摘要:
A disposable tissue or paper towel product including at least two plies, an exposed outer surface of at least one of the two plies comprising a plurality of pockets, the plurality of pockets having an average volume greater than 0.4 mm3 and an average surface area of 2.5 mm2, wherein the product is formed using a structured fabric with both a left handed and right handed twill pattern that reverses itself periodically.
摘要:
A ply-bonding agent or adhesive composition characterized by a viscosity and a surface tension for the manufacture of paper tissue and paper towel, includes: (a) water; (b) nanofibrillated cellulose; and (c) one or more modifiers effective to modify either or both of (i) the viscosity of the composition or (ii) the surface tension of the composition, wherein the one or more additional modifiers are selected from the group consisting of components (iii), (iv), (v), (vi), (vii) or (viii), wherein: (iii) is PVOH and a viscosity modifier; (iv) is a viscosity modifier; (v) is a viscosity modifier and a surface tension modifier other than PVOH; (vi) is a water-soluble cellulose derivative; (vii) is a water soluble polyol; and (viii) is a surface tension modifier other than PVOH. The compositions are particularly useful for ply-bonding multi-ply absorbent sheet when the plies are treated with debonder.
摘要:
There is described a substrate (S) for security documents, such as banknotes, comprising one or more paper layers (11, 12) and a polymer layer (20) which is made to adhere to a side of at least one of the paper layers (11, 12), which polymer layer (20) is substantially transparent in at least one region of the substrate (S) which is not covered by the paper layer or layers (11, 12) so as to form a substantially transparent window (W) in the substrate (S) which is formed and closed by the polymer layer (20). The polymer layer (20) exhibits in the region of the window (W) a thickness (T) which is greater than a thickness (t) of the polymer layer (20) outside of the region of the window (W). The thickness (T) of the polymer layer (20) in the region of the window (W) is substantially equal to the added thickness of the paper layer or layers (11, 12) and of the polymer layer (20) outside of the region of the window (W) so that the substrate (S) exhibits a substantially uniform and constant thickness (T). The substrate (S) further comprises a micro-optical structure (30), in particular a lens structure, which is disposed in the region of the window (W) on at least one side of the polymer layer (20).
摘要:
A method of manufacturing an absorbent sanitary paper product having a machine direction, a cross-machine direction orthogonal and co-planar thereto, and a Z-direction orthogonal to both the machine- and cross-machine directions is disclosed. The method comprises the steps of: a. providing a first network of fibers having a first and a second side, each fiber of the first network of fibers having a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions; b. applying a first bonding layer in a first pattern to one of the first and second sides of the first network of fibers; and, c. applying a first second network of fibers to the first bonding layer, the first second network of fibers comprising a combination of a first plurality of fibers and a second plurality of fibers. The first and second pluralities of fibers are different.
摘要:
Methods of making a multi-ply paperboard core include providing a number of paperboard furnishes and layering the furnishes to form a multi-ply paperboard web, wherein the two outermost plies are formed of furnish containing no size and the two plies adjacent the outermost plies are formed of furnish containing size. Apparatus for making a multi-ply paperboard core include two or more furnish sources configured to provide a number of paperboard furnishes, wherein at least one furnish source provides furnish containing no size and at least one furnish source provides furnish containing size, and a paperboard forming section wherein the furnishes are layered to form a multi-ply paperboard web in which the two outermost plies are formed of furnish containing no size and the two plies adjacent the two outermost plies are formed of furnish containing size.
摘要:
A multi-ply flushable wipe includes a ply having first and second exterior layers and a middle layer disposed therebetween. Each of the exterior layers includes at least 50% by weight natural fibers. When foam-formed, the middle layer includes at least 25% by weight natural fibers. In embodiments, the middle layer may include at least 75% by weight natural fibers. The middle layer also includes synthetic fibers that have a length within the range of 1 mm and 20 mm. The wipe may have a length weight weighted average fiber length of less than 4 mm and a wet CD strength of greater than 20 N/m. Each ply of the wipe may be formed by wetlaying the first and second exterior layers and a foam formed middle layer to form a web, imprinting the web with a structured fabric, and drying the web. The plies are then attached using a binder.
摘要:
A method of manufacturing an absorbent sanitary paper product having a machine direction, a cross-machine direction orthogonal and co-planar thereto, and a Z-direction orthogonal to both the machine- and cross-machine directions is disclosed. The method provides the steps of: providing a first and second network of fibers each having opposing first and second sides where each fiber of the first network of fibers has a longitudinal axis generally disposed within the plane comprising the machine- and cross-machine-directions; applying a first bonding layer to one of the first and second sides of the first network of fibers; applying a first second network of fibers to the first bonding layer; and, placing the first and second network of fibers into face-to-face contacting engagement.
摘要:
A machine for producing corrugated paperboard is provided, including: an endless fluted conveyor belt assembly having an endless fluted conveyor belt including a plurality of adjacent flutes, wherein the flutes are configured to correspond to the teeth on a corrugating roller which is located at the upstream end of the endless fluted conveyor assembly; at least one source of electromagnetic radiation and associated support surface located downstream of a glue applicator, the associated support surface also being sufficiently proximate to the flutes on the endless fluted conveyor belt, so as in use, to be capable of at least partially holding newly glued planar sheet and corrugated sheet material together; and wherein the machine further includes an industrial inkjet printer which is positioned to print a planar liner sheet prior to the liner sheet being bonded to a corrugated sheet material.
摘要:
Wiping products, such as facial tissues, contain an interior temperature change composition and an exterior hydrophilic lotion composition that can provide a cooling sensation when contacted with the skin of a user. The temperature change composition, for instance, can contain one or more phase change agents that undergo a phase change at slightly elevated temperatures. The phase change agents, in one embodiment, can have a relatively high heat of fusion. When undergoing a phase change, the phase change agents absorb heat and thereby provide a cooling feeling to the skin of a user. The hydrophilic lotion composition may contain a carrier and a thermo-reversible gelling agent. The hydrophilic lotion composition maintains the temperature change composition within the tissue and helps to prevent skin irritation.
摘要:
A method for producing an article made of a web material, comprising at least one ply, wherein a superabsorbent material in powder form is associated with said ply.