WO2012007781A1

WO2012007781A1 - A natural fibre bra cup - solution and method of construction

Info

Publication number: WO2012007781A1
Application number: PCT/IB2010/001735
Authority: WO
Inventors: Charishma Mohini Wickremesinghe; Aariya Sylvia Thimosha Johve Sen
Original assignee: Charishma Mohini Wickremesinghe; Aariya Sylvia Thimosha Johve Sen
Priority date: 2010-07-15
Filing date: 2010-07-15
Publication date: 2012-01-19

Abstract

A Bra Cup of natural and manmade fibre composite is developed of carbonised wool only or wool as a major component in the mix of nylon, polyester or cotton fibre, natural silk fibre without any limitations in the use of fibre as a blend in the process of manufacture, its method or construction. The main objective is to secure breathability and natural air flow to the breasts to control and maintain required body temperature of 37° -38° Celsius. The construction is used as a Bra Cup solution. The inventive and novelty is the structure as well as the use in the present application to the Bra cup to eliminate the foam padded Bra cup that could lead to abnormality of cells and tissues in the breasts.

Description

A Natural Fibre Bra cup Solution and Method of Construction

Background of the Present Invention

The present invention relates to a construction of natural protein fibre and or a blend with natural protein fibre in the form of a nonwoven construction. The present invention aims to control body temperature which is of utmost importance of controlling and sustaining body temperature of 37° Celsius. Thus the necessity to change to a natural bra cup solution. This will eliminate the traditional polypropylene based synthetic foam bra cup to ensure health and safety. The present invention is developed also in hope of reducing the risks of breast cancer in women which is on the increase. The present invention is breathable, the physical properties of the protein fibre application ensures and works as temperature conductors or insulators, ensuring the breasts are in required body temperature in accordance to the environment of the wearer. The present invention is novel and inventive in its construction, method and idea. The present invention is for the use of a natural breathable bra cup to eliminate the use of foam that is a non breathable and a heat generating construction that could or may lead to a change in the development of abnormal breast tissues/ cells. History of the present Invention In the present construction the method is of nonwoven wool construction is due to the physical properties of the protein fibre. Its linkage to one another is also a natural ability which helps form the construction. The understanding of the importance of a structure with countless air pockets is for the purpose of ensuring the body is kept to the required body temperature. The construction though is not limited to the design construction or manufacture methods the focus is on maintaining body temperature which the present invention is novel and inventive. The present invention is constructed from a natural protein fibre - known as WOOL. All other animal fibres are traded as hair or fur. Wool is found in nature and is composed of keratin, an indigestible protein. The base of the bra cup of the present invention is 50 -100 % pure wool.

In the present invention the wool is carbonised which is an acid process. The process of carbonising wool is by rinsing through two bowls containing from 2-5 percent sulphuric acid solution. On passing through the squeeze rollers at the end of the second acid bowl, the acidified scoiired wool is conveyed through a dryer. The wool is dried at nearly boiling point of water and as the water evaporates the acid is taken up by the wool. The wool is then immediately neutralised in a mild scour dried and then called carbonised wool.

The present invention is mainly the focus on WOOL as to its physical properties and . its construction. As a requirement for the creation of the present invention the properties of wool was the criteria for the construction understanding the fibre and its characteristics. In the present invention the WOOL is blended with a fibre which will be detailed further in the document. The use of wool in the present invention is not limited to any percentage, however will use as to the requirement in the construction to maximise the required properties for each application.

■^' Wool as a fibre is known to be crimped or wavy The finer the fibre the more crimps per centimetre and vice versa. The crimp of the fibre is largely responsible for the warmth of the wobl article. The physical property of WOOL was an important feature in identifying the use in the present invention, "The crimp of the fibre prevents the fibre from lying close together as a yarn. The countless number of air pockets so formed trap still air which insulates and keeps body heat in, as well as the heat of the sun out. In the present invention the method of felting of wool has been identified due to the multi cellular structure characterised by overlapping surface cells, also called as "scales". These surface cells all point towards the tip of the fibre and - responsible for the felting property of wool, while contributing towards the insulating properties of WOOL. The crimp structure prevents fibres from - flushing together. Hence the scales help the formation of countless, tiny air pockets. Thus assuring, natural air circulation or breathability to maintain body temperature. In the present invention of a Wool construction, the requirement of moisture absorbency and comfort was of importance. Wool is the most absorbent natural fibre, it normally contains between 10 and 14 percent of moisture when comfortably dry. Feels damp when containing about 24 percent of moisture and absorbs just over 30 percent of moisture before feeling wet. However it would feel damp absorbing 20 percent of moisture. Due to the good to very good moisture absorbency of wool it is a very comfortable fibre under most conditions and for the purpose of the present invention. In the present invention a further consideration to the application was the physical properties of wool in terms of elasticity. It is also probably the most resilient fibre in the common use. It is know that because of the wool's very good elasticity and resilience, wool fabrics and garments have good wrinkle recovery. When moist elasticity increases. It is known while hanging our wool garments the majority of the wrinkie fall out, due to humid night air As to the present invention of a Bra cup, consideration has been also focused on safety in terms of fire, heaters. Being protein fibre wool does not ignite readily and they smoulder rather than burn. Wool is thus one of the safest fibres in common use. In the present invention the Wool fibre is blended to structure to the requirement of the application. The recommendation for this purpose is a blend of Nylon/Polyester/cotton/ or pure silk. The percentage of Nylon/ Polyester/cotton, or pure silk could vary from 0- 40 percent without any limitations to any change as required for the application. The felted Wool bnlyblend could be used as single fibre wool or as a blend as best performance to the application. Blending is done primarily to minimise the disadvantageous properties of the fibre brought together. These disadvantages properties may be chemical, physical or economic. In the present invention it is related to physical. In the present invention it is related to keep the structure in accordance to the shape and size of the application.

