Patent ID: 6764564
Filing Date: 2004-07-20
Classification: B29B,B29C,B32B

Abstract:
A manufacturing method for a synthetic leather, which comprises the steps of:a) measuring and feeding materials utilizing a measuring and conveying device for measuring liquid materials having at least one first tank storing a liquid isocyanate polymer containing NCO and at least one second tank storing a liquid polyol containing OH; b) foaming utilizing a foaming device for feeding out a foaming agent; c) mixing and injecting materials utilizing an injecting and mixing device having a mixing and injecting head with a lengthwise center mixing hole and a rotatable threaded rod inserted into the center mixing hole, the injecting and mixing device mixing liquid materials from the measuring and conveying device and the foaming agent from the foaming device that is fed into the lengthwise center mixing hole with the rotatable threaded rod to form liquid mixed materials, and vertically discharging the liquid mixed materials; d) conveying two cloths utilizing two spaced apart cloth conveying devices, the two cloths located below the measuring and conveying device; e) compressing the liquid mixed materials between the two cloths by positioning a vertical compressing and flowing control device below the injecting and mixing device, conveying the two cloths between two parallel rollers in the vertical compressing and flowing control device, positioning the liquid mixed materials vertically discharged from the injecting and mixing device between the two cloths before the two cloths converge and enter the two parallel rollers, and compressing the liquid mixed materials and the two cloths between the two parallel rollers to form the synthetic leather; and f) winding the synthetic leather utilizing a winding device.