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Methods for forming an absorbent fibrous composite containing absorbent material dispersed in bands through the composite and along the composite's length are disclosed. The methods generally include depositing a fibrous slurry on a foraminous support to form a web and depositing or injecting absorb

Methods for forming an absorbent fibrous composite containing absorbent material dispersed in bands through the composite and along the composite's length are disclosed. The methods generally include depositing a fibrous slurry on a foraminous support to form a web and depositing or injecting absorbent material into the web across its width to provide a web having absorbent material in bands along the composite's length. Drying the web provides a fluted absorbent composite. In one embodiment, the method is a wetlaid method and in another embodiment, the method is a foam-forming method. Preferably, the methods are twin-wire forming methods.

대표청구항 ▼

Methods for forming an absorbent fibrous composite containing absorbent material dispersed in bands through the composite and along the composite's length are disclosed. The methods generally include depositing a fibrous slurry on a foraminous support to form a web and depositing or injecting absorb

Methods for forming an absorbent fibrous composite containing absorbent material dispersed in bands through the composite and along the composite's length are disclosed. The methods generally include depositing a fibrous slurry on a foraminous support to form a web and depositing or injecting absorbent material into the web across its width to provide a web having absorbent material in bands along the composite's length. Drying the web provides a fluted absorbent composite. In one embodiment, the method is a wetlaid method and in another embodiment, the method is a foam-forming method. Preferably, the methods are twin-wire forming methods. pulling out the air present between said felt and said SRBA surface while putting them in contact; and x) binding the uncovered face of the felt to a substratum with an epoxy resin; said substratum being a member selected from the group that consists of a plastic laminate and a metal, said substratum being the link between the first layer of SRBA of the die and the injection, projection or molding machine wherein said die is used. 2. A process according to claim 1, that includes applying the modified silicone rubber by addition (SRBA) by means of an electrostatic sprinkled kit. 3. The process according to claim 1, that includes heating the modified silicone rubber by addition (SRBA) at a temperature that ranges from about 50° C. to about 70° C. 4. The process according to claim 1, further including the step of eliminating the first SRBA layer and the second transitional material layer of the die after these two layers have become damaged so as to repair the die after damage thereto. 5. The process of claim 1, wherein said organic peroxide is ethylmethylketone peroxide. 6. The process of claim 1, wherein said silicone rubber by addition (SRBA)catalyst is tetrabutyltitanate. 7. A process to obtain a die that does not need end finishing in its construction and that can be used in absence of additional demolding agents, the process comprising the steps of: i) making a homogeneous blend by treating a starting volume of silicone rubber by addition (SRBA) with a volume of water that consists of about 1 percent to about 8 percent of the SRBA starting volume at a temperature that ranges from about 60° C. to about 80° C.; ii) adding to the blend of step i) a volume of silicone oil of about 1 percent to about 10 percent of the SRBA starting volume, while homogenizing; iii) adding to the blend of step ii) a volume of organic peroxide of about 0.2 percent to about 4 percent regarding the SRBA starting volume, while homogenizing; and iv) adding to the blend of step iii) a volume of acetic acid of about 0.2 percent and to about 4 percent regarding the SRBA starting volume, while homogenizing to produce a modified SRBA; v) heating the modified SRBA at a temperature ranging from 30° to 70° C. while mechanically stirring the modified SRBA, and adding a suitable catalyst in a suitable amount regarding the used SRBA; vi) applying said modified SRBA of step v) over a pattern, masterpiece, or form to be reproduced controlling the thickness, with the aim of forming a first catalyzed SRBA layer; vii) applying a second catalyzed SRBA layer over the surface of the SRBA of step vi), once the first layer is solidified; viii) applying a transitional binding material over the second layer before the second layer coagulates; ix) allowing the second layer of the SRBA to coagulate and to remove the transitional binding material that is not adhered from said layer; and x) binding the uncovered face of the binding transitional material adhered to second layer of the coagulated SRBA to a substratum by applying an epoxy resin to said transitional binding material; the substratum being a member selected from the group consisting of a plastic laminate and a metal, said substratum being the link between the first catalyzed SRBA layer of the die and the injection, projection or molding machine wherein said die is used. 8. The process of claim 7, that comprises applying the silicone rubber by addition (SRBA) by means of an electrostatic sprinkled kit. 9. The process of claim 7, that comprises heating the silicone rubber by addition (SRBA) at a temperature that ranges from about 50° C. to about 70° C. 10. The process of claim 7, wherein the transitional material used for adherence includes alveolar materials, and the alveolar materials are obtained by milling and screening with lay wire meshes of about 0.6 mm to about 0.8 mm. 11. The process of claim 10, wherein the transitional material used for adherence is pumice stone. 12. The process accor