WO2008010480A1 - procédé d'étirage oblique de film en feuille et dispositif d'étirage de film en feuille de type attache - Google Patents
procédé d'étirage oblique de film en feuille et dispositif d'étirage de film en feuille de type attache Download PDFInfo
- Publication number
- WO2008010480A1 WO2008010480A1 PCT/JP2007/064067 JP2007064067W WO2008010480A1 WO 2008010480 A1 WO2008010480 A1 WO 2008010480A1 JP 2007064067 W JP2007064067 W JP 2007064067W WO 2008010480 A1 WO2008010480 A1 WO 2008010480A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clip
- sheet
- film
- pitch
- stretching
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
- B29C55/045—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique in a direction which is not parallel or transverse to the direction of feed, e.g. oblique
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
- B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
- B29C55/165—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/20—Edge clamps
Definitions
- the present invention relates to a sheet 'an oblique stretching method of a film and a clip-type sheet'film stretching device, and in particular, a polarizing film, a retardation film, etc.
- the present invention relates to a method for obliquely stretching a film and a clip-type sheet / film stretching apparatus.
- Patent Documents 1 and 2 give a one-side delay by adding a difference between the clip on the right side and the clip on the left side to the clip movement trajectory length until the sheet 'film gripping position force by the clip reaches the release position.
- a clip-type sheet 'film stretching apparatus is disclosed.
- Patent Document 3 discloses a clip-type sheet-film stretching device that gives a difference in one-side delay by making a difference between the moving speed of the right clip and the moving speed of the left clip.
- Patent Document 1 JP 2002-86554 A
- Patent Document 2 JP 2004-325561 A
- Patent Document 3 Japanese Patent Laid-Open No. 2002-22944 Disclosure of the invention
- the curved clip-type sheet / film stretching apparatus described in Patent Document 1 has a 45 ° angle between the stretching inlet and the stretching outlet, which is disadvantageous in terms of equipment layout.
- the inclination angle when finely adjusting the inclination angle, not only the angle of the stretching machine but also the arrangement of the equipment associated with the upstream side and the downstream side of the stretching machine must be changed.
- An object of the present invention is to solve the above problems and to stably produce a high-quality obliquely stretched sheet 'film.
- a first aspect of the present invention is a method for obliquely stretching a sheet 'film, wherein the first and second clip pitches include a plurality of variable-pitch clip forces in which the clip pitch with respect to the traveling direction of the sheet' film changes with traveling movement.
- the clip pitch of the second clip is made different from the position where the enlargement starts, and the clip pitch of the first and second clip rows is enlarged as the first and second clip rows move.
- the sheet 'film is to be stretched obliquely.
- a second aspect of the present invention is the sheet and film oblique stretching method, wherein the first and second variable pitch-type clip forces change the clip pitch with respect to the traveling direction of the sheet 'film along the traveling direction.
- the first and second variable pitch-type clip forces change the clip pitch with respect to the traveling direction of the sheet 'film along the traveling direction.
- How to advance the sheet 'film by the second clip row Gripping the left and right edges respectively, and with respect to the traveling direction of the sheet 'film, the clip length expansion rate of the first clip row accompanying the travel movement of the first clip row, and the second clip
- the enlargement ratio of the clip pitch of the second clip row accompanying the travel movement of the row is made different, and the first and second clip rows are moved along the travel movement of the first and second clip rows.
- the sheet / film is obliquely stretched by increasing the clip pitch.
- a third aspect of the present invention is a clip-type sheet 'film stretching device, comprising a plurality of variable pitch-type clip forces in which the clip pitch with respect to the traveling direction of the sheet' film changes with traveling movement,
- the first and second clip rows that respectively hold the left and right edges of the sheet 'film in the traveling direction are arranged symmetrically on a plane, and each of the first and second clip rows is set to a predetermined path.
