CN105445446A - Wet strength agent immersion detection method - Google Patents
Wet strength agent immersion detection method Download PDFInfo
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- CN105445446A CN105445446A CN201511000772.6A CN201511000772A CN105445446A CN 105445446 A CN105445446 A CN 105445446A CN 201511000772 A CN201511000772 A CN 201511000772A CN 105445446 A CN105445446 A CN 105445446A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/44—Resins; rubber; leather
- G01N33/442—Resins, plastics
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention relates to the field of wet strength agent detection, particularly a wet strength agent immersion detection method which comprises the following steps: 1) detection of wet strength agent to be detected: a) preparing the wet strength agent solution to be detected; b) immersing a paperboard in the wet strength agent solution to be detected; c) absorbing the wet strength agent solution by the paperboard to obtain the wet paperboard; d) removing the excess wet strength agent solution to be detected; e) drying the half-dry paperboard to obtain a board to be detected; f) detecting the board to be detected to obtain detection data; 2) converting the wet strength agent solution to be detected in the step 1) into a standard wet strength agent solution, and carrying out detection many times according to the steps a)-f) to obtain standard range data; and 3) comparing the detection data with the standard range data to draw a conclusion. The wet strength agent immersion detection method simulates the practical production, and the wet strength agent performance testing is completed in the laboratory, thereby avoiding directly performing production and detection on the wet strength agent to be detected, and greatly saving the detection and production cost.
Description
Technical field
The present invention relates to wet strength agent detection field, particularly relate to wet strength agent and soak detection method.
Background technology
Latex fiber plate is a kind of sheet material adopting vegetable fibre and latex to be composited, and possesses good processing and usability.Be mainly used in the interior end making shoes at present, also can be applicable to the inner lining material of case and bag, belt, clothing, shoes and hats, the brim of a hat, stationery, the making material of furniture etc., the label etc. of jeans.
The wet strength agent that making latex fiber plate uses comprises: no matter Lauxite, melamine formaldehyde resin, polyethyleneimine, polyamide-epoxy chloropropane resin (PAE) are paper or cardboard, after water complete wetting, generally can only keep the 4%-10% of original dry strength, after use wet strength agent, this kind of Paper or cardboard large multipotency under complete wetting state keeps the 20%-40% of original dry strength.In addition, wet strength agent is added in paper pulp, more favorably condition can be provided to the manufacture of some Paper or cardboard (such as latex fiber plate), the physical propertys such as the wearing quality of Paper or cardboard, folding strength, length growth rate, intensity, l Water Paper tearing force can also be increased.
But, because its internal performance of various wet strength agent is different, the wet strength agent quality that different manufacturers is produced is had any different again, how to judge that the agent of a kind of visual angle is adding the effect produced in vegetable fibre board and whether the product quality reached meets the standard preset, current most of latex fiber plate manufacturer adopts the way of upper machine pilot scale to test, if to judge in advance or whether choose wet strength agent suitable, just need the machine test of repeated multiple times ground, have a strong impact on normal production on the one hand, experimentation cost is very high on the other hand.
Summary of the invention
The object of the invention is to propose one first utilizes wet strength agent to be detected to imitate actual production, obtain drafting board to be checked, partial properties again by detecting drafting board to be checked obtains detecting data, the critical field data of the drafting board to be checked that last and known suitable wet strength agent is produced contrast, thus judge whether this wet strength agent to be measured is applicable to the wet strength agent immersion detection method of Fibreboard Production.
