10 seconds of each case.In this stage, case 2 ruptures.
Then, packing ring is placed on the top of case, and the weight of 80kg is placed on packing ring, improve the strong of pressure
Degree.In this stage, case B3 ruptures.Case B2 is softer than case B6 and B8, and it still shows satisfactory
Intensity property and dimensional stability.
It was therefore concluded that, the Fiberbuider B of 50kg/ ton consumption produces the wettest
Strength character and dimensional stability.
Even if be with reference at present the most most viable and preferred embodiment describe the present invention, but should
Understand, the invention is not restricted to above-mentioned embodiment, but the present invention also aims to contain appended claims
In the range of different amendments and the technical scheme of equivalent.
Claims (10)
1. Strength Compositions is for improving a purposes for the wet dimensional stability of paper pulp moulded articles, described paper
Slurry mechanograph is produced by the method comprised the steps:
Obtain fibre stuff, and given the forming tank expecting molding device,
Paper pulp moulded articles is formed by described fibre stuff,
It is dried described paper pulp moulded articles,
It is characterized in that, described Strength Compositions comprises at least one permanent wet strength resins, and
Described Strength Compositions is added to described fibre stuff before forming described paper pulp moulded articles.
Purposes the most according to claim 1, it is characterised in that described permanent wet strength resins is
The resin of crosslinking, and selected from polyamidoamines amine-epoxy halopropane resin or poly-diisocyanate resin.
Purposes the most according to claim 1 and 2, it is characterised in that described Strength Compositions comprises
Wet-strength resins, described wet-strength resins is polyamidoamines amine epichlorohydrin resins.
4. according to the purposes according to any one of claims 1 to 3, it is characterised in that described intensity groups
The addition of compound is so that described fibre stuff keeps adding the Zeta-potential after described Strength Compositions
For <-2.0mV.
5. according to the purposes according to any one of Claims 1 to 4, it is characterised in that described intensity groups
The addition of compound be produce 1.3～26kg permanent wet strength resins/ton dry fibers slurry, preferably
The permanent wet strength resins of 2.6～18.2kg/ton dry fibers slurry, more preferably 5.2～13kg's is permanent
Wet-strength resins/ton dry fibers slurry.
6. according to the purposes according to any one of Claims 1 to 5, it is characterised in that by described intensity
Compositions is added in the forming tank of pulper, pulp storage tank or described molding device.
7. according to the purposes according to any one of claim 1～6, it is characterised in that described intensity groups
Compound comprises water-repelling agent, and described water-repelling agent is selected from alkyl ketene dimer wax or paraffin.
8. according to the purposes according to any one of claim 1～7, it is characterised in that described fiber pulp
Material comprises from recycled writing paper or the fiber of plate such as corrugated case (OCC).
9. according to the purposes according to any one of claim 1～8, it is characterised in that the paper completed
Slurry mechanograph has > the wet tensile (strength) coefficient of 2Nm/g, preferably > 4Nm/g, more preferably > 10Nm/g.
10. according to the purposes according to any one of claim 1～9, it is characterised in that the paper completed
Slurry mechanograph is for forming the casting mold of concrete product and/or structure or container.