- First and second clip row circulating devices that circulate along, and the predetermined path is a position at which the clip pitch of the first clip row starts to expand with respect to the traveling direction of the sheet 'film.
- the clip pitch of the second clip is different from the position at which expansion starts.
- a fourth aspect of the present invention is a clip-type sheet 'film stretching device, comprising: a plurality of variable pitch-type clip forces in which the clip pitch with respect to the traveling direction of the sheet' film changes with traveling movement,
- the first and second clip rows that respectively hold the left and right edges of the sheet 'film in the traveling direction are arranged symmetrically on a plane, and each of the first and second clip rows is set to a predetermined path.
- First and second clip row circulating devices that circulate along, and the predetermined path includes a first clip row traveling device with respect to a traveling direction of the sheet 'film.
- FIG. 1 is a plan view showing the overall configuration of one embodiment of a clip-type sheet ′ film stretching apparatus according to the present invention.
- FIG. 2 is a plan view of a minimum pitch state of the main part of the clip-type sheet 'film stretching apparatus according to the above embodiment.
- Fig. 3 is a plan view of the principal pitch portion of the clip-type sheet 'film stretching apparatus according to the above embodiment in the maximum pitch state.
- FIG. 4 is a side view of the principal part of the clip-type sheet ′ film stretching apparatus according to the above embodiment in a minimum pitch state.
- FIG. 5 is a side view of the principal pitch portion of the clip-type sheet 'film stretching apparatus according to the above embodiment in the maximum pitch state.
- FIG. 6 is an overall plan view showing one embodiment of oblique stretching by a clip-type sheet ′ film stretching apparatus according to the present invention.
- FIG. 7 is an overall plan view showing another embodiment of oblique stretching by a clip-type sheet ′ film stretching apparatus according to the present invention.
- FIG. 8 is an overall plan view showing another embodiment of oblique stretching by the clip-type sheet ′ film stretching apparatus according to the present invention.
- FIG. 9 is an overall plan view showing another embodiment of oblique stretching by a clip-type sheet 'film stretching apparatus according to the present invention.
- the clip-type sheet 'film stretching apparatus 200 has endless loops 10R and 10L having a large number of clips 20 for gripping the sheet' film. Endless loops 10R and 10L are arranged symmetrically with respect to line L on a plane as shown in FIG. This line L can be set arbitrarily on the plane.
- the endless loop on the right side when viewed from the entrance side (the left side in FIG. 1) of the sheet film F is described as the endless loop 10R, and the endless loop on the left side is described as the endless loop 10L.
- the clips 20 of the endless loops 10R and 10L are each guided by the reference rail 100 and moved in a loop. As shown in Fig. 1, the endless loop 10R moves in a clockwise direction, and the endless loop 10R moves in a counterclockwise direction. [0018] A preheating zone A, a stretching zone B, and a heat treatment zone C are formed in this order from the inlet side to the outlet side (right side in FIG. 1) of the sheet 'film S.
- a square U1 represents a part of the sheet ′ film S before lateral stretching (that is, in the preheating zone A).
- Squares U2 and U3 represent a state in which square U1 is deformed by passing through stretching zone B (during longitudinal and transverse stretching) and heat treatment zone C (after longitudinal and transverse stretching), respectively.
- the length W in the horizontal (TD) direction of the rectangle U1 is the length in the horizontal direction of the sheet 'film S.
- the length W in the transverse (TD) direction of the rectangle U3 is the same as the length in the transverse direction of the sheet 'film S after longitudinal and transverse stretching.
- the length L in the longitudinal (MD) direction of the square U is longitudinal and transverse stretching.
- the horizontal length W and the vertical length L of the rectangle U1 (i.e., the rectangle U2) that the rectangle U1 passes through the extension zone B are W ⁇ W ⁇ W and L ⁇ L ⁇ L, respectively. This satisfies the inequality.
- the separation distance D between the endless loops 10R and 10L is the sheet length before transverse stretching.
