CN103102765A - Rolling cover - Google Patents
Rolling cover Download PDFInfo
- Publication number
- CN103102765A CN103102765A CN2012103752129A CN201210375212A CN103102765A CN 103102765 A CN103102765 A CN 103102765A CN 2012103752129 A CN2012103752129 A CN 2012103752129A CN 201210375212 A CN201210375212 A CN 201210375212A CN 103102765 A CN103102765 A CN 103102765A
- Authority
- CN
- China
- Prior art keywords
- roller
- coating
- epoxy resin
- roller coating
- present
- 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.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/08—Pressure rolls
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/10—Suction rolls, e.g. couch rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention relates to a rolling cover. The rolling cover comprises a epoxy-containing composition and has Shores D hardness of 75-85. An independent claim is included for fiber web machine roll, comprising a roll body and a rolling cover disposed thereon and according to the invention.
Description
Technical field
The present invention relates to a kind of roller coating, a kind of coating that is applicable to roller particularly, it is used in the production technique of papermaking, cardboard, toilet paper (tissue), Mierocrystalline cellulose or other fiber web.The invention still further relates to a kind of roller that is provided with described coating.
Background technology
In papermaking, cardboard and Mierocrystalline cellulose are made in polymer roll coating used, the main polymkeric substance that belongs to three kinds of different primary categories, i.e. rubber, urethane and the epoxy resin of using.The softest in them is various rubber, and it is in the durometer level of rubber, and the urethane that comprises rubber is harder, and epoxy resin is the hardest.Epoxy resin usually and fortifying fibre or weighting material together be used in the roller coating.The polymer materials that uses has covered sizable durometer level, but also exists very little durometer level between urethane and epoxy resin, can't find suitable material at present to this.
The current durometer level that is easy to realize that is used in the urethane in the polymer roll coating can reach about 75 Shore D hardness.And the durometer level of normally used epoxy resin starts from about 85 Shore D hardness (P﹠amp; J hardness is about 3).Yet, the durometer level (P﹠amp of the 75-85 Shore D between them; J durometer level 5-3) be also useful, and be desirably in the roller coating of paper machine press part for example and use in the cardboard rolling press.For the durometer level of 75-85 Shore D, also found the substance solution of multiple polymers form, for example thermoplastics, rubber (vulcanite) and epoxy resin and urethane.Yet other differing materials of this durometer level is unsuitable for as the roller clad material because they be difficult to process or their characteristic not enough.
It has been determined that the characteristic based on the roller coating of epoxy resin has satisfied the demand of paper industry well, and this coating is used in also in a large amount of branches field.Roller coating based on epoxy resin is generally fibre-reinforced, so-called composite roll coating, that is to say, except epoxy resin, it also comprises fortifying fibre, for example glass fibre, carbon fiber, nylon fiber or trevira.This composite roll coating has good anti-complaisance, stability and minimum hysteresis.The composite roll coating is used in the rolling press pressure roller usually, be used in the grooved roller of nip and suction roll and be used in web guiding roller.
Described a kind of method for the manufacture of the pressure roller coating in document WO94/09208, wherein epoxy resin and weighting material are mixed with each other and this mixture is applied on strongthener subsequently.The strongthener that comprises epoxy resin and weighting material is wound onto on pressure roller.
Based on the composite roll coating of epoxy resin hard cladding normally, by its can't realize wider nip (in this nip pressure-acting lengthen, be generally along machine direction on the long fiber web band of 25-300mm).In some applications, expectation becomes large nip length (for example being 30-200mm or 50-150mm) along machine direction.Thus, for example strengthened the draining on the pressure roller, and can realize when press polish the expectation the web surface property and can not affect loft.The cardboard rolling press, particularly in the machine of (approximately 600m/min or slower) at a slow speed work and the mass area ratio of fiber web be 80-200g/m
2Situation under, have the extremely special demand to the coating with such elasticity (namely realizing adding long nip press and having simultaneously good thermal stability property along machine direction).
In paper industry, there is the more obvious demand of the composite roll coating (show the Shore D hardness of 75-85 and can produce in simple, efficient and economic mode) that provides softer than current composite roll coating.
Summary of the invention
At this, unexpectedly determine, can be by epoxy resin modification being obtained the epoxy resin roller coating softer than current composite roll coating, that has realized thus expectation is the Shore D durometer level of 75-85.The distinctive material behavior of epoxy resin that has kept simultaneously the other side of expectation, for example thermotolerance and toughness.
