JPH0519909Y2 - - Google Patents

Info

Publication number

JPH0519909Y2

JPH0519909Y2 JP1986115519U JP11551986U JPH0519909Y2 JP H0519909 Y2 JPH0519909 Y2 JP H0519909Y2 JP 1986115519 U JP1986115519 U JP 1986115519U JP 11551986 U JP11551986 U JP 11551986U JP H0519909 Y2 JPH0519909 Y2 JP H0519909Y2

Authority

JP

Japan

Prior art keywords

protective film

cassette

layer

injection molding

magnetic tape

Prior art date

1986-07-28

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.)

Expired - Lifetime

Links

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• 230000001681 protective effect Effects 0.000 claims description 49
• 238000001746 injection moulding Methods 0.000 claims description 26
• 239000000463 material Substances 0.000 claims description 19
• 238000002347 injection Methods 0.000 claims description 12
• 239000007924 injection Substances 0.000 claims description 12
• 239000004033 plastic Substances 0.000 claims description 7
• 229920003023 plastic Polymers 0.000 claims description 7
• 238000004804 winding Methods 0.000 claims description 5
• 239000010410 layer Substances 0.000 description 69
• -1 polyethylene Polymers 0.000 description 9
• 238000001721 transfer moulding Methods 0.000 description 8
• 238000000034 method Methods 0.000 description 5
• 239000000428 dust Substances 0.000 description 4
• 239000012768 molten material Substances 0.000 description 4
• 239000012790 adhesive layer Substances 0.000 description 3
• 238000004519 manufacturing process Methods 0.000 description 3
• QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 3
• PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical class OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
• NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
• 239000004698 Polyethylene Substances 0.000 description 2
• JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
• 239000000853 adhesive Substances 0.000 description 2
• 230000001070 adhesive effect Effects 0.000 description 2
• 239000006229 carbon black Substances 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• 229920000573 polyethylene Polymers 0.000 description 2
• 150000005846 sugar alcohols Chemical class 0.000 description 2
• KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 1
• LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
• OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
• CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical class OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
• 239000004743 Polypropylene Substances 0.000 description 1
• 150000003973 alkyl amines Chemical class 0.000 description 1
• 125000002947 alkylene group Chemical group 0.000 description 1
• 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
• 150000001413 amino acids Chemical class 0.000 description 1
• 150000001414 amino alcohols Chemical class 0.000 description 1
• 239000002280 amphoteric surfactant Substances 0.000 description 1
• 229940053195 antiepileptics hydantoin derivative Drugs 0.000 description 1
• 239000002216 antistatic agent Substances 0.000 description 1
• 229960003237 betaine Drugs 0.000 description 1
• 230000015572 biosynthetic process Effects 0.000 description 1
• 150000001735 carboxylic acids Chemical class 0.000 description 1
• 239000003093 cationic surfactant Substances 0.000 description 1
• 239000001913 cellulose Substances 0.000 description 1
• 229920002678 cellulose Polymers 0.000 description 1
• 239000011248 coating agent Substances 0.000 description 1
• 238000000576 coating method Methods 0.000 description 1
• 230000005611 electricity Effects 0.000 description 1
• 125000004185 ester group Chemical group 0.000 description 1
• 150000002148 esters Chemical class 0.000 description 1
• 235000011187 glycerol Nutrition 0.000 description 1
• 229920000578 graft copolymer Polymers 0.000 description 1
• 229910002804 graphite Inorganic materials 0.000 description 1
• 239000010439 graphite Substances 0.000 description 1
• 125000000623 heterocyclic group Chemical group 0.000 description 1
• 150000001469 hydantoins Chemical class 0.000 description 1
• 238000010030 laminating Methods 0.000 description 1
• 238000000465 moulding Methods 0.000 description 1
• 239000002736 nonionic surfactant Substances 0.000 description 1
• XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
• 150000003014 phosphoric acid esters Chemical class 0.000 description 1
• 229920000139 polyethylene terephthalate Polymers 0.000 description 1
• 239000005020 polyethylene terephthalate Substances 0.000 description 1
• 229920001155 polypropylene Polymers 0.000 description 1
• 239000000843 powder Substances 0.000 description 1
• 238000003825 pressing Methods 0.000 description 1
• UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
• 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
• 238000009751 slip forming Methods 0.000 description 1
• 238000001179 sorption measurement Methods 0.000 description 1
• 238000005728 strengthening Methods 0.000 description 1
• IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical class NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 description 1
• RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical compound [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
• 239000004094 surface-active agent Substances 0.000 description 1
• ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1