CN113337019B

CN113337019B - Ultra-thin condom formula and production process thereof

Info

Publication number: CN113337019B
Application number: CN202110709507.4A
Authority: CN
Inventors: 史长水; 常新民; 史勤俭
Original assignee: Shandong Jimei Latex Technology Co ltd
Current assignee: Shandong Jimei Latex Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2022-11-15
Anticipated expiration: 2041-06-25
Also published as: CN113337019A

Abstract

The invention relates to the technical field of condom production, in particular to an ultrathin condom formula and a production process thereof, wherein the ultrathin condom formula comprises the following components in parts by weight according to moisture content: 1000 parts of natural latex, 12 parts of casein, 3 parts of a dispersing agent NF, 8 parts of ammonia water, 5.6 parts of an accelerator PX, 1.6 parts of an accelerator ZDC, 15 parts of a vulcanizing agent, 12.4 parts of an active agent and 5 parts of an anti-aging agent. Compared with the existing condom, the anti-bursting pressure and the bursting volume after water injection of the condom prepared by the formula are greatly improved, and the whole safety is better when the condom is used. The condom prepared by the process has the thickness of 0.01-0.03mm, an ultrathin structure and better comfort level in use. The condom prepared by the process adopts a plurality of stabilizer compounding agent dispersions, anti-sticking agents and isolating agents, and finally, the preparation of each new process step in the process is combined, so that the overall anti-aging performance and stability of the condom are better, the comfort level during wearing can be improved due to stronger expansion force, and the overall comprehensive performance is greatly improved.

Description

Ultra-thin condom formula and production process thereof

Technical Field

The invention relates to the technical field of condom production, in particular to an ultrathin condom formula and a production process thereof.

Background

The condom is a circular film product, and the edge of the tube opening is rolled into an annular edge. The film is transparent and elastic, and the product mainly requires that the effective part of the film is watertight, and can be made into various types such as roughened films, special shapes, colors and the like. Condom is also called condom, which is male contraceptive, and it also has the function of preventing contact venereal disease infection, and can be used as barrier device in sexual life process to reduce the risk of female involuntary pregnancy. The effective rate of contraception was approximately 98% with each correct use.

The use of conventional condoms leads to a more or less reduced tactile sensation to the human body, however, most users are forced to use the condom in consideration of safe contraception because the main function of the condom in sexual life is to play a role in safe contraception after the use. For the above reasons, in view of the needs of users, improvements to condoms have been made in the present stage, mainly focusing on how to improve comfort, such as by improving the gum formulation to reduce the rejection rate, or improving the mold to reduce the thickness, so as to improve the sensory stimulation.

However, the inventor finds that the traditional condom is difficult to be improved in thickness degree and safety and later-stage material stretch resistance and durability after being compared with similar products on the market.

Therefore, the company develops a new ultrathin condom formula and a production process thereof after the formula and the production process of the condom are improved to a great extent by overcoming the difficulty, so as to better meet the use requirements of users.

Disclosure of Invention

In order to solve one of the technical problems, the invention adopts the technical scheme that: the formula of the ultrathin condom comprises the following components in parts by weight of moisture content: natural latex, a stabilizer, an accelerator, a vulcanizing agent, an activator and an anti-aging agent.

In any of the above schemes, the preferable ultra-thin condom formula comprises the following components in parts by weight by moisture content: 500-1500 parts of natural latex, 17-29 parts of stabilizer, 4.2-10.2 parts of accelerator, 10-20 parts of vulcanizing agent, 8.4-16.4 parts of activator and 2-8 parts of anti-aging agent.

In any of the above embodiments, preferably, the stabilizer comprises the following components: casein, a dispersing agent NF and ammonia water;

the accelerator comprises the following components: promoter PX, promoter ZDC;

the vulcanizing agent comprises the following components: sulfur;

the active agent comprises the following components: zinc oxide;

the anti-aging agent comprises the following components: an anti-aging agent 264.

The purpose of the stabilizer arranged therein is: is used for improving the stability of latex and facilitating the dispersion of various compounding agents during grinding.

The use of the complexing agent dispersion is as follows: the compounding agent can enhance the physical and mechanical properties of the rubber and improve the antioxidant and anti-aging properties.

The anti-sticking agent and the release agent have the following purposes: the anti-sticking agent and the isolating agent can effectively prevent rubber adhesion, facilitate demoulding of products and improve the process performance.

In any of the above embodiments, preferably, the concentration of the dry material of the natural latex is 60%, the concentration of the dry material of casein is 10%, the concentration of the dry material of the diffusing agent NF is 10%, the concentration of the dry material of the ammonia water is 25%, the concentration of the dry material of the accelerator PX is 40%, the concentration of the dry material of the accelerator ZDC is 40%, the concentration of the dry material of the vulcanizing agent is 50%, the concentration of the dry material of the active agent is 50%, and the concentration of the dry material of the anti-aging agent is 40%.

In any of the above schemes, the preferable ultra-thin condom formula comprises the following components in parts by weight by moisture content: 1000 parts of natural latex, 12 parts of casein, 3 parts of diffusant NF, 8 parts of ammonia water, 5.6 parts of accelerator PX, 1.6 parts of accelerator ZDC, 15 parts of vulcanizing agent, 12.4 parts of active agent and 5 parts of anti-aging agent.

The amount of the stabilizer is appropriately adjusted depending on the stability of the natural rubber latex and the production area.

The invention also provides a production process of the ultrathin condom, which comprises the following steps:

s1: preparing materials;

preparing a stabilizer solution and a dispersant solution after weighing the components in the formula of the ultrathin condom according to the proportion, preparing a compounding agent dispersion, and preparing an anti-sticking agent and a separant;

first, all the raw materials used are inspected to identify the product's packaging designation, model, weight and origin. Then opening the package, identifying whether the appearance of the used raw materials conforms to the technical requirements, and weighing for use;

after use, make the original record of deployment.

