CN1490151A - Polymer film winding method and cold roll - Google Patents

Polymer film winding method and cold roll Download PDF

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Publication number
CN1490151A
CN1490151A CNA031581625A CN03158162A CN1490151A CN 1490151 A CN1490151 A CN 1490151A CN A031581625 A CNA031581625 A CN A031581625A CN 03158162 A CN03158162 A CN 03158162A CN 1490151 A CN1490151 A CN 1490151A
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CN
China
Prior art keywords
film
polymer film
thin polymer
cold roller
winding
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
Application number
CNA031581625A
Other languages
Chinese (zh)
Inventor
�ش�¡
重村隆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
Original Assignee
Fujifilm Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Publication of CN1490151A publication Critical patent/CN1490151A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00Special constructions, e.g. surface features, of feed or guide rollers for webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00Winding webs
    • B65H18/08Web-winding mechanisms
    • B65H18/26Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/10Materials
    • B65H2401/11Polymer compositions
    • B65H2401/111Elastomer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/18Rollers composed of several layers
    • B65H2404/185Rollers composed of several layers easy deformable

Landscapes

  • Winding Of Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

A capacity resistivity of a surface material 13b of a lay-on roll 13 is set to 10<SP>2</SP>[Omega]cm or more and 10<SP>12</SP>[Omega]cm or less, and hardness of the surface material 13b of the lay-on roll 13 is set to 30 degrees or more and 70 degrees or less, so as to reduce charging and adhesion of foreign matter of the film. A material excellent in ozone resistance is used to the surface material 13b of the lay-on roll 13, so as to prevent deterioration of the surface material, and prevent charging and black bond failure. A take-up speed of the film is set to 30 m/minute or more, and film thickness at the time of taking up the film is set to 125 [mu]m or less, so as to enlarge an effect of this invention.To prevent exfoliation charging by a rayon roll in taking up a film.

