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What Is Microfiber Leather
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What Is Microfiber Leather

    What Is Microfiber Leather


    Microfiber leather is an abbreviation of ultrafine fiber PU

synthetic leather. It is a non-woven fabric made of three-dimensional structure network by carding acupuncture with

microfiber staple fiber. After wet processing, PU resin impregnation, alkali reduction, and dermabrasion and polishing And

other processes eventually make microfiber leather. It is made by adding ultra-fine fiber to PU polyurethane, which makes the

toughness, air permeability and abrasion resistance further strengthened; it has extremely excellent abrasion resistance,

excellent cold resistance, breathability, and aging resistance. Eco-friendly, Comprehensive performance beyond real leather.

Widely used for automotive, garment, bags, sofa, shoes, boots, basketball, belt, jewellery box and so on. We are specialize

in microfiber leather production manufacture.We provide the optimal leather options, the best leather substitute and best

leather alternatives for automotive seat covers and interiors, furniture & sofa upholstery, footwear and shoes, bags,

garments, gloves, balls, etc.


   



    While synthetic leather were once considered not suitable for high quality shoes, 

PU microfiber leather has changed how

shoes are made.


   



    Microfiber leather is designed to hold up against weather conditions and the wear and tear of walking and running over an

extended period of time.


   



    They can retain their form very well, and thus are usually very durable if cared for properly. They're also more

water-resistant and lighter than real leather, making them great for long wear and outdoor activities.


   



    We found this video, below, that tests how durable shoes made with suede microfiber leather are. Check it out!


   



    Microfiber leather, or micro fiber leather, is the highest quality grade synthetic leather (faux leather or PU leather),

a high-tech simulation of high-end leather material. WINIW Microfiber Leather is simulated the structure of natural leather,

using sea-island superfine micro fiber (ultra-fine fiber bundle), and high-grade polyurethane resins as raw materials, using

needle punched nonwoven technology of 3D structure, has a lot of similar characters as natural leather, however better

physical & chemical performance, has been widely popular around the world. Because of superior performance, WINIW microfiber

synthetic leather has been the best leather alternatives and the optimal leather substitute, material, best vegan leather and

eco leather, can replace natural leather perfectly!


   



    Compared to natural leather, microfiber synthetic leather has many excellent qualities, such as chemical resistance and

physical and mechanical properties. However, preparation of microfiber synthetic leather with a high water vapor transmission

rate (WVT), moisture absorption and wearing comfort property is still a challenge. In this study, we prepared thermoplastic

polyurethane (TPU)/sulfonated polysulfone (SPSf) electrospun nanofibers and applied them to a microfiber synthetic leather

base (MSLB). The effects of TPU/SPSf nanofiber content on the structure and properties of the MSLB were investigated. The

results indicated that the TPU/SPSf nanofibers with an average diameter of 0.12?μm were well distributed at all directions

in the MSLB. Differential scanning calorimetry analysis showed four Tg peaks, further demonstrating the existence of TPU/SPSf

nanofibers. With the increase of TPU/SPSf nanofiber content from 0 to 30?wt%, the contact angles decreased gradually from

111.64° to 67.07°, leading to 55.19% improvement in the WVT value (from 2868.96 to 4452.24?g/(m2?24?h)) and 26.25%

improvement in the moisture absorption (from 628.70% to 793.75% mm/s). Simultaneously, when the nanofiber content was 30?wt%,

the nanofibers tended to bundle and 6.79% decrement of air permeability was observed. Specifically, the softness of the MSLB

was improved by 88.55%. Moreover, the thermal stability and the tear strength were also obviously enhanced. Consequently,

this research provided a feasible and promising way to prepare a high-performance MSLB using TPU/SPSf nanofibers.