Weighing apparatus is 50g platform scale, the maximum weighing is 50-100 Kg, and the error is not more than plus or minus 0.5Kg; the container used for weighing is a pail, a measuring cup with large capacity and the like.

The preparation operation is strictly performed according to the operating regulations.

During pre-vulcanization, various fine materials are added according to a specified sequence after being checked and re-weighed, and are not required to be reversed and disordered; the vulcanization recording card is carefully filled in item by item during operation.

All raw materials are well recorded in the aspects of receiving and preparing; the ingredient class manager should check every day, and if the ingredient class manager does not meet the requirements of the process rules, the agent class manager should immediately point out and correct the ingredient class manager in time.

S2: preparing vulcanized latex;

s3: curing, standing and filtering vulcanized latex;

s4: producing a condom linkage machine to obtain a semi-finished product;

s5: post-processing of the semi-finished product;

s6: inspecting the obtained product, and packaging to obtain the final product.

In any of the above embodiments, it is preferable that the preparing a stabilizer, dispersant solution in the S1 step includes: preparing a 10% casein solution, preparing a 10% NF solution;

said preparing a complexing agent dispersion in step S1 comprises: preparing 50% sulfur dispersion, preparing 40% accelerator PX, preparing 40% ZDC dispersion, preparing 50% zinc oxide dispersion, and preparing 264 mixed dispersion.

In any of the above embodiments, the specific preparation process for preparing the 10% casein solution is as follows:

(1) Weighing casein, wetting and expanding the casein with soft water for more than four hours, and observing the casein is fully dissolved and has no large particles;

(2) Adding ammonia water (and borax) and stirring until the mixture is completely dissolved;

(3) Ammonia water is used according to the actual concentration;

(4) Covering the prepared solution for later use;

wherein, the preparation process comprises the following raw materials by weight: 4Kg of casein, 0.64Kg of borax, 1.24Kg of 15% ammonia water and 41.8Kg of soft water;

note: borax is generally added in summer, the service life of one batch of borax prepared in summer is not more than one week, and other seasons can be properly prolonged;

in any of the above embodiments, the specific process for preparing a 10% NF solution is as follows:

accurately weighing NF, dissolving in soft water, stirring intermittently, heating to dissolve completely, stirring well and filtering when in use;

wherein, the preparation process comprises the following raw materials by weight: NF 6.194Kg, soft water 50 Kg.

In any of the above embodiments, the specific formulation process for preparing the 50% sulfur dispersion is as follows:

1. grinding, wherein the volume of a sand grinding cylinder is 250dm < 3 >, the particle size of the fine beads is 2-5mm, and the dosage is 100Kg;

2. grinding time: not less than 6 hours;

3. recording: a usage record is made.

Wherein, the preparation process comprises the following raw materials by weight: 50Kg of sulfur, 10% of casein, 10% of NF20Kg of soft water, and 20Kg of soft water.

In any of the above embodiments, it is preferable that the specific formulation process for formulating 40% of promoter PX is as follows:

2. grinding time: not less than 6 hours;

3. and (4) checking items: the appearance is odorless and has no abnormal thickening, and no control item is made;

4. recording: a usage record is made.

Wherein, the preparation process comprises the following raw materials by weight: PX 40Kg, 10% casein 20Kg, 10% NF 10Kg, soft water 30 Kg.

In any of the above embodiments, it is preferred that the specific formulation process for formulating 40% ZDC dispersions is as follows:

2. grinding time: more than 6 hours;

3. and (4) checking items: the appearance has no odor and abnormal thickening phenomenon, and no control item is made;

4. recording: a usage record is made.

Wherein, the preparation process comprises the following raw materials by weight: ZDC 40Kg, 10% casein 10Kg, 10% NF20Kg, soft water 30 Kg.

In any of the above embodiments, it is preferred that the specific formulation process for formulating the 50% zinc oxide dispersion is as follows:

1. the volume of the sand grinding cylinder is 250dm3, the particle size of the fine beads is 2-5mm, and the dosage is 100kg;

2. grinding time: not less than 6 hours;

3. and (4) checking items: the appearance is odorless and has no abnormal thickening, and no control item is needed;

4. recording: a usage record is made.

Wherein, the preparation process comprises the following raw materials by weight: 50% of zinc oxide Kg, 10% of casein 20Kg, 10% of NF10 Kg, and soft water 20Kg.

In either of the above embodiments, it is preferred that the specific formulation process for formulating 264 blend dispersions is as follows:

1. the volume of the sanding cylinder is 250dm3, the particle size of the fine beads is 2-5mm, and the dosage is 100kg;

2. grinding time: not less than 6 hours

3. And (4) checking items: the appearance is odorless and has no abnormal thickening, and no control item is required.

4. Recording: a usage record is made.

Wherein, the preparation process comprises the following raw materials by weight: 264 40Kg, 10% casein 20Kg, 10% NF10 Kg, soft water 30 Kg.

Note that:

1. during the grinding treatment, the glass beads for grinding are calibrated once every year in principle, and are required to be supplemented in time when meeting special loss.

2. Each grinding cycle is subject to a downtime allowing for a corresponding extended period.

3. The maximum sanding weight of the sanding cylinder is 100kg.

4. And (3) sanding and feeding various dispersions once for a batch, uniformly stirring the sanded materials, and sampling and measuring.

Key process control points:

the particle size and sedimentation amount of the sulfur and zinc oxide dispersoid in the compounding agent dispersoid of the condom and the uniformity of film forming are taken as the process key points.

