Pengaruh Proses Bleaching Terhadap Finishing Kayu Pinus Dan Kayu Karet Terserang Blue Stain: The Effect of Bleaching Process on Finishing of Pine Wood and Rubber Wood Attacked by Blue Stain

Desy Mulyosari; Arip Wijayanto; Soleh Muhamad; Nurhanifah Nurhanifah; Siska Anggiriani; Taufik Ramadhan Fitrianto; Wahyu Widiyanto

doi:10.22437/jurnalsilvatropika.v9i1.44692

Authors

Desy Mulyosari Politeknik Industri Furnitur dan Pengolahan Kayu
Arip Wijayanto Politeknik Industri Furnitur dan Pengolahan Kayu
Soleh Muhamad Politeknik Industri Furnitur dan Pengolahan Kayu
Nurhanifah Nurhanifah Politeknik Industri Furnitur dan Pengolahan Kayu
Siska Anggiriani Politeknik Industri Furnitur dan Pengolahan Kayu
Taufik Ramadhan Fitrianto Politeknik Industri Furnitur dan Pengolahan Kayu
Wahyu Widiyanto Politeknik Industri Furnitur dan Pengolahan Kayu

DOI:

https://doi.org/10.22437/jurnalsilvatropika.v9i1.44692

Keywords:

bleaching, blue stain, kayu karet, kayu pinus

Abstract

ABSTRACT

One of the problems faced by the furniture industry is the attack of coloring fungi or what is commonly called blue stain. The attack of coloring fungi causes color changes so that the appearance of the wood decreases. The bleaching process is one way that can be done to overcome the attack of blue stain. The bleaching process in the industry uses the chemical white agent 250 (WA-250). However, research related to the effect of the bleaching process on the finishing of pine wood and rubber wood attacked by blue stain has not been carried out. This study aims to determine the effect of the bleaching process on the finishing of pine wood and rubber wood attacked by blue stain. Finishing tests include testing the adhesion of the finishing layer (cross cut test) referring to ASTM D 3359, flexibility testing is carried out with a coin test, and hardness testing refers to ASTM D 3363. The results of this study are that the bleaching process does not affect the finishing process on pine wood and rubber wood attacked by blue stain, both those treated with bleaching and those without bleaching treatment, which are included in the same finishing quality category. Based on the adhesion test, it is included in class 4B (Good) and its flexibility gets a value of 5 (very good), while the hardness of the finishing layer is in the less category.

Keywords: bleaching, blue stain, finishing, pine wood, rubber wood

ABSTRAK

Permasalahan yang dihadapi oleh industri furnitur salah satunya adalah serangan jamur pewarna atau yang biasa disebut blue stain. Serangan jamur pewarna tersebut menyebabkan perubahan warna sehingga terjadi penurunan penampilan kayu. Proses bleaching merupakan salah satu cara yang dapat dilakukan untuk mengatasi adanya serangan blue stain. Proses bleaching pada industri menggunakan bahan kimia white agent 250 (WA-250). Namun, penelitian terkait pengaruh proses bleaching pada finishing kayu pinus dan kayu karet terserang blue stain belum dilakukan. Penelitian ini bertujuan mengetahui pengaruh proses bleaching terhadap finishing pada kayu pinus dan kayu karet yang terserang blue stain. Pengujian finishing meliputi pengujian daya lekat lapisan finishing (cross cut test) mengacu pada ASTM D 3359, pengujian fleksilbilitas dilakukan dengan coin test, dan pengujian kekerasan mengacu pada ASTM D 3363. Hasil penelitian ini adalah proses bleaching tidak mempengaruhi proses finishing pada kayu pinus dan kayu karet yang terserang blue stain baik yang diberi perlakuan bleaching maupun tanpa perlakuan bleaching masuk dalam kategori kualitas finishing yang sama. Berdasarkan uji daya lekat termasuk pada kelas 4B (baik) dan fleksibilitasnya memperoleh nilai 5 (sangat bagus), sedangkan kekerasan lapisan finishingnya kategori kurang.