   



    The difficulty in dyeing microfiber base

filled with ordinary polyurethane presents a significant challenge in maintaining the uniformity and highly realistic

appearance of the resulting products. In the present study, a type of acid-dyeable polyurethane (PU-MDEA; MDEA=N-

methyldiethanolamine) was synthesized, and its chemical structure and dyeing properties were investigated. Nuclear magnetic

resonance analysis indicated that cationic groups were successfully incorporated into the PU-MDEA backbone via chain

extension using MDEA. The amorphous nature of PU-MDEA was determined by differential scanning calorimetry, X-ray diffraction,

and polarizing optical microscopy. Owing to the strong binding between these cationic groups and acid dye, as well as the

reduced resistance to dye penetration, PU-MDEA showed better dyeability toward the acid dyes studied herein when compared

with the control sample (microfiber synthetic leather filled with ordinary polyurethane). The adsorption isotherm experiment

revealed that the dyeing process conformed to the Langmuir model, thereby indicating that the acid dyes attached to PU-MDEA

via strong ionic bonding rather than van der Waals forces or hydrogen bonding. Additionally, it was found that the wastewater

resulting from the dyeing of the microfiber synthetic leather filled with PU-MDEA exhibited environmentally friendly

characteristics when compared with that displayed by the control sample (microfiber synthetic leather filled with ordinary

polyurethane). Thus, the current results show the potential of PU-MDEA, as a filler, in the manufacture of microfiber

synthetic leather to achieve fast dyeing rate, high dye uptake, and good color fastness, thereby improving the uniformity and

highly realistic appearance of the resulting products.


    Bonded leather is called ‘leather’ because it incorporates scraps of leather remnants, which comprise between 10-20% of

its content. The scraps of leather are made into a pulp and stuck to a fibre or paper backer which is then coated with

polyurethane and embossed to give it the appearance of genuine leather.


   



    The price of an article is an immediate indication as to whether you are buying genuine leather. At a glance, bonded

leather may look like the real thing but it will feel thin to the touch and will lack the softness of real leather, it may

also exude a chemical smell.


   



    WHAT IS BONDED LEATHER MATCH?


    This term refers to the ability of bonded leather manufacturers to replicate the appearance of real leather, although it

is likely that the product may be dyed in a striking range of unnatural colours.


   



    For most people this will be a choice dictated by the comparative low cost of the product; some may choose bonded leather

because it can be regarded as environmentally friendly, in so much as it uses left overs and does not involve additional

farming and, potentially, reduces landfill. The product is also easy to clean and is likely to come in a wide range of design

options.


   



    Bonded leather should be wiped with a clean damp cloth and wiped dry with a different cloth. Spilt liquids should be

cleaned immediately but no detergents or abrasive cleaners should be used. Non-alkaline cleaners and non-detergent soaps can

be used but the material should always be tested for colour fastness on a small unobtrusive area first.


   



    HOW DURABLE IS BONDED LEATHER?


    Bonded leather is not a durable product. Generally, furniture made from bonded leather is likely to peel and crack within

two to five years.


   



    WHAT CAUSES BONDED LEATHER TO PEEL AND CRACK? 


    Bonded leather is a non-elastic material; therefore, it has a tendency to crack with use, strips of polyurethane and

leather will then start to peel away from the backing.


   



    WHY IS BONDED LEATHER BAD?


    Compared with leather, bonded leather has a very short lifespan. It is prone to cracking and peeling and once it has

deteriorated beyond a certain point it is impossible to repair. Although a bonded leather may be cheaper than real leather,

it’s short life span means that in the long run the cost of replacing a bonded leather item can be more expensive. There is

also the argument that this also makes it less environmentally friendly.


   



    HOW TO REPAIR BONDED LEATHER  


    There are repair kits on the market which enable you to make small repairs to bonded leather. The affected area must be

sanded to remove any protruding bits of leather, a patch can then be dyed to match or the fabric under the peel can be dyed

and sealed to stop further peeling. The resulting repair will be noticeable but will be an improvement.


