Processes for extracting trichomes from plants and fibrous structures employing same

Patent metadata

Field	Value
Publication number	US-10227729-B2
Application number	US-201514963278-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Dec 9, 2014
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

Processes for extracting trichomes from plants and more particularly to processes for extracting trichomes from a mixture of trichome and non-trichome materials using a screen, for example a pressure screen, and fibrous structures employing such extracted trichomes are provided.

First claim

What is claimed is:

1. A fibrous structure comprising a plurality of extracted trichomes, which have been passed through a pressure screen to remove non-trichome materials, such that the fibrous structure is substantially free of said non-trichome materials having an average particle size of 0.0001 cm 2 or greater as measured according to the Fibrous Structure Purity Test Method.

2. The fibrous structure according to claim 1 wherein the fibrous structure comprises less than 5% by weight of said non-trichome materials having an average particle size of 0.0001 cm 2 or greater as measured according to the Fibrous Structure Purity Test Method.

3. The fibrous structure according to claim 1 wherein the total of said non-trichome materials present in the fibrous structure exhibit a total surface area of less than 0.2% as measured according to the Fibrous Structure Purity Test Method.

4. The fibrous structure according to claim 1 wherein one or more of the individualized trichomes is derived from a plant in the Stachys genus.

5. The fibrous structure according to claim 1 wherein the fibrous structure exhibits a softness (PSU) increase of at least 0.5 compared to the fibrous structure without the individualized trichomes.

6. The fibrous structure according to claim 1 wherein the fibrous structure comprises less than 50% by weight on a dry fiber basis of hardwood pulp fibers.

7. The fibrous structure according to claim 1 wherein the fibrous structure comprises a softening agent.

8. The fibrous structure according to claim 1 wherein the fibrous structure is an embossed fibrous structure.

9. The fibrous structure according to claim 1 wherein the fibrous structure is a wet-molded fibrous structure.

10. A single or multi-ply sanitary tissue product comprising a fibrous structure according to claim 1 .

Assignees

• Procter & Gamble

Inventors

• Mohammadi Khosrow Parviz
• Glassmeyer Stephen Robert
• Nunes Raul Victorino
• Gilliland Joseph Edwin

Classifications

• D21F11/00

  Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines · CPC title

• D21H11/12

  Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse · CPC title

• D21B1/06

  by dry methods · CPC title

• D21H27/002

  Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00) · CPC title

• D21H27/02

  Patterned paper (patterned coatings D21H19/66; embossing B31F1/07; prepared on the paper-making machines D21F11/00) · CPC title