One aspect of the present invention relates to a kind of roller coating, and it has the composition that comprises necessary epoxy resin and has the Shore D hardness of 75-85.
By adding multi-functional reactive thinner to carry out modification to epoxy resin, obtain thus described hardness.Due to thinner, strengthened elastic epoxy resin on the roller body that is made of metal adhesivity and significantly reduced the viscosity of epoxy resin, simplified thus epoxy resin be processed into the roller coating.Importantly, the second-order transition temperature (Tg) of the roller coating of being made by the epoxy resin of modification keeps enough height, is at least 120 ℃.
Can be made according to current composite roll coating manufacture method by elastic composition epoxy resin according to roller coating of the present invention.By elastic epoxy resin, can cover the new durometer level that can't be realized by the epoxy resin of current use.
A second aspect of the present invention relates to a kind of roller of fiber web machine, it comprise roller body and arrange thereon according to roller coating of the present invention.
Description of drawings
Fig. 1 has schematically shown a kind of system, wherein according to roller according to the present invention 10 with another roller 20 relatively arranges and fiber web is advanced by the nip N that is made of two rollers.
Embodiment
One aspect of the present invention relates to a kind of roller coating, and it has the composition that comprises necessary epoxy resin and has the Shore D hardness of 75-85.
Make the epoxy resin elastification by with the polyfunctional group thinner, epoxy resin being carried out modification.Term " composition that comprises elastic epoxy resin " or " elastic epoxy oil/fat composition " represent the epoxy resin with the modification of polyfunctional group thinner herein.Term " multi-functional thinner " is interpreted as and comprises more than two dilutions with the reactive group of epoxy resin reaction.Can consider the group of various epoxy resin reactions with paying close attention to as reactive group, for example amine groups, epoxide group or isocyanate groups.
As the polyfunctional group thinner, can use in the present invention aliphatics, aromatic series or alicyclic hydrocarbon, it is characterized by and have long carbochain.In one embodiment of the invention, the polyfunctional group thinner contains aliphatic hydrocarbon.Epoxy resin obtains elastic properties by long carbochain.Be not for restrictedly, the polyfunctional group thinner can or be made by the epoxidation Viscotrol C by the triglycidyl ether of propoxylated glycerol, and its chemical formula is as follows.
The triglycidyl ether epoxidation Viscotrol C of propoxylated glycerol
In the present invention, the commerical prod that available thinner can be used as many factories obtains, for example from CVC Thermoset Specialties and Hexion.
The component of functional thinner in composition epoxy resin is generally 10-30 weight percent (amount based on epoxy resin is calculated).
For roller coating according to the present invention, can use arbitrarily the common in the art epoxy resin for the manufacture of the composite roll coating, for example based on the epoxy resin of dihydroxyphenyl propane or Bisphenol F.In one embodiment of the invention, use is based on the epoxy resin of dihydroxyphenyl propane.
For roller coating according to the present invention, can use arbitrarily the common in the art epoxy resin hardener for the manufacture of the composite roll coating.The example of suitable stiffening agent is aliphatics, alicyclic and aromatic amine, for example aliphatic simple function group amine and polyfunctional group amine or alicyclic or aromatic diamines.
In another embodiment of the invention, the roller coating comprises elastic composition epoxy resin, and it comprises the polyfunctional group reactive thinner of bisphenol A epoxide resin and 10-30%.
In one embodiment of the invention, the roller coating has fabric reinforcement.Can consider the common fiber that uses, for example glass fibre, carbon fiber, nylon fiber or trevira arbitrarily as fortifying fibre in the composite roll coating.
Fiber can and/or be included in the roller coating as rove with the form of staple fibre, woven or non-woven fabrics.Non-woven fibre is used with the form of non-woven fabrics, non-woven mat or nonwoven tweed usually.In the present invention, cloth, felt and tweed are interpreted as continuous sheet material or the strip material of being made according to non-woven technology by fiber arbitrarily.Cloth can have one or more layers in coating.Fiber can be with multiple multi-form the existence, for example as staple fibre or upholder in the roller coating.
Roller coating according to the present invention can comprise more than only a kind of fiber.For example, macrofiber or support fiber or upholder can be made of identical or different filamentary material.