The most advantageous properties of wool are elasticity and resilience, moisture absorbance and insulating properties.

Jhe present invention is formatted in to the required bra cup with relevant material as inner and outer lining without any limitations to its application. The moulding of the cup could vary to required thickness that will be achieved in the process of felting and its percentages of fibre used in its construction. Recommendation for the inner and outer lining is a blend of natural and manmade fibre in percentages of 0-100 as per the requirement for its application. The aim in the present invention is to the construction of fibres, is of open construction.

The main focus of the bra cup natural fibre solution is to eliminate the polypropylene foam based cup that details widely on the objectives of the present invention. Disclosure of the Invention/ Method of construction The main component carbonized wool only or blended with nylon or polyester or pure silk or cotton fibre as specified. The Main component of wool has no limitations in the fibre blend in the present invention. 1. 80% card wool 20 % Nylon fibre web folded in half and fed through the hydro entanglement machine at 5m/min. Injector pressure at 30 bar, 80 bar & 120 bar.

2. 50% card wool 50% Nylon fibre web folded in half and fed through the hydro entanglement machine at 5m/min. injector pressure of 30bar, 80bar and 120 bar the material fed through the machine again at 2m/min. Injector pressure at 30 bar, 80 bar & 299 bar.

3. The carbonised 100% wool felted in the card wire, 70g of 18.5 micron wool is folded in half and fed through the hydro- entanglement machine. The settings at 5m/min and injector pressures of 30 bar, 80 bar, and 120 bar. The material developed turned over and re introduced to the machine so the injectors were now hitting the opposite side. The settings at 30 bar, 80 bar, and 120 bar. 4. The present invention also related to a blend of wool and polyester or pure silk or cotton fibres and would replace the nylon content and replaced with polyester, pure silk or cotton on same settings and percentages.

5. The use of any fibre in which the main component of the protein fibre wool has no limitations and any other fibre will be used accordingly to give the maximum edge to the application in the development of a Bra cup solution to maintain body temperature to ensure health and safety. 6. The web could be set at parallel laid cross-laid or random laid for felting. The present invention could be constructed in the form of felts Vnonwovens or knits. The term felt refers the densely mattered non-woven fabrics that are produced from animal hair fibres as a result of their inherent ability to become entangled.

In the present invention carbonized wool is carded and combed initially and used as a single fibre or as a blend of Cotton/ Nylon/ polyester/natural silk to form a web. The blend has no limitations in the present invention and will be used according to the applications and performance required. The main focus of the present invention is to ensure breathability to skin to maintain body temperature of 37° Celsius.

Claims

l Claims:

2

3 1. A solution for a bra cup comprising natural wool 100% or a blend of nylon or

4 polyester or pure silk or cotton.

6 2. A solution for a bra cup according to claim 1 is structured as a non woven felted

7 structure.

9 3. A solution for a bra cup according to claim 1 , including the step of carbonising the0 wool through an acid process.

1 ^'

2 4. The carbonising process as claim 3 is by rinsing the wool through two bowls3 containing 2%-5% Sulphuric Acid solution.

4

5 5. The carbonising process as claim 3 and 4 including the step of passing the wool6 through a squeeze roller at the end of the second acid bowl and then acidified7 scoured wool is conveyed through a dryer and immediately neutralised in a mild8 scour dried.

9/ :

0 6. A solution for a bra cup according to claim 1 wherein the blending is done through1 a Hydro-Entanglement Machine as detailed below;

2 - 80% card wool 20% Nylon fibre web folded in half and fed through the3 hydro entanglement machine at 5m/min. Injector pressure at 30 bar, 804 bar & 120 bar. - 50% card wool 50% Nylon fibre web folded in half and fed through the hydro entanglement machine at 5m/min. Injector pressure of 30bar, 80bar and 120 bar the material fed through the machine again at 2m/min. Injector pressure at 30 bar, 80 bar & 299 bar.

- The carbonised 100% wool felted in the card wire, 70g of 8.5 micron wool is folded in half and fed through the hydro- entanglement machine. The settings at 5m/min and injector pressures of 30 bar, 80 bar, and 120 bar. The material developed turned over and re introduced to the machine so the injectors were now hitting the opposite side. The settings at 30 bar, 80 bar, and 120 bar. 7. The blending according to claim 6 also relates to a blend of wool and polyester or pure silk or cotton fibres and would replace the nylon content and can be replaced with polyester or pure silk or cotton on same settings and percentages. 8. A solution for a bra cup according to claim 1 can be constructed with use of any fibre in which the main component is protein fibre wool which has no limitations and any other fibre can be used accordingly to give the maximum edge to the application in the development of a Bra cup solution to maintain body temperature to ensure health and safety. 9. For the purpose of blending according to claim 6 the fibre (wool and other fibre) could be set at parallel laid cross-laid or random laid.

10. A solution for a bra cup according to claim 1 wherein the structure and the thickness of the application may be adjusted according to the requirement without any limitation to its method of construction. 11, A solution for a bra cup according to claim 1 wherein the use of the structure in 0 to100% wool or blends in knitted, woven or felted may be as per the required application without any limitation to its method of construction. 12. A solution for a bra cup according to claim 1 is finally formatted into the required bra cup with relevant materials as inner and outer lining without any limitation to its application. 13. A solution for a bra cup according to claim 1 wherein the moulding of the cup could vary to required thickness that will be achieved in the process of felting and its percentage of fibre used in its construction.