- Rum S is equivalent to W. Endless loops 10R and 10L have this width over the entire area.
- the separation distance D of the endless loops 10R and 10L gradually increases as the preheating zone A moves toward the heat treatment zone C, and the endless loops 10R and 10L are not
- the separation distance D of the endless loops 10R and 10L in the stretching zone B is the width of the sheet 'film S before lateral stretching at the stretching start end (connection end to the preheating zone A).
- the separation distance between endless loops 10R and 10L is the size corresponding to the lateral width W of the finally stretched sheet 'film S. Endless loops 10R and 10L have this width over the entire area. It becomes a parallel arrangement with keeping!
- FIGS. 2 to 5 a clip-type sheet according to the present embodiment is used. The detailed structure of the device 200 will be described.
- the plurality of clips 20 of the left and right endless loops 10R and 10L are each attached to one end portion (front side) in the longitudinal direction of the rectangular clip holding member 30.
- the right endless loop 10R clip (right clip) 20 and the left endless loop 10L clip 20 (left clip) 20 each have a vertical clip pitch (clip MD pitch) as they travel. ) Is a variable pitch type that changes.
- the clip 20 grips the sheet 'film S so as to be detachable, and includes a yoke-shaped tape body 21, a lower fixed clip member 22 fixedly attached to the clip body 21, and a pin 23.
- the movable lever 24 is attached to the clip body 21 so as to be rotatable, and the upper movable clip member 26 is attached to the lower end of the movable lever 24 so as to be swingable by a pin 25.
- the clip 20 holds the side edge of the sheet ′ film S in a sandwiched manner by the lower fixed clip member 22 and the upper movable clip member 26.
- Each of the clip carrying members 30 carries the clips 20 individually, and there are the same number as the number of the clips 20.
- the clip carrying member 30 is formed in a rigid frame structure (see FIGS. 4 and 5) having a closed cross section composed of an upper beam 35, a lower beam 36, a front wall 37, and a rear wall 38.
- Traveling wheels 33 and 34 are rotatably provided by shafts 31 and 32 at both ends (front wall 37 and rear wall 38) of the tip support member 30, respectively.
- the traveling wheels 33 and 34 roll on the horizontal traveling road surfaces 111 and 112 formed on the base 110.
- the traveling road surfaces 111 and 112 are parallel to the reference rail 100 over the entire area.
- a long hole (long hole) 39 that is long in the longitudinal direction is formed.
- Sliders 40 engage with the upper and lower long holes 39 so as to be slidable in the longitudinal direction of the long holes 39, respectively.
- each clip carrying member 30 In the vicinity of one end portion (on the clip 20 side) of each clip carrying member 30, a single first shaft member 51 is vertically provided through the upper beam 35 and the lower beam 36. A single second shaft member 52 is vertically provided in the upper and lower sliders 40 of each clip carrying member 30.
- One end of a main link member 53 is pivotally connected to the first shaft member 51 of each clip carrying member 30.
- the main link member 53 is pivotally connected to the second shaft member 52 of the adjacent clip carrying member 30 at the other end.
- One end of the sub link member 54 is pivotally connected to the first shaft member 51 of each clip holding member 30 in addition to the main link member 53.
- the other end of the sub link member 54 is pivotally connected to the intermediate portion of the main link member 53 by a pivot 55.
- the minimum pitch D (MIN) between the adjacent clip carrying members 30 is
- the maximum pitch D (MAX) between the adjacent clip carrying members 30 is determined by the contact between the adjacent clip carrying members 30.
- a guide roller (engagement member) 56 is rotatably provided at the lower end of the first shaft member 51.
- the guide roller 56 is provided on the base 110 and engages with the concave groove 101 of the reference rail 100 that defines the circulation path of the clip 20.
- a driving roller 58 is rotatably provided at the upper end of the first shaft member 51.