The sulfur dispersion used for condom has particle size below 2um (95%) and particle size distribution center of 0.7um (flat)

Average level), the sedimentation amount is controlled to be 30mg/cm2.H, the particle size of the zinc oxide dispersion is controlled to be below 0.8um (95%),

the particle size distribution center was 0.4um (average level), and the amount of sedimentation was controlled to 30mg/cm 2.H.

The settling amount of the other dispersions is performed according to the requirements of the process specification.

The preparation process of the anti-sticking agent and the release agent comprises the following steps:

mixing water at normal temperature 20kg and positive soap at 50% 30kg, and dissolving completely.

Wherein, the preparation process comprises the following raw materials by weight: 30Kg of 50% positive soap and 20Kg of soft water.

Note that: the protective articles should be worn when preparing and contacting the positive soap.

In any of the above embodiments, it is preferable that the vulcanized latex preparation process in the S2 step is specifically as follows:

9.1 The formula is as follows: the method is executed according to the regulation of JM/QT 751-02 and issued by a technician in a workshop;

9.2 process conditions:

(1) Checking whether the mechanical equipment is normal or not, stripping rubber in the vulcanizing tank, closing a valve, pressing to a preset calibrated scale, and preventing rubber leakage when two persons are present during pressing;

(2) Adding tap water into a hot water tank, heating to 50-65 ℃, starting a vulcanizing tank stirrer, adding a proper amount of soft water, adding stabilizer casein, NF and ammonia water into the vulcanizing tank, starting a circulating hot water valve and a hot water circulating pump, starting heating to 43-55 ℃, then sequentially adding various dispersions, requiring accurate weighing and rechecking, slowly stirring and adding, wherein the adding sequence is as follows: sulfur, accelerator, anti-aging agent and zinc oxide. Heat-preserving heat treatment is carried out for less than or equal to 5 hours, and the water temperature is not higher than 55 ℃ in the heat treatment process. Continuously stirring in the vulcanization process, controlling the total solid content of vulcanized rubber to be (45 +/-5)%, and controlling the chloroform value of the vulcanized rubber to be at the third beginning-third end;

(3) Measuring the chloroform value, discharging when the chloroform value meets the requirement, and checking whether the valves of the parking tanks are tightly closed and firmly bound by using a discharging glue; the material discharging pipe and the material discharging pipe are flushed by a small amount of soft water after the material discharging is finished;

(4) Observing temperature change and rubber material condition in the heat treatment and vulcanization processes, and filling the vulcanization card carefully;

(5) Closing the water, electricity and heating valves, sealing the rubber material by using plastic cloth, opening circulating cooling water if necessary, hanging a vulcanization card, and cleaning to be sanitary;

(6) And after centrifugation, sampling and measuring, wherein the result meets the quality control standard requirement in the condom production process.

In any of the above embodiments, the curing, standing and filtering processes of the vulcanized latex in the step S3 are specifically as follows:

1. the rubber material standing and filtering conditions are as follows:

standing the rubber for more than 72 hours, filtering with a screen window filter, centrifuging with a high-speed tube centrifuge at 15000 rpm, removing residues, standing the treated latex for more than 6 hours, filtering again with a stainless steel mesh of 200 meshes, putting into a machine table rubber adding tank, adding an adjusting material, adjusting total solids, sampling, conveying to a rapid test machine, and meeting the requirements of the condom process formula. Standing for more than 8 hours for use, and adjusting in time when the ammonia content is lower than the index.

2. Control index of pre-vulcanized rubber (parking pot)

Item	Index mark
		Total solids content%	40-50
Chloroform number	Three beginning-three end

3. Feeding requirement of linkage machine (slurry tank)

The product is required to be sent to a machine station glue adding tank 8 hours before use.

In any of the above embodiments, it is preferable that the process for manufacturing the condom in the step S4 is as follows:

1. preparation work before production:

1.1, cleaning and adding the model once when stopping production, and adding lubricating oil once when wiping the main chain; the tightness of the installed model is proper, the model is vertical, and the model is cleaned by mixing industrial hydrochloric acid and water into a mixture of 1:1, starting a linkage machine to run the model for at least 2 circles through a pickling tank at the speed of 6-7 m/min, cleaning the model until the model is clean, and immediately flushing the acid solution with clear water to prevent equipment from being damaged;

1.2, cleaning the anti-sticking groove and replacing fresh liquid once each time of production stoppage, cleaning the demoulding groove once, and thoroughly washing dirt of the demoulding device once each time (specifically mastered by a workshop according to the use condition);

1.3, cleaning the rubber groove once per month in normal production, filtering rubber latex in the rubber groove once, and centrifuging once. Standing for more than 8 hours for use, wherein the water for cleaning the glue tank is to be wiped clean, the total solid content is reduced by not more than 1%, and the glue tank is cleaned by firstly using tap water and finally using soft water;

1.4, arranging and cleaning the stripping box and the die cleaning device once each time, and removing accumulated process wastes, impurities and the like;

1.5, before driving, carrying out comprehensive inspection, opening a main valve, then opening hot valves of all water tanks and drying ovens to gradually raise the temperature of all parts, sending signals, starting a main switch, starting a hemming roller and a mold washing device, starting a main machine, and gradually increasing the speed of the vehicle from 0 to a normal speed;

1.6, installing a dipping tank stirrer, cleaning a filter screen, adding the filter screen into the tank, starting the stirrer, scraping rubber sheets, clots, impurities and the like, flushing a rubber adding pipe to ensure that the rubber sheets, the clots, the impurities and the like are smooth, adjusting the rubber temperature and the rubber surface height, and maintaining the relative humidity of a dipping chamber to be more than or equal to 30 percent (serving as a reference index);

1.7, after the temperature of each part meets the process requirements, lifting the dipping glue tank to start production, wherein the glue temperature must reach more than 30 ℃, the dipping length is adjusted in time, and people watch the dipping glue tank when lifting the dipping glue tank to prevent the model from being damaged.

