A processing technology for nylon filament flannelette used in a rotary brush

Abstract

The present invention relates to the technical field of textile processing, and discloses a processing technology for nylon filament flannelette for a rolling brush, which includes selecting nylon filaments as the pile warp and adding a delustering agent to produce a delustering effect on the surface of the nylon filaments. A twisting process of directly twisting two filaments or twisting two filaments after twisting a single filament is adopted to obtain a flannelette surface with diverse styles and ensure the quality of the flannelette surface. An electro-bulking or air-bulking process is carried out on the nylon filaments to increase the fluffiness effect of the flannelette surface and ensure the breaking strength of the yarn. A weaving process is carried out, and the flannelette for the nylon rolling brush is obtained after processing. Polyester coated with a thickening agent is used as the weft yarn to solve the problems of poor consolidation effect and small hot-melt tensile force. Through the newly developed nylon filaments, the present invention improves the fluff hardness while ensuring the surface area of the fine-denier nylon through filament compound twisting and then weaving, and combines the designs of weaving and post-finishing, thereby obtaining a flannelette for a nylon rolling brush with a high paint absorption and release amount and high flatness.

Description

Technical Field

[0001] The invention relates to the technical field of textile processing, in particular to a processing technology of nylon filament velvet cloth for roller brushes. Background Art

[0002] In recent years, with the booming economies both domestically and internationally and people's increasing demands for a more refined living environment, the demand for the style and finish of surface coatings has grown, and so have the demands for the velvet used in paint rollers. Popular velvet rollers currently on the market have varying quality issues. For example, yarn-based products often suffer from loose hairs, which easily stain walls. Commonly used raw materials include nylon and acrylic yarns. The fiber bundles lack sufficient binding force to hold some hairs, leaving some exposed on the fabric surface. These hairs then adhere to the wall with paint, causing stains. This is an objective problem with yarn-based products and is difficult to completely resolve. Conventional nylon filament products have a disordered velvet surface, poor paint absorption and release, and uneven application. Ultrafine polyester filament products have a velvet surface with poor stiffness and are prone to collapsing, requiring only small rollers, which affects painting efficiency. Summary of the Invention

[0003] In response to the shortcomings of the existing technology, the present invention provides a processing technology for nylon filament velvet cloth for roller brushes. Through composite twisting and weaving of filaments, the hardness of the velvet is improved while ensuring the surface area of fine denier nylon. The obtained velvet cloth has high paint absorption and release capacity and high flatness.

[0004] To achieve the above purpose, the present invention is implemented by the following technical scheme: a nylon roller brush flannel, the flannel warp of the flannel is 600D / 48F*2, 600D / 78F*2 or 600D / 84F*2 nylon filament, and the density of the flannel after weaving is 35-40 strands / cm 2 , the combing depth is shallow combing 0-1 / 4.

[0005] Preferably, the velvet cloth adopts a twisting process of directly twisting two filaments or twisting a single filament and then twisting two filaments together to obtain a velvet surface with various styles.

[0006] Preferably, the velvet cloth is prepared by using an electric expansion or air expansion process to expand the nylon filaments to increase the fluffy effect of the velvet surface.

[0007] Preferably, the flannel uses 301 thickened and foamed polyester as the weft yarn to improve its consolidation effect and hot melt tension.

[0008] The present invention also provides a processing technology for processing the above-mentioned flannel, comprising the following steps:

[0009] S1. Select nylon filaments of 600D / 48F*2, 600D / 78F*2 or 600D / 84F*2 as the pile warp, and add a delustering agent to produce a delustering effect on the surface of the nylon filaments. The weft yarn uses low-melting-point polyester filaments, and the warp yarn uses polyester filaments;

[0010] S2. Adopt a twisting process of directly twisting two filaments or twisting a single filament first and then twisting two filaments together to obtain a pile surface with diverse styles and ensure the quality of the pile surface;

[0011] S3. Carry out an electro-bulking or air-bulking process on the nylon filaments to increase the fluffiness of the pile surface and ensure the yarn breaking strength;

[0012] S4. Carry out a weaving process to obtain the flannelette for nylon roller brushes after processing;

[0013] S5. Use a thickening agent and adopt a coating and scraping finishing method to solve the problems of poor consolidation effect and small hot-melt tensile force.

[0014] Preferably, the content of the delustering agent is 1-1.5%.

[0015] Preferably, when directly twisting two filaments, the twist is 120-150T / M; when twisting a single filament first and then twisting two filaments together, the twist is 150(T / M) / 150(T / M)-180(T / M) / 180(T / M).