- the drive roller 58 selectively engages with the drive sprockets 11 and 12 (see FIG. 1), and causes each of the tip carrying members 30 to travel along the circulation path. That is, the drive sprockets 11 and 12 selectively engage with the drive rollers 58 of the respective clip carrying members 30 and are driven to rotate by the electric motors 13 and 14 (see FIG. 1) to pass through the respective clip carrying members 30. Is applied to the clip carrier 30.
- a pitch setting roller (engagement member) 57 is rotatably provided at the lower end of the second shaft member 52.
- the pitch setting roller 57 engages with a concave groove 121 of the pitch setting rail 120 provided along the reference rail 100 on the base 110, and sets the position of the slider 40 in the long hole 39.
- the pitch setting rail 120 serves to determine the position of the slider 40 in the long hole 39 according to the separation distance P from the reference rail 100. From this fact, the distance between the adjacent clip carrying members 30 is determined. Pitch D is variably set. The pitch setting rail 120 is separated from the reference rail 100.
- the slider 40 is moved to one end side (clip side) of the clip carrying member 30 to increase the pitch D between the adjacent clip carrying members 30.
- the pitch setting rail 120 will be described with reference to Figs.
- the separation distance P between the pitch setting rail 120 and the reference rail 100 is the maximum value (P (MAX)) over the entire region.
- P (MAX) the maximum value
- D (MIN) the minimum value
- the separation distance P between the pitch setting rail 120 and the reference rail 100 is the maximum value (P (MAX)) at the extension start end (connection end to the preheating zone A).
- P (MAX) the maximum value at the extension start end (connection end to the preheating zone A).
- the length gradually decreases toward the end of stretching, and reaches the minimum value (P (MIN)) at the end of stretching.
- the separation distance P between the pitch setting rail 120 and the reference rail 100 is a minimum value (P (MIN)) over the entire area.
- P (MIN) a minimum value
- D (MAX) the pitch D between the adjacent clip carrying members 30 becomes the maximum value D (MAX).
- both end edges of the sheet' film are gripped (clip 'on) by the endless loop 10R, 10L clip 20 and the endless loop 10R, 10L Due to the movement, that is, the movement of each clip carrying member 30 guided by the reference rail 100, the sheet 'film S first enters the preheating zone A.
- the separation distance D of the endless loops 10R and 10L is equivalent to the width W before transverse stretching.
- endless loops 10R and 10L are arranged in parallel with each other over the entire area. Further, the separation distance P between the pitch setting rail 120 and the reference rail 100 is uniformly the maximum value P (MAX) over the entire area. Therefore, in the preheating zone A, the film “sheet S” is not subjected to transverse stretching or longitudinal stretching, and only preheating is performed.
- the sheet 'film S enters the stretching zone B.
- the preheating zone A force also has a separation distance D of endless loops 10R and 10L according to the direction of heat treatment zone C.
- the longitudinal stretching is performed simultaneously with the lateral stretching of the film 'sheet S.
- the sheet′film S enters the heat treatment zone C.
- the separation distance D between the endless loops 10R and 10L is maintained over the entire width while maintaining the width W after transverse stretching.
- Endless loops 10R and 10L are arranged in parallel to each other. Further, the separation distance P between the pitch setting rail 120 and the reference rail 100 is uniformly the minimum value P (MIN) over the entire area. Therefore, in the heat treatment zone C, neither the transverse stretching nor the longitudinal stretching of the sheet'film S is performed, and only the heat treatment such as temperature adjustment is performed.
- the distance between R and the enlargement end position BR and the distance between the vertical clip pitch enlargement start position AL and the enlargement end position BL of the clip 20 of the left endless loop 10L are set to the same value.
- a clip in which the moving speed of the left and right clips 20 when the clip is on is equal to the moving speed of the left and right clips 20 when the clip is off is the same. , Will not vary. This also makes it possible to stably produce a high-quality obliquely stretched sheet 'film.