2. And (3) a mold washing process:

2.1, cleaning the mould by tap water, and then cleaning and soaking by soft water with the temperature of more than 65-75 ℃, wherein the requirements on preparing the soft water are as follows: the conductivity is less than or equal to 40;

2.2, the wiping cloth needs to be replaced frequently; the model is replaced and cleaned twice every shift, and the water drops on the head of the model are guaranteed to be wiped off;

2.3, the model is self-dried after being soaked in hot water;

2.4, pickling the die for 1 time per shift;

3. latex dipping process:

3.1, setting the technical indexes of the dipping sizing material:

item	One pass	Two times	Three times
				Total solids content	38-42	43-50	43-50
Chloroform number		Three last-four first
				Total alkalinity (%)		0.4-0.6

The measurement is carried out once a day, the unqualified rubber is timely adjusted, the rubber temperature is maintained at 28-35 ℃, and the test is carried out in the dipping environment (reference item) of a dipping chamber at 30-42 ℃. Viscosity is a parameter index and is measured when necessary.

3.2, steam pressure: not less than 0.50MPa

3.3, vehicle speed: (180-220) min/min;

3.4, dipping height: the product produced according to the national standard is firstly (210 + 5) mm, and the second and third times are about 5mm shorter than the first time, and the specific dipping height of the produced product is determined by a workshop according to other standard requirements so as to ensure that the product reaches the current length;

3.5, single heavy control:

w52 +/-2 mm, the thickness of the film is 1.00-1.20 g/piece, the thickness of the film is 0.050-0.060mm, and the length of the film is more than or equal to 160mm;

w52 +/-2 mm, ultrathin thickness of 0.80-1.00 g/piece, thickness of 0.030-0.050mm, length greater than or equal to 160mm;

w52 +/-2 mm, 1.30-1.40 g/piece of the common material, 0.055-0.075mm in thickness and more than or equal to 160mm in length;

w52 +/-2 mm, 1.35-1.50 g/piece of abnormal shape and the length of the abnormal shape is more than or equal to 160mm;

the method comprises the following steps: the spot check is carried out once every hour every shift, and the adjustment is carried out in time when the spot check does not accord with the hour.

3.6, the flow of the rubber material is kept in the production process, the rubber surface is clean, bubbles, impurities, oil stains and the like are scraped at any time, the rubber adding pipe is required to be kept smooth, the flow is proper, and a certain rubber surface height is kept;

the mixer is cleaned at least once every shift, the filter screen is frequently washed and kept clean, and the process parameters are recorded once every 1 hour;

4. drying the adhesive film the process comprises the following steps:

drying temperature: hot air is used for one time: 110 to 130 ℃; hot air is carried out for two times and three times: 110 to 130 ℃; drying for one time at 80-100 ℃; 2. drying for three times at 80-110 deg.C; drying at 50-70 deg.C after crimping;

5. and (3) curling process:

5.1, the degree of tightness between the model and the roller is moderate, and the drying degree is proper;

5.2, the edge thickness is 0.8-1.5mm, and the total length is more than or equal to 160mm after edge curling;

5.3, the edges are required to be round, solid, free of twisted edges, oblique edges and hollow edges;

6. and (3) demolding process:

6.1, the temperature of an alkaline water tank is 55-65 ℃, the concentration of alkaline water is less than or equal to 1.0 percent, and the height of the alkaline soaking water is equal to the edge of the adhesive film;

6.2, preparing the positive soap of the anti-sticking agent groove into 1.0-1.5% solution when the groove is lifted, and supplementing 300-500ml of 30% positive soap solution every hour during normal production;

6.3, the concentration of the positive soap in the stripping tank is 0.1 to 0.3 percent;

6.4, if the stripping tank has bubbles, properly removing the bubbles (50-100 g of lactosilicone oil can be properly added per hour);

6.5, the demoulding groove avoids bringing in semi-finished products, oil substances, glass, rags or other objects, and the semi-finished products, the oil substances, the glass, the rags or the other objects are required to be checked and cleared on duty.

7. Shutdown precautions:

7.1, dropping the glue tank, taking out the glue tank stirrer, washing with water, and covering the glue tank (closing a glue valve in time if the machine is stopped temporarily);

7.2, closing a main valve;

7.3, closing the host machine, and pulling the speed back to zero;

7.4, all the switches of all the parts are closed, and finally, the main switch is closed;

7.5, the products in shift must be processed in shift.

Key process control point

The particle size and sedimentation of the sulphur and zinc oxide dispersion in the compounding agent dispersion of the condom, the thickness (i.e. mass) of the product,

the uniformity of the film should be regarded as the process key point.

The sulfur dispersion used for condoms has a particle size controlled below 2um (95%), a particle size distribution center of 0.7um (average level), a sedimentation rate controlled below 30mg/cm2.H, a particle size of zinc oxide dispersion controlled below 0.8um (95%), a particle size distribution center of 0.4um (average level), and a sedimentation rate controlled below 30mg/cm 2.H.

The quality control of the condom product is executed according to technical notice or annual contract scheme, the film forming uniformity of the product adhesive film is reflected by the blasting performance in the production process.

The key points of the heat treatment process of the latex are as follows:

adding a stabilizer according to the condition of the sizing material, and then carrying out heat preservation and treatment, wherein the conditions are as follows: the water temperature is less than or equal to 55 ℃, the glue temperature is 30-40 ℃, and the time is more than or equal to 5 hours.