Priority Applications (13)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190683.6A CN106149479B (en) | 2015-04-21 | 2015-04-21 | Strength Compositions are used to improve the purposes of the wet dimensional stability of paper pulp moulded articles |
| PL16723402T PL3286379T3 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional stability of a moulded pulp article |
| US15/568,478 US20180148894A1 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional stability of a moulded pulp article |
| CA2978243A CA2978243A1 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional stability of a moulded pulp article |
| ES16723402T ES2743796T3 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition to increase the wet dimensional stability of a molded pulp article |
| JP2017554486A JP2018513285A (en) | 2015-04-21 | 2016-04-21 | Use of strength composition to enhance wet dimensional stability of pulp molding |
| AU2016252071A AU2016252071B2 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional stability of a moulded pulp article |
| MYPI2017703954A MY185670A (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional st ability of a moulded pulp article |
| PCT/FI2016/050261 WO2016170232A1 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional stability of a moulded pulp article |
| EP16723402.0A EP3286379B1 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional stability of a moulded pulp article |
| KR1020177025534A KR102403662B1 (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition to increase the wet dimensional stability of molded pulp articles |
| RU2017134974A RU2694755C2 (en) | 2015-04-21 | 2016-04-21 | Use of hardening composition for increasing dimensional stability in wet conditions of product from pressed fibrous mass |
| NZ735108A NZ735108A (en) | 2015-04-21 | 2016-04-21 | Use of a strength composition for increasing wet dimensional stability of a moulded pulp article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510190683.6A CN106149479B (en) | 2015-04-21 | 2015-04-21 | Strength Compositions are used to improve the purposes of the wet dimensional stability of paper pulp moulded articles |
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| CN106149479A true CN106149479A (en) | 2016-11-23 |
| CN106149479B CN106149479B (en) | 2019-10-18 |
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| CN201510190683.6A Active CN106149479B (en) | 2015-04-21 | 2015-04-21 | Strength Compositions are used to improve the purposes of the wet dimensional stability of paper pulp moulded articles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114269658A (en) * | 2019-04-04 | 2022-04-01 | 艾可产品公益公司 | Molded articles made from pulp compositions providing grease and water resistance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209484A (en) * | 1997-08-21 | 1999-03-03 | 西安岳胜纸制食品容器有限公司 | Production process for disposable tableware |
| US6429253B1 (en) * | 1997-02-14 | 2002-08-06 | Bayer Corporation | Papermaking methods and compositions |
| CN1590646A (en) * | 2003-08-29 | 2005-03-09 | 姜六平 | Paper pulp molding product blank forming technology |
| CN101804766A (en) * | 2009-02-18 | 2010-08-18 | 张爱民 | Fake relief product formed by adopting plant fiber and manufacture method thereof |
| CN102199895A (en) * | 2011-04-26 | 2011-09-28 | 杭州绿宝纸制品有限公司 | Paper pulp of paper logistics tray |
| CN103524694A (en) * | 2013-10-16 | 2014-01-22 | 上海东升新材料有限公司 | Preparation method and application of water-based environment-friendly wet strength agent |
| CN104114767A (en) * | 2012-02-22 | 2014-10-22 | 凯米罗总公司 | Method for making of paper, tissue, board or the like |
| CN104169495A (en) * | 2011-12-22 | 2014-11-26 | 凯米拉公司 | Compositions and methods of making paper products |
-
2015
- 2015-04-21 CN CN201510190683.6A patent/CN106149479B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6429253B1 (en) * | 1997-02-14 | 2002-08-06 | Bayer Corporation | Papermaking methods and compositions |
| CN1209484A (en) * | 1997-08-21 | 1999-03-03 | 西安岳胜纸制食品容器有限公司 | Production process for disposable tableware |
| CN1590646A (en) * | 2003-08-29 | 2005-03-09 | 姜六平 | Paper pulp molding product blank forming technology |
| CN101804766A (en) * | 2009-02-18 | 2010-08-18 | 张爱民 | Fake relief product formed by adopting plant fiber and manufacture method thereof |
| CN102199895A (en) * | 2011-04-26 | 2011-09-28 | 杭州绿宝纸制品有限公司 | Paper pulp of paper logistics tray |
| CN104169495A (en) * | 2011-12-22 | 2014-11-26 | 凯米拉公司 | Compositions and methods of making paper products |
| CN104114767A (en) * | 2012-02-22 | 2014-10-22 | 凯米罗总公司 | Method for making of paper, tissue, board or the like |
| CN103524694A (en) * | 2013-10-16 | 2014-01-22 | 上海东升新材料有限公司 | Preparation method and application of water-based environment-friendly wet strength agent |
Non-Patent Citations (1)
| Title |
|---|
| 安郁琴: "《制浆造纸助剂》", 28 February 2010 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114269658A (en) * | 2019-04-04 | 2022-04-01 | 艾可产品公益公司 | Molded articles made from pulp compositions providing grease and water resistance |
| CN114269658B (en) * | 2019-04-04 | 2023-10-20 | 艾可产品公益公司 | Molded articles made from pulp compositions providing grease and water resistance |
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| CN106149479B (en) | 2019-10-18 |
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