For reaching this object, the present invention by the following technical solutions:
Wet strength agent soaks detection method, comprises the steps:
1) detection of wet strength agent to be detected:
A), prepare wet strength agent solution to be detected, and inserted container Inner;
B), by a piece of paper plate development insert container Inner, and make the complete submergence cardboard of wet strength agent solution to be detected;
C), absorb after wet strength agent solution to be detected becomes wet paperboard completely until cardboard, take out;
D), by wet paperboard tiling through pressurizing unit, unnecessary wet strength agent solution to be detected is removed in extruding, forms half-dried cardboard;
E), by half-dried cardboard put into baking oven Inner to dry, obtain drafting board to be checked;
F), treat check-out console and detect, obtain detecting data;
2), the detection of standard wet strength agent:
G), by described step 1) in wet strength agent solution to be detected change the standard wet strength agent solution of applicable Fibreboard Production into, and according to described step a)-f) carry out repeated detection, and obtain critical field data;
3), by described detection data and critical field data compare, reach a conclusion.
More excellent, described step 1) and 2) in no particular order.Step 1 described in detecting in reality) and 2) be independently, the known standard wet strength agent of same is according to described step 1) operated after, the critical field data obtained can save, the contrast standard range data of the direct detection data as later similar wet strength agent to be detected, just all need not do the testing process of a standard wet strength agent at every turn.
Further illustrate, the concentration inserting wet strength agent solution to be detected in container and standard wet strength agent solution is 15-45%.Fixing within the scope of this by the concentration limits of wet strength agent solution to be detected or standard wet strength agent solution, is the concentration in order to imitate when wet strength agent solution adds in actual production.
Further illustrate, described standard wet strength agent is made up of at least one wet strength agent in Lauxite, melamine formaldehyde resin, polyethyleneimine, polyamide-epoxy chloropropane resin (PAE).
The A4 blank sheet of paper of described cardboard to be thickness be 0.1mm-1.5mm.Adopt the A4 blank sheet of paper at this thickness range Inner, be very common on the one hand, be convenient to experiment and draw materials, having can be cost-saving; That the test that this thickness range is made can reflect required result at present on the other hand.。
Further illustrate, step c) in cardboard time of immersing wet strength agent solution to be detected or standard wet strength agent solution be 1-5 minute.The soak time of cardboard in wet strength agent solution is very crucial, and the too short cardboard that cannot allow of soak time absorbs wet strength agent solution completely; Long soaking time can cause cardboard water suction excessive deformation, affects subsequent experimental operation.
Be applied to the pressurizing unit that above-mentioned wet strength agent soaks detection method, described pressurizing unit comprises about a pair just to the compression roller arranged, and top roll is rubber covered roll, and lower roll is chrome-plated roller, gives the linear pressure of 0.5-1.0kg/cm between two rollers.Wet paperboard is when extruding, and experimentally actual conditions regulate squeeze pressure, and the wet strength agent content be retained in after making to squeeze out unnecessary latex solution in wet Paper or cardboard meets designing requirement.
More excellent, be provided with adapter road immediately below described pressurizing unit, described adapter road is connected with the cavity volume of described container.Make unnecessary wet strength agent solution in wet paperboard can be recovered to container Inner, avoid waste, saved experimental cost.
Further illustrate, described step e) in the baking temperature of baking oven be 105 degree.Being limited within the scope of this by the baking temperature of baking oven, is that the requirement of reference national standard " mensuration of GB/T462 paper, cardboard and pulp analysis sample moisture " provides.
More excellent, often kind of wet strength agent to be detected needs described step 1 at least in triplicate), will mean value that three testing results the obtain detection data as wet strength agent to be detected often kind described be obtained, then with described critical field Data Comparison.By repeatedly repeatability detect, the manual operation error in testing process could be eliminated as much as possible, could be more objective and accurate detect the drafting board various performance parameters to be checked that wet strength agent solution is produced.
The present invention proposes a kind of wet strength agent according to foregoing and soaks detection method, and it imitates actual production situation, and the drafting board to be checked produced, finally according to existing paperboard properties detection method, detects that the performance data of drafting board to be checked is described detection data.Wet strength agent performance test is first detected at laboratory Inner, then the critical field data detecting data corresponding with the wet strength agent that known suitable fibers plate is produced are compared, and then judge whether wet strength agent to be detected is adapted to the production of fiberboard; Like this can when less experimentation cost, repeated multiple timesly constantly to test, until test out suitable wet strength agent formula, avoid directly by machine production testing on wet strength agent to be detected, greatly save detection and production cost.