After the heat treatment is finished, the glue temperature is adjusted to 40-50 ℃, various dispersions are added, and the adding sequence is according to the specification. The sulfuration time is more than or equal to 10 hours, and the materials are discharged after the chloroform value is reached.

In any of the above schemes, preferably, the semi-finished product post-treatment process in the step S5 is specifically as follows:

1. a foam release agent; soaking the semi-finished product in a separant:

(1) Carrying out soaking and washing treatment by using an integrated after-vulcanizing machine;

(2) And treatment capacity: the product is produced once in 40 minutes by the linkage machine;

(3) The treatment time is 10-30 minutes;

(4) The first preparation method of the separant comprises the following steps: preparing the separant water in the separant tank once a week, adding the separant and the water according to the formula 1 for the first preparation, and starting a stirrer to uniformly disperse the separant;

the formula 1 of the separant is as follows: 30kg of white carbon black and 1000kg of water in balance;

(5) And (3) adding a separant: in normal production, 15-20kg of separant and a proper amount of water are added into a tank; adding a release agent into the vulcanizing machine after the products are integrated according to the requirement of the formula 2, wherein the release agent water pumped into the vulcanizing machine each time accounts for about 1/2-2/3 of the volume of the rotary drum; 100-150g of emulsified silicone oil is added into the separant (formula 2) of each product;

1/4 of the water used as the separant in the preparation tank needs to be drained off every shift, the 1000kg of tap water is replenished, and the white carbon black 5kg is added for use.

2. Final drying process

(1) Starting the integrated post-vulcanizing machine to throw off the excessive water (about 2-5 minutes) of the product at the rotation speed of (8-12) rpm;

(2) Opening a blower (hot air) to dry the product, wherein the rotating speed is accelerated in the drying process (but not more than 36 r/min);

(3) Drying the product at 75-110 ℃ for 40-60 minutes;

(4) Products in the shaking box are not allowed to be piled and agglomerated in the drying process;

(5) The change condition of the drying temperature is often checked to prevent over-sulfur or under-sulfur of the product;

(6) After drying, cold shaking to below 50 ℃, taking out the product in the shaking box, and putting the product into a specified product basket to prevent the product from falling to the ground;

(7) Filling labels, weighing, then sending to a pre-inspection and checking, and finally sending to a wool product room to stack in order;

(8) When edge cracking occurs, the rotating speed of the post-vulcanizing machine is relatively slowed down in the soaking and washing and final drying processes, and a cold powder mixing process is added in the final drying process;

(9) And products are required to fall to the ground when being conveyed after the demoulding process, and the loading container needs to be cleaned.

In any of the above embodiments, preferably, the step of inspecting the obtained product in step S6 and obtaining a finished product after packaging specifically includes the following steps:

1. and (4) finished product inspection:

1.1, pre-checking: the condom pre-inspection is carried out by manual inspection, sampling is carried out according to the amount of 50 condoms per batch (post-processing batch), and the appearance defect is not more than 2 percent and the condom is allowed to be electrically inspected.

1.2, according to the electric inspection operation instruction, each product is sleeved on a die of a dry method electric inspection machine, and the phenomena of shoulder pulling, edge shrinking and edge curling cannot occur (see JM/QT 751-06 rubber condom electric inspection operating instructions for details).

1.3, inspecting pinhole and blasting performance of the product after electric inspection, submitting to factory level inspection (JM/QT 751-05) after qualified, and sending to package after qualified by the factory level inspection.

2. Packaging a finished product:

2.1, the condom is packaged in a single sealing way.

2.2, the dosage of silicone oil: and (4) dropwise adding according to the requirements of technical notice or production scheduling notice, wherein the dosage of the silicone oil is not less than 350mg per silicone oil.

2.3, the specific requirements and regulations of the package are detailed in JM/QT 751-03 and JM/QT 751-04.

3. And (4) inspecting a finished product:

the inspection of the finished condom product is according to GB7544-2009, and for export and other standard requirements, the inspection is carried out according to the standard or specification stipulated by a contract.

Compared with the prior art, the invention has the following beneficial effects:

1. compared with the existing condom, the anti-bursting pressure and the bursting volume after water injection of the condom prepared by the formula are greatly improved, and the whole safety is better when the condom is used.

2. The condom prepared by the process has the thickness of 0.01-0.03mm, an ultrathin structure and better comfort level in use.

3. The condom prepared by the process adopts various stabilizer compounding agent dispersoid, anti-sticking agent and isolating agent, and finally combines the preparation of each new process step in the process, so that the whole anti-aging performance and stability of the condom are better, the comfort level during wearing can be improved due to stronger expansion force, and the whole comprehensive performance is greatly improved.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.

FIG. 1 is a flow chart of the production process of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Example 1:

the formula of the ultrathin condom comprises the following components in parts by weight of moisture content: 1000 parts of natural latex, 12 parts of casein, 3 parts of a dispersing agent NF, 8 parts of ammonia water, 5.6 parts of an accelerator PX, 1.6 parts of an accelerator ZDC, 15 parts of a vulcanizing agent, 12.4 parts of an active agent and 5 parts of an anti-aging agent.

the accelerator comprises the following components: promoter PX, promoter ZDC;

the vulcanizing agent comprises the following components: sulfur;

the active agent comprises the following components: zinc oxide;

Example 2:

the formula of the ultrathin condom comprises the following components in parts by weight of moisture content: 800 parts of natural latex, 10 parts of casein, 1 part of a dispersing agent NF, 6 parts of ammonia water, 3.6 parts of an accelerator PX, 0.6 part of an accelerator ZDC, 10 parts of a vulcanizing agent, 8.4 parts of an active agent and 2 parts of an anti-aging agent.

the accelerant comprises the following components: promoter PX, promoter ZDC;

the vulcanizing agent comprises the following components: sulfur;

the active agent comprises the following components: zinc oxide;

In any of the above embodiments, preferably, the concentration of the dry material of the natural latex is 60%, the concentration of the dry material of casein is 10%, the concentration of the dry material of the diffusing agent NF is 10%, the concentration of the dry material of the ammonia water is 25%, the concentration of the dry material of the accelerator PX is 40%, the concentration of the dry material of the accelerator zcc is 40%, the concentration of the dry material of the vulcanizing agent is 50%, the concentration of the dry material of the active agent is 50%, and the concentration of the dry material of the anti-aging agent is 40%.