[0016] Preferably, in the electro-bulking process, the electro-bulking temperature is 150-180°C and the vehicle speed is 22-25m / min; in the air-bulking process, the air-bulking temperature is 100-105°C and the time is 40-50min.

[0017] Preferably, the post-finishing coating process is coating and scraping in one, and 301 thickening and foaming glue is used.

[0018] Preferably, after the weaving process, the pile density is 35-40 pieces / cm 2 , and the carding depth is light carding 0-1 / 4.

[0019] The present invention provides a processing process for nylon filament flannelette for roller brushes. It has the following beneficial effects:

[0020] Through the newly developed nylon filaments of the present invention, through filament composite twisting and then weaving, while ensuring the surface area of fine-denier nylon, the pile hardness is improved, combined with the design of weaving and post-finishing, so as to obtain a nylon roller brush flannelette with high paint absorption and release amount and high flatness. Specific embodiments

[0021] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] The following processing technology is adopted in this embodiment for processing the flannelette for the nylon roller brush:

[0023] 1. Raw material selection:

[0024] When the nylon filament fiber is relatively thin, the specific surface area is large. The larger the contact area between nylon and paint, the greater the adsorption capacity, so the paint absorption ratio is larger; correspondingly, the paint release amount of the roller brush flannelette with relatively thin fibers is lower, and the painting area is larger.

[0025] Therefore, 600D / 48F*2 nylon filament, 600D / 78F*2 nylon filament, and 600D / 84F*2 nylon filament are selected as the warp for the flannelette, and both the paint absorption amount and the paint absorption amount are relatively large. The weft yarn uses 14S / D low-melting-point polyester filament, and the warp yarn uses 28S / D polyester filament;

[0026] Also, since the nylon filament does not obtain a comfortable luster, a delustering agent is added to produce a delustering effect on the surface of the nylon filament. Among them, the delustering agent is 1-1.5%.

[0027] 2. Raw material processing:

[0028] 2.1 Twisting process: In order to obtain a variety of styles of the flannelette surface and ensure the quality of the flannelette surface, the twisting process is adopted in this embodiment.

[0029] Two twisting methods and specific parameters:

[0030] ① Direct twisting of two filaments, with a twist of 120-150 T / M;

[0031] ② Twisting of a single filament and then twisting of two filaments together, with a twist of: 150 (T / M) / 150 (T / M)-180 (T / M) / 180 (T / M).

[0032] 2.2 Bulking process: In order to increase the fluffiness effect of the flannelette surface and ensure the breaking strength of the yarn, the bulking process is carried out on the nylon filament.

[0033] Two bulking processes and specific parameters:

[0034] Electrical bulking: The electrical bulking temperature is 150-180 °C, and the electrical bulking vehicle speed is 22-25 m / min;

[0035] Gas bulking: The gas bulking temperature is 100-105 °C, and the gas bulking time is 40-50 min.

[0036] 3. Weaving process:

[0037] Since the pile density affects the appearance flatness, stiffness and fluffiness of the product, and also determines the paint absorption and release performance of the product, the pile density is 35 - 40 filaments / cm 2 .

[0038] At the same time, the carding depth is an important process index of this product. The depth of carding means different degrees of flocculation and different looseness between fibers, resulting in different paint storage and release capabilities. Therefore, the carding depth is light carding 0 - 1 / 4.

[0039] 4. Post - finishing process: During the preparation process, problems such as poor consolidation effect and low hot - melt tensile strength occurred. To solve the contradiction between consolidation and hot - melt, 301 thickening and foaming is selected for post - finishing, and the coating and scraping are carried out in an integrated manner.

[0040] Example 1:

[0041] The embodiment of the present invention provides a processing technology for nylon filament flannelette for a roller brush, including the following steps:

[0042] 1. Raw material selection: Select 600D / 84F*2 nylon filament as the pile warp, with 1.5% delustering agent, 14S / D low - melting - point polyester filament as the weft yarn, and 28S / D polyester filament as the warp yarn.

[0043] 2. Raw material processing:

[0044] 2.1 Twisting process: Adopt the direct double - filament twisting process, with a twist of 120T / M.

[0045] 2.2 Yarn swelling process: Adopt electric swelling, with an electric swelling temperature of 180°C and an electric swelling vehicle speed of 22m / min.

[0046] 3. Weaving process: The pile density is 35 filaments / cm 2 , and the carding depth is light carding 1 / 5.