Description

The method for winding of thin polymer film and cold roller
Technical field
The present invention relates to the method for winding of thin polymer film and the cold roller that is adopted.
Background technology
Acylated cellulose film, particularly acetyl cellulose film are widely used on electronic console purposes, photo support purposes, other optical applications.Particularly, along with the development rapidly of electronic console purposes, more and more require its filming in recent years, need further increase productivity for these films.
Acylated cellulose film is made by solution casting method usually.In this solution casting method; acylated cellulose and plasticizer, UV absorbent, lubricant and other additives together be dissolved in make thick solution in the solvent; make then this thick solution from the mould curtain coating on annular supports such as band (band), cylinder; and solution is solidified solvent seasoning; peel off from supporter then, further make film after the drying.
Along with the acceleration day by day of speed of production, in product coiling portion, because air related is difficult to carry out stable coiling.Because being involved in of related air, the difference that the diameter up and down of film roll can take place becomes big fault (below, be referred to as loose coiling) or the fault (below, be referred to as depression) of hollow takes place on the top of film roll.Speed of production is fast more, film thickness is thin more, and this fault takes place more significantly.
As the method for getting rid of this related air, when coiled film, utilize cold roller (レ イ オ Application ロ-Le) to volume core side extrusion film.(for example, with reference to patent documentation 1).By this method, can be formed on the film roll that has uniform air layer thickness between the pellicular front.
[patent documentation 1]
The spy opens 2002-68535 communique (the 2nd page~the 4th page)
But if use cold roller, then by the contacting and peeling off of film and cold roller, wound film can be charged, and inhale by electrostatic interaction and poly-ly to swim in airborne impurity, and become the reason of impurity fault.In addition, as the method for electrically that removes of film, what adopt at present is, remove electrical equipment generation ion with the formula of adding, and this ion and roller shape film as product are bumped against, thereby remove the method for electricity, but in this mode, cause the deterioration of the rubber on cold roller surface reeling indoor generation ozone.Thus, the volume resistance of rubber surface increases, and electrification phenomenon is more serious.And the hardness of rubber uprises, the substrate deformation fault that has occurred the underworld shape on the circumferencial direction of film roll (below, be called the black-tape fault).
Summary of the invention
The present invention proposes in order to address the above problem, it is charged that its purpose is taken place by peeling off of cold roller when being to be suppressed at coiled film, do not have the thin polymer film of impurity fault simultaneously with high-quality manufacturing with the coiling stable posture that makes film roll when the high-speed production.
In order to achieve the above object, among the present invention,, be 10 by using specific insulation as the surface material of cold roller 2Ω cm above 10 12Following and the hardness of Ω cm is the following rubber of above 70 degree of 30 degree, prevents the charged of film.
In addition,, can prevent the deterioration of surface material, also can prevent charged or black-tape fault by the material of ozone resistance excellence being used as the surface material of described cold roller.
In addition, the winding speed of described film preferably divides below the above 200m/ branch at 30m/, more preferably divides below the above 100m/ branch at 30m/.In addition, the thickness the during coiling of described film is preferably below 125 μ m more than the 20 μ m, more preferably below 85 μ m more than the 20 μ m.In addition, the thrust of the described cold roller the during coiling of described film is preferably below the above 100N of 10N.Also have, described thin polymer film is preferably acylated cellulose film.
Description of drawings
Fig. 1 is the scheme drawing of the winding film portion of the embodiment of the invention.
Fig. 2 is the instruction diagram of the cold roll structure of expression.
Fig. 3 is the lateral plan of film roll of the mensuration benchmark of explanation coiling hardness.
Fig. 4 is block diagram and the front view that the film roll of the degree of depth that caves in is described.
Fig. 5 is the front view of the film roll of explanation black-tape fault.
Among the figure, 11-thin polymer film, 12-film roll, the cold roller of 13-, 13b-surface material
The specific embodiment
Fig. 1 is the scheme drawing of the winding film portion of the embodiment of the invention.Volume core 10 is set on the winding film machine, and is driven by not shown motor drives rotation.Thus, thin polymer film 11 is wound onto on the volume core 10 gradually, becomes film roll 12.
Cold roller 13 is installed into and rotates freely, so that itself and film roll 12 limit contact edges rotate.This cold roller 13 constitutes by hold-down mechanism 14, to volume core 10 side compression thin polymer films 11.Thus, when thin polymer film 11 is reeled, the air that film 11 carries can be got rid of, the film roll 12 that has uniform air layer thickness between the film can be formed on.
As shown in Figure 2, cold roller 13 is to cover the NBR rubber of (lining) ozone resistance excellence to constitute as surface material 13b on the surface of metallic roller main body 13a such as SS, SUS.In this surface material 13b, add additive etc. and adjust, so that its hardness for example is that 40 degree, specific insulation are 10 8Ω cm.As roller, there is Co., Ltd. to add and passes through the white EC240NS that roller is made manufacturing with this surface material 13b.In addition, the mensuration of hardness is to carry out according to JIS K6253, and the mensuration of specific insulation is to carry out according to JIS K6271.
As the surface material 13b of cold roller 13, preferably use specific insulation 10 2Ω cm above 10 12Below the Ω cm, more preferably use 10 4Ω cm above 10 8Below the Ω cm.In addition, preferably using hardness is below 30 degree above 60 are spent, and more preferably uses below above 50 degree of 35 degree.In addition, the surface material 13b of cold roller 13 preferably uses the material of ozone resistance excellence.
In addition, the winding speed of thin polymer film 11 is preferably more than the 30m/ branch.And the thickness when the coiling of thin polymer film 11 is under the situation below the 125 μ m, and the low especially easy deformation of membrane rigidity is so effect of the present invention is remarkable, preferred.More preferably below 85 μ m, particularly preferably be below 65 μ m.In addition, the thrust of the cold roller 13 during coiling thin polymer film 11 is desirable below the above 80N of 20N.Be more preferably below the above 60N of 30N.In addition, the coil diameter variation according to film roll 12 is changed to preferably the thrust of cold roller 13 continuously in the scope of 60N to 30N.
There is no particular limitation for the shape of cold roller 13, also can use the cold roller 13 of tapering portion.At this moment, act on thrust on the contact surface of thin polymer film 11 and cold roller 13 preferably below the above 60N of 30N.