Example 3:

an ultrathin condom formula comprises the following components in parts by weight of moisture content: 1200 parts of natural latex, 14 parts of casein, 5 parts of a dispersing agent NF, 10 parts of ammonia water, 7.6 parts of an accelerator PX, 2.6 parts of an accelerator ZDC, 20 parts of a vulcanizing agent, 16.4 parts of an active agent and 8 parts of an anti-aging agent.

In any of the above embodiments, it is preferred that the stabilizer comprises the following components: casein, a dispersing agent NF and ammonia water;

the accelerant comprises the following components: promoter PX, promoter ZDC;

the vulcanizing agent comprises the following components: sulfur;

the active agent comprises the following components: zinc oxide;

s1: preparing materials;

after use, make the original record of deployment.

During pre-vulcanization, various fine materials are added according to a specified sequence after being checked and reweighed, and are not required to be reversed and disordered; the vulcanization recording card should be carefully filled in item by item during operation.

Recording the acceptance and preparation of all raw materials; the ingredient class manager should check every day, and if the ingredient class manager does not meet the requirements of the process regulation, the ingredient class manager should point out immediately and correct in time.

S2: preparing vulcanized latex;

s3: curing, standing and filtering vulcanized latex;

s4: producing a condom linkage machine to obtain a semi-finished product;

s5: post-processing of the semi-finished product;

s6: inspecting the obtained product, and packaging to obtain the final product.

In any of the above embodiments, it is preferred that the specific formulation process for the 10% casein solution is as follows:

(3) Ammonia water is used according to the actual concentration;

(4) Covering the prepared solution for later use;

note: borax is generally added in summer, the service life of each batch of borax is not more than one week when being prepared in summer, and the service life of borax can be properly prolonged in other seasons;

preferably, in any of the above embodiments, the specific formulation process of formulating 10% of the NF solution is as follows:

1. grinding, wherein the volume of a grinding cylinder is 250dm < 3 >, the particle size of the fine beads is 2-5mm, and the dosage is 100Kg;

2. grinding time: not less than 6 hours;

3. recording: a usage record is made.

Wherein, the preparation process comprises the following raw materials by weight: 50Kg of sulfur, 10Kg of casein, 10% NF20Kg, and 20Kg of soft water.

2. grinding time: not less than 6 hours;

4. recording: a usage record is made.

2. grinding time: more than 6 hours;

4. recording: a usage record is made.

2. grinding time: not less than 6 hours;

4. recording: a usage record is made.

2. grinding time: not less than 6 hours

4. Recording: a usage record is made.

Note that:

2. Each grinding cycle is subject to a downtime allowing a corresponding extension of time.

3. The maximum sanding weight of the sanding cylinder is 100kg.

4. And (3) sanding and feeding various dispersions for one batch at a time, uniformly stirring the sanded materials, and sampling and measuring.

Key process control points:

Compared with the existing condom, the bursting pressure resistance and bursting volume after water injection of the condom prepared by the formula are greatly improved, and the overall safety is better when the condom is used.

The condom prepared by the process has the thickness of 0.01-0.03mm, an ultrathin structure and better comfort level in use.

The condom prepared by the process adopts various stabilizer compounding agent dispersoid, anti-sticking agent and isolating agent, and finally combines the preparation of each new process step in the process, so that the whole anti-aging performance and stability of the condom are better, the comfort level during wearing can be improved due to stronger expansion force, and the whole comprehensive performance is greatly improved.

In any of the above embodiments, it is preferable that the vulcanized latex preparation process in the step S2 is specifically as follows:

9.2 Process conditions:

(2) Adding tap water into a hot water tank, heating to 50-65 ℃, starting a vulcanizing tank stirrer, adding a proper amount of soft water, adding stabilizer casein, NF and ammonia water into the vulcanizing tank, starting a circulating hot water valve and a hot water circulating pump, starting to heat to 43-55 ℃, then sequentially adding various dispersions, requiring accurate weighing and rechecking, slowly stirring and adding, and feeding in sequence: sulfur, accelerator, anti-aging agent and zinc oxide. Heat preservation heat treatment is carried out for less than or equal to 5 hours, and the water temperature is not higher than 55 ℃ in the heat treatment process. Continuously stirring in the vulcanization process, controlling the total solid content of vulcanized rubber to be (45 +/-5)%, and controlling the chloroform value of the vulcanized rubber to be at the third beginning-third end;

(3) Measuring the chloroform value, discharging when the chloroform value meets the requirement, and checking whether the valves of the parking tanks are tightly closed and firmly bound by using a discharging glue; the material discharging pipe and the vulcanizing tank are flushed with a small amount of soft water after the material discharging is finished;

1. the rubber material standing and filtering conditions are as follows:

standing the rubber for more than 72 hours, filtering with a screen window filter, centrifuging with a 15000 rpm high-speed tubular centrifuge, removing residues, standing the treated latex for more than 6 hours, filtering again with a 200-mesh stainless steel net, putting into a machine table rubber adding tank, adding an adjusting material, adjusting total solids, sampling, conveying to a rapid test, and achieving the requirements of the condom process formula. Standing for more than 8 hours for use, and adjusting in time when the ammonia content is lower than the index.