- the clip pitch enlargement amount in the vertical direction of the clip 20 may be equal to each other in the left and right endless loops 10R and 10L. As a result, a diagonally stretched sheet film having the same left / right stretch ratio is produced. In addition, the magnification of oblique stretching can be adjusted by setting the clip pitch expansion amount.
- the clip pitch expansion amount can be arbitrarily set according to the shape of the pitch setting rail 120, the production of obliquely stretched sheet 'films having the same stretching ratio on the left and right and the adjustment of the oblique stretching ratio are flexible. It can be done easily.
- the lateral stretching is performed in conjunction with the oblique stretching described above between the lateral stretching start positions ER, EL of the left and right endless loops 10R, 10L and the lateral stretching end positions FR, FL. .
- the transversely stretched diagonally stretched sheet 'film can be produced with high productivity.
- left and right endless loops 10R, 10L lateral stretching start positions ER and EL, lateral stretching Stretching end position FR and FL force Forces set at the same position with respect to the sheet's film traveling direction
- the left and right endless loops 10R, 10L lateral stretching start position ER and EL, transverse stretching end position FR and FL respectively, right endless loop 10R clip 20 longitudinal clip pitch expansion start position AR and left endless loop 10L clip 20 longitudinal clip pitch expansion start position AL
- the sheet may be shifted by the same amount as the difference in the traveling direction of the film.
- the oblique stretching section (longitudinal stretching section) and the lateral stretching section are the same when viewed in the traveling direction of the sheet 'film with the left and right endless loops 1 OR, 10L.
- the left and right endless loops 10R and 10L are driven at constant speed, and the distance between the vertical clip pitch expansion start position AR and the expansion end position BR of the clip 20 of the right endless loop 10R, Left endless loop 10L clip 20 vertical clip pitch enlargement start position AL and enlargement end position BL are set to the same value, and so on!
- the clip pitch enlargement ratio in the vertical direction of the clip 20 (vertical clip pitch enlargement amount per unit movement amount) is different between the right endless loop 10R and the left endless loop 10L.
- the vertical clip pitch magnification of the right endless loop 10R is larger than the vertical clip pitch magnification of the left endless loop 10L.
- the right endless loop 10R and the left endless loop 10L can also be obliquely stretched by making the clip pitch enlargement ratio in the vertical direction of the clip 20 different.
- the left and right endless loops 10R and 10L are driven at a constant speed, and the vertical clip pitch expansion start position AR of the clip 20 of the right endless loop 10R and the clip 20 of the left endless loop 10L
- the vertical clip pitch expansion start position AL can be set to the same position as the sheet's film traveling direction.
- the longitudinal clip pitch expansion start position AR and the expansion end position BR of the right endless loop 1 OR clip 20 Increase the distance between the vertical clip pitch expansion start position AL and the expansion end position BL of the clip 20 of the endless loop 10L on the left side from the distance, and the vertical clip pitch at the end of the vertical extension is equal for the left and right clips 20. It should be a value.
- oblique stretching can be performed without giving a difference in the movement trajectory lengths of the left and right clips 20, and even in a straight traveling type sheet 'film stretching device, the width direction of the sheet' film ( It is possible to stably produce a high-quality obliquely stretched sheet 'film that does not cause uneven orientation in the (TD direction).
- the movement speed of the left and right clips 20 when the clip is on is the same, and the movement speed of the left and right clips 20 when the clip is off are equal, so that the grip and release of the sheet 'film may vary from side to side. Absent. This also makes it possible to stably produce a high-quality obliquely stretched sheet 'film.
- the same horizontal stretching as in the embodiment shown in Figs. 6 and 7 can be performed at the same time, and the vertical clip pitch of the clip 20 starts to expand.
- the position of the left clip 20 and the right clip 20 can be obliquely stretched by combining a difference in the sheet's film traveling direction.
