There are very few research works published on the PALF reinforced with polymers [146]. The alkalization process makes the fibres surface rough and improved mechanical hold. Furthermore PALF-epoxy composites will exhibit a positive result in interfacial bonding when combination of alkalization and DGEBA solution will be used. Transformation maximum stress between fibres and matrix has been calculated for the composite of banana and sisal fibre ratio 3 : 1, showing lowest impact strength. Pineapple leaf fibres (PALF) are renounced as possible and plentiful substitutes for the high-priced and nonrenewable synthetic fibres. Pineapple natural fibres have excellent mechanical strength but due to lack of knowledge it is still not utilised properly. Production of pineapple leaf fibre, sequential (a) plantation of pineapple, (b) fruit of pineapple, (c) extraction of fibres from pineapple leaves, and (d) Indonesian PALF. In India, it is cultivated on about 2250 000 acres of land [92] and is continuously increasing its production. Natural fibres reinforced polymers are susceptible to humidity and water absorption that causes a physical degradation of final product. In the middle of 20th century, synthetic fibres rose up drastically, and natural fibres industries collapse its market shares. It produces a huge amount of waste material, about 384,673 metric tonnes in year 2008 [2]. Individual strength of fibres is combined to achieve improved composite with better efficiency. In study of stress behaviour of PALF reinforced polyethylene composite, stress is inversely proportional fibre content. The quality of the pineapple which is used for extraction of fiber is different from what is grown as a fruit. Technical Association of Pulp and Paper Industry (TAPPI) [115] standards reported that the chemical constituents and extractive like holocellulose, α-cellulose, lignin, and ash content of PALF were analysed from different source of fibres, age of fibres, and climatic conditions. PALF enhances the mechanical properties of the polymer matrix through its own high specific strength. Pineapple is very rich source of bromelain and other cysteine proteases are present in different part of pineapple [95, 96]. Natural fibres are highly affected by its growing environment such as composition of soil, temperature, humidity, and frost. Epoxy resin has excellent properties like adhesion, strength, low shrinkage, corrosion protection, and many other properties [128]. Materials in water tank are regularly checked by using finger to ensure fibre are loosened and can extract many chemical constituents like pentosans, lignin, fat and wax, ash content, nitrogenous matter, and pectin. Pineapple leaf fibre (2.3–3.9 mm) and recycled disposable chopstick fibres were integrated into PLA and PBS. Pineapple, being rich in fiber, is a great food for diabetics and intake of pineapple leaves results in improved blood sugar, insulin, and lipid levels. Various combinations of natural lignocellulosic composite are promising interest of researchers. The manual process of extracting fiber is very laborious, time consuming and also there tends to be a lot of wastage. Industries are widely using plant fibres for numerous applications from many resources. The fiber is then sent for warping and weaving. Toughness of composite material is reached up to the benchmark of engineering materials. The major problem of natural fibres as a reinforced material is improper contact of adherent surface and polymer matrix with a bad interaction load transformation from matrix to fibre [32]. A pineapple leaf fibre reinforced with polyethylene exhibits high performance composites [9]. Yarn Count System and Determination by Different Methods, Hemp Fiber: Properties, Processing and Uses, Fabric Spreading and Its Requirements for Garment Making, Project Management in Textile and Apparel Industry, Garments Dyeing: Process, Machines, Advantages and Disadvantages, Properties, Processing and Uses of Kenaf Fiber, Garments Fabric Cutting: Definition, Requirements and Methods, Natural Dyes: Dyeing Process and Environmental Impact, Fabric Cutting Machines with Advantages and Disadvantages, Milkweed Fiber: Properties, Processing and Applications, Kapok Fiber: Properties, Processing and Applications. To overcome this issue PALF surface is modified to improve bonding. Fiber bundle strength decrease by 50% when wet. Freshly harvested green leaf bundles are used for fiber extraction. Yarn strength increase by about 50% when wet. The plant is called “pineapple” because of its fruit which look like pine cone. In Philippines and Taiwan, the pineapple plant is largely used as a source of fiber. In 17th century Americans imported pineapple from Caribbean because of its apparently exotic features and rareness; pineapple began to be considered as an icon of wealthy people in America. In this method a lot of fiber is lost and the entire process is also very laborious. Thus, to enhance the adhesion property of fibres, it needs surface modification by using appropriate chemicals. (The leaves of the red pineapple can grow up to a yard long.) For -cellulose sample, another peak frequency at 1725.25 cm−1 shows C–O bending frequency. A future prospect of diversified application of PALF is presented in Figure 3. In the last two decades, a lot of researches have been carried out to optimize the problem of the interfacial adhesion between natural fibres and polymer matrices [82]. Tahir, Mohammed Nasir, Natural Fibers by Dr. Abu Bakr Siddique & Dr. Hosne Ara Begum, M. Asim,Khalina Abdan, M. Jawaid, M. Nasir, Zahra Dashtizadeh, M. R. Ishak, and M. Enamul Hoque “A Review on Pineapple Leaves Fibre and Its Composites” vol. In comparison to other natural fibres, pineapple leaf fibre (PALF) shows excellent mechanical and physical properties but the hydrophilic nature of PALF causes a negative impact. In a transmission electron microscopy, PALF cell wall shows distinct different layers as primary (P), secondary, and tertiary (S1, S2, and S3) layers. Physical and mechanical properties of composites like viscoelastic behaviour processing, tensile strength, flexural strength, and impact are dependent on length of fibre, matrix ratio, and fibre arrangement [25, 26]. 6. Commercially pineapple fruits are very important and leaves are considered as waste materials of fruit which is being used for producing natural fibres. The moisture absorption of chemically modified PALF-reinforced LDPE composites shows considerably less moisture content [29]. Among the two mechanical grinding methods studied, wet ball milling is much slower but provides PALF with a greater number of elementary fibre [114]. These methods have been proved to be a very effective modification to enhance the adhesion property of PALFs with polymer matrix. A mixture of pineapple juice and sand is powerful cleaner for boat decks. Table 7 shows the physical and mechanical strength of PALF. The most important property of natural fibre is biodegradability and noncarcinogenic which bring it back into fashion, with an advantage of being cost-effective. In the mechanical process, the green leaf is cursed in a raspador machine. Cell dimension of lignocellulosic fibres depends on the species, maturity, and location of the plant and also on the fibre extraction conditions [1]. Sign up here as a reviewer to help fast-track new submissions. PALF has higher cellulosic content as compared to other natural fibres like oil palm frond, coir, and banana stem fibres [116]. PALF shows good elastic property in cellulose type I structure. The Portuguese contributed their important role in introducing the fruit throughout the whole tropical regions and major parts of world like south and east coast of Africa, Madagascar, south India, China, Java, Philippines, and Malaysia [47].