In addition, be applicable to that the material of the film among the present invention has no particular limits, for example can use cellulose acetates such as cellulose triacetate, the plastic sheeting of polyester such as polyethylene terephthalate, PEN etc. etc.As product and the wound film roller, its width is about 600~3500mm, is generally about 1000~1600mm, thickness is about 25~250 μ m, be generally about 30~100 μ m, coiling length is about 500~10000m, is generally about 2000~6000m.
In addition, two ears (both side ends) at the thin polymer film of reeling are formed with the embossing (knurling) that is made of projection or recess etc. as everyone knows, and the shape of this embossing also has no particular limits, and can use different shape.
Embodiment
Below, exemplify embodiment and explain the present invention, but the present invention is not limited to following embodiment.
[embodiment 1]
In winding film device shown in Figure 1, use cold roller 13, implemented the coiling of acetyl cellulose film.The winding speed of film is the 35m/ branch, and the thickness of film is 40 μ m, and thin-film width is 1336mm, and the thrust of cold roller 13 is 35N.As the surface material 13b of cold roller 13, (add the roller system of passing through: white EC240NS, hardness 40 is spent specific insulation 10 to have used NBR rubber 8Ω cm).
[embodiment 2]
Except surface material 13b, the NBR rubber (Jinyang society system: 37H50S, hardness 50 degree, the specific insulation 10 that add carbon have been used as cold roller 13 5Ω cm) in addition, implemented the coiling of film in the same manner with embodiment 1.
[comparative example 1]
Except surface material 13b, the NBR rubber (Jinyang society system: 31G40W, hardness 40 degree, the specific insulation 10 that do not add carbon have been used as cold roller 13 16Ω cm) in addition, implemented the coiling of film in the same manner with embodiment 1.
[comparative example 2]
Except surface material 13b, the NBR rubber (Jinyang society system: 37H80S, hardness 80 degree, the specific insulation 10 that add carbon have been used as cold roller 13 5Ω cm) in addition, implemented the coiling of film in the same manner with embodiment 1.
[comparative example 3]
Except not using cold roller 13, implemented the coiling of film in the same manner with embodiment 1.
[evaluation of film roll]
In embodiment 1,2 and comparative example 1~3, the film roll 12 that the coiling acetyl cellulose film is formed has been carried out various quality evaluations.Below, the various assessment items of the adhering to of carried charge, coiling hardness, depression, black-tape fault, impurity, cold roller deterioration are described.
[evaluation of carried charge]
The mensuration of carried charge is to use シ シ De static gas (strain) system: STATIRON-DZ 3Carry out.And the few more evaluation film roll 12 of carried charge is excellent more.By the measurement result of carried charge, estimate according to table 1 classification.
Table 1
Carried charge Judge
Be less than ± 1.0kV ????◎
± 1.0kV is above and be less than ± 3.0kV ????○
± 3.0kV is above and be less than ± 7.0kV ????△
More than ± the 7.0kV ????×
[evaluation of coiling hardness]
As shown in Figure 3, the evaluation of coiling hardness is, poor (LD-LU) in the upper length LU of the winding diameter by measuring film roll 120 and the footpath up and down of lower length LD carries out.And the difference of diameter is more little up and down, and the coiling hardness of estimating film roll 120 is excellent more.By the measurement result of diameter difference up and down, estimate according to table 2 classification.
Table 2
The footpath is poor up and down Judge
Less than 3mm ????○
3mm is above less than 10mm ????△
More than the 10mm ????×
[evaluation of depression ]
The evaluation of the depression 22 of the film roll 121 shown in Fig. 4 (A) is shown in Fig. 4 (B), to be undertaken by the depth D 1 of measuring depression 22.The depth D 1 of depression 22 is to try to achieve by the distance between the non-concave face of representing with long and two-short dash line among depression the best part and the figure in the concave face of representing with solid line among the mensuration figure.The film roll that the depth D 1 of preferred depression 22 is less.By the measurement result of depression 22 depth D 1, estimate according to table 3 classification.
Table 3
Cup depth Judge
????3mm ????○
3mm is above less than 10mm ????△
More than the 10mm ????×
[evaluation of black-tape fault]
With the naked eye in the film roll shown in the controlling chart 5 125 whether black-tape fault 26 having taken place, and has been estimated by having or not of fault.And what do not have the black-tape fault is preferred.
[evaluation that impurity adheres to]
On film roll, shine stroboscope (stroboscope) light, with the naked eye check the number that is rolled into the impurity on 1 circle of film roll surface.And, impurity to adhere to number few more preferred more.Adhere to the measurement result of number by impurity, estimate according to table 4 classification.
Table 4
Impurity adhere to number Judge
0~2 ????◎
3~5 ????○
6~10 ????△
11~ ????×
[the deterioration evaluation of cold roller]
Deterioration for cold roller 13, after cold roller 13 uses 1 month, whether inspection on cold roller 13 crack has taken place, and whether 6 months inspection afterwards of cold roller 13 uses the black-tape fault has been taken place on film roll 12, is estimated by crack and having or not of black-tape fault at last.In addition, ozone evaluation as elastomeric material is, according to JIS K6259, is to carry out under 50pphm, 40 ℃ of temperature, the condition of 48 hours exposure durations at ozone concentration, and be that using with the naked eye to estimate afterwards in 1 month has free from flaw to carry out in the deterioration evaluation of in-process.Wherein, do not have crack and black-tape fault for preferred.
[comprehensive evaluation of film roll]
To formed each film roll 12 in embodiment 1,2 and comparative example 1~3,, carried out the comprehensive evaluation shown in the table 5 according to the judgement of above-mentioned assessment item.
Carried charge Coiling hardness Depression The black-tape fault Adhering to of impurity The deterioration of cold roller
Embodiment 1 Do not have Do not have
Embodiment 2 Do not have Have
Comparative example 1 × Do not have × Have
Comparative example 2 Have Have
Comparative example 3 × × Do not have -
As mentioned above, in embodiment 1, in all assessment items, all obtained good result.In addition, in embodiment 2, there is the deterioration of cold roller, the black-tape fault is arranged during long-term use, but, then can obtain good cold roller 12 if avoid long-term use.On the other hand, in comparative example 1~3, can't obtain good cold roller 12.
As described above, according to the method for winding and the cold roller of thin polymer film of the present invention, owing to the surface material as cold roller, having used specific insulation is 10 2Ω cm above 10 12Ω cm is following, hardness is the following rubber of above 70 degree of 30 degree, so can produce the charged few of film, adhering to of impurity is few, and coiling posture excellence, has high-production thin polymer film.
And, because of the surface material as cold roller has used the material of ozone resistance excellence, thus the deterioration of surface material can be prevented, and can prevent charged or the black-tape fault.
In addition, be more than 30m/ divides by the winding speed that makes film, the thickness the during coiling of film is below the 125 μ m, can improve effect of the present invention.In addition, the thrust of the cold roller when making winding film can be produced the film roll of coiling posture excellence below the above 100N of 10N.

