Patent classifications
B31F1/14
Soft through-air dried facial tissue
Disclosed am multi-ply tissue products, particularly creped and through-air dried facial tissue products, having improved strength and softness. For example, the products have a geometric mean tensile strength (GMT) greater than about 1,2000 g/3, a geometric mean tensile energy absorption (GM TEA) of about 20 g.Math.cm/cm.sup.2 or greater and a TS7 value less than about 16.0. In certain instances, the tissue products also have a low degree of stiffness and a relatively smooth surface, such as a Stiffness Index less than about 8.00 and a TS750 value less than about 15.0. The tissue products may be prepared from webs manufactured by a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of the tissue web.
Soft wet pressed facial tissue
Disclosed are multi-ply tissue products, particularly wet pressed facial tissue products that have been recreped. For example, disclosed are tissue products prepared from wet pressed tissue webs that have been recreped using a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of the tissue web. The tissue products have improved strength and softness, such as a geometric mean tensile strength (GMT) greater than about 1,400 g/3, a geometric mean tensile energy absorption (GM TEA) of about 20 gocm/cm2 or greater and a TS7 value less than about 16.0. In certain instances, the tissue products also have a low degree of stiffness and a relatively smooth surface, such as a Stiffness Index less than about 8.00 and a TS750 value less than about 20.0.
Method of producing creping adhesive
This invention is method of producing a creping cylinder adhesive comprising: contacting a dry form PVOH with a liquid form PVA at a temperature of less than 80 C., maintaining the PVOH and PVA at a temperature of between 90-95 C. until the PVOH is completely dissolved into a medium, and allowing the medium to cool to below 80 C.
Method of producing creping adhesive
This invention is method of producing a creping cylinder adhesive comprising: contacting a dry form PVOH with a liquid form PVA at a temperature of less than 80 C., maintaining the PVOH and PVA at a temperature of between 90-95 C. until the PVOH is completely dissolved into a medium, and allowing the medium to cool to below 80 C.
Doctor apparatus and blade holder
A doctor apparatus for a web forming machine to doctor a moving surface, and the doctor apparatus (10) includes a doctor blade (16) and blade holder (11), which blade holder (11) has a holder component (14) preferably made of aluminum, to which the doctor blade (16) is mounted by a front plate (15), and a frame component (12) preferably made of fiber-reinforced polymer material, to which the holder component (14) is mounted. The doctor apparatus (10) having a loading element (22) arranged between the frame component (12) and holder component (14) to load the blade holder (11) and further the doctor blade (16). The invention also relates to a corresponding blade holder and holder component.
MULTIFUNCTIONAL DEVICE, SYSTEM, AND METHOD FOR MONITORING CREPED PRODUCT QUALITY AND BLADE WEAR
A system comprises a user computing device, e.g., smartphone, having an imaging device lens. A creping analysis module comprises a housing configured for selective coupling to the user computing device, wherein the imaging device lens is encompassed by the housing, the creping analysis module further comprising a magnifying element, a ring adapter, and a light source configured to provide a grazing angle illumination. During a calibration mode, pixels per unit length are determined from a calibration image collected via the creping analysis module at a set magnification and the grazing angle illumination via the light source. During an operating mode, crepe structure characteristics are ascertained in captured operating images comprising a tissue sheet, via the creping analysis module at the set magnification and the grazing angle illumination, and a crepe structure value is determined based on the crepe structure characteristics and the pixels per unit length.
Stud for a doctor blade holder in a fiber web machine and doctor blade assembly for a fiber web machine
A plurality of studs mount a doctor blade holder to a doctor back in a fiber web machine for slidable extraction of the doctor blade holder in the cross machine direction. Each stud (15) has a body (16) with a cylindrical center segment with a protruding nonround flange (17) formed as a single piece with the center segment. Opposed flats of the nonround flange of the body (16) may be engaged by the opposed parallel jaws of a conventional wrench allowing ready attachment of the studs to the doctor blade holder and subsequent installing within the channel of a rail which is mounted to the doctor back. A slide bar may be fixed to the doctor blade holder to extend out of the rail for engagement and extraction of the doctor blade holder.
Stud for a doctor blade holder in a fiber web machine and doctor blade assembly for a fiber web machine
A plurality of studs mount a doctor blade holder to a doctor back in a fiber web machine for slidable extraction of the doctor blade holder in the cross machine direction. Each stud (15) has a body (16) with a cylindrical center segment with a protruding nonround flange (17) formed as a single piece with the center segment. Opposed flats of the nonround flange of the body (16) may be engaged by the opposed parallel jaws of a conventional wrench allowing ready attachment of the studs to the doctor blade holder and subsequent installing within the channel of a rail which is mounted to the doctor back. A slide bar may be fixed to the doctor blade holder to extend out of the rail for engagement and extraction of the doctor blade holder.