Sheet Dispenser Using Solid Friction Treatment to Prevent Leakage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dispensers for delivering sheets of woven or non-woven material for housecleaning and personal care face issues such as liquid spillage and uneven treatment, requiring careful handling and often necessitating protective gear due to potential irritation or greasiness.
Innovation Solution
A dispenser design that uses a solid spreadable substance, similar to shaving soap or lipstick, to treat the material by friction during use, allowing for dry or treated sheets to be dispensed without direct skin contact with liquids, thus preventing irritation and leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If liquid-containing reservoirs with impregnation means are used to treat sheets, then sheets can be delivered either dry or treated with liquid, but liquid may spill inadvertently causing material to become unusable or liquid loss
Solution Approach 1:
The patent changes the physical state of the treatment substance from liquid to solid (wax or grease). This parameter change eliminates spillage issues while maintaining the ability to treat sheets. The solid substance is applied to the sheet surface through friction during dispensing, providing treatment without the reliability problems of liquid reservoirs.
Solution Approach 2:
The invention extracts the treatment substance from a liquid reservoir system and applies it directly in solid form to the sheet surface. By removing the liquid containment system entirely and using solid wax/grease that is friction-applied during dispensing, the patent eliminates the spillage hazard while preserving treatment functionality.
2Adaptability or versatility
If liquid impregnation means are used, then sheets can be treated with desired substances, but the opposite surface of the sheet may also become wetted due to liquid migration through the material
Solution Approach 1:
Changing the treatment substance from liquid to solid form prevents migration through the sheet material. Solid wax or grease applied via friction remains on the surface where applied, eliminating the harmful effect of liquid penetrating through to the opposite side and causing skin irritation.
Solution Approach 2:
The treatment is applied in a controlled, localized manner during the brief moment of sheet dispensing. The solid substance is transferred from the dispensing surface to the sheet in a single-use friction contact, ensuring treatment only where needed without migration to other areas.
3Adaptability or versatility
If liquid substances are used for treatment, then sheets can be impregnated with desired substances, but protective gloves are required to prevent skin irritation or allergy
Solution Approach 1:
The patent changes the treatment substance from liquid to solid (wax or grease), which eliminates the need for protective gloves. Solid substances do not migrate through the sheet material or contaminate the user's hands, making the system safe for direct handling without additional protective equipment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dispenser effectively prevents liquid leakage and ensures only the treated surface is exposed to substances, allowing for safe and versatile use of the material for cleaning and personal care, with easy replacement of treatment substances and reduced risk of skin irritation.
Implementation Method 1
said positioning element, in the second engagement position, is suitable to hold said web in direct contact with said substance provided in a solid spreadable form, such that a thin layer of said substance is deposited, upon delivery, on the web contact surface by means of friction
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a dispenser or device for dispensing rolls of woven or non-woven material for housecleaning and/or personal care purposes. Particularly, the dispenser (1) comprises a container (2) suitable to house a woven or non-woven web (W) for cleaning rooms or objects or for personal care, and means (3) for treating the web with a desired substance (10) comprising a positioning element (4) to be moved in a first position of disengagement from the web such as to allow the delivery of the latter from the dispenser in an untreated condition and a second position of engagement with said web such as to allow the latter to be delivered treated with said substance, characterized in that said positioning element (4), in the second engagement position, is suitable to hold said web directly in contact with said substance arranged in solid spreadable form, such as a stick, such that, during the delivery of the web, a thin layer of said substance is deposited on the contact surface, by means of friction.