   



    HOW TO FIX BONDED LEATHER SCRATCHES  


    First clean the area with a white cloth to ensure that no dye is transferred. Then mix a leather repair solution together

with an appropriate tint. Add a small quantity of the mixture to the affected area and around the affected area. Then place

leather grained paper, supplied with the kit, over the area and gently iron with a warm iron, this will transfer the pattern

to the repair. Be careful to ensure that the iron is not too hot because it may discolour or damage the bonded leather. For

minor scratches, it may be possible to affect a repair with the use of shoe polish. You should also check any new products on

a small inconspicuous area of the leather item first.


   



    Top Grain leather is the second highest grade quality of leather and is the lower part of the top layer of the hide. One

removed it is sanded and refinished. It comes in two grades, aniline, which is natural soft leather which is vulnerable to

stains and semi-aniline which has a protective coating. Top Grain leather is comprised of twelve to fourteen percent water

and consequently it adjusts to body temperature: it is cool in summer and warm in winter. With bonded leather the reverse is

the case.


   



    BONDED LEATHER VERSUS REAL LEATHER 


    Real Leather, also referred to as Genuine Leather is the third grade of leather, taken from the lower, thinner layer of

the hide. The surface is then reworked to resemble a higher-grade leather. It is not as tough as Full grain leather or Top

Grain leather but is considerably more durable than bonded leather.


   



    BONDED LEATHER VERSUS FAUX LEATHER 


    Faux leather, sometimes referred to as Pleather, contains no animal products and is made from polyurethane. It can be

embossed with any texture and looks and feels like genuine leather. It is water resistant and easy to clean. Unlike bonded

leather it does not crack or fade in sunlight, it is however, easy to tear or puncture. It is also considered less

environmentally friendly due to the chemicals and toxins used in its production – although this varies depending on the

exact process and materials used to produce it.


   



    BONDED LEATHER VERSUS DURABLEND


    Durablend is a low-cost leather alternative, similar to bonded leather and comprising of 57% polyurethane, 26%

poly/cotton and 17% leather shavings. It is the trademark product of Ashley Furniture. Customer reviews suggest that it

shares similar weaknesses with bonded leather in so much as it scratches easily and is prone to cracking.


   



    BONDED LEATHER VERSUS VINYL 


    Polyvinyl chloride, popularly known as Vinyl or PVC is a faux leather which has been produced since the 1940’s by

chemical companies like DuPont. It is used for shoes, car interiors and upholstery. Not as breathable as bonded leather, skin

tends to stick to its surface, which makes it unpleasant seating in hot weather, it is easy to clean and maintain. Like

bonded leather it cracks with use and is easy to puncture.


   



    BONDED LEATHER VERSUS MICROFIBER 


    A much more sophisticated form of faux leather: polyurethane resin and ultra- fine

microfiber leather for automotive are combined

to replicate the microscopic structure of leather. The complexity of its construction mean that it is more expensive than

other faux products but it does have a number of advantages over bonded leather. It doesn’t scratch or tear and is non-

fading. It breathes like real leather but it also has ant -bacteria and anti-mildew properties. Unlike bonded leather it is

completely odourless.


   



    BONDED LEATHER VERSUS REXINE 


    Rexine is the registered trademark of a British artificial leather which has been produced since the 1920’s. Essentially

a cloth backing is coated with cellulose nitrate and embossed to produce the illusion of leather. Primarily used for car

interiors this is now regarded as retro faux leather and as such is sort out by collectors.


   



    BONDED LEATHER VERSUS BICAST


    Bicast is constructed using a split leather backing to which a layer of polyurethane is applied. The surface is then

embossed to give the appearance of leather. It shares many of the qualities of bonded leather: it has a consistent texture

and is easy to clean and maintain but it doesn’t breathe like leather and it lacks strength and durability.


   



    BONDED LEATHER VERSUS LEATHERETTE 


    Leatherette is a plastic based synthetic leather. Unlike bonded leather it does not scratch and it does not fade in

sunlight. Like most faux leather, it does not breathe and is unpleasant next to the skin. Although it might be the preferred

choice of those who don’t like to use animal products, it is made from non- biodegradable, non-renewable materials and is

therefore considered less environmentally friendly.


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