Kata kunci: bleaching, blue stain, finishing, kayu karet, kayu pinus

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References

American Society for Testing and Materials (ASTM). 2010. Standard test method for film hardness by pencil test. ASTM D3363–00. ASTM. West Conshohocken, PA, USA. https://www.astm.org/d3363-00.html

American Society for Testing and Materials (ASTM). 2012. Standard test methods for measuring adhesion by tape test. ASTM D 3359-02. ASTM. ASTM. West Conshohocken, PA, USA. https://www.astm.org/d3359-02.html

Australasian Timber Flooring Association (ATFA). 2018. Assessing the hardness of coatings. Australasian Timber Flooring Association Ltd, 1–3.

https://www.atfa.com.au/wp-content/uploads/2019/01/86_Assessing-the-hardness-of-coating.pdf

Bowyer JL, Shmulsky R, Haygreen JG. 2003. Forest Products and Wood Science: An Introduction. Four Edition. Iowa (USA): Iowa state Press

Çakicier N, Korkut S, Sevim Korkut D. 2011. Varnish layer hardness, scratch resistance, and glossiness of various wood species as affected by Heat treatment. BioResources 6(2):1648–1658.

Choi JH, Kim HJ. 2006. Three hardness test methods and their relationship on UV-curable epoxy acrylate coatings for wooden flooring systems. Journal of Industrial and Engineering Chemistry 12(3):412–417.

Hazir E, Koc KH. 2019. Evaluation of wood surface coating performance using water based, solvent based and powder coating. Maderas: Ciencia y Tecnologia 21(4):467–480.

Hill CAS. 2006. Wood Modification: Chemical, Thermal and Other Processes. England (UK): John Wiley & Sons Ltd.

Ismanto A, Martono D. 2013. Aktivitas fungisida bahan pengawet kayu berbahan aktif majemuk terhadap jamur biru (Diplodia sp). Jurnal Sains Natural Universitas Nusa Bangsa 3(2):146–153.

Kesik HI, Sonmez A, Budakci M, Cagatay K. 2022. The impact of stain removal and bleaching on the adhesion strength of water-based varnish layers in oak. Journal of Biometry Studies 2(1): 32-37.

Listyanto T. 2018. Teknologi Pengeringan Kayu Dan Aplikasinya. Yogyakarta (ID): UGM Press.

Nakamura K, Furuta N, Miyazaki J, Nakamura N. 2024. Sodium hypochlorite–based binderless technology for solid wood adhesion: application of a commercial bleaching agent for adhesion and observation of surface characteristics. Journal of Wood Science 70(53): 1-10

Prayitno TA, Sari RAM, Widyorini R. 2013. Sifat finishing kayu jati setelah perlakuan panas. Prosiding seminar nasional masyarakat peneliti kayu (MAPEKI) ke- XVI. (pp 75-82), Banjarmasin, Indonesia.

Ramananantoandro T, Eyma F, Belloncle C, Rincé S, Irle M. 2018. Effects of machining parameters on raised grain occurring after the application of water-based finishes. European Journal of Wood and Wood Products 76(4):1323–1333.

Widyorini R, Khotimah K, Prayitno T. 2014. Pengaruh suhu dan metode perlakuan panas terhadap sifat fisika dan kualitas finishing kayu mahoni. Jurnal Ilmu Kehutanan 8(2):65–74.

Wijayanto A, Nurhanifah N, Anggiriani S, Muhamad S. 2023. Pengaruh perlakuan bleaching terhadap perubahan warna dan sifat finishing kayu pinus (Pinus sp.) terserang blue stain. Jurnal Riset Industri Hasil Hutan 15(1): 13-20.

Wijayanto A, Nurmadina, Wasono D, Afkarina, I. 2021. Evaluasi kualitas finishing water and solvent based yang diaplikasikan pada kayu lapis. Jurnal Riset Industri Hasil Hutan 2 (13):73-82.