Accompanying drawing explanation
Fig. 1 is step 1 described in the present invention) or 2) operating process schematic diagram.
Wherein: container 100, wet strength agent solution (wet strength agent solution to be detected or standard wet strength agent solution) 200, cardboard 300, wet paperboard 310, half-dried cardboard 320, drafting board 330 to be checked, baking oven 400, compression roller 500.
Embodiment
Technical scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
The detecting instrument of drafting board to be checked and detection mode and data acquisition situation is detected as follows: when 1, detecting pulling strengrth in following embodiment, adopt computer observing and controlling tensile testing machine, detect according to " mensuration of GB/T12914 paper and paperboard tensile strength " method; 2, peel strength (interfacial bonding strength) between detection layers, adopt paper and paperboard pull force calculation instrument or Paper or cardboard bursting strength detector, detect according to " mensuration of footwear test method interlaminar strength " (GB/T3903.8-2005) or " assay method of latex fiber plate interlaminar strength "; When 3, detecting deflection, adopt TMI bending break stiffness instrument, detect according to " mensuration of GB/T22364 paper and paperboard bending break stiffness "; When 4, detecting tearability, adopt electronics tearability instrument, detect according to " mensuration of GBT455-2002 paper and paperboard tearability "; When 5, detecting folding strength, adopt electronics folding strength instrument, detect according to " QB/T1472 footwear fiberboard subdues index "; When 6, detecting anti-water permeability, detect according to " QBT1662-1992 Ke Liemu absorbability analyzer ", or cut sample by standard size soak about 60min in water, measuring its thickness increases number percent and detects.
The detection of standard wet strength agent
In order to save detection time, first according to step 2 described in the present invention) the wet strength agent formula of a kind of known applicable Fibreboard Production of contents selection detect, and it is finally detected the data that obtain as critical field data, concrete steps are as follows:
The formula of standard wet strength agent is: the Lauxite of equal proportion, melamine formaldehyde resin, polyethyleneimine and polyamide-epoxy chloropropane resin (PAE) mixed liquor.
The detection of standard wet strength agent for the first time
A), compound concentration is 15% standard wet strength agent solution, and is inserted container Inner;
B), by a thickness be that the A4 blank sheet of paper of 0.8mm launches to insert container Inner, and make this blank sheet of paper of the complete submergence of standard wet strength agent solution;
C), soak 1 minute, this blank sheet of paper absorbs standard wet strength agent solution completely and becomes wet paperboard, takes out;
D), by wet paperboard tiling through pressurizing unit, unnecessary standard wet strength agent solution is removed in extruding, forms half-dried cardboard;
E), by half-dried cardboard putting into temperature is that the baking oven Inner of 105 degree is dried, and obtains drafting board to be checked;
F), treat check-out console and detect, obtain first time normal data.
The detection of second time standard wet strength agent
A), compound concentration is 20% standard wet strength agent solution, and is inserted container Inner;
B), by a thickness be that the A4 blank sheet of paper of 1.0mm launches to insert container Inner, and make this blank sheet of paper of the complete submergence of standard wet strength agent solution;
C), soak 2 minutes, this blank sheet of paper absorbs standard wet strength agent solution completely and becomes wet paperboard, takes out;
D), by wet paperboard tiling through pressurizing unit, unnecessary standard wet strength agent solution is removed in extruding, forms half-dried cardboard;
E), by half-dried cardboard putting into temperature is that the baking oven Inner of 105 degree is dried, and obtains drafting board to be checked;
F), treat check-out console and detect, obtain second time normal data.