2. Control index of pre-vulcanized rubber (parking pot)

3. Feeding requirement of linkage machine (slurry tank)

The glue is required to be sent to a machine glue adding tank 8 hours before use.

1. preparation work before production:

1.1, cleaning and adding the model once when stopping production, and adding lubricating oil once when wiping the main chain; the tightness of the installed model is proper, the model is vertical, and the cleaning model is prepared from industrial hydrochloric acid and water into a mixture of 1:1, starting a linkage machine at a speed of 6-7 m/min to ensure that the model runs for at least 2 circles through a pickling tank until the model is cleaned, and immediately washing off the acid solution by using clear water to prevent equipment from being damaged;

1.3, cleaning the rubber tank once every month in normal production, filtering rubber latex in the rubber tank once, and centrifuging once. Standing for more than 8 hours for use, wherein the water for cleaning the glue tank is to be wiped clean, the total solid content is reduced by not more than 1%, and the glue tank is cleaned by firstly using tap water and finally using soft water;

1.7, after the temperature of each part meets the process requirements, lifting the dipping glue tank to start production, wherein the glue temperature must reach more than 30 ℃, the dipping length is adjusted in time, and people watch the glue when lifting the tank to prevent the model from being damaged.

2. And (3) a mold washing process:

2.3, the model is self-dried after being soaked in hot water;

2.4, pickling the die for 1 time per shift;

3. latex dipping process:

3.1, setting the technical indexes of the dipping sizing material:

item	One pass	Two times	Three times
				Total solids content	38-42	43-50	43-50
Chloroform number		Three last to four first
				Total alkalinity (%)		0.4-0.6

3.2, steam pressure: not less than 7Kpa

3.3, vehicle speed: (180-220) min/min;

3.4, dipping height: the product produced according to the national standard is firstly (210 + 5) mm, and the second and third times are about 5mm shorter than the first time, and the specific dipping height of the produced product is determined by a workshop according to other standard requirements so as to ensure that the product reaches the current fixed length;

3.5, single heavy control:

w52 +/-2 mm, the thickness of the film is 1.00-1.20 g/piece, the thickness of the film is 0.045-0.050mm, and the length of the film is more than or equal to 160mm;

w52 +/-2 mm, ultrathin thickness of 0.70-0.80 g/piece, thickness of 0.020-0.030mm, length of more than or equal to 160mm;

4. and (3) a glue film drying process:

drying temperature: hot air is used for one time: 160-170 ℃; hot air is carried out for two times and three times: 160-170 ℃; drying for one time at 80-100 ℃; 2. drying for three times at 80-110 deg.C; drying at 50-70 deg.C after crimping;

5. and (3) a curling process:

5.2, the edge thickness is 0.8-1.5mm, and the total length after edge curling is more than or equal to 160mm;

6. and (3) demolding process:

6.5, the demoulding groove avoids bringing in semi-finished products, oil substances, glass, rags or other objects, and the semi-finished products, the oil substances, the glass, the rags or the other objects are required to be checked and removed frequently.

7. Shutdown precautions:

7.2, closing a main valve;

7.3, closing the host machine, and pulling the speed back to zero;

7.5, the products in shift must be processed in shift.

1. a foam release agent; soaking the semi-finished product in a separant:

(3) The treatment time is 10-30 minutes;

every shift must take 1/4 of the water in the preparation tank off, and make up to 1000kg with tap water, add white carbon black 5kg, can use.

2. Final drying process

(1) Starting the integrated vulcanizing machine to throw off the redundant water of the product at the rotation speed of 8-12 rpm (about 2-5 minutes);

(3) Drying the product at 75-110 ℃ for 40-60 minutes;

(6) After drying, cold shaking to below 50 ℃, taking out the product in the shaking box, and putting the product into a specified product basket to ensure that the product does not fall to the ground;

1. and (4) finished product inspection:

1.1, pre-checking: the condom pre-inspection is manually inspected, and is sampled according to the amount of 50 condoms per batch (post-treatment batch), and the appearance defect of the condom is not more than 2 percent, and the condom is allowed to be electrically inspected.

2. Packaging a finished product:

2.1, the condom is packaged in a single sealing way.

3. And (4) inspecting a finished product:

the inspection of the finished condom products is based on GB7544-2009, and for export and other standard requirements, the inspection is carried out according to the standard or specification specified by the contract.

1. Compared with the existing condom, the anti-bursting pressure and bursting volume of the condom prepared by the formula are greatly improved, and the whole safety is better when the condom is used. (the explosion pressure of national standard condoms is not less than 1.0kpa and the explosion volume is not less than 18dm 3. The mean explosion pressure of ultrathin condoms produced by the formula is 1.8kpa and the explosion volume is 40dm 3.)

2. The condom prepared by the process has the thickness of 0.02-0.03mm, an ultrathin structure and better comfort level in use.

3. The condom prepared by the process adopts a plurality of stabilizer compounding agent dispersions, anti-sticking agents and isolating agents, and finally, the preparation of each new process step in the process is combined, so that the overall anti-aging performance and stability of the condom are better, the comfort level during wearing can be improved due to stronger expansion force, and the overall comprehensive performance is greatly improved.

4. 1.4 g of natural latex for common condoms and 0.8 g of condoms produced by the formula, and raw materials are saved by 40%.

The main equipment specification features used in the present invention are as follows:

1. a prevulcanization cylinder: the specification is phi 1000 multiplied by 1600, the capacity is 900kg, and the motor power is 0.6kw.

