Joining method of resin components
A technology of resin components and bonding methods, applied in polarizing elements, optical elements, applications, etc., can solve the problems of original roll fracture, crystallinity hardening, polarizing film increasing tensile load, etc., and achieve the effect of suppressing fracture
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Embodiment 1
[0203] Under the above-mentioned basic conditions, an attempt was made to join the old and new rolls of film. As a result, the new and old rolls of film did not shift in position, and a good splicing was successfully achieved.
[0204] Furthermore, while the resulting conjugated body was figure 1 In the stretching device shown, the stretching ratio is 2.6 times in the swelling bath, 3.4 times in the dyeing bath, 3.6 times in the crosslinking bath, and 6.0 times in the stretching bath and washing bath Stretching was performed to manufacture polarizing films in batches, and as a result, no breakage occurred at the junction, and production was possible.
Embodiment 2
[0206] In addition to changing the interphase member to silicone rubber (thickness 5mm, hardness 50 degrees), under the above basic conditions, an attempt was made to join the old and new raw films. As in Example 1, the new and old raw films did not shift in position and were successfully achieved. Good engagement.
[0207] Furthermore, polarizing films were batch-fabricated from the obtained bonded body under the same conditions as in Example 1, and it was possible to manufacture without breaking at the bonded portion.
Embodiment 3
[0209] In addition to changing the interphase member to a laminated member of urethane rubber and cellulose triacetate film (manufactured by Fujifilm Co., Ltd., thickness 80 μm, placed on the non-joining member side), an attempt was made to join new and old raw film under the above basic conditions, and the results were the same as In the same manner as in Example 1, there was no misalignment of the old and new raw films, and good bonding was successfully achieved.
[0210] Furthermore, polarizing films were batch-fabricated under the same conditions as in Example 1 except that the obtained bonded body was stretched 5.5 times in a stretching bath and a washing bath, and it was possible to manufacture without breaking at the bonded part.
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Abstract
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