Claims (7)

1, a kind of method for winding of thin polymer film is to use cold roller with the method for winding of thin polymer film with the thin polymer film of roller shape coiling, it is characterized in that as the surface material of described cold roller, using specific insulation is 10 2Ω cm above 10 12Following and the hardness of Ω cm is the following rubber of above 70 degree of 30 degree.
2, the method for winding of thin polymer film according to claim 1 is characterized in that, the surface material of described cold roller is the material of ozone resistance excellence.
3, the method for winding of thin polymer film according to claim 1 and 2 is characterized in that, the winding speed of described film is more than 30m/ divides.
According to the method for winding of any described thin polymer film in the claim 1~3, it is characterized in that 4, the thickness the during coiling of described film is below 125 μ m.
According to the method for winding of any described thin polymer film in the claim 1~4, it is characterized in that 5, the thrust of described cold roller is located at below the above 100N of 10N when reeling described film.
According to the method for winding of any described thin polymer film in the claim 1~5, it is characterized in that 6, described thin polymer film is an acylated cellulose film.
7, a kind of cold roller of wind2 of thin polymer film, be when thin polymer film is reeled with the roller shape, be configured to the cold roller of the wind2 of the thin polymer film that contacts with the outer peripheral face of the roller shape film of reeling, it is characterized in that, as the surface material of described cold roller, using specific insulation is 10 2Ω cm above 10 12Following and the hardness of Ω cm is the following rubber of above 70 degree of 30 degree.
CNA031581625A 2002-09-19 2003-09-15 Polymer film winding method and cold roll Pending CN1490151A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002273848A JP3955518B2 (en) 2002-09-19 2002-09-19 Polymer film winding method
JP2002273848 2002-09-19

Publications (1)

Publication Number Publication Date
CN1490151A true CN1490151A (en) 2004-04-21

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US (1) US20040056139A1 (en)
JP (1) JP3955518B2 (en)
CN (1) CN1490151A (en)

Cited By (1)

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CN102530609A (en) * 2010-09-30 2012-07-04 富士胶片株式会社 Film winding device and method for making optical film employing the same

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JP4217119B2 (en) * 2003-07-17 2009-01-28 富士フイルム株式会社 Solution casting equipment and method
JP5507335B2 (en) * 2009-05-20 2014-05-28 富士フイルム株式会社 Functional film manufacturing method and manufacturing apparatus
JP5247641B2 (en) 2009-09-18 2013-07-24 富士フイルム株式会社 Method for bonding gas barrier film and electronic device, electronic device and method for manufacturing the same
JP5421837B2 (en) * 2010-03-30 2014-02-19 富士フイルム株式会社 Web winding method
JP2013212921A (en) * 2012-04-04 2013-10-17 Unitika Ltd Method of manufacturing film roll
DE102014223758A1 (en) * 2014-11-20 2016-05-25 Windmöller & Hölscher Kg contact roller
CN109573134B (en) * 2019-01-15 2021-07-30 衢州市智能制造技术与装备研究院 PVC door skin is baling equipment for factory

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN102530609A (en) * 2010-09-30 2012-07-04 富士胶片株式会社 Film winding device and method for making optical film employing the same
CN102530609B (en) * 2010-09-30 2015-06-24 富士胶片株式会社 Film winding device and method for making optical film employing the same

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Publication number Publication date
JP2004107057A (en) 2004-04-08
JP3955518B2 (en) 2007-08-08
US20040056139A1 (en) 2004-03-25

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