The heating mode is as follows: the circulating hot water is heated, and the stirrer rotates 22 to 25 revolutions per minute.

2. A tube centrifuge: model GF105B, drum specification phi 105 x 725; .

Effective volume: 5.3 liter speed: 15000 r/min and 1 t/h of processing capacity.

3. A sand mill: the specification phi is 700 multiplied by 1000; the capacity is 250dm3.

The rotation speed is 375 rpm; the motor power is 3KW.

4. Parking the cylinder: front vulcanization parking cylinder: phi 1300 multiplied by 1600; capacity: 1500Kg.

Linkage machine adds the thick liquid jar: phi 1000 is multiplied by 1600; capacity: 1200Kg.

5. Linkage machine: the machine length is 52m, the width is 3m, and the height is 4.2m.

The chain length is 183 m, and the linear speed is 0-12 m/min.

The total number of the die is 4500; the production volume was 12 thousands/shift.

6. Shaking the box: specification: a clothes dryer: capacity 100kg; the heating mode is as follows: the circulating hot air is heated.

Rotating speed: 36 rpm motor power: 1.5KW throughput: batch/hour.

7. Electric detection machine: length 8 m, width 1.8 m, height 2.5 m; chain length: 20.8 m; loading a modulus: 180 pieces of the Chinese herbal medicine are added; vehicle speed: less than or equal to 18 m/min.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention; it will be apparent to those skilled in the art that any alternative modifications or variations to the embodiments of the present invention may be made within the scope of the present invention.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. A production process of an ultrathin condom is characterized in that: the formula of the ultrathin condom comprises the following components in parts by weight of moisture content: 1000 parts of natural latex, 12 parts of casein, 3 parts of a dispersing agent NF, 8 parts of ammonia water, 5.6 parts of an accelerator PX, 1.6 parts of an accelerator ZDC, 15 parts of a vulcanizing agent, 12.4 parts of an active agent and 5 parts of an anti-aging agent;

wherein the stabilizer comprises: casein, a dispersing agent NF and ammonia water;

the accelerator comprises: promoter PX, promoter ZDC;

the vulcanizing agent comprises: sulfur;

the active agents include: zinc oxide;

the anti-aging agent comprises: an anti-aging agent 264;

the production process of the ultrathin condom comprises the following steps:

s1: preparing materials;

preparing a stabilizer solution and a dispersant solution after weighing the components in the ultra-thin condom formula according to the proportion, preparing a compounding agent dispersion, and preparing an anti-sticking agent and a separant;

mixing and dissolving 20kg of normal temperature water and 30kg of 50% positive soap completely;

the specific preparation process for preparing the anti-sticking agent and the separant comprises the following raw materials by weight: 50% positive soap 30Kg, soft water 20 Kg;

s2: preparing vulcanized latex;

s3: curing, standing and filtering vulcanized latex;

s4: producing a condom linkage machine to obtain a semi-finished product;

s5: post-processing of the semi-finished product;

s6: inspecting the obtained product, and packaging to obtain a finished product;

the preparing of the stabilizer, dispersant solution in the step S1 includes: preparing a 10% casein solution, preparing a 10% NF solution;

said preparing a complexing agent dispersion in step S1 comprises: preparing 50% of sulfur dispersion, preparing 40% of accelerant PX, preparing 40% of ZDC dispersion, preparing 50% of zinc oxide dispersion and preparing 264 mixed dispersion;

the production process of the condom integrated machine in the step S4 comprises the following specific steps:

1. preparation work before production:

2. washing the mold:

3. dipping latex:

4. drying the adhesive film:

5. edge curling:

6. demolding:

6-1, the temperature of an alkaline water tank is 55-65 ℃, the concentration of alkaline water is less than or equal to 1.0 percent, and the height of the alkaline soaking water is equal to the edge of the adhesive film;

6-2, preparing the positive soap of the anti-sticking agent groove into 1.0-1.5% solution when the groove is lifted, and supplementing 300-500ml of 30% positive soap solution every hour during normal production;

6-3 percent, the concentration of the positive soap in the stripping groove is 0.1-0.3 percent;

6-4, if the stripping tank has bubbles, properly removing the bubbles, and properly adding 50-100 g of lactosilicone oil per hour;

6-5, avoiding bringing semi-finished products, oil substances, glass, rags or other objects into the film stripping groove, and frequently checking and removing the film stripping groove;

the specific process for drying the dipped latex and the adhesive film comprises the following steps:

adopting the processing flows of dipping for one time, drying, dipping for two times, drying for two times, dipping for three times, drying for three times, curling and drying again;

wherein, the drying temperature is as follows: hot air is used for one time: 160-170 ℃; hot air is carried out for two times and three times: 160-170 ℃; drying for one time at 80-100 ℃; 2. drying for three times at 80-110 deg.C; after edge curling, drying at 50-70 ℃.

2. The production process of the ultrathin condom according to claim 1, characterized in that: the steps of inspecting the obtained product in the step S6 and obtaining a finished product after packaging are as follows:

1. and (4) finished product inspection:

1-1, pre-checking: the condom pre-inspection is carried out by manual inspection, sampling is carried out according to the amount of 50 condoms per batch, and the appearance defect is not more than 2 percent and the electric inspection is allowed;

1-2, sleeving each product on a die of a dry-method electrical inspection machine according to an electrical inspection operation instruction, wherein the phenomena of shoulder drawing, edge shrinking and edge curling cannot occur;

1-3, inspecting pinhole and blasting performance of the product subjected to electric inspection, submitting qualified product to factory inspection, and packaging qualified product after the factory inspection;

2. packaging a finished product;

3. and (5) inspecting a finished product.