Roller coating according to the present invention also can comprise one or more weighting materials.Without limitation, weighting material can be made of inorganic metal, weighting materials (for example silicon-dioxide, silicon carbide, aluminum oxide, boride, titanium dioxide, zirconium dioxide, silica, chalk, carbon black, boron nitride or carbon nanotube) pottery or mineral, and it can exist with different particle form, such as powder, bead, pearl, fiber, sheet etc.Also can consider organic weighting material, synthetic polymkeric substance (as the UHMWPE(ultrahigh molecular weight polyethylene(UHMWPE)), tetrafluoroethylene for example), synthon (as aliphatics or aromatic polymeric amide), and it can exist with the form of staple fibre, fiber fragment or powder.Weighting material component in the roller coating can be the 0.01-50 weight percent usually.The weighting material component is preferably the highest by 20%.The filler particle size can be from nano-scale to 200 μ m.
A second aspect of the present invention relates to a kind of roller of fiber web machine, it comprise roller body and be located thereon according to roller coating of the present invention.The roller of fiber web machine is nip roll in particular, for example rolling press roller, pressure roller or suction roll.In one embodiment of the invention, the roller of fiber web machine is constructed to the rolling press roller.
The roller of fiber web machine can comprise the single or multiple lift form according to roller coating of the present invention.If roller has multilayered coating, outermost layer (namely with fiber web or with the tectum of the clothing in contact that supports fiber web) preferably consisted of by roller coating according to the present invention.According to one embodiment of the present invention, roller comprises two-layer coating, the tectum of its central roll is made of roller coating according to the present invention, is made of other clad material (for example not having the epoxide resin material according to thinner modification of the present invention) and be in metal column the internal layer that contacts.
Fig. 1 schematically shows a kind of equipment, and wherein fiber web W is conducted through the nip N that is made of two rollers 10,20.Roller 10 comprise roller body 1 and arrange thereon according to roller coating 2 of the present invention.Roller body is made of metal usually, for example is made of cast iron or steel.Roller can be rolling press roller or pressure roller, and wherein web W to be launched and roller 10,20 surface directly contact.Coating 2 is level and smooth in this case.Roller also can be made of suction roll, and wherein having vacuum and roller shell 1 in the inside of roller is porose suction function is passed to the web W by one or two (not shown) fabric-supported in being directed to nip.In this case, the roller coating is certainly also the same with roller shell is porose.In addition, roller can be pressure roller, and web W is dewatered by it and improves its dried content.In this case, web W is also with in one or both sides are directed into nip N by the mode of fabric-supported.The coating of pressure roller can be smooth, for example the coating of center pressure roller.Coating also can be provided with recess, for example blind hole and/or groove, and it is used for improving the drainage performance of nip.Groove is 0.3-15mm along circumferential extension and the width of coating, and the degree of depth is 0.5-50mm, and spacing each other is generally 1-200mm.Coating should have sufficiently high hardness, thus groove in the situation that heavy load keep its shape and and then can receive when roller rotates and derive from the amount of the water of web extrusion in nip.Simultaneously, coating must also have suitable elasticity, and thus, the nip that contacts with roller 20 suitably extends along machine direction, thereby has further increased drainage performance.
Can realize according to method commonly used in the manufacturing of composite roll coating according to the manufacturing of roller coating of the present invention.The roller coating can be for example with following step manufacturing:
-polyfunctional group thinner, epoxy resin and stiffening agent and possible weighting material and auxiliary agent are mixed to obtain elastic composition epoxy resin;
-fabric reinforcement is coated on the surface of roller of rotation;
-with the wetting fabric reinforcement of elastic composition epoxy resin to consist of coating;
-under the condition of 50-200 ℃, coating is heat-treated.
In a kind of preferred implementation of the present invention, heat-treat at the temperature of 90-160 ℃.
In one embodiment of the invention, fiber is applied on roller with the form (preferably as the arrowband by reeling) of non-woven fabrics.Cloth can be applied under the state of drying on roller and wetting by spraying epoxy resin ingredient when reeling.Yet, cloth also can be on being wound on roller before separately by spraying or being immersed in basin and wetting.
The technician should be appreciated that the expansion by technology, and basic conception of the present invention can be realized in many ways.Therefore, the present invention and embodiment thereof are not limited to above-mentioned example, but can change in the scope of patent claims.
Claims (11)
1. roller coating, it has the composition and the Shore D hardness that comprise epoxy resin is 75-85.
2. according to roller coating claimed in claim 1, wherein said epoxy resin is by multi-functional thinner modification.
3. according to roller coating claimed in claim 2, wherein said multi-functional thinner is made of aliphatic hydrocarbon.