- the longitudinal clip pitch is increased along with the traveling movement, and the longitudinal stretching is performed.
- the position at which the vertical clip pitch begins to expand differs between the left clip and the right clip with respect to the sheet's film traveling direction, or the vertical clip pitch expansion ratio of the left and right clips differs.
- the diagonal stretching can be performed without giving a difference in the movement trajectory length of the left and right clips.
- the clip that grips the sheet 'film by the clip ⁇ The sheet that is on and the sheet that is released by the clip ⁇
- the clip's moving speed can be equalized when the clip is off ⁇
- the grip force of the sheet' film Left and right do not vary.
- a high-quality obliquely stretched sheet 'film can be stably produced.
- the magnification of oblique stretching can be adjusted, and lateral stretching can also be performed simultaneously with oblique stretching.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200780027256XA CN101489760B (zh) | 2006-07-19 | 2007-07-17 | 片或膜的倾斜延伸方法以及夹爪式片或膜延伸装置 |
DE112007001690.6T DE112007001690B4 (de) | 2006-07-19 | 2007-07-17 | Verfahren zum schrägen Dehnen einer Folie oder eines Films und Klammerdehner für eine Folie oder einen Film |
US12/374,270 US8535588B2 (en) | 2006-07-19 | 2007-07-17 | Sheet or film oblique stretching method and sheet or film clipping stretcher |
US12/777,693 US8028383B2 (en) | 2006-07-19 | 2010-05-11 | Sheet or film oblique stretching method and sheet or film clipping stretcher |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-196861 | 2006-07-19 | ||
JP2006196861A JP4845619B2 (ja) | 2006-07-19 | 2006-07-19 | シート・フィルムの斜め延伸方法およびクリップ式シート・フィルム延伸装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/374,270 A-371-Of-International US8535588B2 (en) | 2006-07-19 | 2007-07-17 | Sheet or film oblique stretching method and sheet or film clipping stretcher |
US12/777,693 Division US8028383B2 (en) | 2006-07-19 | 2010-05-11 | Sheet or film oblique stretching method and sheet or film clipping stretcher |
Publications (1)
Publication Number | Publication Date |
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WO2008010480A1 true WO2008010480A1 (fr) | 2008-01-24 |
Family
ID=38956811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/064067 WO2008010480A1 (fr) | 2006-07-19 | 2007-07-17 | procédé d'étirage oblique de film en feuille et dispositif d'étirage de film en feuille de type attache |
Country Status (7)
Country | Link |
---|---|
US (2) | US8535588B2 (ja) |
JP (1) | JP4845619B2 (ja) |
KR (1) | KR101033703B1 (ja) |
CN (1) | CN101489760B (ja) |
DE (1) | DE112007001690B4 (ja) |
TW (1) | TW200821134A (ja) |
WO (1) | WO2008010480A1 (ja) |
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KR101723318B1 (ko) | 2012-10-25 | 2017-04-04 | 코니카 미놀타 가부시키가이샤 | 긴 연신 필름의 제조 방법, 긴 연신 필름, 상기 긴 연신 필름을 사용한 원편광판 및 유기 el 디스플레이 |
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DE112007001690T5 (de) | 2009-05-28 |
DE112007001690B4 (de) | 2022-01-13 |
CN101489760B (zh) | 2012-10-03 |
KR101033703B1 (ko) | 2011-05-09 |
TW200821134A (en) | 2008-05-16 |
US20100221377A1 (en) | 2010-09-02 |
CN101489760A (zh) | 2009-07-22 |
US20090261503A1 (en) | 2009-10-22 |
TWI336656B (ja) | 2011-02-01 |
US8535588B2 (en) | 2013-09-17 |
JP4845619B2 (ja) | 2011-12-28 |
KR20090030314A (ko) | 2009-03-24 |
US8028383B2 (en) | 2011-10-04 |
JP2008023775A (ja) | 2008-02-07 |
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