The detection of standard wet strength agent for the third time
A), compound concentration is 30% standard wet strength agent solution, and is inserted container Inner;
B), by a thickness be that the A4 blank sheet of paper of 1.5mm launches to insert container Inner, and make this blank sheet of paper of the complete submergence of standard wet strength agent solution;
C), soak 3 minutes, this blank sheet of paper absorbs standard wet strength agent solution completely and becomes wet paperboard, takes out;
D), by wet paperboard tiling through pressurizing unit, unnecessary standard wet strength agent solution is removed in extruding, forms half-dried cardboard;
E), by half-dried cardboard putting into temperature is that the baking oven Inner of 105 degree is dried, and obtains drafting board to be checked;
F), treat check-out console and detect, obtain third time normal data.
Above-mentioned three groups of normal datas are carried out entirety and obtain normal data as shown in the table:
Table 1 critical field tables of data
Embodiment 1
The detection of wet strength agent to be detected
The distinctive points of the detection of the present embodiment and above-mentioned first standard wet strength agent is: above-mentioned standard wet strength agent is replaced to wet strength agent to be detected, and in the present embodiment, the formula of wet strength agent to be detected is: the Lauxite that certain company produces.The detection data of final the present embodiment are as shown in the table:
The detection data of table 2 embodiment 1
This table detection data and table 1 Plays range data are compared, show that in the present embodiment, wet strength agent formula is not suitable for the production of fiberboard.
Embodiment 2
The detection of wet strength agent to be detected
The distinctive points of the detection of the present embodiment and above-mentioned second standard wet strength agent is: above-mentioned standard wet strength agent is replaced to wet strength agent to be detected, and in the present embodiment, the formula of wet strength agent to be detected is: the melamine formaldehyde resin that certain company produces.The detection data of final the present embodiment are as shown in the table:
The detection data of table 3 embodiment 2
This table detection data and table 1 Plays range data are compared, show that in the present embodiment, wet strength agent formula is applicable to the production of fiberboard.
Embodiment 3
The detection of wet strength agent to be detected
The distinctive points of the detection of the present embodiment and above-mentioned 3rd standard wet strength agent is: above-mentioned standard wet strength agent is replaced to wet strength agent to be detected, and in the present embodiment, the formula of wet strength agent to be detected is: the polyamide-epoxy chloropropane resin (PAE) that certain company produces.The detection data of final the present embodiment are as shown in the table:
The detection data of table 4 embodiment 1
This table detection data and table 1 Plays range data are compared, show that in the present embodiment, wet strength agent formula is applicable to the production of fiberboard.
As can be seen from above, it is imitate actual production situation that described wet strength agent soaks detection method, and the drafting board to be checked produced, finally according to existing paperboard properties detection method, detects that the performance data of drafting board to be checked is described detection data.Wet strength agent performance test is first detected at laboratory Inner, then the critical field data detecting data corresponding with the wet strength agent that known suitable fibers plate is produced are compared, and then judge whether wet strength agent to be detected is adapted to the production of fiberboard; Like this can when less experimentation cost, repeated multiple timesly constantly to test, until test out suitable wet strength agent formula, avoid directly by machine production testing on wet strength agent to be detected, greatly save detection and production cost.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. wet strength agent soaks detection method, it is characterized in that, comprises the steps:
1) detection of wet strength agent to be detected:
A), prepare wet strength agent solution to be detected, and inserted container Inner;
B), by a piece of paper plate development insert container Inner, and make the complete submergence cardboard of wet strength agent solution to be detected;
C), absorb after wet strength agent solution to be detected becomes wet paperboard completely until cardboard, take out;
D), by wet paperboard tiling through pressurizing unit, unnecessary wet strength agent solution to be detected is removed in extruding, forms half-dried cardboard;
E), by half-dried cardboard put into baking oven Inner to dry, obtain drafting board to be checked;
F), treat check-out console and detect, obtain detecting data;
2), the detection of standard wet strength agent:
G), by described step 1) in wet strength agent solution to be detected change the standard wet strength agent solution of applicable Fibreboard Production into, and according to described step a)-f) carry out repeated detection, and obtain critical field data;
3), by described detection data and critical field data compare, reach a conclusion.