4. according to the described roller coating of claim 2 or 3, the content of wherein said multi-functional thinner in epoxy resin ingredient is the 10-30 weight percent, calculates based on the amount of epoxy resin.
5. according to the described roller coating of any one in aforementioned claim, it comprises fabric reinforcement.
6. the roller of fiber web machine, it has roller body and the described roller coating of any one in thereon claim 1 to 5 is set.
7. according to roller claimed in claim 6, its surface is have groove, porose and/or blind hole is arranged.
8. according to roller claimed in claim 7, the width of its groove is 0.3-15mm, and the degree of depth is 0.5-50mm.
9. according to the described roller of claim 7 or 8, it is constructed to pressure roller or suction roll.
10. according to roller claimed in claim 6, it has smooth surface.
11. according to roller claimed in claim 10, it is constructed to pressure roller or rolling press roller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20115952A FI20115952L (en) | 2011-09-29 | 2011-09-29 | Track coating |
| FI20115952 | 2011-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103102765A true CN103102765A (en) | 2013-05-15 |
Family
ID=44718857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103752129A Pending CN103102765A (en) | 2011-09-29 | 2012-09-29 | Rolling cover |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103102765A (en) |
| DE (1) | DE102012217413A1 (en) |
| FI (1) | FI20115952L (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358764A (en) * | 2013-07-04 | 2016-02-24 | 福伊特专利有限公司 | Roll cover with low surface energy |
| CN113167027A (en) * | 2018-12-04 | 2021-07-23 | 安德里茨库斯特斯有限责任公司 | Roller and method for manufacturing roller |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018122779A1 (en) * | 2018-09-18 | 2020-03-19 | Voith Patent Gmbh | Press jacket, its use as well as press roll and shoe press |
| DE102018122780A1 (en) * | 2018-09-18 | 2020-03-19 | Voith Patent Gmbh | Press jacket, its use as well as press roll and shoe press |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003160672A (en) * | 2001-09-13 | 2003-06-03 | Sanyo Chem Ind Ltd | Resin composition for roll and resin roll |
| CN1608177A (en) * | 2001-12-26 | 2005-04-20 | 山内株式会社 | Fiber-reinforced resin roll and method of manufacturing the roll |
| CN1887956A (en) * | 2006-07-25 | 2007-01-03 | 武汉昌辉科技开发有限公司 | Green elastic epoxy grouting material and its preepn |
| WO2009100758A1 (en) * | 2008-02-12 | 2009-08-20 | Metso Paper, Inc. | Roll covering |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0664843B1 (en) | 1992-10-16 | 1997-10-29 | Beloit Technologies, Inc. | A method of manufacturing a cover for a press roll |
-
2011
- 2011-09-29 FI FI20115952A patent/FI20115952L/en not_active Application Discontinuation
-
2012
- 2012-09-26 DE DE102012217413A patent/DE102012217413A1/en not_active Withdrawn
- 2012-09-29 CN CN2012103752129A patent/CN103102765A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003160672A (en) * | 2001-09-13 | 2003-06-03 | Sanyo Chem Ind Ltd | Resin composition for roll and resin roll |
| CN1608177A (en) * | 2001-12-26 | 2005-04-20 | 山内株式会社 | Fiber-reinforced resin roll and method of manufacturing the roll |
| CN1887956A (en) * | 2006-07-25 | 2007-01-03 | 武汉昌辉科技开发有限公司 | Green elastic epoxy grouting material and its preepn |
| WO2009100758A1 (en) * | 2008-02-12 | 2009-08-20 | Metso Paper, Inc. | Roll covering |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105358764A (en) * | 2013-07-04 | 2016-02-24 | 福伊特专利有限公司 | Roll cover with low surface energy |
| CN113167027A (en) * | 2018-12-04 | 2021-07-23 | 安德里茨库斯特斯有限责任公司 | Roller and method for manufacturing roller |
| CN113167027B (en) * | 2018-12-04 | 2023-08-29 | 安德里茨库斯特斯有限责任公司 | Roller and method for manufacturing roller |
Also Published As
| Publication number | Publication date |
|---|---|
| FI20115952L (en) | 2013-03-30 |
| DE102012217413A1 (en) | 2013-04-04 |
| FI20115952A0 (en) | 2011-09-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Espoo, Finland Applicant after: Veimeide Technology Co., Ltd. Address before: Helsinki Applicant before: Metso Paper Inc. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: METSO PAPER INC. TO: VEIMEIDE TECHNOLOGY CO., LTD. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130515 |