[0047] 4. Post - finishing process: Select 301 thickening glue for foaming, and then carry out the coating and scraping in an integrated manner.

[0048] Example 2:

[0049] The embodiment of the present invention provides a processing technology for nylon filament flannelette for a roller brush, including.

[0050] 1. Raw material selection: Select 600D / 48F*2 nylon filament as the pile warp, with 1% delustering agent, 14S / D low - melting - point polyester filament as the weft yarn, and 28S / D polyester filament as the warp yarn.

[0051] 2. Raw material processing:

[0052] 2.1 Twisting process: After single-filament twisting, two filaments are twisted together, with a twist of 180 (T / M) / 180 (T / M).

[0053] 2.2 Bulking process: Air bulking is used, with an air bulking temperature of 102°C and an air bulking time of 40 minutes.

[0054] 3 Weaving process: The pile density is 40 pieces / cm 2 , and the carding depth is light carding 1 / 4.

[0055] 4 Post-treatment process: 301 thickening glue is selected for foaming, and then the coating and scraping are integrated.

[0056] Comparative example 1:

[0057] The process steps are the same as those in Example 1, and the difference is that:

[0058] The twist in the twisting process is different from that in Example 1. When the twist is 90 T / M, the yarn filament breakage increases from 1 to 6 per 1000 m, and the pile standing degree is worse, making it more prone to lodging.

[0059] Comparative example 2:

[0060] The process steps are the same as those in Example 1, and the difference is that:

[0061] The air bulking temperature in the air bulking process is different from that in Example 1. When the temperature is 210°C, irreversible permanent deformation occurs in the nylon filament under external force, and the fiber breaking strength is significantly reduced, from 4.7 cN / dtex to 4.0 cN / dtex.

[0062] Comparative example 3:

[0063] The process steps are the same as those in Example 2, and the difference is that:

[0064] The pile density is different from that in Example 2. When the pile density is 49 pieces / cm 2 , the coating area increases from 2.48 m 2 to 2.52 m 2 , but the paint absorption ratio decreases from 2.5 to 2.4.

[0065] Comparative example 4:

[0066] The process steps are the same as those in Example 2, and the difference is that:

[0067] The carding depth is different from that in Example 2. When the carding depth is 3 / 4, the coating area decreases from 1.2 m 2 to 0.9 m 2 .

[0068] From the above comparative examples, it can be seen that through the newly developed polyamide filament of the present invention, by compound twisting and then weaving the filaments, while ensuring the surface area of the fine denier polyamide, the fluff hardness is increased, combined with the design of weaving and post-finishing, so as to obtain a flannelette for polyamide roller brushes with high paint absorption and release amount and high flatness.

[0069] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing technology for nylon filament flannelette used in a rotary brush, characterized in that, The steps include the following: S1. Select nylon filament of 600D / 48F*2, 600D / 78F*2 or 600D / 84F*2 as the pile warp, and add a delustering agent to produce a delustering effect on the surface of the nylon filament. The weft yarn uses low-melting-point polyester filament, and the warp yarn uses polyester filament. S2. For the nylon filament described in step S1, adopt a twisting process of directly twisting two filaments together or twisting a single filament first and then twisting two filaments together to obtain a pile surface with diverse styles and ensure the quality of the pile surface. S3. Conduct an electro-bulking or air-bulking process on the nylon filament to increase the fluffiness effect of the pile surface and ensure the yarn breaking strength. S4. Conduct a weaving process to obtain the flannelette for nylon rotary brush after processing. S5. Use a thickener and adopt a coating and finishing method to solve the problems of poor consolidation effect and small hot-melt tensile force. In step S2, when directly twisting two filaments together, the twist is 120 - 150 T / M; when twisting a single filament first and then twisting two filaments together, the twist is 150 (T / M) / 150 (T / M) - 180 (T / M) / 180 (T / M). In step S4, the pile density after the weaving process is 35 - 40 tufts / cm 2 , and the carding depth is light carding 0 - 1 / 4.

2. The processing technology of nylon filament flannelette for a rolling brush according to claim 1, characterized in that, In step S3, in the electro-bulking process, the electro-bulking temperature is 150 - 180 °C, and the vehicle speed is 22 - 25 m / min; in the air-bulking process, the air-bulking temperature is 100 - 105 °C, and the time is 40 - 50 min.

3. The processing technology of nylon filament flannelette for a rotary brush according to claim 1, characterized in that, In step S5, the coating and finishing method is an integrated coating, and 301 thickening and foaming glue is adopted.