In this paper, size formulations for cotton yarns suitable for weaving fabrics in an environment of lower relative humidity (RHs) are investigated, which is desirable for both human comfort and the reduction of energy costs during fabric production. Moisture regain, tensile strength and abrasion resistance of cotton yarns sized with different size formulations were studied at 28℃ and various RHs. While the tensile strength of sized yarns with different size formulations was hardly affected by RH, both their abrasion resistance and weavability vary significantly with RH. Better abrasion resistance and weavability of cotton yarns sized with polyvinyl alcohol (PVA) and modified starch were achieved at 60% RH, and they were obtained at 70% RH for cotton yarns sized with PVA, modified starch and polyacrylic acid size. It was thus concluded that the selection of suitable size formulations could enable corresponding sized yarns to be weaved at lower RH. The suitable size formulation was composed of 60% oxidized starch, 30% PVA1799 and 10% polyacrylic acid size. It was noticed that better abrasion resistance of yarns sized with solely modified starches were obtained at 65% RH.

中文翻译：

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在较低相对湿度下织造棉纱的上浆配方

在本文中，研究了适用于在较低相对湿度 (RH) 环境中织造织物的棉纱上浆配方，这对于人体舒适度和织物生产过程中的能源成本降低都是理想的。研究了不同浆料配方上浆的棉纱在28℃和不同相对湿度下的回潮率、拉伸强度和耐磨性。虽然不同浆液配方的浆纱的拉伸强度几乎不受 RH 的影响，但它们的耐磨性和可织性随 RH 变化显着。聚乙烯醇（PVA）和改性淀粉上浆的棉纱在 60% RH 下获得了更好的耐磨性和可织性，而 PVA、改性淀粉和聚丙烯酸上浆的棉纱在 70% RH 下获得了更好的耐磨性和可织性。因此得出的结论是，选择合适的上浆配方可以使相应上浆的纱线能够在较低的相对湿度下织造。合适的胶料配方由 60% 氧化淀粉、30% PVA1799 和 10% 聚丙烯酸胶料组成。值得注意的是，在 65% RH 下，仅用改性淀粉上浆的纱线具有更好的耐磨性。