Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Process for production of solid detergent compositions

A technology of detergent, composition, applied in the field of manufacture of "air-filled" detergent sticks, which can solve the problems of reducing production volume, reducing machine productivity, prolonging extrusion time, etc.

Inactive Publication Date: 2005-08-31
UNILEVER NV
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Elevating the temperature to increase the degree of aeration is not ideal as this will soften the rod and cause problems in downstream processes like cutting, marking and packaging
It is also not ideal to increase the degree of aeration by extending the extrusion time, as this will reduce the throughput and thus the productivity of the machine

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052] Detergent bar preparation method

[0053] The different formulations described in Table 1 were prepared by the following method and analyzed for rod density and performance.

[0054] soap bar

[0055] a. Conventional method

[0056] 4.54 kg of soap containing 25% water was prepared in a zigzag mixer at room temperature to a masterbatch of approximately 6 kg. Add 0.12 kg aluminum sulfate, 0.06 kg boric acid, 0.9 kg washed clay, 0.285 kg alkali silicate and 0.09 kg sodium perborate and mix thoroughly at room temperature. The resulting masterbatch (Example 1) was then extruded in a conventional manner at a temperature of about 45°C.

[0057] b. The method of only heating the barrel

[0058] A masterbatch similar to that in Example 1 above was prepared in a blender. However, the temperature in the extruder was maintained at 85° C. by passing hot water through the extruder barrel (Example 2).

[0059] c. The method of only heating the screw

[0060] A master...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A process is provided for preparing a non-granular solid detergent composition with entrapped gas bubbles, the composition comprising: 5-80% by weight of detergent active; 0.1-10% by weight of a chemical blowing agent that decomposes to generate a gas at a temperature range 50-90 DEG C optionally in presence of water; 5-30% by weight of water; and 0-30% by weight of detergency builder; which process comprises the steps of: i) mixing the various ingredients of the formulation in a mixer; ii) mixing 0.1-10% of the chemical blowing agent to the said mix at a temperature below 50 DEG C; iii) extruding the said mix at a temperature of 50-90 DEG C wherein heat is provided to the said mix from the outside by heating the extruder barrel and from the inside by heating the screw shaft and / or the screw flights; and iv) optionally, cooling the extruded bars, converting them into billets and forming tablets.

Description

technical field [0001] The present invention relates to a method of making a detergent bar suitable for fabric washing or hard surface cleaning. In particular, the invention relates to the manufacture of "aerated" detergent sticks in which the chemical blowing agent in the formulation breaks down and outgasses during extrusion by providing heat from the barrel and screw shaft together, and the outgassing is trapped. Background technique [0002] Fabric washing compositions contain as an essential ingredient a surfactant system which acts to aid in the removal of soils from fabrics and their suspension in the wash liquor. Detergent bars require acceptable physical strength to maintain their structural integrity during processing, transport and use. The hardness of the rod during and after manufacture is a particularly important property. Commercially available detergent bars contain detergent active ingredients and detergent builders, fillers, structurants, hardeners, and o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C11D3/00C11D13/18C11D17/00C11D17/02
CPCC11D13/18C11D17/0065C11D3/0052C11D17/0069C11D17/02
Inventor S・K・戈尔S・S・希巴雷N・苏拉马尼亚姆
Owner UNILEVER NV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com