2. wet strength agent according to claim 1 soaks detection method, it is characterized in that, described step 1) and 2) in no particular order.
3. wet strength agent according to claim 1 soaks detection method, it is characterized in that, the latex concentration inserting wet strength agent solution to be detected in container and standard wet strength agent solution is 15-45%.
4. wet strength agent according to claim 1 soaks detection method, it is characterized in that, described standard wet strength agent is made up of at least one wet strength agent in Lauxite, melamine formaldehyde resin, polyethyleneimine, polyamide-epoxy chloropropane resin (PAE).
5. wet strength agent according to claim 1 soaks detection method, it is characterized in that, the A4 blank sheet of paper of described cardboard to be thickness be 0.1mm-1.5mm.
6. wet strength agent according to claim 1 soaks detection method, it is characterized in that, step c) in cardboard time of immersing wet strength agent solution to be detected or standard wet strength agent solution be 1-5 minute.
7. be applied to the pressurizing unit that wet strength agent according to claim 1 soaks detection method, it is characterized in that, described pressurizing unit comprises about a pair just to the compression roller arranged, and top roll is rubber covered roll, and lower roll is chrome-plated roller.
8. wet strength agent according to claim 7 soaks detection method, and it is characterized in that, be provided with adapter road immediately below described pressurizing unit, described adapter road is connected with the cavity volume of described container.
9. wet strength agent according to claim 1 soaks detection method, it is characterized in that, the baking temperature of described e) middle baking oven is 105 degree.
10. wet strength agent according to claim 1 soaks detection method, it is characterized in that, often kind of wet strength agent to be detected needs described step 1 at least in triplicate), to mean value that three testing results the obtain detection data as wet strength agent to be detected often kind described be obtained, then with described critical field Data Comparison.
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Citations (5)
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| US5958187A (en) * | 1994-03-18 | 1999-09-28 | Fort James Corporation | Prewettable high softness paper product having temporary wet strength |
| CN103524708A (en) * | 2013-10-16 | 2014-01-22 | 上海东升新材料有限公司 | Preparation method of closed water-based polyurethane modified PAE (polyarylether) wet strength agent |
| CN104198368A (en) * | 2014-09-26 | 2014-12-10 | 攀钢集团钛业有限责任公司 | Quantitative analysis method for melamine decorative paper |
| CN104422758A (en) * | 2013-09-05 | 2015-03-18 | 金红叶纸业集团有限公司 | Test method for water solubility of wet strength paper |
-
2015
- 2015-12-25 CN CN201511000772.6A patent/CN105445446A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5958187A (en) * | 1994-03-18 | 1999-09-28 | Fort James Corporation | Prewettable high softness paper product having temporary wet strength |
| CN2298275Y (en) * | 1997-07-07 | 1998-11-25 | 孙厚芝 | Multipurpose compound paper machine |
| CN104422758A (en) * | 2013-09-05 | 2015-03-18 | 金红叶纸业集团有限公司 | Test method for water solubility of wet strength paper |
| CN103524708A (en) * | 2013-10-16 | 2014-01-22 | 上海东升新材料有限公司 | Preparation method of closed water-based polyurethane modified PAE (polyarylether) wet strength agent |
| CN104198368A (en) * | 2014-09-26 | 2014-12-10 | 攀钢集团钛业有限责任公司 | Quantitative analysis method for melamine decorative paper |
Non-Patent Citations (2)
| Title |
|---|
| 张明锋等: "纸张湿强剂PAE的合成条件及性能测试的研究", 《化工管理》 * |
| 第5期: "高固含量湿强剂的制备及应用", 《造纸科学与技术》 * |
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Application publication date: 20160330 |