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        <div id="content-top1">Page 14 - Turkcoat Dergisi AÄŸustos/EylÃ¼l 2020 SayÄ± 89</div>
        <div id="content-top2">P. 14</div>
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    <pre style="white-space:pre-line"><code>Makale

Dr. Sevgi KuzugÃ¼denli              Ä°nci Oya KuzugÃ¼denli              Dr. Ã–mer Edip KuzugÃ¼denli

         CerrahpaÅŸa TÄ±p FakÃ¼ltesi               Avrupa Komisyonu                                             Uzman
Ä°stanbul Ãœniversitesi-CerrahpaÅŸa              BÃ¼tÃ§e Dairesi/BrÃ¼ksel            YÃ¼zeyler ve Kolloidal Sistemler

GeÃ§miÅŸten GÃ¼nÃ¼mÃ¼ze Boya

BoyanÄ±n geÃ§miÅŸi insanlÄ±k tarihi kadar eskidir. Ä°lk in-    GÃ¼nÃ¼mÃ¼zde boyalar Ã§ok daha bÃ¼yÃ¼k miktarlarda ve
sanlar doÄŸada bulduklarÄ± bitki, mineral veya hayvan       renk tonlarÄ±nÄ±n sayÄ±sÄ± artmÄ±ÅŸ olarak yaygÄ±nca kullanÄ±l-
kÃ¶kenli renklendiricileri koruyucu kaplama, sÃ¼sleme,      maktadÄ±r. UygulandÄ±klarÄ± yÃ¼zeyi koruma, gÃ¼zelleÅŸtir-
iÅŸaretleme gibi amaÃ§larla kullanmaya baÅŸladÄ±lar. Bu       me, renklendirme, farklÄ±laÅŸtÄ±rma veya bir tehlikeye
renklendiricileri vÃ¼cutlarÄ±na Ã§ekicilik, dÃ¼ÅŸmana karÅŸÄ±    karÅŸÄ± uyarma, boyalarÄ±n kullanÄ±m alanlarÄ±na birkaÃ§
korkutuculuk, iÃ§inde bulunduklarÄ± Ã¶zel gÃ¼nler, grup       Ã¶rnek olarak verilebilir. Boyalar genellikle sÄ±vÄ± formda
veya kabileye aitlik niÅŸanÄ± olarak vÃ¼cutlarÄ±na sÃ¼rmeleri  karÄ±ÅŸÄ±mlar olup farklÄ± amaÃ§lara hizmet eden Ã§Ã¶zÃ¼cÃ¼,
de yaygÄ±n uygulamaydÄ±. Renk tÃ¼rlerinin ve el beceri-      baÄŸlayÄ±cÄ±, dolgu maddesi ve renklendirmeyi saÄŸlayan
lerinin artmasÄ± insanlarÄ± boyalarÄ± Ã§evrelerinde gÃ¶rdÃ¼k-   pigment denen temel bileÅŸenlerden oluÅŸur. KullanÄ±lan
lerini resmetme ve sanatsal Ã¼rÃ¼nler ortaya koymaya        Ã§Ã¶zÃ¼cÃ¼nÃ¼n tÃ¼rÃ¼ne gÃ¶re su ve yaÄŸ bazlÄ± olmak Ã¼zere
da yÃ¶nlendirdi. Bu Ã§alÄ±ÅŸmalarÄ±n gÃ¼nÃ¼mÃ¼ze gelebilmiÅŸ       iki gruba ayrÄ±lÄ±rlar [2]. Boyalar ince bir tabaka ÅŸeklinde
Ã¶rneklerini dÃ¼nyanÄ±n dÃ¶rt bir tarafÄ±nda gÃ¶rmek mÃ¼m-       istenilen yÃ¼zeye uygulanÄ±r ve orada katÄ± bir film oluÅŸ-
kÃ¼ndÃ¼r. Ã–rneÄŸin, Fransaâ€™nÄ±n gÃ¼neybatÄ±sÄ±nda yer alan       turulurlar.
Lascaux maÄŸarasÄ±nda bulunan ve doÄŸadan gÃ¶rÃ¼ntÃ¼-
ler iÃ§eren 600 civarÄ±nda resmin 17 bin yÄ±l kadar Ã¶nce-
ye ait olduÄŸu tahmin ediliyor [1], Resim 1.

Resim 1. Lascaux maÄŸarasÄ±nda bulunan hayvan                Resim 2. Maske yÃ¼zeyinin boyanmasÄ± hava akÄ±mÄ±nÄ±
              resimlerinden bir Ã¶rnek [1]                                         azaltabilmektedir

                                                          BoyalarÄ±n bileÅŸimi, uygulanmasÄ±ndaki kolaylÄ±k, boyalÄ±
                                                          yÃ¼zeyin mikroorganizmalarÄ± barÄ±ndÄ±rma potansiyeli,
                                                          bu yÃ¼zeyin kullananlar ve Ã§evre iÃ§in gÃ¼venliÄŸi gibi ko-
                                                          nularÄ±n Ã¶nemi gÃ¼n geÃ§tikÃ§e artmaktadÄ±r. Sade bir yÃ¼-

12 AÄŸustos - EylÃ¼l 2020</code></pre>
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