摘要:
A method of controlling the operation of applying discrete coupling elements one at a time onto a stringer tape, which comprises counting the number N.sub.1 of coupling elements entering a chute and comparing the number N.sub.1 thus counted with the number R of reovlutions of a motor driving a means of applying the elements to the tape thereby incessantly monitoring the inventory Nc of the elements in the chute.
摘要:
A radiation-sensitive resin composition includes a polymer, a photoacid generator, and an acid diffusion controller. The polymer includes a first repeating unit shown by a following formula (a-1). The acid diffusion controller includes at least one of a base shown by a following formula (C-1) and a photodegradable base, wherein each R1 represents a hydrogen atom or the like, R represents a monovalent group shown by an above formula (a′), each R19 represents a chain hydrocarbon group having 1 to 5 carbon atoms or the like, A represents a divalent chain hydrocarbon group having 1 to 30 carbon atoms or the like, and m and n are integers from 0 to 3 (m+n=1 to 3), wherein each of R2 and R3 represents a monovalent chain hydrocarbon group having 1 to 20 carbon atoms or the like.
摘要:
A fastener tape is intermittently transferred under tension longitudinally thereof. A discrete fastener element is fed to astraddle one longitudinal beaded edge of the fastener tape. Then, the coupling head of the fastener element is pressed at its both sides substantially perpendicularly to the plane of the fastener tape to bring the fastener element into alignment with the plane of the fastener tape. The coupling head is pressed at its distal end against the longitudinal beaded edge of the fastener tape to keep the discrete fastener element from getting detached from the longitudinal beaded edge of the fastener tape. Finally, the diverging legs of the fastener element are pressed at their respective outer sides toward each other to clamp the diverging legs to the longitudinal beaded edge of the fastener tape.
摘要:
In a method and apparatus for forming a row of zigzag coupling elements, the entire rotating die wheel is heated by a built-in interior heater so as to remain at a temperature slightly lower than the temperature at which a monofilament of thermoplastic synthetic resin is deformable, the monofilament being folded in an annular peripheral groove of the die wheel into a row of U-shaped coupling element blanks. Then, immediately before coupling heads are shaped, the monofilament in the form of U-shaped coupling element blanks received in the annular peripheral groove is additionally heated locally by an exterior heater outside of the die wheel such that its temperature rises to a heat setting temperature.
摘要:
A mechanism, for drawing an elongated sewn product from a sewing machine, has at least one gripper disposed downstream of the sewing machine for gripping a leading end of the sewn product. The gripper is reciprocable on a horizontal rail between a retracted or upstream position and an advanced or downward position. In the advanced position, the gripper is pivotally movable downwardly from the horizontal rail through a predetermined angle.
摘要:
A device for guiding a concealed slide fastener to a sewing machine includes a pair of spaced track bodies mounted on a slanted guide plate and each comprising a block fixedly mounted on the guide plate and a cover member movably mounted on said block. The block and the cover member jointly define a guide channel for guiding an element assembly of the slide fastener therethrough while the slide fastener is fed down the guide plate toward a sewing position on the sewing machine. The guide channel includes a recess for accommodating coupling heads of the element assembly at an inlet end thereof, the recess being shaped for automatically erecting the element assembly from a horizontal position to a vertical position as the element assembly is moved progressively through the guide channel. The guide plate supports a means for sensing an end of the concealed slide fastener.
摘要:
The radiation-sensitive resin composition includes a first polymer, a second polymer and a radiation sensitive acid generator. The first polymer includes a repeating unit represented by formula (1). The second polymer includes an acid labile group and is dissociated by an action of acid so that alkali solubility is given by dissociation of said acid labile group. R1 represents a hydrogen atom, a methyl group or a trifluoromethyl group. R2 represents a single bond or a divalent linear, branched or cyclic, saturated or unsaturated hydrocarbon group having 1-20 carbon atoms. X represents a fluorine atom-substituted methylene group or a linear or branched fluoroalkylene group having 2-20 carbon atoms. R3 represents a hydrogen atom or a monovalent organic group.
摘要:
Provided is a slide fastener that has a flexible fastener tape, exhibits liquid-tightness, and can prevent a gap from being formed in a coupling portion, and a method of producing the slide fastener. An overlay material is formed on a front surface of a fastener tape so that the overlay material formed on a surface of a core member extends beyond a centerline in a front-rear thickness direction of a tape member. When a pair of fastener element rows engages with each other, a tip of an intermeshing head of a fastener element presses the overlay material formed on the opposite core members.
摘要:
A radiation-sensitive resin composition includes a resin, a photoacid generator, a fluorine-containing resin, and a lactone compound. The resin does not include a first fluorine-containing repeating unit. The resin includes a first repeating unit that becomes alkali-soluble due to an acid. The fluorine-containing resin includes a second fluorine-containing repeating unit and a second repeating unit that becomes alkali-soluble due to an acid. A content of the lactone compound in the radiation-sensitive resin composition is about 31 to about 200 parts by mass based on 100 parts by mass of the resin.
摘要:
There is provided a driving mechanism of a compound knitting needle in a narrow width crochet knitting machine, which can highly accurately control an operation timing and stroke of a compound knitting needle comprising a hook-like knitting needle and a needle-like slider even in an operation at a speed higher than a conventional case without generating jumping or an error in its operation. A needle bar driving mechanism reciprocates a needle bar fixing and supporting base end portions of the plurality of hook-like knitting needles via a first rod at a desired timing, and comprises a rotary member supported on a main rotary shaft, and a first rod having one end rotatably attached to the needle bar and the other end rotatably attached onto a position which is eccentric from the rotary axis of the rotary member. A slider bar driving mechanism reciprocates a slider bar fixing and supporting base end portions of the plurality of sliders via a second rod at a desired timing, and comprises a rotary cam supported on the main rotary shaft, and the second rod (21) having one end having a cam follower and the other end rotatably attached to the slider bar.